Dados de referência para aço ferramenta
Tool Steel Composition Chart
Chemical composition limits for the principal AISI tool steel types — the M, T, H, A, D, O, S, L, P and W groups. Values are cast or heat analysis ranges in weight percent; a single value is a maximum unless followed by “min”.
wt % all values 13.00-15.00 from–to range 0,30 máximo maximum limit — not specified (a)–(e) footnote
| AISI | ONU | C | Mn | Si | Cr | Ni | Mo | W | V | Co |
|---|---|---|---|---|---|---|---|---|---|---|
| Molybdenum high-speed steels (M series) | ||||||||||
| M1 | T11301 | 0.78-0.88 | 0.15-0.40 | 0.20-0.50 | 3.50-4.00 | 0,30 máximo | 8.20-9.20 | 1.40-2.10 | 1.00-1.25 | — |
| M2 | T11302 | 0.78-0.88; 0.95-1.05 | 0.15-0.40 | 0.20-0.45 | 3.75-4.50 | 0,30 máximo | 4.50-5.50 | 5.50-6.75 | 1.75-2.20 | — |
| M3, classe 1 | T11313 | 1.00-1.10 | 0.15-0.40 | 0.20-0.45 | 3.75-4.50 | 0,30 máximo | 4.75-6.50 | 5.00-6.75 | 2.25-2.75 | — |
| M3, classe 2 | T11323 | 1.15-1.25 | 0.15-0.40 | 0.20-0.45 | 3.75-4.50 | 0,30 máximo | 4.75-6.50 | 5.00-6.75 | 2.75-3.75 | — |
| M4 | T11304 | 1.25-1.40 | 0.15-0.40 | 0.20-0.45 | 3.75-4.75 | 0,30 máximo | 4.25-5.50 | 5.25-6.50 | 3.75-4.50 | — |
| M7 | T11307 | 0.97-1.05 | 0.15-0.40 | 0.20-0.55 | 3.50-4.00 | 0,30 máximo | 8.20-9.20 | 1.40-2.10 | 1.75-2.25 | — |
| M10 | T11310 | 0.84-0.94; 0.95-1.05 | 0.10-0.40 | 0.20-0.45 | 3.75-4.50 | 0,30 máximo | 7.75-8.50 | — | 1.80-2.20 | — |
| M30 | T11330 | 0.75-0.85 | 0.15-0.40 | 0.20-0.45 | 3.50-4.25 | 0,30 máximo | 7.75-9.00 | 1.30-2.30 | 1.00-1.40 | 4.50-5.50 |
| M33 | T11333 | 0.85-0.92 | 0.15-0.40 | 0.15-0.50 | 3.50-4.00 | 0,30 máximo | 9.00-10.00 | 1.30-2.10 | 1.00-1.35 | 7.75-8.75 |
| M34 | T11334 | 0.85-0.92 | 0.15-0.40 | 0.20-0.45 | 3.50-4.00 | 0,30 máximo | 7.75-9.20 | 1.40-2.10 | 1.90-2.30 | 7.75-8.75 |
| M35 | T11335 | 0.82-0.88 | 0.15-0.40 | 0.20-0.45 | 3.75-4.50 | 0,30 máximo | 4.50-5.50 | 5.50-6.75 | 1.75-2.20 | 4.50-5.50 |
| M36 | T11336 | 0.80-0.90 | 0.15-0.40 | 0.20-0.45 | 3.75-4.50 | 0,30 máximo | 4.50-5.50 | 5.50-6.50 | 1.75-2.25 | 7.75-8.75 |
| M41 | T11341 | 1.05-1.15 | 0.20-0.60 | 0.15-0.50 | 3.75-4.50 | 0,30 máximo | 3.25-4.25 | 6.25-7.00 | 1.75-2.25 | 4.75-5.75 |
| M42 | T11342 | 1.05-1.15 | 0.15-0.40 | 0.15-0.65 | 3.50-4.25 | 0,30 máximo | 9.00-10.00 | 1.15-1.85 | 0.95-1.35 | 7.75-8.75 |
| M43 | T11343 | 1.15-1.25 | 0.20-0.40 | 0.15-0.65 | 3.50-4.25 | 0,30 máximo | 7.50-8.50 | 2.25-3.00 | 1.50-1.75 | 7.75-8.75 |
| M44 | T11344 | 1.10-1.20 | 0.20-0.40 | 0.30-0.55 | 4.00-4.75 | 0,30 máximo | 6.00-7.00 | 5.00-5.75 | 1.85-2.20 | 11.00-12.25 |
| M46 | T11346 | 1.22-1.30 | 0.20-0.40 | 0.40-0.65 | 3.70-4.20 | 0,30 máximo | 8.00-8.50 | 1.90-2.20 | 3.00-3.30 | 7.80-8.80 |
| M47 | T11347 | 1.05-1.15 | 0.15-0.40 | 0.20-0.45 | 3.50-4.00 | 0,30 máximo | 9.25-10.00 | 1.30-1.80 | 1.15-1.35 | 4.75-5.25 |
| M48 | T11348 | 1.42-1.52 | 0.15-0.40 | 0.15-0.40 | 3.50-4.00 | 0,30 máximo | 4.75-5.50 | 9.50-10.50 | 2.75-3.25 | 8.00-10.00 |
| M62 | T11362 | 1.25-1.35 | 0.15-0.40 | 0.15-0.40 | 3.50-4.00 | 0,30 máximo | 10.00-11.00 | 5.75-6.50 | 1.80-2.10 | — |
| Tungsten high-speed steels (T series) | ||||||||||
| T1 | T12001 | 0.65-0.80 | 0.10-0.40 | 0.20-0.40 | 3.75-4.50 | 0,30 máximo | — | 17.25-18.75 | 0.90-1.30 | — |
| T2 | T12002 | 0.80-0.90 | 0.20-0.40 | 0.20-0.40 | 3.75-4.50 | 0,30 máximo | 1,00 máximo | 17.50-19.00 | 1.80-2.40 | — |
| T4 | T12004 | 0.70-0.80 | 0.10-0.40 | 0.20-0.40 | 3.75-4.50 | 0,30 máximo | 0.40-1.00 | 17.50-19.00 | 0.80-1.20 | 4.25-5.75 |
| T5 | T12005 | 0.75-0.85 | 0.20-0.40 | 0.20-0.40 | 3.75-5.00 | 0,30 máximo | 0.50-1.25 | 17.50-19.00 | 1.80-2.40 | 7.00-9.50 |
| T6 | T12006 | 0.75-0.85 | 0.20-0.40 | 0.20-0.40 | 4.00-4.75 | 0,30 máximo | 0.40-1.00 | 18.50-21.00 | 1.50-2.10 | 11.00-13.00 |
| T8 | T12008 | 0.75-0.85 | 0.20-0.40 | 0.20-0.40 | 3.75-4.50 | 0,30 máximo | 0.40-1.00 | 13.25-14.75 | 1.80-2.40 | 4.25-5.75 |
| T15 | T12015 | 1.50-1.60 | 0.15-0.40 | 0.15-0.40 | 3.75-5.00 | 0,30 máximo | 1,00 máximo | 11.75-13.00 | 4.50-5.25 | 4.75-5.25 |
| Aços rápidos intermediários | ||||||||||
| M50 | T11350 | 0.78-0.88 | 0.15-0.45 | 0.20-0.60 | 3.75-4.50 | 0,30 máximo | 3.90-4.75 | — | 0.80-1.25 | — |
| M52 | T11352 | 0.85-0.95 | 0.15-0.45 | 0.20-0.60 | 3.50-4.30 | 0,30 máximo | 4.00-4.90 | 0.75-1.50 | 1.65-2.25 | — |
| Chromium hot-work steels (H10-H19) | ||||||||||
| H10 | T20810 | 0.35-0.45 | 0.25-0.70 | 0.80-1.20 | 3.00-3.75 | 0,30 máximo | 2.00-3.00 | — | 0.25-0.75 | — |
| H11 | T20811 | 0.33-0.43 | 0.20-0.50 | 0.80-1.20 | 4.75-5.50 | 0,30 máximo | 1.10-1.60 | — | 0.30-0.60 | — |
| H12 | T20812 | 0.30-0.40 | 0.20-0.50 | 0.80-1.20 | 4.75-5.50 | 0,30 máximo | 1.25-1.75 | 1.00-1.70 | 0.50 max | — |
| H13 | T20813 | 0.32-0.45 | 0.20-0.50 | 0.80-1.20 | 4.75-5.50 | 0,30 máximo | 1.10-1.75 | — | 0.80-1.20 | — |
| H14 | T20814 | 0.35-0.45 | 0.20-0.50 | 0.80-1.20 | 4.75-5.50 | 0,30 máximo | — | 4.00-5.25 | — | — |
| H19 | T20819 | 0.32-0.45 | 0.20-0.50 | 0.20-0.50 | 4.00-4.75 | 0,30 máximo | 0.30-0.55 | 3.75-4.50 | 1.75-2.20 | 4.00-4.50 |
| Tungsten hot-work steels (H21-H26) | ||||||||||
| H21 | T20821 | 0.26-0.36 | 0.15-0.40 | 0.15-0.50 | 3.00-3.75 | 0,30 máximo | — | 8.50-10.00 | 0.30-0.60 | — |
| H22 | T20822 | 0.30-0.40 | 0.15-0.40 | 0.15-0.40 | 1.75-3.75 | 0,30 máximo | — | 10.00-11.75 | 0.25-0.50 | — |
| H23 | T20823 | 0.25-0.35 | 0.15-0.40 | 0.15-0.60 | 11.00-12.75 | 0,30 máximo | — | 11.00-12.75 | 0.75-1.25 | — |
| H24 | T20824 | 0.42-0.53 | 0.15-0.40 | 0.15-0.40 | 2.50-3.50 | 0,30 máximo | — | 14.00-16.00 | 0.40-0.60 | — |
| H25 | T20825 | 0.22-0.32 | 0.15-0.40 | 0.15-0.40 | 3.75-4.50 | 0,30 máximo | — | 14.00-16.00 | 0.40-0.60 | — |
| H26 | T20826 | 0.45-0.55 (b) | 0.15-0.40 | 0.15-0.40 | 3.75-4.50 | 0,30 máximo | — | 17.25-19.00 | 0.75-1.25 | — |
| Aços para trabalho a quente com molibdênio | ||||||||||
| H42 | T20842 | 0.55-0.70 (b) | 0.15-0.40 | — | 3.75-4.50 | 0,30 máximo | 4.50-5.50 | 5.50-6.75 | 1.75-2.20 | — |
| Air-hardening cold-work steels (A series) | ||||||||||
| A2 | T30102 | 0.95-1.05 | 1,00 máximo | 0.50 max | 4.75-5.50 | 0,30 máximo | 0.90-1.40 | — | 0.15-0.50 | — |
| A3 | T30103 | 1.20-1.30 | 0.40-0.60 | 0.50 max | 4.75-5.50 | 0,30 máximo | 0.90-1.40 | — | 0.80-1.40 | — |
| A4 | T30104 | 0.95-1.05 | 1.80-2.20 | 0.50 max | 0.90-2.20 | 0,30 máximo | 0.90-1.40 | — | — | — |
| A6 | T30106 | 0.65-0.75 | 1.80-2.50 | 0.50 max | 0.90-1.20 | 0,30 máximo | 0.90-1.40 | — | — | — |
| A7 | T30107 | 2.00-2.85 | 0.80 max | 0.50 max | 5.00-5.75 | 0,30 máximo | 0.90-1.40 | 0.50-1.50 | 3.90-5.15 | — |
| A8 | T30108 | 0.50-0.60 | 0.50 max | 0.75-1.10 | 4.75-5.50 | 0,30 máximo | 1.15-1.65 | 1.00-1.50 | — | — |
| A9 | T30109 | 0.45-0.55 | 0.50 max | 0.95-1.15 | 4.75-5.50 | 1.25-1.75 | 1.30-1.80 | — | 0.80-1.40 | — |
| A10 | T30110 | 1.25-1.50 (c) | 1.60-2.10 | 1.00-1.50 | — | 1.55-2.05 | 1.25-1.75 | — | — | — |
| High-carbon, high-chromium cold-work steels (D series) | ||||||||||
| D2 | T30402 | 1.40-1.60 | 0,60 máx. | 0,60 máx. | 11.00-13.00 | 0,30 máximo | 0.70-1.20 | — | 1,10 máx. | — |
| D3 | T30403 | 2.00-2.35 | 0,60 máx. | 0,60 máx. | 11.00-13.50 | 0,30 máximo | — | 1,00 máximo | 1,00 máximo | — |
| D4 | T30404 | 2.05-2.40 | 0,60 máx. | 0,60 máx. | 11.00-13.00 | 0,30 máximo | 0.70-1.20 | — | 1,00 máximo | — |
| D5 | T30405 | 1.40-1.60 | 0,60 máx. | 0,60 máx. | 11.00-13.00 | 0,30 máximo | 0.70-1.20 | — | 1,00 máximo | 2.50-3.50 |
| D7 | T30407 | 2.15-2.50 | 0,60 máx. | 0,60 máx. | 11.50-13.50 | 0,30 máximo | 0.70-1.20 | — | 3.80-4.40 | — |
| Oil-hardening cold-work steels (O series) | ||||||||||
| O1 | T31501 | 0.85-1.00 | 1.00-1.40 | 0.50 max | 0.40-0.60 | 0,30 máximo | — | 0.40-0.60 | 0,30 máximo | — |
| O2 | T31502 | 0.85-0.95 | 1.40-1.80 | 0.50 max | 0.50 max | 0,30 máximo | 0,30 máximo | — | 0,30 máximo | — |
| O6 | T31506 | 1.25-1.55 (c) | 0.30-1.10 | 0.55-1.50 | 0,30 máximo | 0,30 máximo | 0.20-0.30 | — | — | — |
| O7 | T31507 | 1.10-1.30 | 1,00 máximo | 0,60 máx. | 0.35-0.85 | 0,30 máximo | 0,30 máximo | 1.00-2.00 | 0,40 máx. | — |
| Shock-resisting steels (S series) | ||||||||||
| S1 | T41901 | 0.40-0.55 | 0.10-0.40 | 0.15-1.20 | 1.00-1.80 | 0,30 máximo | 0.50 max | 1.50-3.00 | 0.15-0.30 | — |
| S2 | T41902 | 0.40-0.55 | 0.30-0.50 | 0.90-1.20 | — | 0,30 máximo | 0.30-0.60 | — | 0.50 max | — |
| S5 | T41905 | 0.50-0.65 | 0.60-1.00 | 1.75-2.25 | 0.50 max | — | 0.20-1.35 | — | 0.35 max | — |
| S6 | T41906 | 0.40-0.50 | 1.20-1.50 | 2.00-2.50 | 1.20-1.50 | — | 0.30-0.50 | — | 0.20-0.40 | — |
| S7 | T41907 | 0.45-0.55 | 0.20-0.90 | 0.20-1.00 | 3.00-3.50 | — | 1.30-1.80 | — | 0.20-0.30 (d) | — |
| Low-alloy special-purpose steels (L series) | ||||||||||
| L2 | T61202 | 0.45-1.00 (b) | 0.10-0.90 | 0.50 max | 0.70-1.20 | — | 0,25 máx. | — | 0.10-0.30 | — |
| L6 | T61206 | 0.65-0.75 | 0.25-0.80 | 0.50 max | 0.60-1.20 | 1.25-2.00 | 0.50 max | — | 0.20-0.30 (d) | — |
| Low-carbon mold steels (P series) | ||||||||||
| P2 | T51602 | 0.10 max | 0.10-0.40 | 0.10-0.40 | 0.75-1.25 | 0.10-0.50 | 0.15-0.40 | — | — | — |
| P3 | T51603 | 0.10 max | 0.20-0.60 | 0,40 máx. | 0.40-0.75 | 1.00-1.50 | — | — | — | — |
| P4 | T51604 | 0.12 max | 0.20-0.60 | 0.10-0.40 | 4.00-5.25 | — | 0.40-1.00 | — | — | — |
| P5 | T51605 | 0.10 max | 0.20-0.60 | 0,40 máx. | 2.00-2.50 | 0.35 max | — | — | — | — |
| P6 | T51606 | 0.05-0.15 | 0.35-0.70 | 0.10-0.40 | 1.25-1.75 | 3.25-3.75 | — | — | — | — |
| P20 | T51620 | 0.28-0.40 | 0.60-1.00 | 0.20-0.80 | 1.40-2.00 | — | 0.30-0.55 | — | — | — |
| P21 | T51621 | 0.18-0.22 | 0.20-0.40 | 0.20-0.40 | 0.50 max | 3.90-4.25 | — | — | 0.15-0.25 | — |
| Water-hardening tool steels (W series) | ||||||||||
| W1 | T72301 | 0.70-1.50 (e) | 0.10-0.40 | 0.10-0.40 | 0,15 máx. | 0.20 max | 0.10 max | 0,15 máx. | 0.10 max | — |
| W2 | T72302 | 0.85-1.50 (e) | 0.10-0.40 | 0.10-0.40 | 0,15 máx. | 0.20 max | 0.10 max | 0,15 máx. | 0.15-0.35 | — |
| W5 | T72305 | 1.05-1.15 | 0.10-0.40 | 0.10-0.40 | 0.40-0.60 | 0.20 max | 0.10 max | 0,15 máx. | 0.10 max | — |
- (um) All steels except group W contain 0.25% max Cu, 0.03% max P and 0.03% max S; group W steels contain 0.20% max Cu, 0.025% max P and 0.025% max S. Where specified, sulfur may be increased to 0.06–0.15% to improve machinability of group A, D, H, M and T steels.
- (b) Available in several carbon ranges.
- (c) Contains free graphite in the microstructure.
- (d) Optional.
- (e) Specified carbon ranges are designated by suffix numbers.
Notas de mesa
P21 additionally contains 1.05–1.25% Al (aluminum), specified for resistance to heat checking; Al is not shown as a separate column above.
Two values in the source table were printed with a missing decimal point and are corrected here: M10 chromium reads “3.75-450” in the source and is given as 3.75–4.50; A9 molybdenum reads “1.30-180” and is given as 1.30–1.80.
Composition limits are heat analysis values from the source. Product analysis tolerances may apply — confirm the governing standard (ASTM A681, A600 or A686, or the applicable national standard) with your supplier before ordering.
Grade-level limits for individual steels, such as the H13 chemical composition range, are listed on the grade pages.
Páginas de referência relacionadas
Aço para ferramentas D2 · Aço para ferramentas H13 · Aço para ferramentas O1 · Tool steel equivalent grades · Tabela de propriedades do aço ferramenta · Tool steel heat treatment guide · Annealing & normalizing temperature chart · Processing & service characteristics · How to select tool steels · Tool steels overview · Tabela de composição do aço inoxidável
Source: ASM Handbook, Volume 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys, Table 1 “Composition limits of principal types of tool steels” (10th ed.). Reference data for comparison — verify the applicable standard before ordering.