Stainless hlau 1.4547 vs 1.4462
EN 1.4547 stands rau nws superior corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv ib tug nruj heev puag ncig, ua rau nws zoo tagnrho rau cov feem ntau thov. EN 1.4462, thaum tseem tiv taus corrosion, feem ntau yog siv nyob rau hauv nruab nrab corrosive ib puag ncig uas nws cov khoom siv zoo heev thiab zoo weldability muaj nuj nqis heev.
EN 1.4547 stainless hlau (UNS S31254 / 254SMO)
Tshuaj muaj pes tsawg leeg:
- Cov ntsiab lus siab molybdenum (6%)
- Ntau dua nickel ({0}}%) thiab chromium (19-20%) cov ntsiab lus
- Ntxiv nitrogen ({{0}}}18-0.22%) thiab tooj liab (0.5-1.0%)
Cov khoom tseem ceeb:
- Corrosion Resistance: Exceptionally siab,ASTM A240 Hom 2205 Phajtshwj xeeb tshaj yog tiv thaiv chloride-induced stress corrosion cracking, pitting, thiab crevice corrosion. Haum rau qhov chaw hnyav, xws li kev siv dej hiav txwv.
- Strength thiab Toughness: Siab zog tawm los piv rau cov qib austenitic. Tuav zoo heev toughness ntawm ob qho tib si siab thiab qis kub.
- Weldability: Zoo, tab sis yuav tsum muaj cov txheej txheem tshwj xeeb kom tsis txhob kub tawg thiab tswj kev tiv thaiv corrosion.
EN 1.4462 stainless hlau (UNS S31803 / S32205)
Tshuaj muaj pes tsawg leeg:
- Cov ntsiab lus molybdenum nruab nrab (3-3.5%)
- Nickel (4.5-6.5%) thiab chromium ({3}}%) cov ntsiab lus
- Nitrogen (0.08-0.2%) rau ntxiv zog
Cov khoom tseem ceeb:
- Corrosion Resistance: Zoo, muaj kev tiv thaiv zoo heev rau kev ntxhov siab corrosion cracking, pitting, thiab crevice corrosion nyob rau hauv ib puag ncig nruj heev. Tsis resistant li254 SMO stainless hlau phajnyob rau hauv cov mob corrosive heev.
- Strength thiab Toughness: High yield zog, yuav luag ob npaug ntawm cov pa austenitic stainless hlau. Zoo toughness, txawm me ntsis tsawg dua6MO UNS S31254, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias heev.
- Weldability: Zoo heev, tsis tshua muaj kev pheej hmoo ntawm kub tawg piv rau qib siab alloyed. Cov txheej txheem vuam siv tau tuaj yeem siv tau.
Yuav ua li cas xaiv: 1.4547 vs 1.4462 ?
Rau cov ntawv thov cuam tshuam nrog cov xwm txheej hnyav, xws li dej hiav txwv raug dej lossis kev ua tshuaj lom neeg nrog cov tshuaj corrosive, EN 1.4547 yog qhov kev xaiv zoo dua. Hauv qhov sib piv, rau cov ntawv thov uas xav tau lub zog siab thiab ua haujlwm ntev hauv qhov chaw tsis tshua muaj siab, EN 1.4462 feem ntau nyiam vim nws qhov txiaj ntsig zoo thiab kev ua haujlwm txaus.
