Qhov txawv ntawm 304 stainless hlau thiab 304L stainless hlau yeeb nkab

Qhov sib txawv tseem ceeb ntawm 304 stainless hlau thiab 304L yog cov tshuaj sib txawv, cov khoom siv kho tshuab thiab kev siv. Qhov txawv tshwj xeeb yog raws li nram no:
1. Cov tshuaj muaj pes tsawg leeg sib txawv:
Qhov yooj yim tshaj plaws yog tias cov ntsiab lus carbon ntawm 304L stainless hlau yog tsawg dua 0.03; Cov ntsiab lus carbon ntawm 304 yog tsawg dua 0.08
2. Cov khoom siv sib txawv:
304L yog hom hlau tau los ntawm kev txo cov ntsiab lus ntawm 304 kom tsawg dua 0.03%. Nws cov khoom siv dav dav yog yuav luag zoo ib yam li 304, tab sis 304L stainless hlau tuaj yeem cuam tshuam rhiab heev los ntawm nag lossis daus ntawm chromium carbide ntawm 500 thiab 900oC. Nws tsub kom qhov rhiab heev rau intergranular corrosion tshwm sim los ntawm vuam, thiab lwm yam, yog li nws yog haum rau loj-scale welded structural cov ntaub ntawv thiab cov yeeb nkab fittings uas yuav tsum tau siv ncaj qha tom qab vuam.
Qhov loj tshaj plaws ntawm 304L stainless hlau yog tias nws ua rau kom muaj kev nkag siab zoo rau intergranular corrosion thiab txo cov ntsiab lus carbon ntawm qhov vuam yam tsis ua rau muaj teeb meem thermal rhiab heev.
3. Kev siv sib txawv:

304 stainless hlau yog siv dav hlau nrog zoo corrosion kuj, kub tsis kam, kub tsis tshua muaj zog thiab txhua yam khoom; nws muaj cov khoom kub zoo xws li stamping thiab dabtsi yog khoov, thiab tsis muaj kev kho cua sov ua kom tawv nqaij tshwm sim (tsis yog sib nqus, siv Wenling rho tawm 196-800 degrees Celsius). Cov khoom siv hauv tsev (chav kawm I thiab II cov tais diav, cov txee, cov kav dej hauv tsev, lub rhaub dej, boilers, da dej), qhov chaw pib (wipers, mufflers, molded khoom), cov khoom siv kho mob, cov khoom siv hauv tsev, tshuaj, khoom noj khoom haus, kev ua liaj ua teb, nkoj qhov chaw. 304L stainless hlau yog cov hlau tsis muaj carbon 304. Raws li ib txwm muaj, nws cov corrosion kuj zoo ib yam li cov hlau 304, tab sis tom qab vuam los yog kev kho kev ntxhov siab, nws cov intergranular corrosion kuj zoo heev; nws kuj siv tau yam tsis muaj kev kho cua sov. Ua kom zoo corrosion kuj, siv kub 196-800 degrees Celsius. Nws yog qhov tsim nyog rau cov chav nyob sab nraum zoov, cov khoom siv hluav taws xob tiv thaiv hluav taws xob, thiab qhov chaw uas muaj kev kho cua sov nyuaj hauv kev lag luam xws li tshuaj lom neeg, thee, thiab roj av uas yuav tsum muaj kev tiv thaiv siab rau intergranular corrosion.

4. Tus nqi sib txawv:
Hais txog tus nqi, tus nqi ntawm 304L stainless hlau yog siab dua li ntawm 304 stainless hlau. Tus nqi txiav txim ntawm 304L stainless hlau yog 300-500 yuan / tuj siab dua li ntawm 304.
5. Txawv hardness:
Raws li tus qauv hardness, cov ntsiab lus carbon ntawm 304 stainless hlau yog me ntsis siab dua, thiab hardness ntawm 304 stainless hlau yog zoo dua li ntawm 304L stainless hlau, vim hais tias cov ntsiab lus carbon ncaj qha cuam tshuam rau hardness ntawm stainless hlau.