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| Parameter | Details |
|---|---|
| Name | Mild Steel Hollow Square Cross Section Tubes Mechanical Manufacture |
| Specification | 20mm x 20mm - 800mm x 800mm / 20mm x 30mm - 400mm x 800mm |
| Wall Thickness | 1.0mm - 30mm |
| Length | 1m - 16m or Customized |
| Steel Material | Q195 (SS330, ST37), Q235 (SS400, S235JR), Q345 (S355JR, SS500, ST52) |
| Surface Treatment | Bared, Black Painted, Galvanized, Oiled, PE/3PE/FBE Coating |
| Spec (mm) | Thickness (mm) | Spec (mm) | Thickness (mm) | Spec (mm) | Thickness (mm) | Spec (mm) | Thickness (mm) |
|---|---|---|---|---|---|---|---|
| 15*15 | 0.6-2.2 | 16*16 | 0.6-2.0 | 18*18 | 0.6-2.0 | 20*20 | 0.6-2.0 |
| 25*25 | 0.6-3.0 | 30*30 | 0.8-3.0 | 34*34 | 1.0-3.5 | 38*38 | 1.0-3.5 |
| 40*40 | 1.0-3.5 | 50*50 | 1.2-4.0 | 60*60 | 1.2-4.0 | 80*80 | 1.2-5.0 |
| 100*100 | 1.2-6.0 | 150*150 | 3.75-8.0 | 200*200 | 4.0-12 | 400*400 | 4.0-12 |
Black steel square pipes are widely utilized for glass curtain walls, power towers, communication grids, water and gas transmission, wire sleeves, housing construction, bridge engineering, and various metal structures due to their exceptional durability and performance.

Equipped with advanced processing and testing systems including:



Dactron Pipe