430 vs 410 Ferritic vs Martensitic Stainless Steels: Kho kom zoo nkauj nqi- Ua tau zoo vs Weldable Nruab Nrab Zog

 

Dab tsi yog lawv cov ntsiab lus tseem ceeb thiab qhov sib txawv ntawm kev ua haujlwm tseem ceeb?

430 muaj 16–18% Cr, Tsawg dua lossis sib npaug li 0.12% C, tsis muaj peev xwm hardening - xa lub zog tensile ntawm ~ 450 MPa, zoo atmospheric corrosion kuj, thiab zoo heev formability rau stamping.410 nta 11.5–13.5% Cr, Tsawg tshaj li 10% los yog sib npaug rau 10% C hardness ntawm ~ 45 HRC thiab tensile lub zog ntawm ~ 520 MPa- muab nruab nrab hnav tsis kam thiab weldability rau txhua yam khoom.430 tsis yog - tshav kub- kho tau thiab tseem nyob rau hauv txhua yam mob, thaum 410 yuav tsum tau quenching thiab tempering los qhib nws lub zog tag nrho.

Yuav ua li cas lawv cov khoom haum rau cov kev siv sib txawv?

430 yog qhov kev xaiv saum toj kawg nkaus rau kev kho kom zoo nkauj thiab lub teeb-cov haujlwm ua haujlwm: cov khoom siv vaj huam sib luag, chav ua noj backsplashes, architectural trim, thiab cookware bases-kev pab cuam los ntawm nws cov nplaim du thiab formability.410 dominates nruab nrab-lub zog welded mechanical qhov chaw: twj tso kua mis{2} cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. rau qhuav industrial ib puag ncig.

Lawv cov kev tiv thaiv corrosion piv li cas hauv tiag - ntiaj teb teeb tsa?

430 muaj zoo atmospheric corrosion tsis kam tshaj 410, zam qhuav sab hauv tsev thiab sab nraum zoov tej yam kev mob uas tsis muaj rusting tseem ceeb. Nws yuav corrode nyob rau hauv cov ntug dej hiav txwv los yog av ib puag ncig yam tsis muaj kev tiv thaiv coatings.410 cov ntsiab lus chromium qis txwv nws corrosion kuj rau qhuav nyob rau hauv tsev; nws rusts sai sai nyob rau hauv cov av ntub los yog ib puag ncig tshuaj lom neeg tshwj tsis yog coated (xws li, galvanizing, hmoov txheej). Ob qib tsis haum rau marine los yog tshuaj ua daim ntawv thov - hloov mus rau 304 los yog 316 rau cov kev siv no.

Dab tsi yog kev lag luam fabrication- tawm ntawm ob qib?

430 muaj zoo formability rau sib sib zog nqus nqus thiab stamping tab sis tsis zoo weldability (kev pheej hmoo ntawm rhiab heev thiab embrittlement); mechanical joining (riveting, bonding) yog nyiam.410 yog weldable nrog preheating mus rau 150-200℃thiab post-weld tempering kom tshem tawm cov residual stress-ua rau nws haum rau welded mechanical assemblies.430 tshuab sai dua thiab nrog cov cuab yeej qis dua 410, tshwj xeeb tshaj yog nyob rau hauv lub xeev annealed.

Cov kev txwv tseem ceeb thiab cov txheej txheem xaiv yog dab tsi?

430 yog nquag embrittlement ntawm qhov kub siab tshaj 600 degree; 410 tuav lub zog nruab nrab mus txog 300℃.Ob qib raug nqi 30-40% tsawg dua 304, ua rau lawv zoo tagnrho rau cov nqi-sensitive, qis- daim ntawv thov corrosion.Xaiv 430 rau cov hniav thiab lub teeb- lub luag haujlwm stamping qhov chaw; xaiv 410 rau nruab nrab-lub zog welded mechanical Cheebtsam hauv qhov chaw qhuav.