Zinc Coated Industrial Square Steel Tube

Due to our broad industry expertise and skills, we are manufacturing, exporting and supplying an extensive range of Industrial Square Steel Tube in Cangzhou, Hebei, China.

Outside Diameter : 20mm*30mm-600mm*1000mm
Wall Thickness : 2mm-35mm
Length : 6m-12m , or as per customera s requirements
Steel Grade : Q195, Q235, Q345(16Mn), STKR400/490, A500, ST37/44/52, S235, S275, S355, etc.
Standards : DIN EN10210, EN10219, GB/T3094-2000, ASTM A500, JIS G 3466, GB/T6728-2002.
Surface Treatment : anti-rust oil, black painting, galvanizing
Packing : in bundles with steel strips or in bulk as per customer request
Applications : Construction framework, trestle, motorcar cassis, flight terminal framework, shipbuilding, automobile axle pipe, MRT and so on.
The mostly used sizes ( for seamless and welded square steel pipe) are as below:
30 * 30 *( 2-4mm) a a 50 * 50 *( 2-5mm) a a 80 * 80 *( 3-10mm).
100 * 100 *( 3-16mm) a a 135 * 135 *( 4-16mm) a a 140 * 140 *( 4-18mm).
150 * 150 *( 4-20mm) a a 180 * 180 *( 5-20mm) a a 220 * 220 *( 6-20mm).
250 * 250 *( 5-25mm) a a 300 * 150 *( 6-20mm) a a 300 * 180 *( 8-20mm).
500 * 500 *( 8-25mm) a a 400 * 400*( 8-22mm) a a 450 * 450 *( 8-22mm).
300 * 200 *( 6-20mm) a a 350 * 300 *( 8-22mm) a a 350 * 350 *( 8-22mm).
400 * 250 *( 8-25mm) a a 450 * 300 *( 8-25mm) a a 450 * 480 *( 9-25mm).
500 * 300 *( 8-25mm) a a 600*400*(8-30mm)