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718 Steel
718 Steel

HS 718 Plastic Die Steel


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.

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Chemical properties of HSSD 718

Steel Grade

C

Si

Mn

P

S

Cr

Mo

Nb

HS 718

0.25~0.35

0.10~0.30

1.50~2.00

≤0.015

≤0.005

1.30~1.70

0.30~0.40

0.02~0.04



Application of HSSD 718

  • 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.



Features of HSSD 718

  • 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.

  • Polishing Property

It can meet the roughness requirements of polished surface for the plastic mold.

  • Good machining performance

  • Good welding performance

  • Pattern etching performance

HSSD 718

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