20Cr4 Peev Castings
20Cr4 muaj zog hardenability, tsis muaj temper brittleness, weldability zoo heev, me ntsis nyiam rau cov kab nrib pleb, thiab zoo machinability thiab txias strain plasticity. Nws yog feem ntau siv nyob rau hauv quenching thiab tempering los yog carburizing thiab quenching xeev.
Khoom Taw Qhia
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20Cr4 Peev Castings |
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Yam khoom |
Khoom siv |
Txheej txheem ntau lawm |
Sintering kub |
Pwm |
Kev cai |
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20Cr4 Peev Castings |
20 cr4 |
Txhaj tshuaj molding |
1380 degree |
Yuav tsum customized |
Yog lawm |
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Tshuaj muaj pes tsawg leeg |
C:0.17-0.23% Si: 015-0.40% Mn:060-0.90% S: Tsawg dua lossis sib npaug rau 0.035% P: Tsawg dua lossis sib npaug rau 0.035% Cr: 090-1.20% |
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Cov ntaub ntawv muaj |
Carbon steel, alloy steel, aluminium alloy, qis-carbon stainless hlau, titanium alloy (TI, TC4), tooj liab alloy, kub alloy (718, 713) |
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20Cr4 muaj zog hardenability, tsis muaj temper brittleness, weldability zoo heev, me ntsis nyiam rau cov kab nrib pleb, thiab zoo machinability thiab txias strain plasticity. Nws yog feem ntau siv nyob rau hauv quenching thiab tempering los yog carburizing thiab quenching xeev. Nws yog siv los tsim cov kav dej siab ntau yam fasteners thiab qib siab carburized kav uas ua haujlwm hauv cov xov xwm tsis muaj corrosive thiab xov xwm nrog kev ua haujlwm kub hauv qab 250 degree thiab muaj nitrogen thiab hydrogen sib tov. Carbon qhov chaw xws li iav, ncej, thiab lwm yam.
Kev Kawm Txuj Ci
Tensile zog: σb (MPa): Ntau dua lossis sib npaug rau 885
Yield zog: σs (MPa): Ntau dua lossis sib npaug rau 685
Elongation: δ5 (%): Ntau dua lossis sib npaug rau 12
Thaj tsam shrinkage: ψ(%): Ntau dua lossis sib npaug rau 50
Lub zog cuam tshuam: Akv(J): Ntau dua lossis sib npaug rau 78
Hardness: Tsawg dua los yog sib npaug rau 197HBS
Nta thiab Daim Ntawv Thov
20Cr4 muaj qhov tsim nyog ntawm cov hlau alloy thiab cov ntsiab lus carbon yog li 0.2%. Tom qab kev kho mob carburization, qhov saum npoo muaj siab hardness thiab cov tub ntxhais tseem muaj qhov toughness zoo heev. 20Cr4 Peev Castings tau dav siv los ua cov khoom siv hauv boiler thiab chav turbine manufacturing industries. , cov hniav, forgings, cov ntaub ntawv profiled, high-pressure kav, ntau yam fasteners nyob rau hauv kev lag luam tshuaj, thiab siab-kawg carburized qhov chaw, xws li lub zog thiab shafts, nyob rau hauv lub machinery manufacturing kev lag luam.
Kev kho cua sov Specifications
Quenching cua sov kub (degree): 850-900 degree rau thawj zaug, roj txias; 770-820 degree rau zaum ob, roj txias;
Tempering cua sov (degree): 150 ~ 200 degree, cua txias
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