High strength, tough and high heat check resistance hot work die steel.
DH31-EX is a hot working die steel with the best balance of strength and
toughness showing the comparable softening resistance to SKD7 and twice hardenability as that of SKD61.
- High hardenability
High toughness is obtained even in large size die.
- High strength
High softening resistance at elevated temperature contributes to high wear
- High toughness
DH31-EX has higher toughness than that of SKD61.
- High heat check resistance
Excellent heat check resistance leads to longer life.
- Aluminum die cast dies especially for large size – long life use
- Aluminum die cast parts such as pins and plunger sleeve
- Hot forging dies
- Hot pressing dies
- Aluminum extrusion dies
Examples of Applications:
Microstructure (Quenched and tempered)
Quenching rate vs. Toughness
Heat Checking Resistance
Al Erosion Resistance
Thermal Expansion Rate
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responsible for damage caused by misunderstanding or improper use of the
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may be subject to change without notice. Please inquire of related department
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