1、JG/T5011.1-92表1一般工程用铸造碳钢化学成分元素纱前识魔%饽钢牌号残余元素CSiMnNiCrCuMoZG200-4000.200.80ZG230-4500.300.50ZG270-5000.400.900.040.300.350.300.200.05ZG310-5700.500.60ZG340-6400.60注：对C上限每减少0.01%，允许增加0.04%的Mn,对ZG200一400的Mn最高至1.00%，其余四个牌号Mn最高至1,20%。残余元素总量不超过1.00%，如需方无要求，残余元素可不进行分析。对有焊接要求的铸件可按GB7659中2.1的规定执行。化学分析允许偏差：C州，
2、Si(0.35、S1(0.35);Mn(0.30)M(0.80)S(0.050),P(0.050)m.表2常用普通合金铸钢的化学成分化学成分%铸钢牌号SiMnCrVMo不大于ZG40Cr0.35-0.450.200.400.500.800,801.100.040.04ZG16Mn0.12-0.200.200.55j.201.600.0450.045ZG25Mn0.200.300.300.45p.101.30一0.040.04ZG25Mna0.200.300.300.45l.701.900.040.04ZG35Mn0.30-0.400.200.401.20-1.600.040.04ZG40Mn0
3、.350.450.300.45.201.500.040.04ZG45Mn0.40-0.500.300.45t.201.500.040.04ZG50Mn0.450.550.200.45.20-1.500.040.04ZG12MnV0.151b.200.55.00-1.400.040.04ZG20MnSi0.160.220.600.81.00-1.300.040.120.0450,045ZG35Mn Si0.300.400.600.801.10-1.400.040.04ZG35CrMnSi0.300.400.500.800.901.200.500.800.040.04ZG35CrMo0.30-0.400.17-0.370.50-0.800.80-1.100.200.300.040.04注：化学分析允许偏差同于“表1”注。3
