The material 20Cr2Ni4A is a kind of structural alloy steel. 20 cr2ni4a is high quality alloy steel and it has high strength,toughness and hardenability.For 20Cr2Ni4A steel.
S650MC steel work is a kind of steel welding structures, widely used in producing the car structure, machining pars of marine, oil drill platform, pipe connectors and so on.
A302 Gr. C alloy steel plates shall be normally supplied in the as-rolled condition. Plates with normalizing may be ordered or stress relieved, or both. A302 Gr. C above 50mm in thickness shall be normalized. The heat treatment includes quenching, normal
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