The welding performance of astm a573 standard is required to be high

Quenching is a common heat treatment process. It is the metal heat treatment process in which the astm a573 standard metal workpiece is heated to a proper temperature and kept for a period of time, then immersed in the quenching medium for rapid cooling. Quenching can improve the strength and hardness of steel in a large range, and adjust the coordination between astm a573 standard strength and hardness, plasticity and toughness. Quenching is generally used as the final heat treatment.

42Cr2Mo steel is an ultra-high strength steel. The steel has high strength and toughness, good hardenability, no obvious temper brittleness, and small deformation during quenching. After quenching and tempering, 42Cr2Mo alloy has a higher fatigue limit and resistance to multiple impacts. Good impact toughness at low temperature, high creep strength and enduring strength at high temperature. The steel astm a573 standard usually adopts surface quenching after quenching and tempering as the heat treatment plan.

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