Dab tsi yog qhov sib txawv ntawm unsist s31254 thiab SS316?
Sep 04, 2025
Tso lus
Dab tsi tsis yog S31254 stainless hlau phaj?
Cov khoom siv S31254 yog sib npaug rau lub npe lag luam 254 smo (tseem hu ua 254 SMO (Alloy 254, thiab European Txheem Khoom Cov lej 1.4547. Nws yog "Super" Austenitic Stainless hlau paub txog nws cov lus zoo tshaj plaws rau pittings, tshwj xeeb tshaj yog nyob rau hauv chloride {}} Cov pej xeem ib puag ncig zoo li dej hiav txwv.
Dab tsi yog SS316 stainless hlau phaj?
SS316 Stainless hlau phaj yog ib qho kev sib txawv ntawm cov molybdenum, nws yog weldabes ib puag ncig, thiab tsis {{4 4}} sib sib zog nqus cov yam ntxwv hauv lub anealeed mob. Nws yog siv nyob rau hauv ib puag ncig muaj kev puas tsuaj xws li kev ua khoom noj, khoom siv tshuaj lom neeg, cov ntawv thov marrine, thiab kev cog lus tshuaj tiv thaiv kev mob, thiab kev cog lus tshuaj tiv thaiv kev mob, thiab kev cog lus tshuaj tiv thaiv kev mob, thiab kev cog lus tshuaj tiv thaiv mob
Unc unn unic s31254 vs. SS316: Qhov sib txawv
254 SMO Stainless Hlau, tseem muaj 6% Molybdenum, 20% Chromium, thiab 0.20% Chromium, 10-14% npib tsib caug%, thiab 2-3% molybdenum.
1. Tshuaj lom neeg sib xyaw (% los ntawm qhov hnyav)
| Lub ntsiab | UN tsis muaj S31254 (6MO Super Duplex) | SS316 (AISI 316 / 1.4401) |
|---|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.03 | Tsawg dua los yog sib npaug rau 0.08 |
| Manganese (mn) | Tsawg dua los yog sib npaug rau 2.00 | Tsawg dua los yog sib npaug rau 2.00 |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.045 | Tsawg dua los yog sib npaug rau 0.045 |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.03 | Tsawg dua los yog sib npaug rau 0.03 |
| Silicon (si) | Tsawg dua los yog sib npaug rau 0.80 | Tsawg dua los yog sib npaug rau 1.00 |
| Chromium (cr) | 20 – 22 | 16 – 18 |
| Npib tsib caug (ni) | 12 – 15 | 10 – 14 |
| Molybdenum (mo) | 6 – 6.5 | 2 – 3 |
| Nitrogen (n) | 0.20 – 0.30 | Tsawg dua los yog sib npaug rau 0.10 |
| Hlau (FE) | Seem | Seem |
Cov Khoom Siv Neeg Kho Tshuab
| Ntiag tug | S31254 | SS316 |
|---|---|---|
| Lub zog tensile | 800 - 1000 MPa | 515 - 700 MPa |
| Tawm Zog (0.2% offset) | 450 - 650 MPA | 205 - 310 MPA |
| Elongation | 25 – 35% | 40% |
| Kev nyuaj | 250 - 300 HB | 170 - 200 HB |
| Kev Cuam Tshuam | 80 – 100 J | 100 j (kwv yees.) |
Corrosion Kuj:
254 Smo Stainless Hlau yog paub rau nws cov kev zam corrosion tsis kam nyob rau hauv ib puag ncig hnyav, xws li dej hiav txwv thiab acidic daws. Nws tau ntau dua rau pitting thiab crevice corrosion tshaj 316 stainless hlau {3}, tshwj xeeb yog nyob rau hauv chloride - muaj ib puag ncig.
Lub zog thiab tawv:
254 Smo Stainless Hlau Muaj Zog Zog thiab Ntau Tshaj Tawm - Tsis kam tshaj 316 Stainless Hlau. Nws kuj tau nce siab dua thiab kev tawv ntawm qhov kub tsawg.
Weldability:
Ob 254 smoo stainless hlau thiab 314 smort siv weldable welding - bead thaj tsam (haz) tawg.
Cov Ntawv Thov:
254 Smo Stainless Hlau yog siv nyob rau hauv ntau yam tshuaj lom neeg muaj kev lag luam, thiab cov ntawv luam yeeb, xws li cov khoom noj thiab dej haus, thiab khoom siv marrine.
S31254 thiab SS316 stainless hlau los ua tiav siv cov cuab yeej tsim ua kom paub tseeb thiab muaj txiaj ntsig zoo nyob rau hauv txhua txhua daim ntawv. Siv cov cuab yeej siv tau zoo xws li laser txiav, CNC xuas nrig ntaus tshuab, lub Hoobkas muaj peev xwm ua tau ntau cov qauv thoob ntiaj teb xws li ASTM A240. Txhua lub batch undergoes txoj kev ua tau zoo ua ntej kev xa khoom, ua kom pom tseeb, kom ntseeg tau tias cov khoom lag luam tau raws cov neeg siv khoom.
Xa kev nug