Black steel pipe is not really a specification but rather a generic term used primarily by plumbers to distinguish regular steel pipe from galvanized steel pipe. Black steel pipes are cast from several grades of ductile or malleable iron, whereas carbon steel pipes are generally welded or seamless. Black steel pipes are used for underground or submerged applications as well as for mainstream pipes and
ASTM A53 carbon steel pipeStandard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless. This specification covers seamless and welded black and hot-dipped galvanized steel pipe. Application:For mechanical and pressure use, and also for transporting steam, water, gas and etc. Mill test certificates will be issued according to EN10204/3.1B .
Black Tube, Hollow Section, ERW Hollow Section manufacturer / supplier in China, offering ERW Black Steel Tube/ Round Tube/ Hollow Section, Galvanised Mild C Channel Steel Light Weight C Steel Purlin Price Chart, Black Annealed Carbon Steel Rec. Pipe India by Asian Tube and so on.
China Galvanized Carbon Steel Pipe, Galvanized Carbon China Galvanized Carbon Steel Pipe manufacturers - Select 2021 high quality Galvanized Carbon Steel Pipe products in best price from certified Chinese Steel Pipe manufacturers, Galvanized Steel suppliers, wholesalers and factory on Made-in-China
China Ms CS Galvanized Pipe Rectangular Tubes Black SHS hollow square carbon steel tube black square pipes price En 10219 S355 Black Cold Finished ERW Welded Square Steel Pipe ASTM A500 ERW Black Steel Square/Rectangular Tube for Wholesales steel tubes Galvanized steel tube square pipe size 50 x 50 x 2 galvanised Pre-Galvanized Ms Square and Rectangular Steel Pipe for Window Frame Building Material
China Steel Tube/Pipe supplier, Solar Steel Brackets/Accessories, Steel Coil/Sheet Manufacturers/ Suppliers - TIANJIN SHENGTENG INTERNATIONAL TRADING CO., LTD. 38mm*38mm Pre Galvanized Hollow Section ERW Welded Iron Carbon Gi Round Steel Pipes for Construction Material 60X6mm ASTM A36 Galvanised Steel Flat Bar Sizes Mild Steel Flat Bar
ERW Steel Pipe - TIANJIN SHENGTENG INTERNATIONAL China ERW Steel Pipe catalog of Great Quality Special Shaped ERW Steel Pipe/Tube for Sale, ISO65- Carbon Steel Tubes Suitable for Screwing in Accordance with ISO 7/1 provided by China manufacturer - TIANJIN SHENGTENG INTERNATIONAL TRADING CO., LTD., page1.
Erw Ss400 40x40mm Shs Hot Dip Greenhouse Gi Pipe - TOP 3.mine liquid weld pipe,standard number I GB/T14291-2000.Representative of material Q235A,grade B steel is mainly used for mine air pressure,drainage,gas discharge shaft with a straight seam welded square tube. 4.the low pressure fluid with a large diameter welded pipe, standard number GB/T14980-1994.Representative material Q235AB level.
China Welded Steel Pipe catalog of HDG Galvanized Steel Round Pipe Greenhouse Pipe, High Standard Pre-Galvanized Square Steel Welded Tube Pipe for Modern Greenhouse provided by China manufacturer - TIANJIN WINTONG IMP AND EXP CO., LTD., page1.