Square Steel Pipe Standard: GB/T (6728) and ASTM (A500, A36)
Square Steel Pipe Size: 10 x 20 to 300 x 500mm
Square Steel Pipe Wall thickness: 0.4 to 14mm
Square Steel Pipe coating: Hot dip galvanized coating, black paint, clear oil.
Square Steel Pipe Packing: Labeled and bundled together with steel strip
Square Steel Pipe Steel grade: A, B, Q195, Q235, Q345, 16Mn and 15CrMo
Square Steel Pipe Application: Structure steel pipe for furniture, door, window, frame.