Alloy 904 (N08904) Stainless hlau yog lub siab alloy Austenitic cov khoom uas npaj siab rau siv nyob rau hauv cov kev mob hnyav. Nws muaj zoo tsis kam mus rau:
Pitting thiab crevice corrosion
Intergranular corrosion kuj
Kev nyuaj siab corrosion cracking
General corrosion
Qib 904L stainless hlau yog ib qho tsis-stabilized Austenitic stainless hlau nrog cov ntsiab lus muaj roj carbon tsawg. Qhov loj coloy stainless hlau tau ntxiv tooj liab los txhim kho nws txoj kev tiv thaiv kom muaj zog txo cov kua qaub, xws li sulfuric acid. Cov hlau kuj tseem tiv taus kev ntxhov siab corrosion tawg thiab kev sib tsoo corrosion. Qib 904L stainless hlau tsis yog sib nqus, thiab muaj cov khoom sib nqus zoo, kev nruj thiab weldability thiab weldability. Qib 904L muaj cov nyiaj uas kim heev, xws li molybdenum thiab npib tsib xee. Niaj hnub no, feem ntau ntawm cov ntawv thov uas ua haujlwm qib 904L tau hloov los ntawm cov nqi qis-duplex stainless hlau 2205.
Qib 904L stainless hlau muaj kev tiv thaiv zoo rau cov dej hiav txwv sov thiab cov tshuaj chloride nres. Lub siab tsis kam ntawm qib 904L tiv thaiv kev ntxhov siab corrosion tawg yog vim muaj cov nyiaj npib tsib xee ntau hauv nws cov muaj pes tsawg leeg. Tsis tas li ntawd, qhov sib ntxiv ntawm tooj liab rau cov qib no txhim kho kev tiv thaiv sulfuric acid thiab lwm yam kev txo qis hauv ob qho tib si txhoj puab heev thiab mob me.
Kev tiv thaiv corrosion ntawm qib 904L yog nruab nrab ntawm cov qib super austenitic, nrog 6% molybdenum cov ntsiab lus, thiab cov qauv 316L austenitic qib. Qib 904L tsis tshua tiv taus nitric acid dua li qib 304L thiab 310L, uas tsis muaj molybdenum. Cov qib steel no yuav tsum tau muab tshuaj kho tom qab ua haujlwm txias, kom ua tiav qhov siab tshaj plaws corrosion cracking kuj nyob rau hauv ib puag ncig tseem ceeb.
Cov Ntawv Thov
Alloy 904 & 904L (N08904) stainless hlau yeeb nkab, fittings thiab flanges yog siv nyob rau hauv kev lag luam tshuaj los ua cov tshuaj corrosive xws li: Acetic acid, Acetylene, Acrylates, Acrylonitrile, Aluminium sulfate, Ammonium phosphate, Ammonium sulfate, roj teeb acid, Benzene. Butyl acetate, Caprolactum, Cellophane, Citric acid, Nitrophosphate, oxalic acid, superphosphate, siab roj, Tartaric acid, Uranium oxide thiab zinc sulfate.
Cim npe nrov: alloy 904l (n08904) stainless hlau siab alloy austenitic stainless hlau npaj rau siv nyob rau hauv hnyav corrosive tej yam kev mob., Tuam Tshoj alloy 904l (n08904) stainless hlau siab alloy austenitic stainless hlau npaj rau siv nyob rau hauv hnyav corrosive tej yam kev mob. manufacturers, lwm tus neeg, Hoobkas
