Cov kev xav tau ntawm cov ntsia hlau ntsia hlau loj
U71MN Hlau Railyog lub siab carbon graphy nruab nrab manganese steel nrog cov khoom siv kho tau zoo tshaj plaws. Nws muaj cov roj carbon ntau (c) thiab manganese (mn) cov ntsiab lus, nrog cov ntsiab lus carbon ntau xws li xws li.}}}. 76% thiab manganese cov ntsiab lus saum 1%. Qhov no alloy muaj pes tsawg muab U71MN steel siab muaj zog, hardness, thiab coj nws tsim nyog rau kev tsim cov crane cov hlau uas yuav tsum tau tiv thaiv hnyav thiab nquag sib txhuam.
Cov Lus Qhia Tshwj Xeeb:
Loj: 60kg \/ m
Ntev: 12m ~ 25m lossis lwm yam ntev raws li cov neeg siv khoom
Khoom siv: 50mn, u71mn
Txheem: GB 2585-2007
| U71mn | Cov Cuab Yeej Cuab Yeej Cuab Yeej | Tshuaj Muaj Tshuaj | ||||||||||||
| Paib lub zog | Lub zog tensile | Elongation | Kev nyuaj | C | Si | Mn | S | P | Cr | Ni | CU | |||
| MPa | kg \/ mm² | MPa | kg \/ mm² | lub min | HB | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | ||||
| Ntau dua los yog sib npaug rau 880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | 0.25 | |||||||
