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How To Distinguish True And False Die Steel?
Original: Original | Author: DGMF Mold Clamps | Publish Time: 2020-10-17 | 3369 Views | Share:
Generally, two methods are commonly used to judge the true and false mold steel.


Generally, two methods are commonly used to judge the true and false mold steel:


1. The ingredients are judged true or false;


2. The price is judged true or false.


True and false ingredients:


● P20 should contain 0.15% Mo


P20, the national standard 3Cr2Mo, corresponds to the German standard 1.2311. It must contain Mo--0.15% or more to be the real P20.


P20 function overview: 


Suitable for the production of high-quality plastic molds. It has good machinability and polishability, good dimensional stability, uniform material, and high hardness.


Common P20 fake materials: substitute materials with lower Cr and Mo content, such as 35CrMo, 42CrMo, 40Cr, 40CrMn, etc.


● 718 should contain 0.15% Mo and 0.90% Ni


718, which is the national standard 3Cr2NiMo, corresponds to the German standard 1.2738, referred to as 738. Only if it contains Mo---0.15% and Ni---0.85% or more, it can be the real 718.


718, function overview: polishing, electro-erosion, welding repair, and cutting workability are good, the material is uniform and high in hardness.