Hot rolled hollow square carbon steel pipe Shape Rectangular:20*30-600*800mm Square:20*20-600*600 mm Thickness 1.0-32 mm Standard GB/T3094-2000 GB/T6728-2002 ASTM A500 JIS G 3466 DIN EN 10210 or according to customers requirement. Material Q195,Q235,Q275,Q345 20#,45# S235,S355 St33,St37,St52 A500,A513,A106 SS400 and so on. Technique Hot Rolled, ...

ASTM A500 rectangular steel pipe black pipe Products Square & Rectangular Steel Tube Standard ASTM A500 Steel   grade GR.A, B Size 10×20-400×600 Thickness 1 to 16 Length 1-12 meter Surface   treatment bare,oiled,galvanized Pipe ends Plain Square/ Rectangular Steel Pipe Material Carbon Steel Surface Hot dip galvanized Standard DIN G...

Tianjin Q195 Structural square steel pipe manufacturer Size: Length:40mm width:40mm Wall thickness: 0.4mm~60mm Material: Carbon steel & Low alloy steel Normal steel grade: ASTM A36, A53, A210C, A572 Gr.50, API 5L Gr.A, Gr.B, X42-X65, E235, E355, S195, S235, S355 Technology: Welded technology; Seamless technology Surface treatment: Naked, oil...

20×20 black square erw steel pipe Outer Diameter 20*10-400*600mm Wall thicknes 0.8-12mm Length 1-12m customized Material Q195, Q215 ,Q235 ,Q345, Q195-Q235 Standard ASTM A500,GBT 6728,GB T 3094 Zinc Coating Hot Dip Galvanzied:>200g/m2 Certificate ISO 9001-2008 Technique Welded / ERW / Cold drawn Q: Are you trading company or manufacturer ...

China black square and rectangular steel pipe specifications square Steel Tube (mm) Rectangular Steel Tube (mm) Round Steel Tube (mm) 10×10×0.6~3.0 10×20×0.6~3.0 6×0.6~1.0 15×15×0.6~3.0 20×30×0.6~3.0 12×0.6~1.5 20×20×0.6~3.0 20×40×0.6~3.0 13×0.6~1.5 25×25×0.6~3.0 25×50×0.6~3.5 16×0.6~2.0 30×30×0.6~3.5 30×50×0.6~3.5 19×0....