As modified pre-hardened mirror-surface plastic die steel, HS 718 has good hardenability, hardness uniformity (±1.5HRC）and mirror polishing property. It is a new generation of large-section pre-hardened mirror plastic mold steel.
Home appliances (TV box cover, Air conditioning shell, etc.) large-section-size plastic mold (Thickness up to 1000 mm).
Car inner decoration die, such as dashboard die, sound box die, etc.
A wide range of pre hardened hardness and good hardness uniformity.
The hardness of plastic mold steel ranges in 34~40HRC, which can be adjusted according to client requirements, and the section hardness fluctuates within ±1.5 HRC.
It can meet the roughness requirements of polished surface for the plastic mold.
Good machining performance
Good welding performance
Pattern etching performance
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