42CrMo4 CrMo alloy material steel for heat treatment equivalent grade in DIN standard
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Ordinary carbon structural steel 42CrMo4 CrMo alloy material steel for heat treatment has many impurities and low price. The ordinary carbon structural steel is used in places with low performance requirements and low strength, but it has good plasticity, toughness and cold deformation performance. High quality carbon structural steel has less harmful impurities, and its strength, plasticity and toughness are better than those of ordinary carbon structural steel. High quality carbon structural steel is mainly used to manufacture important mechanical parts.
As to the Chemical composition, the different content is a main on carbon content, while the carbon content of 42CrMo4 CrMo alloy material steel for heat treatment, A283Gr. D is no more than 0.27% and it is higher than Grade C (≤0.24%) ; as to the mechanical property, the differences are tensile strength and yield strength, while the tensile strength of ASTM A283 Gr.D is 415-550MPa (60-80 ksi) and yield strength of ASTM A283 Grade D is 230MPa (33 ksi).
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