Cov kav hlau tsis muaj qhov sib xyaw ua ke tau muab faib ua ob hom: cov kav hlau tsis muaj qhov sib xyaw ua ke kub-dov (extruded) thiab cov kav hlau tsis muaj qhov sib xyaw ua ke txias-dov (dov) vim lawv cov txheej txheem tsim khoom sib txawv.
Txheej txheem cej luam: kub dov (extruded seamless steel yeeb nkab): lub raj kheej kheej kheej → cua sov → tho → peb-yob hla dov, txuas ntxiv dov lossis extrusion → tshem tawm lub raj → sizing (lossis txo) → txias → lub raj kheej kheej kheej.
Vim lawv siv sib txawv, cov kav hlau tsis muaj seamless tau muab faib ua ntau yam hauv qab no: GB / T8162 (cov kav hlau tsis muaj seamless rau cov hom phiaj kev tsim kho), Carbon steel No. 20 thiab No. 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, thiab lwm yam.
GB/T8163 (cov kav hlau tsis muaj qhov sib txuas rau kev xa cov kua dej). Nws yog siv rau kev xa cov kav dej kua dej ntawm kev tsim kho thiab cov khoom siv loj. Cov ntaub ntawv sawv cev (qib) yog 20, Q345, thiab lwm yam.
GB3087 (cov kav hlau tsis muaj qhov sib txuas rau cov boilers siab qis thiab nruab nrab). Nws yog siv rau cov kav dej rau kev xa cov kua dej siab qis thiab nruab nrab hauv cov boilers kev lag luam thiab cov boilers hauv tsev. Cov ntaub ntawv sawv cev yog No. 10 thiab No. 20 hlau.
GB5310 (cov kav hlau tsis muaj qhov tsis sib xws rau cov boilers siab siab). Nws yog siv rau qhov kub thiab txias siab thauj cov kua dej thiab cov kav dej ntawm cov boilers hauv cov chaw tsim hluav taws xob thiab cov chaw tsim hluav taws xob nuclear. Cov ntaub ntawv sawv cev yog 20G, 12Cr1MoVG, 15CrMoG, thiab lwm yam.
GB5312 (cov kav hlau carbon thiab carbon-manganese steel seamless rau cov nkoj). Nws yog siv rau cov kav dej siab Class I thiab II rau cov nkoj boilers thiab superheaters. Cov ntaub ntawv sawv cev yog 360, 410, 460 steel qib, thiab lwm yam.
GB1479 (cov kav hlau tsis muaj qhov sib txuas rau cov khoom siv chiv siab). Nws feem ntau yog siv los thauj cov kav dej kub thiab siab rau cov khoom siv chiv. Cov ntaub ntawv sawv cev yog 20, 16Mn, 12CrMo, 12Cr2Mo, thiab lwm yam.
GB9948 (cov kav hlau tsis muaj qhov sib txuas rau kev tawg roj av). Feem ntau siv rau hauv cov boilers, cov hloov pauv cua sov thiab cov kav dej rau kev xa cov kua dej hauv cov roj av smelters. Nws cov ntaub ntawv sawv cev yog 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb thiab lwm yam.
GB3093 (cov yeeb nkab hlau siab siab seamless rau lub cav diesel). Nws yog siv rau cov yeeb nkab roj siab ntawm cov tshuab txhaj tshuaj diesel. Cov yeeb nkab hlau feem ntau yog cov yeeb nkab txias, thiab nws cov khoom sawv cev yog 20A.
GB/T3639 (cov kav hlau tsis muaj qhov txias lossis cov kav hlau txias uas tsis muaj qhov txias). Feem ntau siv rau cov qauv kho tshuab thiab cov khoom siv carbon, cov kav hlau uas xav tau qhov tseeb siab thiab qhov tiav zoo. Nws cov khoom siv sawv cev yog 20, 45 hlau thiab lwm yam.
GB/T3094 (cov yeeb nkab steel yeeb nkab uas tsis muaj qhov txias thiab tsis muaj qhov sib txawv). Nws yog siv los ua ntau yam khoom siv thiab cov khoom siv, thiab nws cov khoom siv yog cov hlau zoo thiab cov hlau tsis muaj hlau.
GB/T8713 (Precision sab hauv txoj kab uas hla seamless hlau raj rau hydraulic thiab pneumatic lub tog raj kheej). Nws yog feem ntau yog siv los ua txias-kos lossis txias-dov seamless hlau raj nrog meej sab hauv txoj kab uas hla rau hydraulic thiab pneumatic lub tog raj kheej. Nws cov ntaub ntawv sawv cev yog 20, 45 hlau thiab lwm yam.
GB13296 (cov kav hlau tsis xeb rau cov boilers thiab cov cua sov hloov pauv). Nws yog siv rau hauv boilers, superheaters, heat exchangers, condensers, catalytic tubes, thiab lwm yam ntawm cov tuam txhab tshuaj lom neeg. Nws cov ntaub ntawv sawv cev yog 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, thiab lwm yam.
GB/T14975 (cov yeeb nkab hlau tsis xeb uas tsis xeb rau kev siv hauv cov qauv). Nws yog siv rau cov qauv dav dav (tsev so, kho kom zoo nkauj hauv tsev noj mov) thiab cov qauv kho tshuab hauv kev lag luam tshuaj lom neeg uas tiv taus huab cua, kua qaub corrosion thiab cov yeeb nkab hlau nrog qee lub zog. Nws cov ntaub ntawv sawv cev yog 0-3Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, thiab lwm yam.
GB/T14976 (cov yeeb nkab hlau tsis xeb rau kev thauj mus los hauv dej). Nws yog siv rau cov kav dej xa cov khoom siv corrosive. Cov ntaub ntawv sawv cev yog 0Cr13, 0Cr18Ni9, 1Cr18Ni9Ti, 0Cr17Ni12Mo2, 0Cr18Ni12Mo2Ti, thiab lwm yam.
YB/T5035 (cov kav hlau tsis muaj qhov sib txuas rau lub tsheb qag ncej casings). Nws yog siv los ua cov hlau zoo carbon thiab alloy structural steel kub-dov seamless steel kav rau lub tsheb ib nrab-axle casings thiab qag raj rau drive axle casings. Nws cov ntaub ntawv sawv cev yog 45, 45Mn2, 40Cr, 20CrNi3A thiab lwm yam.
API SPEC5CT (Casing thiab Tubing Specification) yog muab tso ua ke thiab luam tawm los ntawm American Petroleum Institute (American Petreleum Institute, hu ua "API") thiab feem ntau siv thoob plaws ntiaj teb.
Ntawm lawv, casing: cov yeeb nkab txuas ntxiv los ntawm qhov av mus rau hauv lub qhov dej raws li lub hauv paus ntawm phab ntsa qhov dej, thiab cov yeeb nkab txuas nrog cov collars. Cov ntaub ntawv tseem ceeb yog cov hlau qib xws li J55, N80, thiab P110, thiab cov hlau qib xws li C90 thiab T95 uas tiv taus hydrogen sulfide corrosion.
Cov yeeb nkab roj: Ib cov yeeb nkab uas tau ntxig rau hauv lub plhaub los ntawm qhov chaw hauv av mus rau txheej roj, thiab cov yeeb nkab tau txuas nrog los ntawm kev sib txuas lossis kev sib koom ua ke. Cov ntaub ntawv tseem ceeb yog J55, N80, P110, thiab cov qib hlau xws li C90 thiab T95 uas tiv taus hydrogen sulfide corrosion. API SPEC 5L (Line Pipe Specification), sau thiab luam tawm los ntawm American Petroleum Institute, feem ntau siv thoob ntiaj teb. Cov yeeb nkab kab: nws yog los thauj cov roj, roj av lossis dej los ntawm lub qhov mus rau kev lag luam roj thiab roj los ntawm cov yeeb nkab kab.
Cov kav dej kab muaj xws li cov kav dej tsis muaj qhov thiab cov kav dej vuam, thiab cov kav dej kawg muaj cov kawg tiaj tus, cov kawg xov thiab cov kawg qhov (socket); cov txheej txheem txuas yog vuam kawg, txuas lub dab tshos, txuas lub qhov (socket), thiab lwm yam. Cov khoom siv tseem ceeb ntawm cov kav dej yog B, X42, X56, X65, X70 thiab lwm yam hlau.
Cov khoom seem siv rau cov kav hlau vuam yog cov hlau phaj lossis cov hlau strip. Vim lawv cov khoom siv thiab cov txheej txheem sib txawv, cov kav hlau vuam raug muab faib ua cov kav hlau vuam hauv qhov cub, cov kav hlau vuam hluav taws xob (vuam tsis kam) thiab cov kav hlau vuam arc tsis siv neeg. Vim nws qhov kawg zoo li cas, nws raug muab faib ua cov kav hlau vuam puag ncig thiab cov kav hlau vuam zoo li tshwj xeeb (square, tiaj tus, thiab lwm yam) rau ntau lub hom phiaj sib txawv, thiab raug muab faib ua ntau hom hauv qab no:
GB/T3091 (galvanized welded steel yeeb nkab rau kev xa dej tsawg-siab). Feem ntau yog siv rau kev xa dej, roj, cua, roj thiab cua sov dej kub lossis pa thiab lwm yam kua dej qis dua thiab lwm yam. Nws cov khoom sawv cev yog Q235A qib hlau.
GB/T3092 (galvanized welded steel yeeb nkab rau kev xa dej tsawg-siab). Feem ntau siv rau kev xa dej, roj, cua, roj thiab cua sov dej kub lossis pa thiab lwm yam kua dej qis dua thiab lwm yam. Nws cov khoom sawv cev yog: Q235A qib hlau.
GB/T14291 (cov kav hlau vuam rau cov dej hauv kuv lub cev). Nws yog siv rau cov kav hlau vuam ncaj rau cov cua hauv kuv lub cev, cov dej ntws, thiab cov pa tawm ntawm lub qhov. Nws cov khoom siv sawv cev yog Q235A thiab B qib hlau.
GB/T14980 (Cov kav hlau loj uas siv hluav taws xob vuam rau kev xa dej tsawg-siab). Feem ntau siv rau kev xa dej, dej phwj tuaj, roj, cua sov, cua sov thiab lwm yam kua qis-siab thiab lwm yam. Nws cov khoom siv sawv cev yog Q235A qib hlau.
GB/T12770 (cov kav hlau tsis xeb uas vuam rau cov qauv kho tshuab). Feem ntau siv rau hauv cov tshuab, tsheb, tsheb kauj vab, rooj tog, kho kom zoo nkauj hauv tsev so thiab tsev noj mov thiab lwm yam khoom siv kho tshuab thiab cov khoom siv. Nws cov ntaub ntawv sawv cev yog 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, thiab lwm yam.
GB/T12771 (cov kav hlau tsis xeb uas txuas nrog cov kav dej rau kev thauj mus los hauv dej). Cov ntaub ntawv sawv cev yog 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, thiab lwm yam.
Lub sijhawm tshaj tawm: Lub Ob Hlis-14-2023