Hastelloy C4 yog ib qho Minickel ntau yam - chromium - molybdenum alloy (tsis muaj N06455). Nws yog lub npe hu rau nws lub siab tsis tshua muaj cua sov - muaj thaj tsam cuam tshuam (Haz) rhiab. Qhov no alloy muaj cov qauv siv tau zoo, yog qhov yooj yim rau daim ntawv thiab weld, thiab muaj kev zam tshwj xeeb los ntxhov siab rau corroside cracking hauv chloside tawg hauv chloride cracking hauv chloside backing hauv chloside backing hauv chloside backing hauv chloside backing hauv chloside tawg hauv chloride. Nrog cov ntsiab lus chromium thiab molybdenum cov ntsiab lus, nws tuaj yeem tiv taus ob qho tib si oxidizing thiab tsis yog - oxidizing acids, thiab kev tawm tsam ntawm muaj cov tshuaj chlorides thiab lwm yam. Nws cov raug tshuaj lom neeg muaj pes tsawg kwv yees li 65% npib tsib, 16% molybdenum, 0.0% ntau tshaj plaws carbonium, 0.5% siab tshaj carbon, thiab 0.5% ntau tshaj tooj liab.
Cov khoom siv ntawm hastelloy c4 feem ntau tau teev tseg raws li tsis muaj N06455 hauv Tebchaws Asmeskas. Nyob rau hauv European txheem, nws yuav raug xa mus rau w.nr. 2.4610. Cov khoom lag luam uas cov alloy yog qhov yuav tsum tau ntsib, kom ua tau zoo nyob rau hauv ntau yam kev siv.
Tsis muaj ib qho tshwj xeeb "C4 corrosion txheem" hauv kev rho tawm. Txawm li cas los xij, haastelloy C4 yog tsim los ua kom tau raws li siab - ua haujlwm hauv corrosion - qhov yuav tsum tau ua. Nws tau ua tau zoo heev rau General corrosion, pitting, crevice corrosion, thiab kev nyuaj siab - corrosion cracking nyob rau hauv ib puag ncig ntau yam. Piv txwv li, nws tuaj yeem tiv thaiv kev xeb ntawm oxidizing acids xws li nitric acid, thiab txo cov kua qaub zoo li hydrochloric acid thiab sulfuric acid thiab sulfuric acid rau qee yam. Nws tseem qhia zoo corrosion tsis kam nyob rau hauv cov tub tshaj xov xwm uas muaj chlorides, xws li seawater thiab brine daws
Cov. Lub corrosion tsis kam ntawm hastelloy c4 tau ntsuas raws li kev corrosion - cov qauv kev sim xws li ASTM (pitting tsis kam, thiab kev ntxhov siab - corrosion cracking kev ntxim nyiam.
Tshuaj Muaj Tshuaj
: Hastelloy C4 contains about 65 - 70% nickel, 14 - 18% chromium, and 14 - 17% molybdenum, with no tungsten. Hastelloy C276 muaj kwv yees li {{% npib tsib xee,}}}}}}}}3 - 4.5% tungsten.
Corrosion Kuj
: Ob alloys muaj zoo corrosion tsis kam, tab sis lawv ua sib txawv ntawm ib puag ncig tshwj xeeb. C276 muaj kev cuam tshuam zoo dua hauv kev txo qis xws li cov roj ntsha hydrochloric acid, thaum C4 yog tiv taus ntau dua - oxidizing media. C276 muaj qhov muaj zog pitting - corrosion tsis kam nyob rau hauv chloride - muaj ib puag ncig ib puag ncig - thaum C4 tau zoo dua siab - kub oxidation tsis kam.
Cov Khoom Siv Neeg Kho Tshuab: C4 muaj lub zog ntau dua lub zog dua C276, lub ntsiab lus nws tuaj yeem tiv taus ntau dua ua ntej deformation. Ib qho ntxiv, C4 muaj qhov tseem ceeb tshaj li C276, uas tso cai rau nws tau tawm cov ntsuas kub siab dua ua ntej melting.
Hwj txwv: C4 yog qhov yooj yim rau kev siv Weld siv cov qauv txheem. Vim nws cov ntsiab lus muaj roj carbon ntau dua, C276 tsis yog tsim nyog rau vuam thiab yuav tsum muaj cov txuj ci tshwj xeeb rau kev ua.
Daim Ntawv Thov: C4 feem ntau yog siv nyob rau hauv qhov chaw siab - ib puag ncig kub xws li cov nroj tsuag hluav taws xob thiab cov nroj tsuag ua haujlwm. C276 feem ntau siv hauv kev lag luam tshuaj lom neeg thiab kev tso tsheb hlau luam vim nws qhov zoo corrosion tsis kam nyob rau hauv acidic ib puag ncig.
Tus nqi: Feem ntau, haastelloy c4 yog pheej yig dua c276 vim yog nws cov ntsiab lus txo cov roj carbon thiab yooj yim tsim.
