钢种标准CSiMnPSQ195GBT700-2006≤0.12≤0.30≤0.50≤0.035≤0.040内控0.080.100.130.180.400.50≤0.035≤0.040Q215AGBT700-2006≤0.15≤0.35≤1.20≤0.045≤0.050内控0.100.130.130.180.400.55≤0.045≤0.050Q215BGBT700-2006≤0.15≤0.3