GRADE : S45C, S50C, 440C, SSA 2311 / 2738 / 2316 / 2083 / 2084 Plastic Mould Steels are characterised by good dimensional stability during heating, good polishability, high impact strength and good wear characteristics. This steel is an alloy of iron and nickel with a minimum of 10% carbon. It is used to make plastic moulds and dies, as well as castings for various purposes. 塑料模具钢的特点是加热时尺寸稳定性好、抛光性好、冲击强度高、耐磨性好。这种钢是铁镍合金,碳含量至少为10%。它用于制造各种用途的塑料模具和铸件。