9840合金结构钢:
●化学成份:
碳 C :0.37~0.44
硅 Si:0.17~0.37
锰 Mn:0.50~0.80
硫 S :≤0.02
磷 P :≤0.025
铬 Cr:0.60~0.90
镍 Ni:1.25~1.65
铜 Cu:≤0.025
钼 Mo:0.15~0.25
合金结构钢用途:合金结构钢广泛用于船舶、车辆、飞机、导弹、兵器、铁路、桥梁、压力容器、机床等结构上。
合金结构钢:12Mn,16Mn,16MnNb,20Mn230Mn2,50Mn2,
20MnV,27SiMn,35SiMn,,40MnVB,20MnTiB,20SiMnVB,15Cr,15CrA,20Cr,30Cr,35Cr,40Cr,45Cr,50Cr,38CrSi,12CrMo,,30CrMoA,35CrMo,40CrMn,20CrMnSi,25CrMnSi,Q345,Q295,Q390,Q420
美国:1320, 1330 ,1325, 1340, 1345,,5120, 5130, 5135, 4140 ,6140, 6150, 5115, 5120, 4119, 4142, 3140, 3415, 3310, 3435 ,2515 ,3316, 8620 ,4340,E3310,E3316,4347
德国: 36Mn5 ,46Mn7, 50Mn7, 15MnV5, 20MnV6 ,42MnV7 ,37MnSi5, 46MnSi4, 15Cr3, 20Cr4 28Cr4, 34Cr4 ,41Cr4, 13CrMo4.4 ,15CrMo5,21CrVMoW12,41CrAlMo7, 21CrV4, 51CrV4, 50CrV4,
日本SMn420,SMn433,SMn438,SMn443,SCr415,SCr420,SCr430,SCr435,
SCr440,SCr450,SCM415,SCM420,SCM435,SCM440,SCM430,SACM645,SMnC420,SMnC443,SNC236,SNC415,SNC815
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