Taw qhia
CovASTM A312 UNS S30815 253MA Stainless hlau yeeb nkabyog ib qho kev ua tau zoo austenitic stainless hlau alloy paub txog nws cov kev ua haujlwm zoo tshaj plaws rau kev kub siab oxidation, corrosion, thiab zoo heev txhua yam khoom nyob rau hauv siab kub ib puag ncig.253 MASyog tsim tshwj xeeb rau kev pabcuam hauv cov ntawv thov uas yuav tsum tau muaj qhov kub thiab txias, tshwj xeeb tshaj yog nyob rau hauv qhov cub thiab kev kho cua sov kev lag luam. Nws zoo heev tsis kam mus scaling, carburization, thiab dav oxidation ua rau nws ib tug txhim khu kev qha cov ntaub ntawv rau huab ib puag ncig.
Qib no ntawm stainless hlau yog dav siv nyob rau hauv high-temperature industrial daim ntaub ntawv thiab yog zoo tagnrho rau cov kev siv uas muaj zog thiab oxidation kuj tseem ceeb heev.
Standards thiab Specifications
CovASTM A312 UNS S30815 253MA Stainless hlau yeeb nkabyog tsim raws li cov qauv hauv qab no:
- ASTM A 312 Cov Lus Qhia Tshwj Xeeb: Txuj Specification rau Seamless, Welded, thiab hnyav hnyav ua haujlwm Austenitic Stainless hlau kav
- UNS S30815: Lub Unified Numbering System rau cov ntaub ntawv txheeb xyuas qhov no yog qib high-alloy stainless hlau.
- TS EN 10088-2: European Standard rau Stainless Hlau, npog cov kev cai rau cov khoom no muaj pes tsawg leeg, mechanical zog, thiab kev xeem.
Tshuaj muaj pes tsawg leeg(% los ntawm Nyhav)
Cov tshuaj muaj pes tsawg leeg ntawm253 MAS (UNS S30815)yog tsim los muab kev tiv thaiv zoo rau oxidation thiab kub-kub lub zog. Lub ntsiab muaj pes tsawg leeg yog raws li nram no:
| Element | Kev sib xyaw (%) |
| Chromium (Cr) | 20.00 - 23.00% |
| Nickel (Ni) | 24.00 - 26.00% |
| Silicon (Si) | 1.50 - 2.50% |
| Manganese (Mn) | 1.00 - 2.00% |
| Cov pa roj carbon (C) | ≤ 0.08% |
| Phosphorus (P) | ≤ 0.045% |
| Sulfur (S) | ≤ 0.030% |
| Nitrogen (N) | 0.10 - 0.30% |
| Hlau (Fe) | Tshuav |
Cov Khoom Siv Khoom: Cov yam ntxwv tseem ceeb
253 MAS(UNS S30815) ua ke zoo heev-kub lub zog nrog oxidation kuj. Qhov no ua rau nws zoo tagnrho rau cov ntawv thov hauv qhov chaw huab cua, xws li cov cua sov thiab cov khoom siv hluav taws xob. Cov khoom siv muaj cov ntsiab lus siab chromium thiab npib tsib xee, muab kev tiv thaiv zoo rau oxidation ntawm qhov kub txog li 1150 ° C (2100 ° F).
Lub cev muaj zog
- Qhov ntomQhov hnyav: 7.8g / cm³
- Melting PointKub: 1390 ° C (2540 ° F)
- Thermal conductivity15.5 W / m·K ntawm 100 ° C
- Tshwj xeeb kub0.50 J / g·K ntawm 100 ° C
- Hluav taws xob Resistivity0.73 μΩ·m ntawm 20 ° C
- Tensile zog570 MPa (tsawg kawg)
- Yield zog240 MPa (tsawg kawg)
- Elongation: 40% (tsawg kawg)
- Hardness (Rockwell B): HRB 90 (siab tshaj)
- Modulus ntawm Elasticity: 200 GPa
- Poisson tus ratio:0.30 Nws
- Zoo heev tiv taus kub-kub oxidation, scaling, thiab carburization.
- Khaws lub zog thiab daim ntawv ruaj khov ntawm qhov kub siab tshaj 1000 ° C (1832 ° F).
- Superior tsis kam rau acidic thiab alkaline ib puag ncig.
- Resistant rau sulfur thiab chloride-induced stress corrosion cracking.
- Muaj peev xwm tiv taus ib puag ncig hnyav, ua rau nws zoo tagnrho rau kev siv tshuaj lom neeg thiab cov txheej txheem kub kub.
Mechanical Properties
Oxidation Resistance
Corrosion Resistance
Txheej txheem ntau lawm: Craftsmanship rau Precision
Kev tsim khoom ntawm253MA Stainless hlau kavua raws li cov txheej txheem ntau lawm los xyuas kom meej qhov zoo thiab kav ntev:
- Seamless Yeeb Nkab Manufacturing: Ua los ntawm extrusion, rotary tho, thiab elongation txheej txheem los tsim seamless kav nrog uniform phab ntsa thickness.
- Txias-ua hauj lwm txheej txheem: Kev kos duab txias lossis cov txheej txheem pilgering yog ua haujlwm kom ua tiav qhov ntev thiab du nto.
- Kev kho cua sov: Cov kav dej tau txais kev kho cua sov ntawm qhov kub tshwj xeeb los txhim kho lawv cov khoom siv kho tshuab thiab kev ua haujlwm kub.
- Pickling & Passivation: Cov kav dej yog pickled kom tshem tawm cov nplai thiab oxide zaj duab xis thiab passivated kom ntseeg tau tias tiv thaiv corrosion ntxiv.
Kev kuaj thiab tshuaj xyuas: Kev Pov Hwm Zoo
Womic Steel ua raws li cov txheej txheem kuaj nruj kom ntseeg tau qhov zoo tshaj plaws rau253MA Stainless hlau kav:
- Chemical Composition Analysis: Txheeb xyuas siv cov txheej txheem spectroscopic kom paub meej tias cov hlau ua tau raws li cov txheej txheem teev tseg.
- Mechanical Testing: Tensile, hardness, thiab cuam tshuam kev soj ntsuam xyuas cov khoom ua haujlwm ntawm qhov kub sib txawv.
- Kev Ntsuas Hydrostatic: Cov kav dej tau raug sim rau kev ua haujlwm siab kom ntseeg tau tias kev ua haujlwm tsis muaj paug.
- Kev kuaj tsis yog kev puas tsuaj (NDT): suav nrog ultrasonic, eddy tam sim no, thiab dye penetrant kuaj xyuas kom pom cov teeb meem sab hauv lossis qhov chaw.
- Visual & Dimensional Inspection: Txhua lub yeeb nkab yog pom pom kev soj ntsuam rau qhov chaw tiav, thiab qhov tseeb qhov tseeb yog kuaj xyuas qhov tshwj xeeb.
Yog xav paub ntxiv lossis kev cai hais lus, hu rau Womic Steel hnub no!
Email: sales@womicsteel.com
MP/WhatsApp/WeChat:Victor: +86-15575100681 Jack: +86-18390957568
Post lub sij hawm: Jan-08-2025