stainless hlau chav dej txee

Nws yog ua los ntawm cov hlau tsis zoo stainless hlau phaj thiab lwm yam ntaub ntawv los ntawm ntau cov txheej txheem, nrog ntau yam qauv, tsim tshwj xeeb, kev tiv thaiv ib puag ncig, ya raws-pov thawj, pwm-pov thawj, xeb-pov thawj, tsis muaj dej tsis zoo, zoo nkauj thiab ruaj khov, thiab stainless hlau phaj kuj tseem siv tau thiab rov siv dua. Feem ntau siv daim hlau yog 202 #, 304 #, 201 # thiab lwm yam specifications.

Disadvantages: 200 series stainless hlau phaj, txawm hais tias hom phaj no tsis sib nqus thaum kuaj nrog cov hlau nplaum, tab sis cov phaj no tsis tshua muaj cov ntsiab lus ntawm sulfur thiab carbon raws li lub teb chaws tus qauv, thiab hloov ib feem los yog tag nrho cov nickel nrog manganese (thiab nitrogen. ) los tsim cov ntsiab lus qis nickel ntawm austenitic stainless hlau. Qhov tsis zoo ntawm cov khoom siv no yog tias 18 feem pua ​​​​ntawm cov ntsiab lus chromium thiab cov ntsiab lus tsis tshua muaj nickel tsis sib npaug thiab ferrite yog tsim. Vim li no, cov ntsiab lus chromium hauv 200 series stainless hlau raug txo mus rau 15 feem pua ​​​​rau 16 feem pua. Qee zaum Nws tau poob mus rau 13 feem pua ​​​​rau 14 feem pua, thiab nws cov corrosion kuj tsis tuaj yeem muab piv nrog 304 thiab lwm yam hlau zoo sib xws. Tsis tas li ntawd, manganese thiab qee zaum tooj liab txo cov nyhuv ntawm repassivation nyob rau hauv acidic tej yam kev mob rau corrosion qhov chaw nyob rau hauv deposition cheeb tsam thiab crevices. 200 series steel yuav ua tsis tiav ntawm cov xwm txheej no kwv yees li 10-100 zaug sai dua 304 stainless hlau. Tsis tas li ntawd, cov seem ntawm cov sulfur thiab carbon cov ntsiab lus ntawm cov hlau no feem ntau tsis tswj tau thaum lub sijhawm tsim khoom, thiab cov khoom siv tsis tuaj yeem taug qab mus rau nws qhov chaw, txawm tias cov khoom siv rov ua dua tshiab. Yog tias Cr-Mn steels tsis tau teev tseg, lawv tuaj yeem ua rau muaj kev phom sij ntawm cov khoom seem, uas ua rau cov hlau nplaum uas muaj cov ntsiab lus siab manganese poob siab, yog li 200 series nplooj ntawv yuav qhia me me xim av me ntsis thaum raug ya raws huab cua, thiab tom qab ib ntus yuav. xeb.