Cov khoom siv twg yog 1.4112?cov
1.4112 stainless hlau, tseem hu ua AISI 440B thiab X90CrMoV18, yog cov pa roj carbon martensitic chromium siab. Qhov no stainless hlau tseem hu ua cutlery steel; Cov khoom siv yog sib nqus thiab muaj cov hardness siab heev thiab hnav tsis kam, nrog rau zoo corrosion kuj. Cov khoom siv no tseem siv tau rau hauv kev lag luam twj tso kua mis, cov cuab yeej tsim khoom, kev tsim cov khoom siv hluav taws xob thiab kev tsim khoom siv rau kev lag luam khoom noj. Cov hlau stainless no tsis haum rau kev sib sau txias lossis kos duab txias.
Dab tsi yog 1.4112 stainless hlau sib npaug?cov
1.4112 stainless hlau yog sib npaug rau AISI 440B thiab X90CrMoV18 raws li EN cov qauv. Nws yog martensitic chromium stainless hlau, nrog siab hardness thiab hnav tsis kam, nrog zoo polishing muaj peev xwm, feem ntau siv rau riam, phais cov cuab yeej thiab hauv kev lag luam khoom noj khoom haus vim nws zoo heev ntug tuav thiab corrosion kuj nyob rau hauv tsawg nruj ib puag ncig.
Sib npaug ntawm cov khoom siv X90CrMoV18cov
X90CrMoV18 yog European Standard (EN) tsim rau lub siab carbon martensitic stainless hlau. Nws qhov sib npaug tseem ceeb yog AISI 440B (lossis UNS S44003), tseem hu ua qib 1.4112 hauv German tus qauv. Lwm cov qib steel muaj xws li AISI 440C (cov pa roj ntau dua) thiab AISI 440A (cov pa qis dua), thiab cov khoom ntawm X90CrMoV18 poob ntawm ob qho no, qhia cov yam ntxwv sib npaug.
Tshuaj muaj pes tsawg leeg ntawm 1.4112 (%)cov
Mechanical zog ntawm 1.4112 stainless hlaucov
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Ntau dua lossis sib npaug li 600 MPa
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Ntau dua lossis sib npaug li 12%
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Kev cuam tshuam toughness (Charpy)
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Ntau dua lossis sib npaug li 30 J ntawm -20 degree
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~ 200 MPa (nws txawv nyob ntawm tus txheej txheem)
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Kev kho cua sov ntawm 1.4112 stainless hlaucov
Annealing: 440B stainless hlau yog annealed rau 843-871 degrees (1550-1600 degrees F) thiab ces quenched heev maj mam nyob rau hauv lub cub tawg.
Hardening: 440B stainless hlau yog rhuab mus rau 760℃(1400℃F), tuav ntawm 1010℃(1850℃F) thiab thaum kawg quenched nyob rau hauv roj los yog cua.
Tempering: 440B stainless hlau yog tempered ntawm 148℃(300℃F) rau cov khoom siab tshaj plaws thiab qhov siab tshaj plaws hardness uas tuaj yeem ua tiav yog RC58.
440A vs . 440B vs . 440C stainless hlaucov
440A, 440B thiab 440C yog tag nrho cov martensitic stainless hlau, sib txawv hauv lawv cov ntsiab lus carbon. 440C muaj cov ntsiab lus carbon siab tshaj plaws, ua rau lub siab tshaj plaws hardness thiab hnav tsis kam (zoo tagnrho rau high-end bearings thiab cov riam muaj zog), thaum 440A muaj cov ntsiab lus qis tshaj plaws, muab qhov zoo tshaj plaws corrosion kuj thiab toughness (tsim rau cov riam dhia). 440B muaj cov ntsiab lus nruab nrab ntawm cov pa roj carbon monoxide thiab feem ntau yog siv rau kev txiav cov cuab yeej siv dav dav thiab cov riam hauv chav ua noj uas qhov hnyav yog qhov tseem ceeb.
GNEE tam sim no khaws 440A, 440B thiab 440C stainless hlau, suav nrog: daim hlau, ntawv, coils, strips, raj, tuav thiab xaim. Tsis tas li ntawd, peb muab ntau yam ntawm qhov chaw tiav rau koj xaiv, xws li: No.1, 2B, 2D, BA, No.3, No.4, HL, No.8, sandblasted, thiab lwm yam.
Peb lav 100% zoo. Peb yuav tsis xa cov khoom tsis raug rau peb cov neeg siv khoom. Thov koj xav tiv tauj peb kom kho cov khoom tsim nyog, suav nrog cov duab, qhov xwm txheej, kev kho deg thiab kev ua haujlwm.
