H12 1.2602 Hot Work Die Tool Steel
GB: *3Cr5WMoSiV
AISI: H12
DIN: 1.2602
JIS: SKD62
Erasteel: -
Bohler: W321/W320
Hitachi: -
H12 steel is a type of hot-work tool steel with high chrome and vanadium content. It is known for its excellent toughness, wear resistance, and thermal conductivity, making it suitable for use in high-temperature applications such as forging, aluminum die-casting, and extrusion. H12 steel is also resistant to thermal fatigue and can maintain its strength even at high temperatures. It can be hardened by heat treatment and has good machinability.
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| SIMILAR STEEL GRADES | ||||||
National Standard | Manufacturer Standard | |||||
| GB | AISI | DIN | JIS | Erasteel | Bohler | Hitachi |
*3Cr5WMoSiV | H2 | 1.2602 | SKD62 | - | W321/W320 | - |
| Chemical composition % | ||||||||||
C | Si | Mn | P ≤ | S ≤ | Cr | W | Mo | V | Co | etc. |
0.35 | 1.10 | 0.30 | 0.028 | 0.02 | 5.15 | 1.30 | 1.40 | 0.40 | - | |
| Characteristics | |||
Annealed Hardness HB | Heat Treatment Temperature ℃ | Tampering Hardness HRC | |
Hardening | Tempering | ||
235 | 1020 | 530-560 | 45-53 |
| Application | |
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