化学成分
碳 C :0.33~0.38
硅 Si:0.15~0.35
锰 Mn:0.60~0.90
硫 S :允许残余含量≤0.030
磷 P :允许残余含量≤0.030
铬 Cr:0.90~1.20
镍 Ni:允许残余含量≤0.25
铜 Cu:允许残余含量≤0.30
钼 Mo:0.15~0.30
力学性能
抗拉强度 σb (MPa):≥985(100)
屈服强度 σs (MPa):≥835(85)
伸长率 δ5 (%):≥12
断面收缩率 ψ (%):≥45
冲击功 Akv (J):≥63
冲击韧性值 αkv (J/cm²):≥78(8)
硬度 :≤229HB
试样尺寸:试样毛坯尺寸为25mm
热处理规范及金相组织
热处理规范:淬火850℃,油冷;回火550℃,水冷、油冷。
退火annealing No.1 "760±10℃退火,炉冷至400℃空冷。
嘉旺合金结构钢:09MnNb 09Mn2 18Nb 09MnCuPTi 12MnSiCu 14MnNb16Mn 16MnRE 10MnPNbRE 14MnViRE 15MnVN 20Mn2 30Mn2 35Mn2 40Mn2 45Mn2 50Mn2 20MnV30Mn2MoW 27SiMn 35SiMn 42SiMn 20SiMn2MoV 25SiMn2MoV 37SiMn2MoV 40B 45B 40MnB 45MnB20Mn2B 20MnMoB 20MnVB 40MnVB 20MnTiB 25MnTiBRF 20SiMnVB 15Cr 30Cr 35Cr 40Cr 45Cr50Cr 38CrSi 12CrMo 20CrMo 30CrMo 35CrMo 42CrMo 12CrMoV 12Cr1MoV 35CrMoV 24CrMoV25Cr2MoVA 25Cr2Mo1VA 20Cr3MoWVA 38CrMoA1 20CrV 40CrV 50CrVA 15CrMn 20CrMn 40CrMn20CrMnSi 25CrMnSi 30CrMnSi 30CrMnSiA 35CrMnSiA 15CrMnMo 20CrMnMo 40CrMnMo 20CnMnTi30CrMnTi 20CrNi 40CrNi 45CrNi 50CrNi 12CrNi2 30CrNi3 37CrNi3 12Cr2Ni420Cr2Ni4 20CrNiMoA 40CrMiMoA 45CrNiMoVA 18Cr2Ni4WA 25Cr2Ni4WA
俄罗斯合金结构钢:20Г2,30Г2,35Г2,40Г2,45Г2,50Г2,35CГ,35CГ,15X,20X,30X,35X,40X,45X,38XC,12XM,15XM,20XM,30XM,35XM,12XMΦ,12X1MΦ,25X2M1ΦA,20XΦ,40XΦA,50XΦA,15XГ,18XГ,20XГCA,30XГCA,40XH,20XH3A,30XH3A,38XMIOA,40XHMA
美国合金结构钢:1330,1335,1340,1345,TS14B35,50B46H,50B40,50B44,5115,5120,5130,5132,5140,51,455,147,A-387Cr. B,4125,4130,4140,4135,6120,6140,6150,5152,3140H,3316,3325,3330,80B20,4340
英国合金结构钢:150M19,150M28,150M36,En46,En46,523M15,527A19,530A30,530A36,520M40,534A99,620Cr.B,1653,CDS12,CDS110,En20A,1717COS110,708A42,708M40,708A37,735A30,527A60,640M40,653M31,905M39,871M40
日本合金结构钢:**n420,**n433H,**n438(H),**n443,SCr415(H),SCr420H,SCr430,SCr430(H),SCr440,SCr445,STC42,STT42,STB42,SCT42,STT42,STB42,SCM420,SCM3,SNC236,SNC631H,SNC631,SACM645,SNCM439
法国合金结构钢:32M5,35M5,40M5,~55M5,12C3,18C3,32C4,42C4,45C4,12CD4,18CD4,25CD4,30CD4,42CD4,35CD4,20NC11,40CAD6.12
德国合金结构钢:20Mn5,30Mn5,36Mn5,46Mn7,20MnV6,37MnSi5,46MnSi4,15Cr3,20Cr4,28Cr4,34Cr4,41Cr4,13CrMo44,16CrMo44,20CrMo44,25CrMo4,42CrMo4,34CrMo4,13CrMoV42,22CrV4,42CrV6,40NiCr6,20NiCr14,28NiCr10,41CrAlMo07,40NiCrMo22