Comparing with steel sheet ASTM A514 Grade Q and sheet A514 Grade R, for the chemical composition,steel sheet ASTM A514 Grade Q contains Chromium 1.00-1.50 %,and steel plates ASTM A514 Grade R just contains 0.35-0.65%.
15CrMn steel round bar is belongs to alloy structural round bar, and it under Chinese standard GB/T 3077-1988. 15CrMn steel round bar is carburizing round bar with good harden ability. The following is 15CrMn round bar details for your reference.
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