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Hot working die steel. Under the conditions of high hardness (≥55HRC), HS CR7 still has good red hardness and abrasion resistance, as well as good toughness. Therefore, it is widely used in hot stamping forming and hot forging dies.
Steel Grade | C | Si | Mn | P | S | Cr | Ni* | Cu* | Mo | V |
HS CR7 | 0.40-0.44 | 0.40-0.60 | 0.30-0.50 | ≤0.015 | ≤0.003 | 6.30-6.70 | ≤0.25 | ≤0.25 | 1.25-1.35 | 0.75-0.85 |
* residual content allowed
The kind of hot work die steel is used in hot stamping die and hot forging die.
Under the premise of high hardness, it still has good thermal yield strength, thermal crack resistance, high-temperature wear resistance and plastic deformation resistance in high temperature.
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