Stainless hlau kauj 904L

Super austenitic stainless hlau 904L (00Cr20Ni25Mo4.5Cu;

UNS: N08904;

EN: 1.4539) yog cov pa roj carbon tsawg, siab-alloy austenitic stainless hlau nrog zoo corrosion kuj nyob rau hauv dilute sulfuric acid. Nws yog tsim rau hnyav corrosion tej yam kev mob.

Muaj cov ntsiab lus chromium siab thiab ntau cov ntsiab lus npib tsib xee, qhov sib ntxiv ntawm tooj liab ua rau nws muaj peev xwm tiv taus cov kua qaub, tshwj xeeb tshaj yog rau cov tshuaj chloride clearance corrosion thiab kev nyuaj siab corrosion cracking yog heev resistant, tsis yooj yim rau tshwm sim, yaig thiab tawg pitting kuj me ntsis zoo dua. lwm qib steel, zoo machinability thiab weldability, tuaj yeem siv rau cov hlab ntsha siab.

Txij li thaum cov ntsiab lus carbon ntawm 904L tsawg heev (Max. 0.020%), yuav tsis muaj carbide nag lossis daus thaum lub sijhawm kho cua sov thiab vuam.

Qhov no tshem tawm txoj kev pheej hmoo ntawm intergranular corrosion uas ib txwm tshwm sim tom qab kev kho cua sov thiab vuam.

Vim lub siab chromium, npib tsib xee, molybdenum cov ntsiab lus thiab qhov sib ntxiv ntawm tooj liab, 904L tuaj yeem passivated txawm nyob rau hauv kev txo qis, xws li sulfuric acid thiab formic acid.

Cov ntsiab lus siab nickel ua rau nws muaj qhov tsis tshua muaj corrosion hauv lub xeev nquag.

Nyob rau hauv qhov concentration ntau ntawm 0 mus rau 98% ntshiab sulfuric acid, 904L tuaj yeem siv rau ntawm qhov kub txog li 40 degrees Celsius.

Nws cov corrosion kuj zoo heev nyob rau hauv ntshiab phosphoric acid nyob rau hauv lub concentration ntau ntawm 0 ~ 85%.

Hauv kev lag luam phosphoric acid uas tsim los ntawm cov txheej txheem ntub dej, impurity muaj zog tiv thaiv corrosion.

Ntawm tag nrho cov phosphoric acids, 904L muaj superior corrosion kuj zoo tib yam stainless hlau.

Nyob rau hauv oxidizing nitric acid heev, 904L muaj qhov tsis zoo corrosion kuj piv rau cov hlau alloyed uas tsis muaj molybdenum.

Hauv hydrochloric acid, kev siv 904L tsuas yog txo qis ntawm 1-2%.

Nws yog nyob rau hauv no concentration ntau.

Lub corrosion kuj ntawm 904L yog zoo dua li cov pa stainless hlau.

904L steel muaj siab ua haujlwm rau pitting corrosion.

Nws kuj muaj qhov zoo heev crevice corrosion kuj hauv cov tshuaj chloride.

Cov ntsiab lus npib tsib xee siab ntawm 904L txo tus nqi corrosion hauv pits thiab crevices.

Ordinary austenitic stainless hlau tej zaum yuav rhiab heev rau kev ntxhov siab corrosion ntawm qhov kub siab tshaj 60 degree C nyob rau hauv ib puag ncig chloride-nplua nuj, thiab qhov rhiab heev no tuaj yeem raug txo los ntawm kev ua kom cov nickel cov ntsiab lus ntawm stainless hlau.

Vim nws cov ntsiab lus npib tsib xee siab, 904L yog qhov muaj zog heev rau kev ntxhov siab corrosion tawg hauv cov tshuaj chloride, cov ntsiab lus hydroxide thiab hydrogen sulphide-nplua nuj ib puag ncig.

Stainless hlau 904L Chemical Comppsition:

Alloy thiab lub xeev: 926,

Tensile zog (Rm N / mm2): 490

Yield zog (RP{0}}.2N/mm2): 216,

Elongation A5%: 35.

Qhov ceev: 8.24 g / cm3

FAQ

Q: Koj lub sijhawm xa khoom ntev npaum li cas?
A: Nws yog raws li qhov ntau. Feem ntau nws yog 30 hnub.

Q: Koj puas tuaj yeem muab cov qauv rau peb, puas yog dawb lossis xav tau them?
A: Yog tias koj tsis tas yuav luam koj lub logo lossis lwm cov duab kos rau ntawm cov khoom, peb yuav tsis them tus nqi, tsuas yog qhia rau peb koj cov khoom thauj khoom xws li Fedex, DHL, TNT. Yog tias koj tsis muaj, peb yuav tsum tau them tus nqi Express kom raug.

Q: Kuv puas tuaj yeem tau txais koj tus nqi zoo tshaj?

A: Peb lub hom phiaj yog los muab koj tus nqi zoo tshaj plaws nrog kev ua haujlwm zoo hauv kev ua haujlwm ntev. Thov tso koj cov ntaub ntawv tiv toj rau cov lus hais zoo tshaj plaws, peb yuav rov qab rau koj nrog cov kev daws teeb meem zoo tshaj plaws sai li sai tau.

Cim npe nrov: Stainless hlau kauj 904l, Tuam Tshoj stainless hlau kauj 904l lwm tus neeg