PLASTIC MOLD STEEL-(Grade 1.2738,P20+Ni,AISI P20+Ni) Grade 1.2738 steel is one sort of plastic mold steel, equal to AISI P20+Ni plastic  mold device steel. Grade 1.2738 is a plastic mold tool metallic, used specially for plastic injection die moulds. While Nickel, chromium and molybdenium are the alloying factors for hardness and durability. Grade 1.2738 steel device metal is mainly designed for … Continue reading PLASTIC MOLD STEEL-(Grade 1.2738,P20+Ni,AISI P20+Ni)