Cov khoom muaj pes tsawg leeg ntawm SA213 T92 yog dab tsi
Jan 07, 2026
Lub ntsiab Cheebtsam ntawm ASTM A213 T92 seamless steel yeeb nkab muaj xws li alloying ntsiab xws li chromium, molybdenum, vanadium, thiab niobium. Qhov kev faib ua feem ntawm cov ntsiab lus no ua rau cov khoom muaj txiaj ntsig zoo heev - kub lub zog thiab cov tshuaj tiv thaiv me me. Tshwj xeeb, cov ntsiab lus chromium, nruab nrab ntawm 8.5% thiab 9.5%, tsim cov txheej txheej tiv thaiv chromium oxide tuab, tiv thaiv kom siab -kub oxidation; qhov sib ntxiv ntawm molybdenum ho txhim kho cov khoom siv lub zog creep; thaum lub micro-alloying nyhuv ntawm vanadium thiab niobium ntxiv refines cov nplej thiab txhim kho cov khoom toughness. Cov tshuaj muaj pes tsawg leeg tsim no tso cai rau T92 steel tswj cov khoom zoo txawm tias nyob rau hauv siab - qhov kub thiab txias ib puag ncig qis dua 650 degree, zoo dua li cov khoom siv zoo tib yam xws li P91.
Cov tshuaj muaj pes tsawg leeg ntawm T92 steel yeeb nkab yog tsim los, feem ntau muaj cov hauv qab no (feem ntau):
- Carbon (C): 0.07% ~ 0.13%, muab matrix zog;
- Chromium (Cr): 8.5% ~ 9.5%, txhim kho oxidation thiab corrosion kuj;
- Molybdenum (Mo): 0.30% ~ 0.60%, synergistically txhim kho siab - kub lub zog nrog tungsten;
- Tungsten (W): 1.50% ~ 2.00%, lub zog tseem ceeb, tsim carbonitrides nrog vanadium thiab niobium;
- Vanadium (V) thiab Niobium (Nb): tsim zoo MX- hom precipitates, cuam tshuam kev txav txav txav;
- Boron (B) thiab Nitrogen (N): ntxiv nyob rau hauv ib txoj lw, optimizing grain ciam zog.
- Nws microstructure yog tempered martensite, tau los ntawm normalizing + tempering txheej txheem. Cov nag lossis daus (xws li M23C6 thiab MX) tau muab faib ua ib ntus, txhim kho qhov kub siab -qhov kub thiab txias.
T92 steel kav yog siv rau hauv:
1. Thermal power generation: High-kub Cheebtsam ntawm supercritical (SC) thiab ultra-supercritical (USC) units, xws li cov kav dej loj thiab cov taub hau. Tuam Tshoj Huaneng Group yog thawj tus txais T92 steel kav hauv nws 1000MW chav tsev ntawm Yuhuan Fais Fab Cog, ua kom lub tsev ua tau zoo tshaj 45%.
2. Petrochemical kev lag luam: Piping rau siab -kub tawg units thiab hydrogenation reactors, resistant rau hydrogen sulfide corrosion.
3. Nuclear fais fab tuag: Kev sim ua daim ntawv thov nyob rau hauv kev sib pauv cua sov ntawm qee qhov thib plaub - tiam reactors.
T92 Boiler raj Hoobkas
