Stainless Steel Composition Chart (AISI 201-384, 403-440C, PH Grades) | Aobo Steel<\/title>\n<meta name=\"description\" content=\"Chemical composition limits for standard AISI stainless steel types - austenitic, ferritic, duplex, martensitic and precipitation-hardening - carbon, chromium, nickel, molybdenum and nitrogen ranges.\">\n<style>\n:root{\n --aobo-accent:#2563eb; --aobo-accent-dark:#1e1e2e; --aobo-blue:#0c56d0; --aobo-blue-dark:#073b91;\n --aobo-text:#333; --aobo-muted:#888; --aobo-border:#e5e7eb; --aobo-border-dark:#ddd;\n --aobo-stripe:#f7f7f9; --aobo-hover:#e8f0fe; --aobo-radius:8px; --aobo-radius-sm:6px;\n --aobo-orange:#f59e0b; --aobo-fill:#e9ecef;\n }\n *{box-sizing:border-box;}\n html{-webkit-text-size-adjust:100%;}\n body{margin:0;background:#fff;color:var(--aobo-text);\n font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,sans-serif;\n font-size:15px;line-height:1.6;}\n\n \/* Root scope \u2014 WordPress theme guard *\/\n 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on this page) *\/\n table.ts-table thead th{cursor:default;}\n .ts-props a{color:var(--aobo-blue) !important;text-decoration:none !important;}\n .ts-props a:hover{text-decoration:underline !important;}\n table.ts-table td.ts-desc{white-space:normal;text-align:left;min-width:170px;}\n .ts-rel{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-blue);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;padding:1em 1.2em;}\n .ts-rel h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);}\n .ts-rel p{margin:0;font-size:.85em;line-height:1.9;color:var(--aobo-muted);}\n .ts-rel p a{font-weight:600;}\n<\/style>\n<\/head>\n<body>\n<section class=\"aobo-ht-ref ts-props\">\n <div class=\"aobo-wrap\">\n <div class=\"ts-hero\">\n <div class=\"ts-hero-top\">\n <div class=\"ts-kicker\"><span><\/span>Stainless Steel Reference Data<\/div>\n <h1>Stainless Steel Composition Chart<\/h1>\n <p>Chemical composition limits for the standard AISI stainless steel types — the austenitic, ferritic, duplex, martensitic and precipitation-hardening families. Ranges are in weight percent; a single value is a maximum unless marked “min”.<\/p>\n <\/div>\n <div class=\"ts-tool-area\">\n <div class=\"ts-legend\">\n <span><b>wt %<\/b> all values<\/span>\n <span><b>16.0-18.0<\/b> from–to range<\/span>\n <span><b>0.15 min<\/b> minimum content<\/span>\n <span><b>0.045<\/b> maximum limit<\/span>\n <span><b>—<\/b> not specified<\/span>\n <span><b>(a)–(b)<\/b> footnote<\/span>\n <\/div>\n <div class=\"ts-table-wrap\">\n <table class=\"ts-table\">\n <thead>\n <tr><th>Type<\/th><th>UNS<\/th><th>C<\/th><th>Mn<\/th><th>Si<\/th><th>Cr<\/th><th>Ni<\/th><th>P<\/th><th>S<\/th><th>Other<\/th><\/tr>\n <\/thead>\n <tbody>\n<tr class=\"ts-group\"><td colspan=\"10\">Austenitic Types<\/td><\/tr>\n<tr><td class=\"ts-grade\">201<\/td><td class=\"ts-num\">S20100<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">5.5-7.5<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">3.5-5.5<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.25 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">202<\/td><td class=\"ts-num\">S20200<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">7.5-10.0<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">4.0-6.0<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.25 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">205<\/td><td class=\"ts-num\">S20500<\/td><td class=\"ts-num\">0.12-0.25<\/td><td class=\"ts-num\">14.0-15.5<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.5-18.0<\/td><td class=\"ts-num\">1.0-1.75<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.32-0.40 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">301<\/td><td class=\"ts-num\">S30100<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">6.0-8.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">302<\/td><td class=\"ts-num\">S30200<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">302B<\/td><td class=\"ts-num\">S30215<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">2.0-3.0<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">303<\/td><td class=\"ts-num\">S30300<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">303Se<\/td><td class=\"ts-num\">S30323<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num ts-desc\">0.15 min Se<\/td><\/tr>\n<tr><td class=\"ts-grade\">304<\/td><td class=\"ts-num\">S30400<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-10.5<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">304H<\/td><td class=\"ts-num\">S30409<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-10.5<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">304L<\/td><td class=\"ts-num\">S30403<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">304LN<\/td><td class=\"ts-num\">S30453<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">302Cu<\/td><td class=\"ts-num\">S30430<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-4.0 Cu<\/td><\/tr>\n<tr><td class=\"ts-grade\">304N<\/td><td class=\"ts-num\">S30451<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-10.5<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">305<\/td><td class=\"ts-num\">S30500<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">10.5-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">308<\/td><td class=\"ts-num\">S30800<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">19.0-21.0<\/td><td class=\"ts-num\">10.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">309<\/td><td class=\"ts-num\">S30900<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">22.0-24.0<\/td><td class=\"ts-num\">12.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">309S<\/td><td class=\"ts-num\">S30908<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">22.0-24.0<\/td><td class=\"ts-num\">12.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">310<\/td><td class=\"ts-num\">S31000<\/td><td class=\"ts-num\">0.25<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.50<\/td><td class=\"ts-num\">24.0-26.0<\/td><td class=\"ts-num\">19.0-22.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">310S<\/td><td class=\"ts-num\">S31008<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.50<\/td><td class=\"ts-num\">24.0-26.0<\/td><td class=\"ts-num\">19.0-22.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">314<\/td><td class=\"ts-num\">S31400<\/td><td class=\"ts-num\">0.25<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.5-3.0<\/td><td class=\"ts-num\">23.0-26.0<\/td><td class=\"ts-num\">19.0-22.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">316<\/td><td class=\"ts-num\">S31600<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316F<\/td><td class=\"ts-num\">S31620<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.10 min<\/td><td class=\"ts-num ts-desc\">1.75-2.5 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316H<\/td><td class=\"ts-num\">S31609<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316L<\/td><td class=\"ts-num\">S31603<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316LN<\/td><td class=\"ts-num\">S31653<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo; 0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">316N<\/td><td class=\"ts-num\">S31651<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo; 0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">317<\/td><td class=\"ts-num\">S31700<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">11.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-4.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">317L<\/td><td class=\"ts-num\">S31703<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">11.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-4.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">321<\/td><td class=\"ts-num\">S32100<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">5 \u00d7 %C min Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">321H<\/td><td class=\"ts-num\">S32109<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">5 \u00d7 %C min Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">330<\/td><td class=\"ts-num\">N08330<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">0.75-1.5<\/td><td class=\"ts-num\">17.0-20.0<\/td><td class=\"ts-num\">34.0-37.0<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">347<\/td><td class=\"ts-num\">S34700<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">10 \u00d7 %C min Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">347H<\/td><td class=\"ts-num\">S34709<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">8 \u00d7 %C min – 1.0 max Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">348<\/td><td class=\"ts-num\">S34800<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.2 Co; 10 \u00d7 %C min Nb; 0.10 Ta<\/td><\/tr>\n<tr><td class=\"ts-grade\">348H<\/td><td class=\"ts-num\">S34809<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.2 Co; 8 \u00d7 %C min – 1.0 max Nb; 0.10 Ta<\/td><\/tr>\n<tr><td class=\"ts-grade\">384<\/td><td class=\"ts-num\">S38400<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">15.0-17.0<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Ferritic types<\/td><\/tr>\n<tr><td class=\"ts-grade\">405<\/td><td class=\"ts-num\">S40500<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">11.5-14.5<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.10-0.30 Al<\/td><\/tr>\n<tr><td class=\"ts-grade\">409<\/td><td class=\"ts-num\">S40900<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">10.5-11.75<\/td><td class=\"ts-num\">0.50<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num ts-desc\">6 \u00d7 %C min – 0.75 max Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">429<\/td><td class=\"ts-num\">S42900<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">14.0-16.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">430<\/td><td class=\"ts-num\">S43000<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">430F<\/td><td class=\"ts-num\">S43020<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">430FSe<\/td><td class=\"ts-num\">S43023<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num ts-desc\">0.15 min Se<\/td><\/tr>\n<tr><td class=\"ts-grade\">434<\/td><td class=\"ts-num\">S43400<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75-1.25 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">436<\/td><td class=\"ts-num\">S43600<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75-1.25 Mo; 5 \u00d7 %C min – 0.70 max Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">439<\/td><td class=\"ts-num\">S43035<\/td><td class=\"ts-num\">0.07<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">0.50<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.15 Al; 12 \u00d7 %C min – 1.10 Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">442<\/td><td class=\"ts-num\">S44200<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-23.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">444<\/td><td class=\"ts-num\">S44400<\/td><td class=\"ts-num\">0.025<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.5-19.5<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">1.75-2.50 Mo; 0.025 N; 0.2 + 4 (%C + %N) min – 0.8 max (Ti + Nb)<\/td><\/tr>\n<tr><td class=\"ts-grade\">446<\/td><td class=\"ts-num\">S44600<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.50<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">23.0-27.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.25 N<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Duplex (ferritic-austenitic) type<\/td><\/tr>\n<tr><td class=\"ts-grade\">329<\/td><td class=\"ts-num\">S32900<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.75<\/td><td class=\"ts-num\">23.0-28.0<\/td><td class=\"ts-num\">2.50-5.00<\/td><td class=\"ts-num\">0.040<\/td><td class=\"ts-num\">0.030<\/td><td class=\"ts-num ts-desc\">1.00-2.00 Mo<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Martensitic types<\/td><\/tr>\n<tr><td class=\"ts-grade\">403<\/td><td class=\"ts-num\">S40300<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.50<\/td><td class=\"ts-num\">11.5-13.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">410<\/td><td class=\"ts-num\">S41000<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">11.5-13.5<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">414<\/td><td class=\"ts-num\">S41400<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">11.5-13.5<\/td><td class=\"ts-num\">1.25-2.50<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">416<\/td><td class=\"ts-num\">S41600<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">416Se<\/td><td class=\"ts-num\">S41623<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num ts-desc\">0.15 min Se<\/td><\/tr>\n<tr><td class=\"ts-grade\">420<\/td><td class=\"ts-num\">S42000<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">420F<\/td><td class=\"ts-num\">S42020<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">422<\/td><td class=\"ts-num\">S42200<\/td><td class=\"ts-num\">0.20-0.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.75<\/td><td class=\"ts-num\">11.5-13.5<\/td><td class=\"ts-num\">0.5-1.0<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75-1.25 Mo; 0.75-1.25 W; 0.15-0.3 V<\/td><\/tr>\n<tr><td class=\"ts-grade\">431<\/td><td class=\"ts-num\">S43100<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">15.0-17.0<\/td><td class=\"ts-num\">1.25-2.50<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">440A<\/td><td class=\"ts-num\">S44002<\/td><td class=\"ts-num\">0.60-0.75<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">440B<\/td><td class=\"ts-num\">S44003<\/td><td class=\"ts-num\">0.75-0.95<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">440C<\/td><td class=\"ts-num\">S44004<\/td><td class=\"ts-num\">0.95-1.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75 Mo<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Precipitation-hardening types<\/td><\/tr>\n<tr><td class=\"ts-grade\">PH 13-8 Mo<\/td><td class=\"ts-num\">S13800<\/td><td class=\"ts-num\">0.05<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.10<\/td><td class=\"ts-num\">12.25-13.25<\/td><td class=\"ts-num\">7.5-8.5<\/td><td class=\"ts-num\">0.01<\/td><td class=\"ts-num\">0.008<\/td><td class=\"ts-num ts-desc\">2.0-2.5 Mo; 0.90-1.35 Al; 0.01 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">15-5 PH<\/td><td class=\"ts-num\">S15500<\/td><td class=\"ts-num\">0.07<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">14.0-15.5<\/td><td class=\"ts-num\">3.5-5.5<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.5-4.5 Cu; 0.15-0.45 Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">17-4 PH<\/td><td class=\"ts-num\">S17400<\/td><td class=\"ts-num\">0.07<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">15.5-17.5<\/td><td class=\"ts-num\">3.0-5.0<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-5.0 Cu; 0.15-0.45 Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">17-7 PH<\/td><td class=\"ts-num\">S17700<\/td><td class=\"ts-num\">0.09<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">6.5-7.75<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num ts-desc\">0.75-1.5 Al<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <ul class=\"ts-notes-list\">\n<li><sup>(a)<\/sup> Single values are maximum values unless otherwise indicated (a value followed by “min” is a minimum).<\/li>\n<li><sup>(b)<\/sup> Optional.<\/li>\n <\/ul>\n <div class=\"ts-disclaimer\">\n <h3>Table notes<\/h3>\n <p>The “Other” column gives additional specified elements — nitrogen, copper, titanium, niobium, aluminum, molybdenum, selenium and tungsten — as printed in the source.<\/p>\n <p>Type 420 carbon is a minimum (0.15% min); actual carbon varies by heat, so check the mill certificate where hardness matters. UNS S30430 appears in this table under its AISI designation 302Cu; some references list the same composition as 304Cu.<\/p>\n <p>Composition limits are heat analysis values from the source. Product analysis tolerances may apply — confirm the governing specification with your supplier before ordering.<\/p>\n <\/div>\n <div class=\"ts-rel\">\n <h3>Related reference pages<\/h3>\n <p><a href=\"\/stainless-steels\/\">Stainless steels overview<\/a> · <a href=\"\/420-stainless-steel\/\">420 stainless steel<\/a> · <a href=\"\/420-stainless-steel-heat-treatment\/\">420 stainless steel heat treatment<\/a> · <a href=\"\/440c-stainless-steel\/\">440C stainless steel<\/a> · <a href=\"\/440c-stainless-steel-properties\/\">440C stainless steel properties<\/a> · <a href=\"\/440c-stainless-steel-heat-treatment\/\">440C stainless steel heat treatment<\/a> · <a href=\"\/4cr13-stainless-steel\/\">4Cr13 stainless steel<\/a> · <a href=\"\/9cr18mo-stainless-steel\/\">9Cr18Mo stainless steel<\/a> · <a href=\"\/tool-steel-composition-chart\/\">Tool steel composition chart<\/a> · <a href=\"\/95cr18-stainless-steel-3\/\">95Cr18 (9Cr18) stainless steel<\/a> · <a href=\"\/stainless-steel-physical-properties-chart\/\">Stainless steel physical properties chart<\/a><\/p>\n <\/div>\n <p class=\"ts-source\">Source: ASM Handbook, Volume 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys, Table 2 “Compositions of standard stainless steels” (10th ed.). Reference data for comparison — verify the applicable standard before ordering.<\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>Stainless Steel Composition Chart (AISI 201-384, 403-440C, PH Grades) | Aobo Steel Stainless Steel Reference Data Stainless Steel Composition Chart Chemical composition limits for the standard AISI stainless steel types — the austenitic, ferritic, duplex, martensitic and precipitation-hardening families. Ranges are in weight percent; a single value is a maximum unless marked “min”. wt % […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-18236","page","type-page","status-publish","hentry"],"yoast_head":"\n<title>Stainless Steel Composition Chart for All AISI Grades - 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Ranges are in weight percent; a single value is a maximum unless marked “min”. wt %…","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"Stainless Steel Composition Chart (AISI 201-384, 403-440C, PH Grades) | Aobo Steel Stainless Steel Reference Data Stainless Steel Composition Chart Chemical composition limits for the standard AISI stainless steel types — the austenitic, ferritic, duplex, martensitic and precipitation-hardening families. Ranges are in weight percent; a single value is a maximum unless marked “min”. wt %…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/18236","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=18236"}],"version-history":[{"count":3,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/18236\/revisions"}],"predecessor-version":[{"id":18443,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/18236\/revisions\/18443"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=18236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

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class=\"aobo-wrap\">\n <div class=\"ts-hero\">\n <div class=\"ts-hero-top\">\n <div class=\"ts-kicker\"><span><\/span>Stainless Steel Reference Data<\/div>\n <h1>Stainless Steel Composition Chart<\/h1>\n <p>Chemical composition limits for the standard AISI stainless steel types — the austenitic, ferritic, duplex, martensitic and precipitation-hardening families. Ranges are in weight percent; a single value is a maximum unless marked “min”.<\/p>\n <\/div>\n <div class=\"ts-tool-area\">\n <div class=\"ts-legend\">\n <span><b>wt %<\/b> all values<\/span>\n <span><b>16.0-18.0<\/b> from–to range<\/span>\n <span><b>0.15 min<\/b> minimum content<\/span>\n <span><b>0.045<\/b> maximum limit<\/span>\n <span><b>—<\/b> not specified<\/span>\n <span><b>(a)–(b)<\/b> footnote<\/span>\n <\/div>\n <div class=\"ts-table-wrap\">\n <table class=\"ts-table\">\n <thead>\n <tr><th>Type<\/th><th>UNS<\/th><th>C<\/th><th>Mn<\/th><th>Si<\/th><th>Cr<\/th><th>Ni<\/th><th>P<\/th><th>S<\/th><th>Other<\/th><\/tr>\n <\/thead>\n <tbody>\n<tr class=\"ts-group\"><td colspan=\"10\">Austenitic Types<\/td><\/tr>\n<tr><td class=\"ts-grade\">201<\/td><td class=\"ts-num\">S20100<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">5.5-7.5<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">3.5-5.5<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.25 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">202<\/td><td class=\"ts-num\">S20200<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">7.5-10.0<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">4.0-6.0<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.25 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">205<\/td><td class=\"ts-num\">S20500<\/td><td class=\"ts-num\">0.12-0.25<\/td><td class=\"ts-num\">14.0-15.5<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.5-18.0<\/td><td class=\"ts-num\">1.0-1.75<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.32-0.40 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">301<\/td><td class=\"ts-num\">S30100<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">6.0-8.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">302<\/td><td class=\"ts-num\">S30200<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">302B<\/td><td class=\"ts-num\">S30215<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">2.0-3.0<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">303<\/td><td class=\"ts-num\">S30300<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">303Se<\/td><td class=\"ts-num\">S30323<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num ts-desc\">0.15 min Se<\/td><\/tr>\n<tr><td class=\"ts-grade\">304<\/td><td class=\"ts-num\">S30400<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-10.5<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">304H<\/td><td class=\"ts-num\">S30409<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-10.5<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">304L<\/td><td class=\"ts-num\">S30403<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">304LN<\/td><td class=\"ts-num\">S30453<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">302Cu<\/td><td class=\"ts-num\">S30430<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">8.0-10.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-4.0 Cu<\/td><\/tr>\n<tr><td class=\"ts-grade\">304N<\/td><td class=\"ts-num\">S30451<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">8.0-10.5<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">305<\/td><td class=\"ts-num\">S30500<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">10.5-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">308<\/td><td class=\"ts-num\">S30800<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">19.0-21.0<\/td><td class=\"ts-num\">10.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">309<\/td><td class=\"ts-num\">S30900<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">22.0-24.0<\/td><td class=\"ts-num\">12.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">309S<\/td><td class=\"ts-num\">S30908<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">22.0-24.0<\/td><td class=\"ts-num\">12.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">310<\/td><td class=\"ts-num\">S31000<\/td><td class=\"ts-num\">0.25<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.50<\/td><td class=\"ts-num\">24.0-26.0<\/td><td class=\"ts-num\">19.0-22.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">310S<\/td><td class=\"ts-num\">S31008<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.50<\/td><td class=\"ts-num\">24.0-26.0<\/td><td class=\"ts-num\">19.0-22.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">314<\/td><td class=\"ts-num\">S31400<\/td><td class=\"ts-num\">0.25<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.5-3.0<\/td><td class=\"ts-num\">23.0-26.0<\/td><td class=\"ts-num\">19.0-22.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">316<\/td><td class=\"ts-num\">S31600<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316F<\/td><td class=\"ts-num\">S31620<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.10 min<\/td><td class=\"ts-num ts-desc\">1.75-2.5 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316H<\/td><td class=\"ts-num\">S31609<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316L<\/td><td class=\"ts-num\">S31603<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">316LN<\/td><td class=\"ts-num\">S31653<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo; 0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">316N<\/td><td class=\"ts-num\">S31651<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">10.0-14.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.0-3.0 Mo; 0.10-0.16 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">317<\/td><td class=\"ts-num\">S31700<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">11.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-4.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">317L<\/td><td class=\"ts-num\">S31703<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-20.0<\/td><td class=\"ts-num\">11.0-15.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-4.0 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">321<\/td><td class=\"ts-num\">S32100<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">5 \u00d7 %C min Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">321H<\/td><td class=\"ts-num\">S32109<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-12.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">5 \u00d7 %C min Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">330<\/td><td class=\"ts-num\">N08330<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">0.75-1.5<\/td><td class=\"ts-num\">17.0-20.0<\/td><td class=\"ts-num\">34.0-37.0<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">347<\/td><td class=\"ts-num\">S34700<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">10 \u00d7 %C min Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">347H<\/td><td class=\"ts-num\">S34709<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">8 \u00d7 %C min – 1.0 max Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">348<\/td><td class=\"ts-num\">S34800<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.2 Co; 10 \u00d7 %C min Nb; 0.10 Ta<\/td><\/tr>\n<tr><td class=\"ts-grade\">348H<\/td><td class=\"ts-num\">S34809<\/td><td class=\"ts-num\">0.04-0.10<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">9.0-13.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.2 Co; 8 \u00d7 %C min – 1.0 max Nb; 0.10 Ta<\/td><\/tr>\n<tr><td class=\"ts-grade\">384<\/td><td class=\"ts-num\">S38400<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">2.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">15.0-17.0<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Ferritic types<\/td><\/tr>\n<tr><td class=\"ts-grade\">405<\/td><td class=\"ts-num\">S40500<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">11.5-14.5<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.10-0.30 Al<\/td><\/tr>\n<tr><td class=\"ts-grade\">409<\/td><td class=\"ts-num\">S40900<\/td><td class=\"ts-num\">0.08<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">10.5-11.75<\/td><td class=\"ts-num\">0.50<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num\">0.045<\/td><td class=\"ts-num ts-desc\">6 \u00d7 %C min – 0.75 max Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">429<\/td><td class=\"ts-num\">S42900<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">14.0-16.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">430<\/td><td class=\"ts-num\">S43000<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">430F<\/td><td class=\"ts-num\">S43020<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">430FSe<\/td><td class=\"ts-num\">S43023<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num ts-desc\">0.15 min Se<\/td><\/tr>\n<tr><td class=\"ts-grade\">434<\/td><td class=\"ts-num\">S43400<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75-1.25 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">436<\/td><td class=\"ts-num\">S43600<\/td><td class=\"ts-num\">0.12<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75-1.25 Mo; 5 \u00d7 %C min – 0.70 max Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">439<\/td><td class=\"ts-num\">S43035<\/td><td class=\"ts-num\">0.07<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.0-19.0<\/td><td class=\"ts-num\">0.50<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.15 Al; 12 \u00d7 %C min – 1.10 Ti<\/td><\/tr>\n<tr><td class=\"ts-grade\">442<\/td><td class=\"ts-num\">S44200<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">18.0-23.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">444<\/td><td class=\"ts-num\">S44400<\/td><td class=\"ts-num\">0.025<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">17.5-19.5<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">1.75-2.50 Mo; 0.025 N; 0.2 + 4 (%C + %N) min – 0.8 max (Ti + Nb)<\/td><\/tr>\n<tr><td class=\"ts-grade\">446<\/td><td class=\"ts-num\">S44600<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.50<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">23.0-27.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.25 N<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Duplex (ferritic-austenitic) type<\/td><\/tr>\n<tr><td class=\"ts-grade\">329<\/td><td class=\"ts-num\">S32900<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.75<\/td><td class=\"ts-num\">23.0-28.0<\/td><td class=\"ts-num\">2.50-5.00<\/td><td class=\"ts-num\">0.040<\/td><td class=\"ts-num\">0.030<\/td><td class=\"ts-num ts-desc\">1.00-2.00 Mo<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Martensitic types<\/td><\/tr>\n<tr><td class=\"ts-grade\">403<\/td><td class=\"ts-num\">S40300<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.50<\/td><td class=\"ts-num\">11.5-13.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">410<\/td><td class=\"ts-num\">S41000<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">11.5-13.5<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">414<\/td><td class=\"ts-num\">S41400<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">11.5-13.5<\/td><td class=\"ts-num\">1.25-2.50<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">416<\/td><td class=\"ts-num\">S41600<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">416Se<\/td><td class=\"ts-num\">S41623<\/td><td class=\"ts-num\">0.15<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num ts-desc\">0.15 min Se<\/td><\/tr>\n<tr><td class=\"ts-grade\">420<\/td><td class=\"ts-num\">S42000<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">420F<\/td><td class=\"ts-num\">S42020<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num\">1.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">12.0-14.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.06<\/td><td class=\"ts-num\">0.15 min<\/td><td class=\"ts-num ts-desc\">0.6 Mo <span class=\"ts-sup\">(b)<\/span><\/td><\/tr>\n<tr><td class=\"ts-grade\">422<\/td><td class=\"ts-num\">S42200<\/td><td class=\"ts-num\">0.20-0.25<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">0.75<\/td><td class=\"ts-num\">11.5-13.5<\/td><td class=\"ts-num\">0.5-1.0<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75-1.25 Mo; 0.75-1.25 W; 0.15-0.3 V<\/td><\/tr>\n<tr><td class=\"ts-grade\">431<\/td><td class=\"ts-num\">S43100<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">15.0-17.0<\/td><td class=\"ts-num\">1.25-2.50<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">—<\/td><\/tr>\n<tr><td class=\"ts-grade\">440A<\/td><td class=\"ts-num\">S44002<\/td><td class=\"ts-num\">0.60-0.75<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">440B<\/td><td class=\"ts-num\">S44003<\/td><td class=\"ts-num\">0.75-0.95<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75 Mo<\/td><\/tr>\n<tr><td class=\"ts-grade\">440C<\/td><td class=\"ts-num\">S44004<\/td><td class=\"ts-num\">0.95-1.20<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">—<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">0.75 Mo<\/td><\/tr>\n<tr class=\"ts-group\"><td colspan=\"10\">Precipitation-hardening types<\/td><\/tr>\n<tr><td class=\"ts-grade\">PH 13-8 Mo<\/td><td class=\"ts-num\">S13800<\/td><td class=\"ts-num\">0.05<\/td><td class=\"ts-num\">0.20<\/td><td class=\"ts-num\">0.10<\/td><td class=\"ts-num\">12.25-13.25<\/td><td class=\"ts-num\">7.5-8.5<\/td><td class=\"ts-num\">0.01<\/td><td class=\"ts-num\">0.008<\/td><td class=\"ts-num ts-desc\">2.0-2.5 Mo; 0.90-1.35 Al; 0.01 N<\/td><\/tr>\n<tr><td class=\"ts-grade\">15-5 PH<\/td><td class=\"ts-num\">S15500<\/td><td class=\"ts-num\">0.07<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">14.0-15.5<\/td><td class=\"ts-num\">3.5-5.5<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">2.5-4.5 Cu; 0.15-0.45 Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">17-4 PH<\/td><td class=\"ts-num\">S17400<\/td><td class=\"ts-num\">0.07<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">15.5-17.5<\/td><td class=\"ts-num\">3.0-5.0<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.03<\/td><td class=\"ts-num ts-desc\">3.0-5.0 Cu; 0.15-0.45 Nb<\/td><\/tr>\n<tr><td class=\"ts-grade\">17-7 PH<\/td><td class=\"ts-num\">S17700<\/td><td class=\"ts-num\">0.09<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">1.00<\/td><td class=\"ts-num\">16.0-18.0<\/td><td class=\"ts-num\">6.5-7.75<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num\">0.04<\/td><td class=\"ts-num ts-desc\">0.75-1.5 Al<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <ul class=\"ts-notes-list\">\n<li><sup>(a)<\/sup> Single values are maximum values unless otherwise indicated (a value followed by “min” is a minimum).<\/li>\n<li><sup>(b)<\/sup> Optional.<\/li>\n <\/ul>\n <div class=\"ts-disclaimer\">\n <h3>Table notes<\/h3>\n <p>The “Other” column gives additional specified elements — nitrogen, copper, titanium, niobium, aluminum, molybdenum, selenium and tungsten — as printed in the source.<\/p>\n <p>Type 420 carbon is a minimum (0.15% min); actual carbon varies by heat, so check the mill certificate where hardness matters. UNS S30430 appears in this table under its AISI designation 302Cu; some references list the same composition as 304Cu.<\/p>\n <p>Composition limits are heat analysis values from the source. Product analysis tolerances may apply — confirm the governing specification with your supplier before ordering.<\/p>\n <\/div>\n <div class=\"ts-rel\">\n <h3>Related reference pages<\/h3>\n <p><a href=\"\/stainless-steels\/\">Stainless steels overview<\/a> · <a href=\"\/420-stainless-steel\/\">420 stainless steel<\/a> · <a href=\"\/420-stainless-steel-heat-treatment\/\">420 stainless steel heat treatment<\/a> · <a href=\"\/440c-stainless-steel\/\">440C stainless steel<\/a> · <a href=\"\/440c-stainless-steel-properties\/\">440C stainless steel properties<\/a> · <a href=\"\/440c-stainless-steel-heat-treatment\/\">440C stainless steel heat treatment<\/a> · <a href=\"\/4cr13-stainless-steel\/\">4Cr13 stainless steel<\/a> · <a href=\"\/9cr18mo-stainless-steel\/\">9Cr18Mo stainless steel<\/a> · <a href=\"\/tool-steel-composition-chart\/\">Tool steel composition chart<\/a> · <a href=\"\/95cr18-stainless-steel-3\/\">95Cr18 (9Cr18) stainless steel<\/a> · <a href=\"\/stainless-steel-physical-properties-chart\/\">Stainless steel physical properties chart<\/a><\/p>\n <\/div>\n <p class=\"ts-source\">Source: ASM Handbook, Volume 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys, Table 2 “Compositions of standard stainless steels” (10th ed.). Reference data for comparison — verify the applicable standard before ordering.<\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>Stainless Steel Composition Chart (AISI 201-384, 403-440C, PH Grades) | Aobo Steel Stainless Steel Reference Data Stainless Steel Composition Chart Chemical composition limits for the standard AISI stainless steel types — the austenitic, ferritic, duplex, martensitic and precipitation-hardening families. Ranges are in weight percent; a single value is a maximum unless marked “min”. wt % […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-18236","page","type-page","status-publish","hentry"],"yoast_head":"\n<title>Stainless Steel Composition Chart for All AISI Grades - 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