Qib 420J2 (UNS S42000) stainless hlau

Tshuaj muaj pes tsawg leeg

Cov tshuaj muaj pes tsawg leeg ntawm stainless hlau qib 420J2 yog teev nyob rau hauv cov lus hauv qab no.

Element	Cov ntsiab lus (%)
Chromium, Cr	14
Nickel, Ni (yeem)	1
Manganese, Mn	1
Silicon, Sib	1
Phosphorus, P	0.04
Carbon, C	0.15-0.36
Sulfur, S	0.03
Hlau, Fe	Tshuav

 

Fabrication thiab Thaum tshav kub kub kho

Machineability

Stainless hlau qib 420J2 yog machinable ob leeg nyob rau hauv hardened thiab tempered tej yam kev mob xws li tig, drilling, thiab dabtsi yog khoov; Txawm li cas los xij nws tau pom zoo tias kev ua haujlwm hauv cov txheej txheem hardened yuav tsum zam kom deb li deb tau.

Vuam

Vuam ntawm stainless hlau qib 420J2 yog ib qho yooj yim. Nws raug nquahu kom tsis txhob siv vuam rau hauv qhov annealed los yog hardened thiab tempered tej yam kev mob vim nws ua rau tsim ntawm brittleness, uas ua rau txias cracking vim contraction stresses.

Ua ntej- cua sov thiab inter- dhau qhov ntsuas kub thaum lub vuam, ua raws li qhov txias txias thiab tom qab- vuam annealing yog cov kev ntsuas zoo los tiv thaiv kev tawg.

Annealing

Annealing ntawm cov khoom no yuav ua tau los ntawm cua sov uniformly rau 840-900℃(1544-1652℃F) thiab tuav kom txog rau thaum lub kub yog uniform thoob plaws hauv seem. Soaking thiab txias yog yuav tsum tau.