Updated best sell ERW black round steel pipe / Q235 construction scaffold pipe/tube, Black round steel Pipe

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Products

Product	China Supplier oil casing drilling pipe Black Steel Tube/pipe
Standard	EN10305/DIN2391
	ISO4394/1-1980
	GB/T8713-88
Material	China	20# 45#(CK45) 16Mn(ST52) 25Mn 27SiMn etc.
	German	St42-2 DIN1626,St45-8 DIN17175,St45-4 DIN1629,CK45,St52 DIN1629
	American	ASTM A53-B,ASTM A106-B,ASTM A178-C,ASTM A1045,ASTM A210-C etc.
Length	as your requirements max: 14m/45.9feet
Surface treatment	Black painting, black varnish, transparent oil, hot galvanized, 3PE, epoxy coating,BE,PE.etc.
Technique	Seamless & welded cold drawn /cold rolling /honing
Usage	1.hydraulic cylinder /pneumatic cylinder 2. Low and middle pressure fluid transportation pipeline 3.Casing Tube 4.Boiler Pipe 5. Petroleunm and natural gas industry 6.Chemistry industry 7.Electric industry
Package	1. Bundle packing. 2. Bevelled end or plain end or warnished as your required. 3. Painting varnish coating on the pipe. 4. Plastic caps at ends.
MOQ	as your needs

Descriptions	Grades
Structural pipe	20# , 35#, 45#, Q345, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2, 1020, 1045, S45C, ST52.ST37, S235, S275, S355, A572.
Liquid pipe	20# q295b-e, q345b-e
High pressure boiler tube	20G 15MnG 20MnG 15CrMoG, 12Cr1MoVG St35.8, SA106B, SA106C, SA210A, SA210C, A333P2, A333P11, A33P12, A333P22, A33P36, A333P91, A333P92, A335T2, A335T11, A335T12, A335T22, A335T91, A335T23, A335T9
Pipeline	API SPEC 5L, X42, X52, X60, X65,X70,X80 ASTMA53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245

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