20CrMnMo yog ib hom ntawm cov qauv hlau alloy. Cov lej lej: A34202 20CrMnMo steel phaj muaj kev ua haujlwm kub zoo thiab kev ua haujlwm zoo tom qab normalizing. Txawm li cas los xij, qhov kev ua tau zoo ntawm cov hlau phaj ua los ntawm cov khoom siv no tsis zoo, yog li nws yuav tsum tau preheated kom zoo ua ntej vuam thiab tempered nyob rau lub sijhawm tom qab vuam. 20CrMnMo alloy steel feem ntau yog siv los tsim lub zog, camshaft txuas rods, thiab lwm yam.
Tshuaj muaj pes tsawg leeg ntawm 20CrMnMo steel phaj:
Cov pa roj carbon C: 0 17-0.23
Silicon Si: 0.17-0.37
Manganese Mn: 0 90-1.20
Sulfur S: tso cai cov ntsiab lus seem tsawg dua lossis sib npaug rau 0.015
Phosphorus P: tso cai cov ntsiab lus seem tsawg dua lossis sib npaug rau 0.025
Chromium Cr: 1.10-1.40
Nickel Ni: tso cai cov ntsiab lus seem tsawg dua lossis sib npaug rau 0.030
Copper Cu: tso cai cov ntsiab lus seem tsawg dua lossis sib npaug rau 0.030
Molybdenum Mo: 0 20-0.30
Mechanical zog ntawm 20CrMnMo alloy steel phaj:
Tensile zog (σb / MPa): Ntau dua lossis sib npaug rau 1180
Yield point (σs/MPa): Ntau dua lossis sib npaug rau 885
Elongation tom qab so (δ5 /%): Ntau dua lossis sib npaug rau 10
Thaj chaw shrinkage (ψ /%): Ntau dua lossis sib npaug rau 45
Kev poob siab lub zog (Aku2 / J): Ntau dua lossis sib npaug rau 55
Brinell hardness (HBS100/3000) (annealed lossis tempered ntawm qhov kub thiab txias): Tsawg dua los yog sib npaug rau 217
