What are the differences between 42CrMo steel plate and 42CrMoA steel plate?

42CrMo steel plate and 42CrMoA steel plate both belong to the national standard high strength alloy structural steel.

The implementation standard of 42CrMo steel plate is GB/T 3077-2015, and the implementation standard of 42CrMoA steel plate is GB/T 3077-1999

1. Different characteristics

42CrMo steel plate has good mechanical properties and machinability, and is widely used.

42CrMoA steel plate has high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low temperature impact toughness. The steel is suitable for the manufacture of large and medium-sized plastic molds that require certain strength and toughness.

2. Different applications

There are mainly two types of materials in 42CrMo steel plate : plate and round bar. Among them, the plate is used for the processing and production of molds, and the round bar is used for direct machining parts, which has been recognized by the industry.

42CrMoA steel plate is suitable for the manufacture of large and medium-sized plastic molds that require certain strength and toughness.

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