1 Black Welded Square Steel Pipe Q235 Q345 2 Standard:GB/T3094,6728-2002,ASTM A500,EN10219 3 Material:Q235,Q345,20#

	mm) Wall Thickness		mm) Wall Thickness		mm) Wall Thickness
Square Steel Pipe	20x20	1.2-4.0	60x80	1.5-5.0	110x110	1.5-5.0
	30x30	1.2-4.0	70x70	1.5-5.0	120x120	1.5-5.0
	40x40	1.2-4.0	80x80	1.5-5.0	125x125	1.5-5.0
	50x50	1.2-4.0	90x90	1.5-5.0	130x130	1.5-5.0
	60x60	1.2-4.0	100x100	1.5-5.0	140x140	1.5-5.0
					150x150	1.5-5.0

Black Welded Square Steel Pipe Q235 Q345