What is the chemical specification for EN steel grade S355J0 material

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the EN steel grade S355J0 material quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After EN steel grade S355J0 material quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

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EN steel grade S355J0 material, SN400 steel plate is for building structure. There are three grades (A, B, C), namely SN400A, SN400B, and SN400C steel plates. SN400A, SN400B, SN400C steel plate executive standard: JIS G3136.SN400B steel plate chemical composition: carbon C: not more than 0.2SN400B silicon Si: not more than 0.35SN400B manganese Mn: 0.6-1.4SN400B Phosphorus P: not more than 0.3SN400B sulfur S: not more than 0.015

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