ERW steel square tubing standard sizes, pre zinc coated square galvanized steel pipe 4" tube

Standard	API, ASTM, BS, DIN, GB, JIS, API 5L, ASTM A106-2006, ASTM A53-2007, BS 1387, BS 4568, BS EN 39, DIN EN 10025, GB/T 3091-2001, GB/T 13793-1992, JIS G3444-2006	Grade	Q195-Q345, Q235, Q345, Q215
Thickness	0.6 - 16 mm	Section Shape	SQUARE
Outer Diameter	20 - 406 mm	Place of Origin	Tianjin, China
Application	Furniture,Structure Or Mechanical Service,Solar panel stand	Technique	erw
Certification	ISO 9001:2000	Surface Treatment	galvanized
Special Pipe	Thick Wall Pipe	Alloy Or Not	Non-alloy
Secondary Or Not	Non-secondary	Ends	Paint,Thread Or Beveled Thread+Couplings
Zinc Coated	Can Be 30~800g/m2 According to Different Technique	Main Usage	Water or Gas Pipe/Steel Conduits/Scaffording,etc
Length	Any Length Below 16 Meter	Inspection	With Hydraulic Testing, Eddy Current, Infrared Test
Main Material	Q235 S235 SS400 Grade D,etc	Similar Products	Pre-galvanized Steel Pipe(60~160g/Square Meter Zinc Coating)
Keyword	square rectangle tube	Type	ERW Welded/Seamless Or Shaped/Round