Pearlite Thaum tshav kub kub-Resistant 12CR 1movg High Pressure Alloy Tube
Lub matrix yog cov hlau tsis tshua muaj hluav taws kub-resistant nrog pearlite lossis bainite qauv.Feem ntau muaj chromium-molybdenum thiab chromium-molybdenum-vanadium series.Tom qab ntawd, ntau yam (xws li chromium, tungsten, molybdenum, vanadium, titanium, boron, thiab lwm yam) cov qib sib xyaw alloyed steel tau tsim, thiab cov kav ntev thiab kev pabcuam kub ntawm cov hlau tau maj mam nce.Tab sis feem ntau tag nrho cov ntsiab lus ntawm alloying feem ntau yog 5%, thiab nws cov qauv muaj xws li bainitic hlau ntxiv rau pearlite.Cov hlau zoo li no muaj qhov kub thiab txias creep zog thiab cov txheej txheem kev ua tau zoo ntawm 450 ~ 620 ℃, thiab muaj thermal conductivity zoo, tsis tshua muaj expansion coefficient thiab tsis tshua muaj nqi.Nws yog dav siv los ua ntau yam khoom siv hluav taws xob tiv thaiv nyob rau hauv thaj tsam ntawm 450 ~ 620 ℃.Xws li boiler steel kav rau fais fab chaw nres tsheb, chav turbine impellers, rotors, fasteners, high-pressure hlab ntsha rau roj refining thiab tshuaj industries, khib nyiab boilers, cua sov rauv tubes thiab tshav kub exchanger raj, thiab lwm yam.
[1] Hlau rau qis-alloy tshav kub-resistant steel kav.
Feem ntau yog siv los ua cov phab ntsa dej boiler, superheaters, reheaters, economizers, headers thiab chav kav, nrog rau cov cua kub exchanger raj rau petrochemical thiab nuclear zog.Cov khoom siv yuav tsum muaj kev txwv siab, lub zog ntev thiab ntev yas yas, zoo oxidation tsis kam thiab corrosion kuj, txaus cov qauv ruaj khov thiab zoo weldability thiab kub thiab txias ua haujlwm.Lub neej ua haujlwm tau tsim muaj txog li 200,000 teev.Lub hom phiaj tseem ceeb hauv Suav teb yog 12CrMo, 15CrMo, 12Cr2Mo, 12CrlMoVG high-pressure alloy tubes, thiab 12Cr2MoWVTiB, uas yog siv nyob rau hauv thaj tsam ntawm 480 ~ 620 ℃.Normalizing thiab tempering feem ntau yog siv rau kev kho cua sov.
[2] Hlau rau cov phaj siab siab.
Hauv kev lag luam petrochemical, thee gasification, nuclear fais fab thiab chaw nres tsheb fais fab, cov hlau tsis tshua muaj hluav taws kub-resistant steel phaj yog dav siv los ua cov hlab ntsha siab.Cov hom tseem ceeb hauv Suav teb yog 15CrMoG high-pressure alloy kav (1.25Cr-O.5Mo), 12Cr2Mo (2.25Cr-1Mo) thiab 12Cr1MoV, thiab lwm yam. Piv txwv li, kub-phab ntsa hydrogenation reactors feem ntau siv 2.25Cr-1Mo) steel daim hlau. (25 ~ 150 hli).), vim tias cov khoom siv tau ua haujlwm nyob rau hauv qhov kub thiab txias, kev kub siab thiab hydrogen tsis kam rau lub sijhawm ntev, thaum xav txog kev tiv thaiv ntawm embrittlement ntawm 475 ° C, cov khoom yuav tsum muaj siab purity, thiab cov sulfur thiab phosphorus. yuav tsum tsawg tshaj li 0.01% thiab qhov qis tshaj qhov ua tau tin, Cov ntsiab lus tsis zoo xws li antimony thiab arsenic yuav tsum tau hluav taws xob rauv smelting thiab sab nraud refining.
[3] Hlau rau fasteners.
Fastener steel yog cov khoom siv tseem ceeb uas ua lub luag haujlwm hauv kev sib txuas ntawm chav turbines, boilers thiab lwm yam khoom siv ntim siab.Nws yuav tsum muaj kev txwv tsis pub txaus, kev so siab, kev ruaj ntseg ntev, zoo plasticity thiab me me ntev-ntev rhiab heev.Oxidation kuj thiab kev ua haujlwm zoo.Lub npe tseem ceeb hauv Suav teb yog 25Cr2Mo, 25Cr2MoV, 25Cr2Mo1V, 20Cr1M01VNbTiB, thiab lwm yam., uas tuaj yeem siv rau hauv thaj tsam ntawm 500 ~ 570 ℃ feem.Cov qib no feem ntau yog siv tom qab quenching thiab tempering.
[4] Hlau rau rotor (spindle, impeller).
Lub ntsiab ncej, impeller thiab ib qho forged rotor yog ib qho ntawm cov khoom tseem ceeb ntawm chav turbine.Cov khoom siv yuav tsum muaj cov khoom zoo txhua yam, tawg toughness, siab creep kuj thiab endurance zog, thiab zoo thermal qaug zog kuj.Feem ntau siv hom spindle thiab impeller hauv Suav teb yog 35CrMo, 35CrMoV, 27Cr2Mo1V, 12Cr3MoWV, thiab lwm yam. Cov roj turbine rotor yog forged los ntawm 20Cr3MoWV steel.Kev siv quenching thiab tempering kho.Rau cov forgings loj xws li forged rotors thiab impellers, txhawm rau kom yaj tag nrho vanadium carbide thiab txhim kho plasticity thiab toughness, normalizing pretreatment tuaj yeem nqa tawm ua ntej quenching, los yog kev kho cua sov ntawm ob normalizing thiab tempering yuav siv tau.
[5] 1Cr5Mo thiab Cr6SiMo steel.
Ob qib no muaj cov ntsiab lus alloying siab tshaj plaws nyob rau hauv pearlitic tshav kub-resistant steel.Lawv muaj kev ua haujlwm zoo thaum tshav kub kub thiab corrosion kuj nyob rau hauv roj av media.Lawv tau siv dav hauv kev tsim cov raj xa dej thiab cov hlab ntsha rau cov khoom siv roj av distillation, cua sov rauv tub thiab cov khoom siv hluav taws xob, thiab lwm yam., kuj tseem siv tau los ua kub stamping tuag, roj twj, li qub, boiler hangers thiab lwm yam.Feem ntau qhov kev siv kub yog qis dua 650 ℃.Txij li cov hlau no yog cov cua hardened hlau, cov weld seam muaj siab hardness thiab tsis zoo plasticity, yog li nws yuav tsum tau maj mam txias thiab annealed tom qab vuam.
Kub dov (extruded seamless steel raj): round tube billet → cua sov → tho → peb-yob cross dov, nruam dov los yog extrusion → raj tshem tawm → sizing (los yog txo) → txias → billet raj → straightening → dej siab Test (los yog flaw nrhiav) → cim → warehousing.
Cold drawn (dov) seamless steel yeeb nkab: round tube billet → cua sov → tho → taub hau → annealing → pickling → oiling (tooj liab plating) → multi-pass txias drawing (txias dov) → billet raj → tshav kub kho → straightening → Dej siab kuaj (Kev kuaj pom qhov tsis haum) → cim → warehousing.
GB / T8162-2008 (Seamless steel yeeb nkab rau cov qauv).Feem ntau yog siv rau cov qauv dav dav thiab cov qauv siv tshuab.Nws cov khoom sawv cev (hom): carbon steel 20, 45 steel;alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, thiab lwm yam.
GB / T8163-2008 (Seamless steel yeeb nkab rau conveying kua).Feem ntau siv hauv engineering thiab cov cuab yeej loj loj los thauj cov kav dej.Cov khoom sawv cev (hom) yog 20, Q345, thiab lwm yam.
GB3087-2008 (Seamless steel raj rau qis thiab nruab nrab siab boilers).Feem ntau yog siv nyob rau hauv industrial boilers thiab domestic boilers los thauj cov kav dej qis thiab nruab nrab siab.Cov ntaub ntawv sawv cev yog 10 thiab 20 steel.
GB5310-2008 (Seamless steel raj rau siab-siab boilers).Feem ntau yog siv rau qhov kub thiab txias thiab high-pressure conveying kua headers thiab pipelines ntawm boilers nyob rau hauv lub hwj chim chaw nres tsheb thiab nuclear fais fab nroj tsuag.Cov ntaub ntawv sawv cev yog 20G, 12Cr1MoVG, 15CrMoG, thiab lwm yam.
GB5312-1999 (Carbon steel thiab carbon-manganese steel seamless steel kav rau nkoj).Feem ntau yog siv rau cov kav dej siab I thiab II rau marine boilers thiab superheaters.Cov ntaub ntawv sawv cev yog 360, 410, 460 steel qib, thiab lwm yam.
GB6479-2000 (Seamless steel kav rau high-pressure chiv khoom).Feem ntau yog siv rau kev xa cov kav dej kub thiab kub siab ntawm cov khoom siv chiv.Cov ntaub ntawv sawv cev yog 20, 16Mn, 12CrMo, 12Cr2Mo, thiab lwm yam.
GB9948-2006 (Seamless steel yeeb nkab rau roj av tawg).Feem ntau siv nyob rau hauv boilers, tshav kub exchangers thiab kua pipelines roj av smelters.Nws cov ntaub ntawv sawv cev yog 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, thiab lwm yam.
GB18248-2000 (Seamless steel raj rau roj thooj voos kheej kheej).Feem ntau yog siv los ua ntau yam roj thiab hydraulic kheej kheej.Nws cov ntaub ntawv sawv cev yog 37Mn, 34Mn2V, 35CrMo, thiab lwm yam.
GB / T17396-1998 (Kub-dov seamless steel kav rau hydraulic props).Feem ntau yog siv los ua thee mine hydraulic kev txhawb nqa, lub tog raj kheej thiab kab, thiab lwm yam hydraulic kheej kheej thiab kab.Nws cov ntaub ntawv sawv cev yog 20, 45, 27SiMn thiab lwm yam.
GB3093-1986 (High-pressure seamless steel kav rau diesel xyaw).Feem ntau yog siv rau kev kub siab roj yeeb nkab ntawm diesel cav txhaj system.Cov yeeb nkab steel feem ntau yog txias, thiab nws cov khoom sawv cev yog 20A.
GB / T3639-1983 (txias kos los yog txias dov precision seamless steel yeeb nkab).Nws yog tsuas yog siv rau cov kav hlau siv hauv cov khoom siv kho tshuab thiab cov khoom siv carbon siab uas yuav tsum tau muaj qhov tseeb qhov tseeb thiab qhov zoo ntawm qhov chaw.Nws cov khoom sawv cev yog 20, 45 steel, thiab lwm yam.
GB / T3094-1986 (txias kos seamless steel yeeb nkab tshwj xeeb zoo li cov yeeb nkab).Nws yog tsuas yog siv los ua ntau yam qauv thiab qhov chaw, thiab nws cov ntaub ntawv yog cov zoo carbon steel thiab low-alloy structural steel.
GB / T8713-1988 (Precision puab txoj kab uas hla seamless steel yeeb nkab rau hydraulic thiab pneumatic thooj voos kheej kheej).Nws yog tsuas yog siv los ua kom txias los yog txias dov seamless steel kav nrog meej puab diameters rau hydraulic thiab pneumatic thooj voos kheej kheej.Nws cov khoom sawv cev yog 20, 45 steel, thiab lwm yam.
GB13296-1991 (Stainless steel seamless steel raj rau boilers thiab kub exchangers).Feem ntau siv hauv boilers, superheaters, tshav kub exchangers, condensers, catalytic hlab, thiab lwm yam.Siv high-temperature, high-pressure, corrosion-resistant steel kav.Nws cov ntaub ntawv sawv cev yog 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, thiab lwm yam.
GB / T14975-1994 (Stainless steel seamless steel yeeb nkab rau cov qauv).Nws yog tsuas yog siv rau cov qauv dav dav (lub tsev so thiab tsev noj mov kho kom zoo nkauj) thiab cov qauv kev lag luam ntawm cov tshuaj lom neeg, uas tiv taus huab cua thiab acid corrosion thiab muaj qee lub zog steel kav.Nws cov ntaub ntawv sawv cev yog 0-3Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, thiab lwm yam.
GB / T14976-1994 (Stainless steel seamless steel yeeb nkab rau kev thauj mus los).Feem ntau yog siv rau cov kav dej uas thauj corrosive media.Cov ntaub ntawv sawv cev yog 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti, thiab lwm yam.
YB/T5035-1993 (Seamless steel kav rau tsheb qag casings).Nws yog tsuas yog siv los ua cov pa roj carbon zoo steel thiab alloy structural steel kub dov seamless steel kav rau tsheb ib nrab qag tes tsho thiab tsav qag qag raj.Nws cov ntaub ntawv sawv cev yog 45, 45Mn2, 40Cr, 20CrNi3A, thiab lwm yam.
API SPEC5CT-1999 (Casing and Tubing Specification), yog muab tso ua ke thiab tawm los ntawm American Petroleum Institute (American Petreleum Instiute, hu ua "API") thiab siv nyob rau hauv txhua qhov chaw ntawm lub ntiaj teb no.Ntawm lawv: Casing: cov yeeb nkab uas txuas los ntawm cov av saum npoo mus rau hauv lub qhov dej thiab ua haujlwm raws li lub hauv paus ntawm phab ntsa dej.Cov kav dej yog txuas nrog couplings.Cov ntaub ntawv tseem ceeb yog qib steel xws li J55, N80, thiab P110, nrog rau qib steel xws li C90 thiab T95 uas tiv taus hydrogen sulfide corrosion.Nws cov qib qis steel (J55, N80) tuaj yeem welded steel yeeb nkab.Tubing: Cov yeeb nkab tso rau hauv lub casing los ntawm cov av saum npoo mus rau txheej roj.Cov kav dej yog txuas nrog couplings lossis integrally.Lub luag haujlwm ntawm lub twj tso kua mis yog thauj cov roj los ntawm cov roj txheej mus rau hauv av los ntawm cov roj yeeb nkab.Cov ntaub ntawv tseem ceeb yog J55, N80, P110, thiab C90, uas tiv taus hydrogen sulfide corrosion, muab tso ua ke thiab muab los ntawm American Petroleum Institute, thiab siv thoob plaws ntiaj teb.
