321/321H Stainless Hlau Phaj - Siab - Kub

Corrosion Resistance

Alloy 321 stainless hlau phaj nthuav tawm zoo dav dav corrosion tsis kam uas yog piv rau 304. Nws tau tsim los siv rau hauv chromium carbide nag lossis daus ntau ntawm 1800 - 1500 ° F (427 - 816 ° C) qhov twg un-stabilized alloys xws li 304 raug tawm tsam.

Cov hlau yuav siv tau rau hauv feem ntau diluted organic acids ntawm nruab nrab kub thiab nyob rau hauv cov ntshiab phosphoric acid nyob rau hauv qis kub thiab mus txog rau 10% diluted daws nyob rau hauv siab kub. Alloy 321 resists polythionic acid kev ntxhov siab corrosion tawg hauv kev pabcuam hydrocarbon. Nws tuaj yeem siv tau hauv cov tshuaj chloride lossis fluoride dawb caustic daws ntawm qhov kub thiab txias.

Alloy 321 stainless hlau phaj tsis ua tau zoo nyob rau hauv cov tshuaj chloride, txawm nyob rau hauv me me concentration, los yog nyob rau hauv sulfuric acid kev pab cuam.

 

Tshuaj ntsuam xyuas

Qhov hnyav % (tag nrho cov txiaj ntsig yog qhov siab tshaj plaws tshwj tsis yog tias muaj lwm yam qhia)

Element	321	321H
Chromium	17.00 – 19.00 dr hab.	17.00 – 19.00 dr hab.
Nickel	9.00-12.00 dr hab.	9.00-12.00 dr hab.
Cov pa roj carbon	0.08	0.04 min.-0.14 max.
Manganese	2.00	2.00
Phosphorus	0.045	0.045
Sulfur	0.03	0.03
Silicon	0.75	0.75
Titanium	5 x (C + N) min.-0.70 max.	4 x (C + N) min.-0.70 max.
Nitrogen	0.10	0.10
Hlau	Tshuav	Tshuav