SMA400AW weather resistant steel material cold rolled steel plate

50Mn2 seamless steel pipe is a kind of high-strength medium-carbon quenched and tempered manganese steel. It has high strength, elasticity and wear resistance. At the same time, SMA400AW weather resistant steel material product has high hardenability. The critical hardenable diameter in oil is 10-28mm. The critical hardening diameter is 24～49mm, and the machinability is fair.

The thermal conductivity of NM360 wear-resistant plates is only 1/2 of that of carbon steel, SMA400AW weather resistant steel material, and even in the high temperature stage of 900-1000℃, the thermal conductivity is lower than that of carbon steel at the same temperature. Therefore, the heating rate of the NM360 wear-resistant plate, especially in the low temperature stage, should be lower than that of carbon steel to avoid excessively steep internal temperature gradients and cracks.

How to distinguish between hot rolled and cold rolled process?
The hot-rolled steel sheet has low strength, easy production and processing, and good plasticity. The process performance of the hot-rolled steel plate is poor (air oxidation and low smoothness), but the plastic deformation is good. Generally, it is medium and thick plate, SMA400AW weather resistant steel material, high compressive strength, high strength, and high surface smoothness. Cold-rolled steel sheets have high strength and relatively difficult production and processing, but they are not easy to deform and have high compressive strength.

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