**Chinese Standard GB/T 3091,GB/T 9711,GB/T 13793,GB/T 6728; **US Standard ASTM A500,ASTM A53,API 5L ,**British Standard BS1387,EN39,EN10219 black or galvanized square/rectangular steel pipe and seamless pipe.Youfa brand was affirmed as a China renowned brand by SAIC trademark bureau in March 2008.Youfa brand of ERW steel pipes China ERW Welded Steel Pipe GB/T 9711.1 L245 - China Erw HS Code.7306190000.Product Description.Name API 5L Welded Steel Pipe.Standards GB/T 9711.1.Steel Grades L245.OD 219.1-660.4mm.WT 5-22mm.Length 20m maximum.
ERW steel pipe is in accordance with API-5L standard or GB / T 9711.1-1997 standard.These standards do not specify the temperature range of ERW welded pipe,and the discussion is as follows 1.Regarding the range of welded steel pipes suitable for high temperature areas foreign countries also use seamed pipes under high temperature and high pressure.GB/T13793-2008 Q235B welded and seamless steel pipe -GB/T13793-2008 Q235B welded steel pipe is BBN Steel main production of steel,Q235B welded steel pipe mainly for the transmission of oil and gas pipelines,pressure fluid transport,can be used plastic cap packaging,packing or bulk or marine packaging or according to customer requirements can be exposed,surface can painted black paint,galvanized wait.
GB/T 9711.2 L415MB.26.2km 1610tons.5.Anqing Product Oil Pipeline.GB/T 9711.2 L415MB.117.6km 8221tons.6.CNOOC Pipeline in Iran,Sour Service.API SPEC 5L X52MS PSL2.12km 813tons.7.CNOOC Pipeline in Iran,Sour Service.API SPEC 5L X52MS PSL2.28km 2693tons.8 Chad Permit H Crude Oil .Transportation Pipeline Project.API SPEC 5L X60M Pipeline API SPEC 5LISO 3183,GB/T 9711 Hebei
Item spiral pipe L485,spiral steel pipe,steel pipe,spiral steel tube,spiral tube.Standards.JIS G3461-2005,GB/T 9711.1-1997,GB 9948-2006,DIN 17175,ASTM A213-2001
Grades API 5L A-X90,GB/T9711 L190-L625 JOCE LSAW PIPES(PRESS BENDING) This is large diameter longitudinal submerged arc welded (LSAW) pipe production line in China.
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