A213 T91 Chrome Moly Alloy rhaub Tubes
A213T91 alloy raj yog seamless steel raj rau siab -siab boilers uas ua tau raws li ASTM A213/A213M-07a tus qauv. Nws cov tshuaj muaj pes tsawg leeg muaj cov ntsiab lus xws li carbon (0.07{19}}0.13%), chromium (8-9.5%), molybdenum (0.85-1.05%), vanadium (0.18-0.25%), niobium (0.06-0.10%), thiab lwm yam. Tom qab normalizing zog thiab tempering thiab ruaj khov, nws muaj kev tiv thaiv zoo heev yas. Qhov tsim kev ntxhov siab ntawm cov khoom siv no ntawm 550℃yog ob zaug ntawm cov tsoos T9 steel, thiab qhov kev ntxhov siab tso cai qis dua 620℃tshaj li ntawm austenitic stainless hlau. Nws yog tsim rau high-temperature superheaters thiab reheaters nyob rau hauv subcritical / supercritical boilers nrog phab ntsa kub tsawg dua los yog sib npaug zos rau 625 degree.
Gnee Steel (Tianjin) Co., Ltd. yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm a213 t91 chrome moly alloy rhaub raj hauv Suav teb, kuj txhawb kev pabcuam customized nrog tus nqi qis. Txais tos rau cov lag luam wholesale luv nqi a213 t91 chrome moly alloy rhaub tub rau muag ntawm no los ntawm peb lub hoobkas. Tiv tauj peb rau cov qauv dawb.
T91 seamless steel yeeb nkab, raws li cov khoom tseem ceeb hauv kev lag luam hluav taws xob, petrochemicals, thiab boiler manufacturing, occupies ib qho tseem ceeb txoj hauj lwm nyob rau hauv industrial daim ntaub ntawv vim nws zoo heev - kub lub zog thiab corrosion kuj. Cov khoom no belongs rau martensitic tshav kub-resistant steel raws li ASTM A213 tus qauv hauv Tebchaws Meskas, nrog rau qib sib xws ntawm 10Cr9Mo1VNbN hauv Suav teb. Nws cov tshuaj muaj pes tsawg leeg tau ua tib zoo tsim, nrog cov ntsiab lus carbon tswj ntawm 0.08% -0.12% thiab cov ntsiab lus chromium ntawm 8.0% -9.5%.
Cov ntsiab lus hlau xws li molybdenum, vanadium, thiab niobium tau ntxiv, thiab los ntawm cov khoom siv ntxiv dag zog thiab nag lossis daus, cov yeeb nkab steel tuaj yeem tswj tau zoo heev creep tawg lub zog ntawm qhov kub ntawm 600 degree.
Nyob rau hauv cov nqe lus ntawm ntau lawm technology, T91 yog ua rau seamless raj siv kub dov los yog txias txheej txheem. Sab hauv thiab sab nrauv yuav tsum tau ua kom nruj polishing thiab ntxuav cov kua qaub kom paub meej qhov tseeb ntawm ± 0.5 hli thiab phab ntsa thickness sib txawv tsis ntau tshaj ± 10%. Cov yam ntxwv no ua rau nws siv dav hauv siab - cov khoom siv siab xws li superheaters thiab reheaters hauv supercritical boilers.
A213 T91 chromium{2}}molybdenum alloy steel kavmuab los ntawm GNEE Group muaj nyob rau hauv sab nraud diameters ntawm 1/2 nti mus rau 36 ntiv tes (DN25 txog DN900) thiab phab ntsa thicknesses txog SCH 160. Cov kav dej no muaj kev tiv thaiv oxidation zoo, creep zog, thiab ntev -lub sij hawm kev ruaj ntseg ntawm qhov kub thiab txias, ua rau lawv zoo tagnrho rau kev thov rau kev thov nyob rau hauv lub hwj chim tiam thiab boiler, {7} boiler systems. Yog xav paub ntxiv txog tus nqi, thovtiv taujGNEE Group ncaj qha.
A23 T91 chromium-molybdenum yeeb nkab tshuaj muaj pes tsawg leeg:
C 0.07%~0.13%
Cr 8.0% ~ 9.5%
Mov 0.85% ~ 1.05%
V 0.18%~0.25%
Nb 0.06% ~ 0.10%.
A213 T91 Tsawg Alloy Steel Tubes Mechanical zog:
Tensile zog ntawm chav tsev kub siab tshaj los yog sib npaug rau 585MPa
tsis sib npaug tensile lub zog tau teev tseg ntawm 550℃Ntau dua lossis sib npaug rau 376MPa
A23 T91 Chrome Moly Seamless Tubes Cov txheej txheem kev kho cua sov:
1040 ± 10℃normalizing rwb thaiv tsev rau 30 feeb, 760 ± 10℃tempering rwb thaiv tsev rau 60 feeb
A213 T91 Tsawg Alloy Steel Superheater Tube Hydraulic xeem:
Nws yuav tsum dhau qhov kev ntsuas siab 20MPa thiab ua kom lub siab ruaj khov rau ntau tshaj 10 vib nas this yam tsis muaj dej los yog yas deformation
Cov ntsiab lus tseem ceeb ntawm A213 T91 Alloy Steel High Pressure Tube txheej txheem tsim khoom
Kev tsim cov qib siab - zoo T91 alloy tubes yuav tsum tau nruj me ntsis cov txheej txheem metallurgical:
1. Smelting txheej txheem: - Txais cov txheej txheem triple ntawm hluav taws xob arc rauv + LF refining + VD nqus tsev degassing - Tswj cov ntsiab lus oxygen tsawg dua lossis sib npaug li 20ppm, sulfur Tsawg dua lossis sib npaug rau 0.010% - Ntxiv nitrogen cov ntsiab lus (0.07pitation%) txhim kho cov nyhuv preci-0.
2. Kub ua tshuab: - perforation kub ntawm 1150-1200 degree, zaum kawg dov kub siab tshaj los yog sib npaug rau 900℃- siv "tswj dov thiab tswj cua txias" tshuab, kawg txias ceev ntawm 30-50℃/ s - normalizing kub ntawm 10840-1080℃tempering
3. Kev Tswjhwm Zoo: -100% ultrasonic kuaj (ASTM A213 tus qauv) - Hardness tswj 180-250HBW - Grain loj yuav tsum tau qib 5-8 (ASTM E112)
A213 T91 Chrome Moly Alloy Heater Tubes Lub ntsiab daim ntawv thov thaj chaw
1. Fais fab kev lag luam: - Superheater thiab reheater ntawm supercritical/ultra supercritical boilers - Main steam pipeline (tsim kub tsawg tshaj li los yog sib npaug rau 625 degree) - High pressure steam guide pipe of steam turbine - Statistics qhia tias ib lub boiler yuav tsum txog 800 tons ntawm T91 yeeb nkab
2. Petrochemical kev lag luam: - Hydrocracking unit reactor xa yeeb nkab - Ethylene cracking furnace convection seem rauv yeeb nkab - Synthetic ammonia unit conversion gas pipeline
3. Nuclear fais fab nroj tsuag: - Fast neutron breeder reactor Secondary loop steam generator - High temperature gas cooled reactor helium conduit
A213 T91 kub exchanger raj rau kub Hoobkas
A213 T91 Chrome Moly Alloy Heater Tubes Ntim thiab xa khoom
Cim npe nrov: a213 t91 chrome moly alloy rhaub raj, Tuam Tshoj a213 t91 chrome moly alloy rhaub raj manufacturers, lwm tus neeg, Hoobkas
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