Our stainless steel square tube, made from 304 and 316L grades, is produced by cold-rolled or welded processes. Its hollow square shape provides strength and corrosion resistance, making it ideal for construction, piping, supports, and decorative use.
| Element | Content (%) |
|---|---|
| C | ≤0.07 |
| Cr | 18.0–20.0 |
| Ni | 8.0–10.5 |
| Mn | ≤2.0 |
| Si | ≤1.0 |
| P | ≤0.045 |
| S | ≤0.03 |
| N | ≤0.10 |
| Property | Value | Standard |
|---|---|---|
| Density | 7.93g/cm³ | GB/T 7999 |
| Tensile Strength | ≥520MPa | GB/T 228.1 |
| Elongation | ≥40% | GB/T 228.1 |
| Salt Spray Test (NSS) | 1000h no red rust (304) | ASTM B117 |
| Weld Strength | ≥480MPa (weld joint) | GB/T 11345 |
Stainless Steel Tubes Packed in Truck
Wooden Crate Packaging in Factory
Neo-Mac Machine with Stainless Steel Tubes
Factory Tube Packaging Process
Industrial Manufacturing Equipment
Stainless Steel Composition Analyzer
Specification: 30×30×2mm 316L stainless steel square tube
Advantage Data: 5 years rust-free in 3.5% NaCl, maintenance cost 60% lower than carbon steel
Case: Coastal scenic area railing
Specification: 50×50×1.5mm seamless 304 square tubes, inner wall electrolytic polished (Ra≤0.2μm)
Advantage Data: FDA-compliant, bacterial growth rate 90% lower than regular steel pipes
Case: Fruit juice transportation
Specification: 100×100×4mm 304 welded square tubes
Advantage Data: 8m span, deflection ≤15mm, weight 30% lighter than carbon steel
Case: Large factory building beams
Cut-to-size service (up to 12 m length)
Seamless or welded production methods
Interior and exterior polishing (#4, #8 mirror)
Custom fabrication available upon request
Walmay will help match the right stainless product form and specification for your application, confirm quantities and packing needs, and provide requested documents based on order requirements.
