SUS316 Corrosion Resistance Test Standard
Dec 03, 2025
Tso lus
SUS316 stainless hlau yog ib qho ntawm feem ntau siv corrosion- qib resistant hauv cov khoom siv tshuaj, cov khoom siv hauv hiav txwv, thiab zaub mov- cov txheej txheem ua haujlwm. Paub txog nws 2-3% molybdenum (Mo) cov ntsiab lus, SUS316 muaj zog tiv thaiv chloride pitting, crevice corrosion, thiab acid raug tshaj SUS304.
Rau qhov zoo- cov neeg yuav khoom tseem ceeb, kev nkag siab txog cov qauv ntsuas kev tiv thaiv corrosion yog qhov tseem ceeb los ntsuas cov khoom lag luam kev ntseeg siab, tus neeg muag khoom muaj peev xwm, thiab ntev - lub sij hawm ua neej nyob.
Dab tsi yog Cov Txheej Txheem Kev Tiv Thaiv Corrosion Test rau SUS316?
① ASTM A262 - Intergranular Corrosion Test (IGC)
Siv los ntsuas qhov tsis kam ntawm SUS316 rau intergranular nres.
Xyaum E (Strauss Test) feem ntau yog siv rau welded SUS316 kav thiab nplooj ntawv.
SUS316 feem ntau dhau IGC kev xeem vim nws tswj cov pa roj carbon (<0.08%) and Mo content.
② ASTM G48 - Pitting thiab Crevice Corrosion Test
Txoj Kev A yog tus qauv kev lag luam rau kev sim cov hlau tsis muaj chloride ib puag ncig.
SUS316 feem ntau tiv taus 22-28℃hauv ferric chloride tov yam tsis muaj pitting.
Mo cov ntsiab lus siab dua txhim kho kev tiv thaiv.
③ ASTM B117 - Tshuaj tsuag ntsev
Siv los ntsuam xyuas dav atmospheric corrosion kuj.
SUS316 tuaj yeem tiv taus ntau dua 500-1500 teev ntawm cov tshuaj tsw qab ntsev (NSS), nyob ntawm qhov chaw tiav.
④ ISO 3651-2 - Kev Ntsuas Kub Kub Kub
Ib qho tseem ceeb rau SUS316 siv nyob rau hauv tshav kub- exchanger, boiler, los yog marine daim ntaub ntawv.
⑤ ASTM A240 Khoom Txheem
Qhia meej txog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov kev cai chromium / molybdenum kom ntseeg tau tias kev ua haujlwm corrosion kuj.
SUS316 Chemical Composition thiab Nws cuam tshuam rau Corrosion Resistance
| Lub ntsiab | SUS316 (%) | Lub luag haujlwm Corrosion |
|---|---|---|
| Cr | 16.0–18.0 | Muab kev tiv thaiv corrosion dav dav |
| Ni | 10.0–14.0 | Txhim kho acid tsis kam |
| Mo | 2.0–3.0 | Qhov tseem ceeb rau pitting & crevice corrosion kuj |
| C | Tsawg dua lossis sib npaug li 0.08 | Tiv thaiv carbide nag lossis daus & IGC |
| Mn | Tsawg dua los yog sib npaug rau 2.0 | Deoxidizer |
| Si | Tsawg dua los yog sib npaug rau 1.0 | Txhim kho oxidation tsis kam |
Corrosion Resistance Performance ntawm SUS316 (Cov ntaub ntawv-Tsav)
| Nruab nrab | Kub | SUS316 Corrosion Rate |
|---|---|---|
| 3.5% NaCl dej hiav txwv | 25 degree | < 0.01 mm/year |
| Acetic acid (10%) | 50 degree | 0.02-0.05 hli / xyoo |
| sulfuric acid (1%) | 25 degree | < 0.03 mm/year |
| Sodium hydroxide (30%) | 100 degree | Kev tiv thaiv zoo heev |
| Hydrochloric acid | Chav ntsuas kub | Tsis pom zoo |
Mechanical Properties ntawm SUS316
| Khoom | Tus nqi |
|---|---|
| Tensile zog | 515-620 MPa |
| Yield zog | Ntau dua lossis sib npaug li 205 MPa |
| Elongation | Ntau dua lossis sib npaug li 40% |
| Hardness | Tsawg dua lossis sib npaug li 95 HRB |
| Qhov ntom | 8.0 g / cm³ |
Cov neeg siv khoom
Cov chaw tsim khoom siv tshuaj nyob sab Europe xav tau SUS316L stainless hlau nplooj ntawv uas ua tau raws li ASTM G48 pitting qib A cov qauv.
Gnee muab:
8 tons, 3.0 hli SUS316L 2B
26℃ferric chloride pitting xeem daim ntawv qhia
Kev cai nyias - zaj duab xis txheej rau kev tiv thaiv nto
Cov neeg siv khoom tawm tswv yim: Cov khoom siv tu cov nqi poob qis 22% tom qab hloov cov khoom qub.
GNEE boasts tshaj 18 xyoo ntawm kev muab stainless hlau los xij. Gnee muaj SUS316 stainless hlau nplooj ntawv, coils, kav dej, fittings, thiab kev cai -machined qhov chaw. Tag nrho cov khoom raug kuaj raws li ASTM thiab ISO cov qauv.
SUS316 Tshuag: Tshaj 1000 tons
Standard Thickness: 0.3-50 hli, Dav mus txog 2000 hli
Kev Xaiv Nto tiav: 2B, BA, No.1, HL, Daim iav, Polished
Lub sij hawm xa tuaj: 7-15 hnub, nrog hiav txwv - npaj ntim
Peb Cov Kev Ntsuas Kev Tiv Thaiv Corrosion:
ASTM A262 IGC Test Report
ASTM G48 Pitting Test Results
500–1500 Teev NSS Ntsev Txau Test
PMI Composition Testing + MTR 3.1 Certificate
Xa kev nug