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SMA400BP atmospheric corrosion resisting steel sheet 500 tons exported to Georgia
SMA400BP atmospheric corrosion resisting steel sheet 500 tons exported to Georgia
- Comments: 40Cr alloy belongs to gb3077 "alloy structural steel". The carbon content of 40Cr steel is 0.37% ~ 0.44%, which is slightly lower than that of 45 steel. The content of Si and Mn is equivalent, and the content of Cr is 0.80% ~ 1.10%. In the case
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