AISI 321 Stainless Hlau Khoom
Tso lus
AISI 321 Stainless Hlau Khoom: Kev kub siab tsis kam thiab corrosion tiv taus
1. Tshuaj lom neeg sib xyaw
| Lub ntsiab | Cov ntsiab lus ntau | Qhov tseem ceeb lub luag haujlwm |
|---|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0. 08% | Tsawg-carbon tsim teeb txo cov kev pheej hmoo nyob rau hauv kev pheej hmoo corrosion |
| Chromium (cr) | 17.0–19.0% | Ua cov txheej oxide tiv thaiv rau corrosion tsis kam |
| Npib tsib caug (ni) | 9.0–12.0% | Txhab nyiaj txiag rau cov qauv Austenic thiab txhim kho kev nruj |
| Titanium (ti) | 0.40–0.70% | Cov ntawv cog lus nrog cov pa roj carbon los tiv thaiv carbide nag lossis daus thaum lub sij hawm vuam |
| Lwm tus | Mn tsawg dua los yog sib npaug rau 2. {{}}}}}}}}}} {4}}. 03% | Kev tswj hwm impurities rau kev ua kom zoo dua |
AISI 321 Stainless Hlau Khoom
(1) Kev ua haujlwm siab kub
Oxidation tiv thaiv: haum rau kev siv mus ntev txog 870 degree thiab luv luv raug rau 980 degree.
Carburization Kuj: Titanium minimizes minimizes carbide tsim, tswj cov qoob loo qoob loo muaj zog ntawm lub zog kub.
(2) corrosion tsis kam
Intergranular Corrosion: Titanium Stetilizes Carbon, khaws cia Chromium cov khoom tiv thaiv tom qab-vuam.
General corrosion: piv rau 304 stainless hlau, oxupforming ferritic qib zoo li 430.
(3) Cov Khoom Siv Neeg Kho Tshuab
| Yam tseem ceeb | Lub zog tensile | Paib lub zog | Elongation | Kev nyuaj |
|---|---|---|---|---|
| Siv annealed | 480-690 MPA (70-100 KSI) | Ntau dua los yog sib npaug rau 170 MPa (25 ksi) | Ntau dua los yog sib npaug rau 40% | Tsawg dua los yog sib npaug 255 hb |
(4) Weldability & Machinability
Vuam: Tsis muaj kev kho kom sov-Weld-Weld yuav tsum tau vim titanium carbide-inhibiting effect.
Txias tsim: Zoo formability nrog kev ua haujlwm hnyav ua haujlwm.
Kub Kub tiv taus Stainless Hlau 321 Kev Siv
Aerospace: kev ua kom sov tshuab, kev sib pauv hluav taws xob (11,645 specifications specifications).
Zog & Petrochemical: High-kub reactors, cub taws ua si.
Khoom Noj & Kws Tshuaj: Welded cov khoom uas yuav tsum tau corrosion tsis kam.
321 stainless hlau vs 304
| Teem nqi | Ntsiab lus distintion | Cov Ntaub Ntawv Zoo Tshaj |
|---|---|---|
| 304 | Tsis muaj titanium; nquag rau corrosion tom qab vuam | Tsis-welded, tsis yog-chaw tseem ceeb |
| 316 | Muaj molybdenum rau pitting resistance | Chloride-nplua nuj lossis chaw nres nkoj ib puag ncig |
| 430 | Ferritic, npib tsib xee; qis tus nqi tab sis tsawg kub tiv | Hniav lossis tsawg-qhov kub |
Cov Khoom Siv Gnee 5510 Cov Lus Qhia Tshwj Xeeb
