Alloy 904L • UNS N08904 • WNR 1.4539

UNS NO8904, feem ntau hu ua 904L, yog ib qho tsis tshua muaj carbon siab alloy austenitic stainless hlau uas yog dav siv nyob rau hauv cov ntaub ntawv uas cov khoom corrosion ntawm AISI 316L thiab AISI 317L tsis txaus.

Qhov sib ntxiv ntawm tooj liab rau qib no muab nws cov khoom tiv thaiv corrosion zoo dua li cov pa chrome nickel stainless hlau, tshwj xeeb tshaj yog rau sulfuric, phosphoric thiab acetic acids. Txawm li cas los xij, muaj kev txwv siv nrog hydrochloric acids. Nws kuj muaj kev tiv thaiv siab rau pitting hauv cov tshuaj chloride, muaj kev tiv thaiv siab rau ob qho tib si crevice thiab kev ntxhov siab corrosion tawg. Alloy 904L ua tau zoo dua li lwm cov austenitic stainless hlau vim yog cov alloying ntau dua ntawm nickel thiab molybdenum.