Q235B Square Pipe

Our company specializes in the production and sales of square tubes, rectangular tubes, welded tubes, and special-shaped steel tubes. Our product range includes high-strength material series, low-temperature resistance series, large diameter thick-walled series, European, American, and Japanese standard series, cold rolled precision bright series, and hot-dipped galvanized series, etc.

Product applications cover a wide range: architectural steel structures (large venues, convention centers, stations, gymnasiums, residential renovation, etc.), railway bridges, vehicle manufacturing, shipbuilding, traffic facilities, machinery and equipment, wind power equipment, offshore engineering, solar photovoltaic supports, multi-level parking garages, decoration and decoration, fitness equipment, and other fields.

Square and Welded Pipe Materials and Standards: Q235B, Q345B, Q345C, Q345D, Q345E, Q355B, Q355C, Q355D, Q355E, Q355JR, Q355J2, Q355JOH, Q355J2H, Q390B/C/D/E, Q420B/C/D/E, Q460B/C/D/E, Q500 series, Q510 series, Q610 series, Q690 series, Q700 series, QSTE700TM, SPCC, SECC, SPHC, SS400, 25Mn, 65Mn, etc., with standards: GB/T6725-2008, GB/T6726-2008, GB/T6727-2008, GB/T6728-2008, GB/T3091-2008, GB/T3094-2000, GLSG3445, GLSG3446, EN10210, EN10219, etc.

Square tube specifications: 20*20 to 600*600 (1mm to 35mm)

Rectangular tube specifications: 10*20 to 600*800 (1mm to 35mm)

Welded pipe specifications: 20-800*(1mm-40mm)

Special-shaped steel pipes: capable of producing various molds, including P-shape, D-shape, elliptical, and other shapes.

Standard sizes of mechanical and construction square tubes: 50*50*5, 60*60*6, 70*70*6, 76*76*6, 80*80*8, 86*86*8, 90*90*8, 98*98*10, 108*108*10, 118*118*10, 120*120*12, 135*135*12, 200*200*12, 300*300*14, 400*400*16, 500*500*18, 600*600*20