1.4541 Stainless hlau yog dab tsi?
Mar 11, 2026
Tso lus
1.4541 stainless hlau, feem ntau hu ua 321 lossis UNS S32100, yog titanium-stabilized austenitic stainless hlau. Qhov sib ntxiv ntawm titanium tiv thaiv chromium carbide tsim ntawm cov ciam teb nplej thaum raug kub hnyiab, muab kev tiv thaiv zoo rau intergranular corrosion. Qhov no ua rau nws tshwj xeeb tshaj yog rau cov ntawv thov uas muaj vuam lossis kev pabcuam hauv qhov kub thiab txias ntawm 450-850 degree, xws li cov tshuab cua tshuab, cua sov, thiab cov pob qij txha nthuav dav.
Cov qib ruaj khov no yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.
| Txuj | Qib sib npaug |
|---|---|
| EN (Tebchaws Europe) | 1.4541 |
| ASTM / AISI (USA) | 321, UAS S32100 |
| JIS (Nyiv) | SUS 321 |
| KS (Korea) | STS 321 |
Titanium yog ntxiv ntawm kwv yees li tsib npaug ntawm cov ntsiab lus ntawm cov pa roj carbon monoxide kom ua tiav kev ruaj khov.
| Element | C | Si | Mn | P | S | Cr | Ni | Ti |
|---|---|---|---|---|---|---|---|---|
| Cov ntsiab lus (%) | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 2.0 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.03 | 17.0 - 19.0 | 9.0 - 12.0 | Ntau dua lossis sib npaug li 5xC |
Nws tuav cov khoom zoo txhua yam thoob plaws qhov kub thiab txias.
| Khoom | Yield zog (Rp0.2) | Tensile zog (Rm) | Elongation (A) | Hardness (HB) |
|---|---|---|---|---|
| Tus nqi | Ntau dua lossis sib npaug li 205 MPa | 500 - 750 MPa | Ntau dua lossis sib npaug li 40% | Tsawg dua lossis sib npaug li 215 |
Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4541 / 321
Intergranular Corrosion kuj:Titanium khi nrog carbon nyiam, tiv thaiv chromium depletion ntawm cov ciam teb nplej thiab muab kev tiv thaiv nyob rau hauv qhov kub thiab txias (450-850 degree).
Zoo Siab -Tsub Muaj Zog:Tuav oxidation tsis kam thiab lub zog ntawm qhov kub siab, haum rau kev siv tsis tu ncua txog li 900℃thiab siv tas li mus txog 850 degree.
Zoo heev Formability thiab Weldability:Muaj cov ductility zoo thiab tuaj yeem welded los ntawm txhua txoj hauv kev yam tsis tas yuav tsum tau ua tom qab -weld heat treatment hauv ntau daim ntawv thov.
Cov ntawv thov tseem ceeb:
Aerospace:Lub dav hlau lub cav tso tawm Cheebtsam, afterburner qhov chaw, thiab thermal shields.
Thaum tshav kub kub ua:Kub exchanger tubing, rauv qhov chaw, thermocouple sheaths.
Kev lag luam tshuaj:Cov nkoj thiab cov kav dej raug rau cov xov xwm corrosive ntawm qhov kub siab.
Automotive:Exhaust systems, catalytic converter vaj tsev.
Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev siv 321 (1.4541) tshaj 304 (1.4301) rau kev siv vuam?
Lub ntsiab kom zoo dua yog nws tsis kam mus rau rhiab heev. Thaum tus qauv 304 yog welded, tshav kub- thaj tsam cuam tshuam tuaj yeem ntsib chromium carbide nag lossis daus, ua rau chromium depletion ntawm cov ciam teb nplej thiab ua rau cov khoom raug cuam tshuam rau intergranular corrosion. Lub titanium nyob rau hauv 321 cov ntaub ntawv ruaj khov titanium carbides es tsis txhob, tawm hauv chromium nyob rau hauv cov khoom tov kom muaj corrosion kuj. Qhov no ua rau 321 superior rau welded sib dhos uas tsis tuaj yeem post-weld annealed.
Dab tsi yog qhov txawv ntawm 321 thiab 321H stainless hlau?
321H (1.4878) yog qhov siab -carbon variant ntawm 321, nrog cov tswj cov ntsiab lus ntawm 0.04-0.10%. Cov ntsiab lus carbon siab dua no muab kev txhim kho kev nkag siab thiab kev ntxhov siab rupture tsis kam ntawm qhov kub siab tshaj 500℃. 321H yog tshwj xeeb tsim rau siab -kub cov qauv siv hauv cov hlab ntsha siab xws li ASME, qhov uas tau lees paub cov ntsiab lus carbon tsawg kawg ua kom paub tseeb txog kev ua haujlwm ntev -. Standard 321 yog qhov tsim nyog rau kev siv dav dav - lub hom phiaj cov ntawv thov uas qhov kub thiab txias tsis tshua muaj zog.
Nrhiav kev ntseeg siab ntawm 1.4541 / 321 Stainless Hlau?
GNEE Steel muab siab -zoo 321 (1.4541) stainless hlau nyob rau hauv ntau yam ntaub ntawv xws li daim hlau, nplooj ntawv, kav, raj, tuav, thiab fittings, npaj rau siab - kub thiab corrosion- daim ntaub ntawv resistant. Peb ua kom tag nrho cov ntaub ntawv traceability nrog cov ntawv pov thawj kom raug thiab muab kev pabcuam ua tiav. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.
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