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What is the difference between 718H mold steel and P20H mold steel
Mar 22, 2020
What is the difference between 718H mold steel and P20H mold steel

718H mold steel
718H is only available from Sweden's Ichiba, which is actually 738, but Ichiba changed its name to 718H in order to distinguish it from the traditional name.

Features
One hundred hundred 718 mold steel in Sweden, corresponding to China's 3Cr2NiMo mold steel, 718H is an improved steel grade of P20H mold steel (3Cr2Mo mold steel), which has greatly improved quality, which makes it fill the shortage of P20 mold steel and meet the P20H mold Where steel does not meet requirements.

Except that it cannot be used for plastic mold parts with corrosion resistance requirements, it is currently the typical grade of the most widely used plastic mold steel for most mold steels. It is often referred to as "advanced" plastic mold steel.

Difference between 718H mold steel and P20H mold steel

718H Melamine Crockery Mold


(1) 718H = P20H + 1% Ni.

(2) The hardness of 718H steel is 4HRC higher than that of P20H.

(3) P20H is generally used as a less demanding plastic mold or plastic lower mold. 718H has good polishing performance and is generally used as a plastic mold with polishing requirements
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