201 Stainless Hlau Qib

 

Chemical Composition ntawm 201 Stainless Hlau

201 stainless hlau yog cais raws li austenitic stainless hlau, uas txhais tau hais tias nws feem ntau muaj lub ntsej muag -centered cubic crystal qauv. Nws cov tshuaj muaj pes tsawg leeg yog tsim los muab qhov sib npaug ntawm kev tiv thaiv corrosion, lub zog, thiab kev pheej yig los ntawm kev hloov qee cov ntsiab lus npib tsib xee nrog ntau dua manganese thiab nitrogen. Qhov no ua rau 201 stainless hlau tus nqi ntau dua - siv tau zoo rau qib 304 ntau dua.

Cov tshuaj muaj pes tsawg leeg ntawm 201 stainless hlau suav nrog cov hauv qab no:

Lub ntsiab	Cov ntsiab lus raug (wt%)	Lub luag haujlwm hauv Alloy
Hlau (Fe)	Tshuav	Base hlau
Chromium (Cr)	16.0 – 18.0	Corrosion kuj, hardness
Nickel (Ni)	3.5 – 5.5	Txhim kho corrosion kuj, stabilizes austenitic qauv
Manganese (Mn)	5.5 – 7.5	Hloov cov nickel, txhim kho lub zog thiab hardness
Cov pa roj carbon (C)	Tsawg dua los yog sib npaug li 0.15	Ua kom muaj zog, tuaj yeem txo qhov kev tiv thaiv corrosion yog tias ntau dhau
Nitrogen (N)	0.25 – 0.40	Txhim kho austenitic theem, txhim kho corrosion kuj
Silicon (Si)	Tsawg dua los yog sib npaug rau 1.0	Deoxidizer, txhim kho oxidation kuj
Phosphorus (P)	Tsawg dua los yog sib npaug li 0.06	impurity, feem ntau khaws cia kom tsis txhob brittleness
Sulfur (S)	Tsawg dua los yog sib npaug li 0.03	impurity, tuaj yeem ua rau kub tawg yog tias siab dhau

Cov ntsiab lus ntawm manganese ntau dua hauv 201 stainless hlau pab txo kev cia siab rau npib tsib xee, uas yog kim dua. Txawm li cas los xij, qhov kev hloov kho me ntsis cuam tshuam qee qhov kev tiv thaiv corrosion piv rau 304 stainless hlau, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig corrosive heev.