P91 chrome moly yeeb nkab yog dab tsi
Jan 08, 2026
P91 alloy yeeb nkab yog hloov kho 9Cr-1Mo tshav kub- cov hlau tsis muaj zog, tshwj xeeb tsim rau qhov kub thiab txias ib puag ncig. Nws cov khoom tseem ceeb yog chromium thiab molybdenum, nrog kwv yees li 9% chromium thiab 1% molybdenum, nrog rau cov lej ntawm vanadium, niobium, thiab lwm yam. Qhov kev sib xyaw ua ke no tso cai rau nws kom muaj zog zoo txawm tias nyob ntawm 600 degree, thiab nws cov oxidation tsis kam yog ntau tshaj peb npaug ntawm cov hlau zoo tib yam.
Cov yam ntxwv tseem ceeb:
Kev Ua Haujlwm Kub Kub Kub: tuaj yeem ua haujlwm tsis tu ncua ntawm 593-650 degree, nrog rau lub sijhawm luv luv tiv taus kub txog 760 degree.
Creep Resistance: Deformation nyob rau hauv siab - qhov kub thiab txias yog 80% tsawg dua li cov hlau zoo tib yam.
Weldability: Preheating qhov yuav tsum tau muaj yog 50-100℃qis dua cov ntaub ntawv zoo sib xws.
Kev Ntsuas Nyiaj Txiag: Tus nqi tsuas yog 1/3 ntawm nickel-raws li alloys, thaum lub neej kev pab cuam yog ob npaug ntawm cov cua sov zoo tib yam- cov hlau tsis muaj zog.
Daim ntawv thov:
1. Kev lag luam fais fab: P91 feem ntau yog siv los ua qhov siab - kub, siab - cov khoom siv hauv cov boilers thiab cov kav dej ntawm lub tshuab fais fab. Nws tuaj yeem tiv taus qhov chaw ua haujlwm hnyav, ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov khoom siv hluav taws xob.
2. Petrochemical Kev Lag Luam: Hauv kev lag luam roj av thiab tshuaj lom neeg, P91 feem ntau siv rau hauv kev tsim cov siab - kub, siab - cov kav dej thiab cov li qub. Cov khoom siv no yuav tsum tau tiv taus qhov siab ntawm siab - cov pa roj lossis cov kua dej thaum lub sijhawm ua haujlwm, thiab P91 qhov kub tsis kam ua tau raws li qhov yuav tsum tau ua.
3. Kev lag luam metallurgical: Hauv cov khoom siv metallurgical, P91's oxidation tsis kam ua rau nws yog cov khoom siv zoo tagnrho, tshwj xeeb tshaj yog cov txheej txheem smelting thiab casting.
4. Nuclear Zog Kev Lag Luam: Ntau yam tseem ceeb ntawm cov chaw tsim hluav taws xob nuclear kuj siv cov ntaub ntawv P91 vim lawv qhov kev ruaj ntseg thiab kev ntseeg siab nyob rau hauv huab cua.
Raws li cov txheej txheem tsim khoom, P91 steel kav yog tsim los siv cov txheej txheem kub dov lossis txias txheej txheem.
Kev tsim cov khoom kub - dov seamless steel kav yog qhov tseem ceeb heev. Tag nrho cov txheej txheem tsim khoom suav nrog ntau cov kauj ruam xws li steelmaking, nruam casting, tho, kub dov, thiab kev kho cua sov, txhua qhov yuav tsum tau tswj kom meej. Nyob rau hauv lub steelmaking theem, hluav taws xob furnaces los yog converters yog siv rau smelting, ua ke nrog LF ladle refining thiab VD nqus degassing los xyuas kom meej lub purity ntawm cov hlau molten. Thaum lub sij hawm kub dov, kev tswj qhov kub thiab txias hauv qhov tho qhov yog qhov tseem ceeb heev, feem ntau khaws cia nyob rau hauv thaj tsam ntawm 1150-1250 degree. Kev kho cua sov siv cov txheej txheem "normalizing + tempering", nrog rau normalizing kub tswj ntawm 1040-1080℃thiab tempering kub ntawm 730-780 degree. Txoj kev kho cua sov no tso cai rau cov khoom siv kom tau txais cov qauv zoo tshaj plaws tempered martensitic.
A335 P91 Kub Rolled Seamless steel yeeb nkab Hoobkas
