Petroleum steel yeeb nkab yog ib hom hlau ntev nrog hollow seem thiab tsis muaj kev sib koom ua ke nyob ib puag ncig, thaum roj av tawg yeeb nkab yog ib hom kev lag luam seem steel.Role: dav siv hauv kev tsim cov qauv thiab cov khoom siv, xws li roj laum yeeb nkab, tsheb tsav. ncej, tsheb kauj vab thav duab thiab steel scaffolding siv nyob rau hauv kev tsim kho, thiab lwm yam.Siv roj av cracking raj los tsim lub nplhaib qhov chaw yuav txhim kho cov khoom siv tus nqi, yooj yim tsim txheej txheem, txuag cov ntaub ntawv thiab ua lub sij hawm, xws li dov bearing nplhaib, lub tes tsho, thiab lwm yam., muaj tau dav siv los tsim cov yeeb nkab steel.Petroleum cracking tube los yog ntau yam khoom siv riam phom uas tsis tseem ceeb, lub thoob, chim thiab lwm yam rau roj av cracking tube los tsim.Petroleum cracking yeeb nkab tau muab faib ua cov yeeb nkab puag ncig thiab cov yeeb nkab tshwj xeeb zoo li tus Cov duab ntawm cheeb tsam cross-sectional.Vim tias thaj tsam ntawm cov roj av tawg yeeb nkab yog qhov loj tshaj plaws nrog tib lub cheeb tsam, cov kua dej ntau tuaj yeem thauj tau nrog cov yeeb nkab ncig.

API 5CT muab faib ua K55, N80, L80, P110 thiab lwm qib steel.

Tubing J55 (37Mn5)

Casing J55 (37Mn5)

Coupling yeeb nkab J55 (37Mn5)

Petroleum steel yeeb nkab (GB / T9948-88) yog ib qho seamless steel yeeb nkab haum rau lub tshuab ua kom sov, hloov hluav taws xob thiab cov kav dej hauv cov roj av refinery.

Hlau yeeb nkab rau geological drilling (YB235-70) yog siv rau cov tub ntxhais drilling los ntawm geological department, uas yuav muab faib ua laum yeeb nkab, laum dab tshos, tub ntxhais yeeb nkab, casing yeeb nkab thiab nag lossis daus yeeb nkab raws li nws siv.

Seamless steel yeeb nkab siv tus qauv

2. av seam steel yeeb nkab rau conveying kua: GB8163-99;3. Seamless steel yeeb nkab rau boiler: GB3087-1999;4.

5, cov khoom siv chiv rau kev kub siab seamless steel yeeb nkab: GB / T6479-1999 6, geological drilling rau seamless steel yeeb nkab: YB235-70 7, roj drilling rau seamless steel yeeb nkab: YB528-65 8, roj tawg seamless steel yeeb nkab: GB9948- 88

Seamless steel yeeb nkab rau tsheb ib nrab ncej: GB3088-1999 11. Seamless steel yeeb nkab rau nkoj: GB5312-1999 12. Cold drawn txias dov precision seamless steel yeeb nkab: GB / T3639-1999

13, txhua yam seamless steel yeeb nkab 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo

Tsis tas li ntawd, kuj tseem muaj GB / T17396-1998 (kub-dov seamless steel raj rau hydraulic prop), GB3093-1986 (high-pressure seamless steel raj rau diesel cav), GB / T3639-1983 (txias-kos lossis txias- dov precision seamless steel raj), GB / T3094-1986 (txias-kos seamless steel raj tshwj xeeb-zoo li tus steel raj), GB / T8713-1988 (Precision puab txoj kab uas hla seamless steel raj rau hydraulic thiab pneumatic thooj voos kheej kheej), GB13296-1991 (seamless stainless hlau raj rau boilers thiab tshav kub exchangers), GB / T14975-1994 (seamless stainless hlau raj rau cov qauv), GB / T14976-1994 (seamless stainless hlau raj rau dej thauj) GB / T5035-1993 (tsheb) Seamless steel raj rau bushing yeeb nkab), API SPEC5CT-1999 (specification rau casing thiab tubing), thiab lwm yam.