合金結(jié)構(gòu)鋼：SMn420 　　 　　●特性及適用范圍：具有中等強(qiáng)度，冷變形時塑性高，低溫性能好，與相應(yīng)含碳量的碳鋼相比，其淬透性較高。一般用作較小截面的零件，與20Cr鋼相當(dāng)，可作滲碳小齒輪、小軸、鋼套、活塞銷、柴油機(jī)套筒、汽車轉(zhuǎn)向滾輪軸、汽門頂桿等；也可作調(diào)質(zhì)鋼用，如冷鐓螺栓或較大截面的調(diào)質(zhì)零件。。 本公司供應(yīng)各國鋼材; 合金結(jié)構(gòu)鋼：12Mn,18Nb,10MnSiCu,12MnV,14MnNb,16Mn,15MnV,15MnTi,16MnNb,20Mn2 30Mn2,35Mn2,40Mn2,45Mn2,50Mn2,20MnV,27SiMn,35SiMn,42SiMn,40B,45B,50B,40MnB,45MnB,20Mn2B,20MnMoB,15MnVB,20MnVB,40MnVB,20MnTiB, 20SiMnVB,15Cr,15CrA,20Cr,30Cr,35Cr,40Cr,45Cr,50Cr,38CrSi, 12CrMo,15CrMo,20CrMo,30CrMo,30CrMoA,35CrMo,42CrMo,12CrMoV, 35CrMoV,12Cr1MoV,38CrMoAl,20CrV,40CrV,50CrVA, 15CrMo,20CrMn,40CrMn,20CrMnSi,25CrMnSi 美國：1320, 1330 ,1325, 1340, 1345, 14B35, 14B50, 5115 ,5120, 5130, 5135, 5140, 5145, 5150, 4119, 4118, 4135 4140 ,6140, 6150, 5115, 5120, 4119, 4142, 3140, 3415, 3310, 3435 ,2515 ,3316, 8620 ,4340,E3310,E3316,4347 德國：20Mn6 ,30Mn5, 36Mn5 ,46Mn7, 50Mn7, 15MnV5, 20MnV6 ,42MnV7 ,37MnSi5, 46MnSi4, 15Cr3, 20Cr4 28Cr4, 34Cr4 ,41Cr4, 13CrMo4.4 ，15CrMo5，20CrMo5，25CrMo4，34CrMo4 ，42CrMo4， 24CrMoV5.5 21CrVMoW12,41CrAlMo7, 21CrV4, 51CrV4, 50CrV4, 16MnCr5, 20MnCr5, 42CrMo4, 30MnCrTi4, 40NiCr6 14NiCr10 ,14NiCr14 ,31NiCr14, 14NiCr18, 21NiCrMo2, 36CrNiMo4, 1.1169 ,1.1165, 1.1167, 1.0912 ,1.0913 1.5213, 1.5217, 1.5223 ,1.5122 ,1.5121, 1.7015, 1.7027, 1.7030, 1.7035, 1.7335, 1.7262, 1.7264, 1.7218 ,1.7220 1.7225, 1.7733, 1.8509, 1.7510, 1.8159, 1.7131, 1.7225, 1.8401 ,1.5711, 1.5732 ,1.5752, 1.5755, 1.5860, 日本：SMn420,SMn433,SMn438,SMn443,SCr415,SCr420,SCr430,SCr435,SCr440,SCr450,SCM415,SCM420,SCM435,SCM440,SCM430,SACM645,SMnC420,SMnC443,SNC236,SNC415,SNC815,SNC631,SNC836,SNCM220,SNCM439,SNCM447