GB13296-2013 (Seamless steel kav 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 yeeb nkab. 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 / T14976-2012 (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/T5035-2010 (Seamless steel kav rau tsheb qag tes tsho). 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 qag raj ntawm tsav qag tsev. Nws cov ntaub ntawv sawv cev yog 45, 45Mn2, 40Cr, 20CrNi3A, thiab lwm yam.

API SPEC 5L-2018 (kab yeeb nkab specification), muab tso ua ke thiab tawm los ntawm American Petroleum Institute, feem ntau siv thoob plaws ntiaj teb.

Kab yeeb nkab: suav nrog seamless thiab welded kav. Cov yeeb nkab kawg muaj qhov xaus, threaded xaus thiab lub qhov (socket) xaus; txoj kev sib txuas yog qhov kawg vuam, coupling kev twb kev txuas, qhov (socket) txuas, thiab lwm yam. Cov ntaub ntawv tseem ceeb yog GR.B, X42, X52. X56, X65, X70 thiab lwm qib steel.

API SPEC5CT-2012 (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.

hauv:

Casing: Cov yeeb nkab uas txuas los ntawm cov av saum npoo mus rau hauv lub qhov dej thiab ua haujlwm raws li cov phab ntsa zoo. Cov kav dej yog txuas nrog couplings. Cov ntaub ntawv tseem ceeb yog qib steel xws li J55, N80, thiab P110, thiab qib steel xws li C90 thiab T95 uas tiv taus hydrogen sulfide corrosion. Nws qib qis steel (J55, N80) tuaj yeem welded steel yeeb nkab.

Tubing: Ib lub yeeb nkab tso rau hauv lub casing los ntawm cov av saum npoo av mus rau cov roj txheej, thiab cov kav dej txuas nrog cov couplings los yog kev sib koom ua ke. Nws txoj haujlwm yog tso cai rau lub twj tso kua mis thauj cov roj los ntawm cov roj txheej mus rau hauv av los ntawm cov tubing. Cov ntaub ntawv tseem ceeb yog qib steel xws li J55, N80, P110, thiab C90, T95 uas tiv taus hydrogen sulfide corrosion. Nws qib qis steel (J55, N80) tuaj yeem welded steel yeeb nkab.