{"id":18236,"date":"2026-09-13T15:16:27","date_gmt":"2026-09-13T07:16:27","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=18236"},"modified":"2026-10-26T07:50:48","modified_gmt":"2026-10-25T23:50:48","slug":"stainless-steel-composition-chart","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/stainless-steel-composition-chart\/","title":{"rendered":"Tabela de Composi\u00e7\u00e3o do A\u00e7o Inoxid\u00e1vel para Todos os Graus AISI"},"content":{"rendered":"

tabela de composi\u00e7\u00e3o do a\u00e7o inoxid\u00e1vel<\/h1>\n\n\n\n

Limites de composi\u00e7\u00e3o qu\u00edmica para os tipos padr\u00e3o de a\u00e7o inoxid\u00e1vel AISI — as fam\u00edlias austen\u00edtica, ferr\u00edtica, duplex, martens\u00edtica e endurec\u00edvel por precipita\u00e7\u00e3o. As faixas est\u00e3o em porcentagem em peso; um valor \u00fanico \u00e9 um m\u00e1ximo, a menos que marcado como “min”.<\/p>\n\n\n\n

% em peso<\/strong> todos os valores<\/p>\n\n\n\n

16.0-18.0<\/strong> faixa de–at\u00e9<\/p>\n\n\n\n

0,15 min<\/strong> teor m\u00ednimo<\/p>\n\n\n\n

0.045<\/strong> limite m\u00e1ximo<\/p>\n\n\n\n

—<\/strong> n\u00e3o especificado<\/p>\n\n\n\n

(a)–(b)<\/strong> nota de rodap\u00e9<\/p>\n\n\n\n

Tipo<\/th>UNS<\/th>C<\/th>Mn<\/th>Si<\/th>Cr<\/th>Ni<\/th>P<\/th>S<\/th>Outro<\/th><\/tr><\/thead>
Tipos austen\u00edticos<\/td><\/tr>
201<\/td>S20100<\/td>0.15<\/td>5.5-7.5<\/td>1.00<\/td>16.0-18.0<\/td>3.5-5.5<\/td>0.06<\/td>0.03<\/td>0.25 N<\/td><\/tr>
202<\/td>S20200<\/td>0.15<\/td>7.5-10.0<\/td>1.00<\/td>17.0-19.0<\/td>4.0-6.0<\/td>0.06<\/td>0.03<\/td>0.25 N<\/td><\/tr>
205<\/td>S20500<\/td>0.12-0.25<\/td>14.0-15.5<\/td>1.00<\/td>16.5-18.0<\/td>1.0-1.75<\/td>0.06<\/td>0.03<\/td>0.32-0.40 N<\/td><\/tr>
301<\/td>S30100<\/td>0.15<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>6.0-8.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
302<\/td>S30200<\/td>0.15<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>8.0-10.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
302B<\/td>S30215<\/td>0.15<\/td>2.00<\/td>2.0-3.0<\/td>17.0-19.0<\/td>8.0-10.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
303<\/td>S30300<\/td>0.15<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>8.0-10.0<\/td>0.20<\/td>0,15 min<\/td>0.6 Mo (b)<\/sup><\/td><\/tr>
303Se<\/td>S30323<\/td>0.15<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>8.0-10.0<\/td>0.20<\/td>0.06<\/td>0,15 min Se<\/td><\/tr>
304<\/td>S30400<\/td>0.08<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>8.0-10.5<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
304H<\/td>S30409<\/td>0.04-0.10<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>8.0-10.5<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
304L<\/td>S30403<\/td>0.03<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>8.0-12.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
304LN<\/td>S30453<\/td>0.03<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>8.0-12.0<\/td>0.045<\/td>0.03<\/td>0.10-0.16 N<\/td><\/tr>
302Cu<\/td>S30430<\/td>0.08<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>8.0-10.0<\/td>0.045<\/td>0.03<\/td>3.0-4.0 Cu<\/td><\/tr>
304N<\/td>S30451<\/td>0.08<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>8.0-10.5<\/td>0.045<\/td>0.03<\/td>0.10-0.16 N<\/td><\/tr>
305<\/td>S30500<\/td>0.12<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>10.5-13.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
308<\/td>S30800<\/td>0.08<\/td>2.00<\/td>1.00<\/td>19.0-21.0<\/td>10.0-12.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
309<\/td>S30900<\/td>0.20<\/td>2.00<\/td>1.00<\/td>22.0-24.0<\/td>12.0-15.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
309S<\/td>S30908<\/td>0.08<\/td>2.00<\/td>1.00<\/td>22.0-24.0<\/td>12.0-15.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
310<\/td>S31000<\/td>0.25<\/td>2.00<\/td>1.50<\/td>24.0-26.0<\/td>19.0-22.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
310S<\/td>S31008<\/td>0.08<\/td>2.00<\/td>1.50<\/td>24.0-26.0<\/td>19.0-22.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
314<\/td>S31400<\/td>0.25<\/td>2.00<\/td>1.5-3.0<\/td>23.0-26.0<\/td>19.0-22.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
316<\/td>S31600<\/td>0.08<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>10.0-14.0<\/td>0.045<\/td>0.03<\/td>2.0-3.0 Mo<\/td><\/tr>
316F<\/td>S31620<\/td>0.08<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>10.0-14.0<\/td>0.20<\/td>0,10 min<\/td>1.75-2.5 Mo<\/td><\/tr>
316H<\/td>S31609<\/td>0.04-0.10<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>10.0-14.0<\/td>0.045<\/td>0.03<\/td>2.0-3.0 Mo<\/td><\/tr>
316L<\/td>S31603<\/td>0.03<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>10.0-14.0<\/td>0.045<\/td>0.03<\/td>2.0-3.0 Mo<\/td><\/tr>
316LN<\/td>S31653<\/td>0.03<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>10.0-14.0<\/td>0.045<\/td>0.03<\/td>2.0-3.0 Mo; 0.10-0.16 N<\/td><\/tr>
316N<\/td>S31651<\/td>0.08<\/td>2.00<\/td>1.00<\/td>16.0-18.0<\/td>10.0-14.0<\/td>0.045<\/td>0.03<\/td>2.0-3.0 Mo; 0.10-0.16 N<\/td><\/tr>
317<\/td>S31700<\/td>0.08<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>11.0-15.0<\/td>0.045<\/td>0.03<\/td>3.0-4.0 Mo<\/td><\/tr>
317L<\/td>S31703<\/td>0.03<\/td>2.00<\/td>1.00<\/td>18.0-20.0<\/td>11.0-15.0<\/td>0.045<\/td>0.03<\/td>3.0-4.0 Mo<\/td><\/tr>
321<\/td>S32100<\/td>0.08<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>9.0-12.0<\/td>0.045<\/td>0.03<\/td>5 \u00d7 %C min Ti<\/td><\/tr>
321H<\/td>S32109<\/td>0.04-0.10<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>9.0-12.0<\/td>0.045<\/td>0.03<\/td>5 \u00d7 %C min Ti<\/td><\/tr>
330<\/td>N08330<\/td>0.08<\/td>2.00<\/td>0.75-1.5<\/td>17.0-20.0<\/td>34.0-37.0<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
347<\/td>S34700<\/td>0.08<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>9.0-13.0<\/td>0.045<\/td>0.03<\/td>10 \u00d7 %C min Nb<\/td><\/tr>
347H<\/td>S34709<\/td>0.04-0.10<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>9.0-13.0<\/td>0.045<\/td>0.03<\/td>8 \u00d7 %C min – 1,0 m\u00e1x Nb<\/td><\/tr>
348<\/td>S34800<\/td>0.08<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>9.0-13.0<\/td>0.045<\/td>0.03<\/td>0,2 Co; 10 \u00d7 %C min Nb; 0,10 Ta<\/td><\/tr>
348H<\/td>S34809<\/td>0.04-0.10<\/td>2.00<\/td>1.00<\/td>17.0-19.0<\/td>9.0-13.0<\/td>0.045<\/td>0.03<\/td>0,2 Co; 8 \u00d7 %C min – 1,0 m\u00e1x Nb; 0,10 Ta<\/td><\/tr>
384<\/td>S38400<\/td>0.08<\/td>2.00<\/td>1.00<\/td>15.0-17.0<\/td>17.0-19.0<\/td>0.045<\/td>0.03<\/td>—<\/td><\/tr>
Tipos ferr\u00edticos<\/td><\/tr>
405<\/td>S40500<\/td>0.08<\/td>1.00<\/td>1.00<\/td>11.5-14.5<\/td>—<\/td>0.04<\/td>0.03<\/td>0.10-0.30 Al<\/td><\/tr>
409<\/td>S40900<\/td>0.08<\/td>1.00<\/td>1.00<\/td>10.5-11.75<\/td>0.50<\/td>0.045<\/td>0.045<\/td>6 \u00d7 %C min – 0,75 m\u00e1x Ti<\/td><\/tr>
429<\/td>S42900<\/td>0.12<\/td>1.00<\/td>1.00<\/td>14.0-16.0<\/td>—<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
430<\/td>S43000<\/td>0.12<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
430F<\/td>S43020<\/td>0.12<\/td>1.25<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.06<\/td>0,15 min<\/td>0.6 Mo (b)<\/sup><\/td><\/tr>
430FSe<\/td>S43023<\/td>0.12<\/td>1.25<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.06<\/td>0.06<\/td>0,15 min Se<\/td><\/tr>
434<\/td>S43400<\/td>0.12<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.04<\/td>0.03<\/td>0.75-1.25 Mo<\/td><\/tr>
436<\/td>S43600<\/td>0.12<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.04<\/td>0.03<\/td>0,75-1,25 Mo; 5 \u00d7 %C min – 0,70 m\u00e1x Nb<\/td><\/tr>
439<\/td>S43035<\/td>0.07<\/td>1.00<\/td>1.00<\/td>17.0-19.0<\/td>0.50<\/td>0.04<\/td>0.03<\/td>0,15 Al; 12 \u00d7 %C min – 1,10 Ti<\/td><\/tr>
442<\/td>S44200<\/td>0.20<\/td>1.00<\/td>1.00<\/td>18.0-23.0<\/td>—<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
444<\/td>S44400<\/td>0.025<\/td>1.00<\/td>1.00<\/td>17.5-19.5<\/td>1.00<\/td>0.04<\/td>0.03<\/td>1,75-2,50 Mo; 0,025 N; 0,2 + 4 (%C + %N) min – 0,8 m\u00e1x (Ti + Nb)<\/td><\/tr>
446<\/td>S44600<\/td>0.20<\/td>1.50<\/td>1.00<\/td>23.0-27.0<\/td>—<\/td>0.04<\/td>0.03<\/td>0.25 N<\/td><\/tr>
Tipo duplex (ferr\u00edtico-austen\u00edtico)<\/td><\/tr>
329<\/td>S32900<\/td>0.20<\/td>1.00<\/td>0.75<\/td>23.0-28.0<\/td>2.50-5.00<\/td>0.040<\/td>0.030<\/td>1.00-2.00 Mo<\/td><\/tr>
Tipos martens\u00edticos<\/td><\/tr>
403<\/td>S40300<\/td>0.15<\/td>1.00<\/td>0.50<\/td>11.5-13.0<\/td>—<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
410<\/a><\/td>S41000<\/td>0.15<\/td>1.00<\/td>1.00<\/td>11.5-13.5<\/td>—<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
414<\/td>S41400<\/td>0.15<\/td>1.00<\/td>1.00<\/td>11.5-13.5<\/td>1.25-2.50<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
416<\/a><\/td>S41600<\/td>0.15<\/td>1.25<\/td>1.00<\/td>12.0-14.0<\/td>—<\/td>0.06<\/td>0,15 min<\/td>0.6 Mo (b)<\/sup><\/td><\/tr>
416Se<\/td>S41623<\/td>0.15<\/td>1.25<\/td>1.00<\/td>12.0-14.0<\/td>—<\/td>0.06<\/td>0.06<\/td>0,15 min Se<\/td><\/tr>
420<\/td>S42000<\/td>0,15 min<\/td>1.00<\/td>1.00<\/td>12.0-14.0<\/td>—<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
420F<\/td>S42020<\/td>0,15 min<\/td>1.25<\/td>1.00<\/td>12.0-14.0<\/td>—<\/td>0.06<\/td>0,15 min<\/td>0.6 Mo (b)<\/sup><\/td><\/tr>
422<\/td>S42200<\/td>0.20-0.25<\/td>1.00<\/td>0.75<\/td>11.5-13.5<\/td>0.5-1.0<\/td>0.04<\/td>0.03<\/td>0.75-1.25 Mo; 0.75-1.25 W; 0.15-0.3 V<\/td><\/tr>
431<\/td>S43100<\/td>0.20<\/td>1.00<\/td>1.00<\/td>15.0-17.0<\/td>1.25-2.50<\/td>0.04<\/td>0.03<\/td>—<\/td><\/tr>
440A<\/a><\/td>S44002<\/td>0.60-0.75<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.04<\/td>0.03<\/td>0.75 Mo<\/td><\/tr>
440B<\/a><\/td>S44003<\/td>0.75-0.95<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.04<\/td>0.03<\/td>0.75 Mo<\/td><\/tr>
440C<\/td>S44004<\/td>0.95-1.20<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>—<\/td>0.04<\/td>0.03<\/td>0.75 Mo<\/td><\/tr>
Tipos endurec\u00edveis por precipita\u00e7\u00e3o<\/td><\/tr>
PH 13-8 Mo<\/td>S13800<\/td>0.05<\/td>0.20<\/td>0.10<\/td>12.25-13.25<\/td>7.5-8.5<\/td>0.01<\/td>0.008<\/td>2.0-2.5 Mo; 0.90-1.35 Al; 0.01 N<\/td><\/tr>
15-5 PH<\/td>S15500<\/td>0.07<\/td>1.00<\/td>1.00<\/td>14.0-15.5<\/td>3.5-5.5<\/td>0.04<\/td>0.03<\/td>2.5-4.5 Cu; 0.15-0.45 Nb<\/td><\/tr>
17-4 PH<\/td>S17400<\/td>0.07<\/td>1.00<\/td>1.00<\/td>15.5-17.5<\/td>3.0-5.0<\/td>0.04<\/td>0.03<\/td>3.0-5.0 Cu; 0.15-0.45 Nb<\/td><\/tr>
17-7 PH<\/td>S17700<\/td>0.09<\/td>1.00<\/td>1.00<\/td>16.0-18.0<\/td>6.5-7.75<\/td>0.04<\/td>0.04<\/td>0.75-1.5 Al<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n