Different Solar trackers are deigned with different spindle steel tube, usually in square, circular, octagonal form. As an important part of trackers, the square, circular, octagonal spindle tube require high straightness and distortion. We strictly control the dimension accuracy and surface flatness of hot rolled coils from the material link, and then cut and twist the coils twice after the production of steel tube is completed. Straightening to ensure that our products fully meet the requirements of the drawings.

Pipe material is usually Q355 or 355. According to customer’s requirement, hot dip galvanizing or pre-galvanizing can be selected.

Torque Square Tube

Material: Q235B/Q345B

Standard: GB/T6728, ATM A500 Gr.B

Surface: Hot Dip Galvanizing According to ASTM A123, BS4687, GB/T13912, Pre-galvanized according to ASTM A653M G90

Specification:80*80*3mm, 100*100*4mm, 110*110*4mm,150*150*5mm

Packing: bundle packing or steel pallet packing, suitable for long distance ocean transportation

Character: Our raw material for foundation piles is hot rolled coil from China first-class iron and steel company. Perfect quality management system which can track the heat number completely. Our average thickness of hot galvanized zinc layer reaches 80 microns, we provide customized packing and overall packing plan for customers, greatly improving the safety of good and unloading speed.

Torque Round Tubes

Item: Torque Round Tubes

Material: ASTM A572 GR50, GR60, ASTM A992

Standard: ASTM A513M, GB/T3091, GB/T13793

Surface: Hot Dip Galvanizing According to ASTM A123, BS4687, GB/T13912, Pre-galvanized according to ASTM A653M G90

Specification: 114*3.0, 127*3.0

Packing: bundle packing or steel pallet packing, suitable for long distance ocean transportation

Character: Our raw material for foundation piles is hot rolled coil from China first-class iron and steel company. Perfect quality management system which can track the heat number completely. Our average thickness of hot galvanized zinc layer reaches 80 microns, we provide customized packing and overall packing plan for customers, greatly improving the safety of good and unloading speed.

Octagonal Tube

*PRODUCT: OCTAGON STEEL PIPE/OCTAGON STEEL TUBE

*DIMENSION: Various sizes

*THICKNESS: 0.3mm – 8mm

*LENGTH: 1-12meters

*MATERIAL TYPE; Carbon steel

*SURFACE: Black/galvanized/power coating etc

*STEEL GRADE:Q195/Q235/Q345/SS400/SS201/SS304 etc

*APPLICATION:cupboard,furniture,car,industry,sport,equipment,machine,industry,structure etc