Pipe material is usually Q355 or S355. According to customer's requirements, hot dip galvanizing or pre-galvanizing can be selected.
Steel Square Torque Tube
Material: Q355,S355
Standard: GB/T6728, ASTM A500 Gr.B
Surface: Hot dip galvanized 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
Pcking: bundle packing or steel pallet packing, suitable for long ditance ocean transportation
Characters: 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 galvanied znc layer reaches 80 microns, we provide cuatomized packaging and overall packing plan for customers, greatly improving the safety of goods and unloading speed.
| Characteristic |
tolerance |
| Concavo convex degree |
Less than 0.6% of the side length and a minimum of 0.4mm |
| Twist degree |
=2+Total Length (mm)*0.5/1000 |
| Right angle |
90°±0.5° |
| Straightness |
Less than 0.2% of the total length and less than 2mm per meter |
| Length tolerance |
L(total length)+2mm |
