碳C:0.37~0.44
硅Si:0.17~0.37
錳Mn:1.40~1.80
磷 P:≤0.030 (殘留含量)
硫 S:≤0.030 (殘留含量)
鉻 Cr:≤0.30 (殘留含量)
鎳 Ni:≤0.30 (殘留含量)
銅 Cu:≤0.25 (殘留含量)
熱處理:
次淬火加熱溫度(℃):840;冷卻劑:水、油
【力學(xué)性能】
回火加熱溫度(℃):540;冷卻劑:水
抗拉強(qiáng)度(σb/MPa):≥885
屈服點(diǎn)(σs/MPa):≥735
斷后伸長(zhǎng)率(δ5/%):≥12
斷面收縮率(ψ/%):≥45
沖擊吸收功(Aku2/J):≥55
布氏硬度(HBS100/3000)(退火或高溫回火狀態(tài)):≤217
試樣尺寸:試樣毛坯尺寸為25mm
40Mn2交貨狀態(tài):以熱處理(正火、退火或高溫回火)或不熱處理狀態(tài)交貨,交貨狀態(tài)應(yīng)在合同中注明。
嘉旺合金結(jié)構(gòu)鋼: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
俄羅斯合金結(jié)構(gòu)鋼: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
美國(guó)合金結(jié)構(gòu)鋼: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
英國(guó)合金結(jié)構(gòu)鋼: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
日本合金結(jié)構(gòu)鋼:**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
法國(guó)合金結(jié)構(gòu)鋼:32M5,35M5,40M5,~55M5,12C3,18C3,32C4,42C4,45C4,12CD4,18CD4,25CD4,30CD4,42CD4,35CD4,20NC11,40CAD6.12
德國(guó)合金結(jié)構(gòu)鋼: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