201 stainless hlau yog 200 series austenitic stainless hlau tsim los ntawm kev hloov manganese, nitrogen thiab lwm yam khoom nrog npib tsib xee. Nws muaj kev ua haujlwm zoo corrosion thiab kub thiab txias ua haujlwm, uas yog txaus los hloov cov khoom siv sab hauv tsev, hauv nroog thiab sab nraum zoov. 304 stainless hlau khoom siv nyob rau hauv tsawg corrosive ib puag ncig.
Vim tias tus nqi ntawm npib tsib xee txuas ntxiv hloov pauv, ntau tus neeg tsim khoom tab tom nrhiav lwm yam khoom ntawm austenitic stainless hlau nrog cov haujlwm zoo sib xws rau 304 stainless hlau. Thaum xyoo 1930s, thawj chromium-manganese austenitic stainless hlau tau tsim, thiab manganese hauv hlau hloov qee cov npib tsib xee. Tom qab ntawd, kev tshawb fawb ntxiv tau ua tiav ntawm cov ncauj lus kom ntxaws qhia, nitrogen thiab tooj liab tau siv, thiab cov ntsiab lus xws li carbon thiab sulfur, uas cuam tshuam rau cov ntaub ntawv muaj nuj nqi, thiab lwm yam, thaum kawg ua rau 200 series muaj.
Tam sim no, cov hom tseem ceeb ntawm 200 series stainless hlau yog: J1, J3, J4, 201, 202. Kuj tseem muaj 200 qib steel uas muaj kev tswj qis ntawm cov ntsiab lus nickel. Raws li rau 201C, nws yog 201 stainless hlau txuas ntxiv qib steel tsim los ntawm ib leeg steel cog hauv Suav teb nyob rau lub sijhawm tom qab. Lub teb chaws tus qauv lag luam ntawm 201 yog: 1Cr17Mn6Ni5N. 201C txuas ntxiv raws li 201 Txo cov ntsiab lus nickel thiab ntxiv cov ntsiab lus manganese.
201 stainless hlau siv
Vim hais tias 201 stainless hlau muaj cov yam ntxwv ntawm acid tsis kam, alkali tsis kam, siab ceev, polishing tsis muaj npuas, thiab tsis muaj pinholes, nws yog heev haum rau tsim ntau yam ntaub ntawv thiab pluaj hauv qab npog, thiab ntau lwm tus yog siv rau kho kom zoo nkauj kav dej, Qee qhov ntiav ntiav. cov khoom lag luam rau cov kav dej.
201 stainless hlau tshuaj muaj pes tsawg leeg
Cov ntsiab lus ntawm 201 stainless hlau phaj muaj manganese thiab nitrogen es tsis txhob ntawm ib co los yog tag nrho cov nickel keeb. Vim tias nws tuaj yeem tsim cov ntsiab lus qis nickel thiab cov ferrite tsis sib npaug, cov ntsiab lus ferrochrome hauv 200 series stainless hlau raug txo mus rau 15% -16%, Qee qhov xwm txheej tau poob mus rau 13% -14%, yog li corrosion kuj ntawm 200 series stainless. hlau tsis tuaj yeem muab piv nrog 304 lossis lwm yam hlau tsis zoo sib xws. Tsis tas li ntawd, nyob rau hauv acidic tej yam kev mob uas muaj nyob rau hauv lub corroded qhov chaw ntawm lub tsub zuj zuj ntawm cheeb tsam thiab qhov sib txawv, cov nyhuv ntawm manganese thiab tooj liab yuav raug txo thiab cov nyhuv ntawm re-passivation nyob rau hauv tej yam kev mob. Qhov kev puas tsuaj ntawm chromium-manganese stainless hlau nyob rau hauv cov xwm txheej no yog li 10-100 npaug ntawm 304 stainless hlau. Thiab vim hais tias hauv kev xyaum ntau lawm tsis tuaj yeem tswj xyuas qhov seem ntawm cov sulfur thiab carbon cov ntsiab lus hauv cov hlau no, cov ntaub ntawv tsis tuaj yeem taug qab thiab taug qab, txawm tias cov ntaub ntawv rov qab los. Yog li yog tias nws tsis tau hais tias lawv yog cov chromium-manganese steels, lawv yuav dhau los ua cov khoom siv phom sij txaus ntshai heev, uas yuav ua rau cov casting muaj cov ntsiab lus siab manganese uas tau npaj txhij txog. Yog li ntawd, cov hlau tsis muaj steel thiab 300 series stainless hlau yuav tsum tsis txhob muab hloov lossis pauv. Qhov ob yog kiag li nyob rau tib theem nyob rau hauv cov nqe lus ntawm corrosion kuj.
Post lub sij hawm: Jan-19-2020