Coating Square Carbon Steel Pipe Hot Dip Galvanized Rectangular Tube MS Gi Hollow

China Supply 1.0425 Carbon Steel Galvanized Square Tube/rectangular Hollow Tubular Steel Pipe

Q345B square tube is a hollow strip of steel, Q345B square tube is called Q345B square tube because of the material of Q345B.
Q345B square pipe to implement the national standard GBT 6728-2002 structure with cold formed hollow steel size, shape, weight and allowable deviation production, is Q345B strip steel after processing and rolling. Q345B square tube is its material Q345B material (low alloy) production and processing and ordinary square tube in the raw material material (Q195,Q215,Q235) has a great difference, generally is the Q345B strip steel (low alloy) after unpacking, leveling, crimping, welding to form a round tube, And then rolled by the round tube into a square tube and then cut into the required length of the commonly used length of 6 meters, 12 meters of large size can be processed according to customer requirements. Generally, the small size is 50 pieces per package, and the large size is 4 pieces per package, and the weight is controlled at about 3 tons. Q345B square tube in spot with large specifications in the majority of 80MM* 80mm-500mm *500MM, thickness in 3mm-16mm.

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