Used for heavy-duty mechanical tools and trials under extreme pressure
SIMILAR STEEL GRADES | ||||||
National Standard | Manufacturer Standard | |||||
GB | AISI | DIN | JIS | Erasteel | Bohler | Hitachi |
- | - | - | - | - | - | - |
Chemical composition % |
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C | Si | Mn | P ≤ | S ≤ | Cr | W | Mo | V | Co | etc. |
1.58 | 0.30 | 0.30 | 0.028 | 0.015 | 4.70 | 10.3 | 2.0 | 4.90 | 8.00 |
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Characteristics |
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Annealed Hardness HB | Heat Treatment Temperature ℃ | Tampering HardnessHRC | |
Hardening | Tempering | ||
300 | 1180-1220 | 540-570 | 65-69 |
For wear-resisting press tool and guide palte etc
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