Seamless steel kav tau muab faib ua ob hom: kub dov (extruded) seamless steel kav thiab txias-draw (dov) seamless steel kav vim lawv cov txheej txheem tsim khoom sib txawv.
Txheej txheem txheej txheem: kub dov (extruded seamless steel yeeb nkab): 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.
Vim lawv cov kev siv sib txawv, seamless steel kav tau muab faib ua ntau yam hauv qab no: GB / T8162 (cov kav dej seamless steel rau kev tsim qauv), carbon steel No. 20 thiab No. 45 steel;alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, thiab lwm yam.
GB / T8163 (seamless steel kav rau conveying kua).Nws yog tsuas yog siv rau conveying kua pipelines ntawm engineering thiab loj cov khoom.Cov ntaub ntawv (qib) yog 20, Q345, thiab lwm yam.
GB3087 (seamless steel kav rau qis thiab nruab nrab siab boilers).Nws yog tsuas yog siv rau pipelines rau conveying qis thiab nruab nrab siab siab kua nyob rau hauv industrial boilers thiab domestic boilers.Cov ntaub ntawv sawv cev yog No. 10 thiab No. 20 steel.
GB5310 (seamless steel kav rau kev kub siab boilers).Nws yog tsuas yog siv rau kub thiab siab siab thauj cov kua headers thiab pipelines ntawm boilers nyob rau hauv fais fab nroj tsuag thiab nuclear fais fab nroj tsuag.Cov ntaub ntawv sawv cev yog 20G, 12Cr1MoVG, 15CrMoG, thiab lwm yam.
GB5312 (carbon steel thiab carbon-manganese steel seamless steel kav rau nkoj).Nws yog tsuas yog siv rau Class I thiab II siab kav rau nkoj boilers thiab superheaters.Cov ntaub ntawv sawv cev yog 360, 410, 460 steel qib, thiab lwm yam.
GB1479 (seamless steel kav rau high-pressure chiv khoom).Nws yog tsuas yog siv los thauj high-temperature thiab high-pressure kua pipelines ntawm tshuaj chiv khoom.Cov ntaub ntawv sawv cev yog 20, 16Mn, 12CrMo, 12Cr2Mo, thiab lwm yam.
GB9948 (seamless steel kav rau roj av cracking).Mainly siv boilers, tshav kub exchangers thiab pipelines rau conveying kua nyob rau hauv roj av smelters.Nws cov ntaub ntawv sawv cev yog 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb thiab hais txog.
GB3093 (siab siab seamless steel yeeb nkab rau diesel cav).Nws yog tsuas yog siv rau high-pressure roj kav ntawm diesel cav txhaj tshuab.Cov steel yeeb nkab feem ntau yog ib tug txias drawn yeeb nkab, thiab nws cov khoom sawv cev yog 20A.
GB / T3639 (txias-kos los yog txias-dov precision seamless steel raj). Feem ntau yog siv rau cov khoom siv kho tshuab thiab cov khoom siv carbon xovxwm, cov kav hlau uas xav tau qhov siab qhov tseeb thiab qhov zoo ntawm qhov tiav.
GB / T3094 (txias-kos seamless steel yeeb nkab tshwj xeeb zoo li tus steel yeeb nkab).
GB / T8713 (Precision puab txoj kab uas hla seamless steel raj rau hydraulic thiab pneumatic lub tog raj kheej). steel thiab lwm yam.
GB13296 (stainless steel seamless raj rau boilers thiab tshav kub exchangers).Nws yog tsuas yog siv nyob rau hauv boilers, superheaters, tshav kub exchangers, condensers, catalytic hlab, thiab lwm yam. ntawm cov tshuaj enterprises.Its sawv cev cov ntaub ntawv yog 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni, thiab lwm yam.
GB / T14975 (stainless steel seamless steel yeeb nkab rau kev siv cov qauv). Nws yog tsuas yog siv rau cov qauv dav dav (tsev so, tsev noj mov kho kom zoo nkauj) thiab cov khoom siv tshuaj lom neeg cov qauv resistant rau huab cua, acid corrosion thiab steel yeeb nkab nrog qee lub zog.Nws cov ntaub ntawv sawv cev yog 0 -3Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, thiab lwm yam.
GB / T14976 (stainless steel seamless steel yeeb nkab rau kev thauj mus los).Nws yog tsuas yog siv rau pipelines conveying corrosive media.Cov ntaub ntawv sawv cev yog 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti, etc.
YB / T5035 (seamless steel tubes rau tsheb qag ncej casings). Nws cov ntaub ntawv sawv cev yog 45, 45Mn2, 40Cr, 20CrNi3A thiab lwm yam.
API SPEC5CT (Casing thiab Tubing Specification) yog sau thiab luam tawm los ntawm American Petroleum Institute (American Petreleum Institute, hu ua "API") thiab feem ntau siv thoob ntiaj teb.
Ntawm lawv, casing: cov yeeb nkab txuas los ntawm qhov chaw hauv av mus rau hauv lub qhov dej, thiab cov kav dej txuas nrog cov dab tshos.Cov ntaub ntawv tseem ceeb yog qib steel xws li J55, N80, thiab P110, thiab qib steel xws li Raws li C90 thiab T95 uas tiv taus hydrogen sulfide corrosion.
Cov yeeb nkab roj: Ib lub yeeb nkab uas tau muab tso rau hauv lub casing los ntawm cov av saum npoo mus rau cov roj txheej, thiab cov kav dej txuas nrog cov couplings los yog integrally.Cov ntaub ntawv tseem ceeb yog J55, N80, P110, thiab steel qib xws li C90 thiab T95 uas yog resistant rau hydrogen sulfide corrosion.API SPEC 5L (Line Pipe Specification), muab tso ua ke thiab luam tawm los ntawm American Petroleum Institute, feem ntau siv thoob ntiaj teb.Line yeeb nkab: nws yog thauj cov roj, roj lossis dej los ntawm cov ncej mus rau cov roj. thiab kev lag luam roj los ntawm cov kab yeeb nkab.
Cov kav dej muaj xws li seamless thiab welded kav, thiab cov yeeb nkab kawg muaj qhov xaus, threaded xaus thiab qhov (socket) xaus;txoj kev sib txuas yog qhov kawg vuam, dab tshos kev sib txuas, lub qhov (socket) txuas, thiab lwm yam.Cov khoom tseem ceeb ntawm cov yeeb nkab yog B, X42, X56, X65, X70 thiab lwm qib steel.
Cov blanks siv rau welded steel kav yog steel daim hlau los yog sawb hlau.Vim yog lawv cov khoom sib txawv thiab cov txheej txheem, cov kav dej welded tau muab faib ua cov kav hlau txuas hluav taws xob, hluav taws xob welding (ua haujlwm vuam) cov kav dej thiab tsis siv neeg arc welded kav.Vim nws cov duab kawg, nws muab faib ua puag ncig welded yeeb nkab thiab tshwj xeeb-puab (square, ca, thiab lwm yam) welded yeeb nkab rau ntau lub hom phiaj, thiab muab faib ua ntau yam hauv qab no:
GB / T3091 (galvanized welded steel yeeb nkab rau cov dej tsis tshua muaj siab kis tau tus mob). Feem ntau yog siv rau kev xa dej, roj, cua, roj thiab cua kub dej los yog chav dej thiab lwm yam dej qis qis thiab lwm yam khoom siv.Nws cov khoom sawv cev yog Q235A qib steel. .
GB / T3092 (galvanized welded steel yeeb nkab rau cov dej tsis tshua muaj siab kis tau tus mob). Feem ntau yog siv rau kev xa dej, roj, cua, roj thiab cua kub dej los yog chav dej thiab lwm yam dej qis thiab lwm yam khoom siv.Nws cov khoom sawv cev yog: Q235A qib hlau.
GB / T14291 (welded steel kav rau mine kua conveyance).Nws yog tsuas yog siv rau ncaj seam welded steel kav rau mine compressed cua, kua, thiab ncej tso pa roj.Nws cov khoom sawv cev yog Q235A thiab B qib steel.
GB / T14980 (Qhov loj-inch hluav taws xob-welded steel kav rau cov dej tsis tshua muaj siab kis tau tus mob). Feem ntau yog siv rau kev xa dej, dej phwj tuaj, roj, cua, cua sov chav thiab lwm yam dej uas tsis tshua muaj siab thiab lwm lub hom phiaj.Nws cov khoom sawv cev yog Q235A qib hlau.
GB / T12770 (stainless steel welded steel kav rau cov khoom siv kho tshuab). Feem ntau yog siv hauv tshuab, tsheb, tsheb kauj vab, rooj tog zaum, tsev so thiab tsev noj mov kho kom zoo nkauj thiab lwm yam khoom siv kho tshuab thiab cov khoom siv. , lwm.
GB / T12771 (stainless steel welded steel kav rau kev thauj mus los). Cov ntaub ntawv sawv cev yog 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, thiab lwm yam.
Post lub sij hawm: Feb-14-2023