SUS420 txiav cov cuab yeej qib martensitic hlau

SUS420 stainless hlau yog martensitic stainless hlau nrog qee yam hnav tsis kam, corrosion kuj thiab siab hardness.

SUS420 stainless hlau belongs rau SUS420 "txiav cuab yeej qib" martensitic hlau, zoo ib yam li cov high chromium stainless hlau thaum ntxov. Nws yog tsim rau cov chaw ua haujlwm dav dav uas xav tau cov hlau tsis muaj steel. SUS420 stainless hlau yog tsim rau ntau yam precision machinery, bearings, cov khoom siv hluav taws xob, cov twj paj nruag thiab cov ntsuas, ntsuas cov cuab yeej, cov cuab yeej thauj mus los, cov khoom siv hauv tsev thiab lwm yam.

Cov yam ntxwv ntawm SUS420 stainless hlau yog raws li nram no:
Tensile zog σb (MPa): quenched thiab tempered, Ntau tshaj los yog sib npaug rau 635
Yield zog σ0.2 (MPa): quenched thiab tempered, Ntau tshaj los yog sib npaug rau 440
Elongation δ5 (%): quenched thiab tempered, Ntau tshaj los yog sib npaug rau 20
Sectional shrinkage ψ (%): quenched thiab tempered, Ntau tshaj los yog sib npaug rau 50
Impact zog Akv (J): quenched thiab tempered, Ntau tshaj los yog sib npaug rau 63
Hardness: annealed, Tsawg dua los yog sib npaug rau 223HB; quenched thiab tempered, Ntau dua los yog sib npaug rau 192HB

Cov khoom specifications ntawm SUS420 stainless hlau tuav yog varied. Feem ntau specifications muaj xws li txoj kab uas hla thiab ntev. Txoj kab uas hla feem ntau yog nruab nrab ntawm 2 hli thiab 300 hli, thiab qhov ntev tuaj yeem hloov kho raws li cov neeg siv khoom xav tau. Tsis tas li ntawd, kev kho saum npoo xws li brightening thiab pickling tuaj yeem ua tau raws li qhov xav tau ntawm cov ntawv thov tshwj xeeb.