Key Features of Stainless Steel Square Tubes
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High corrosion resistance for indoor and outdoor structures
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Excellent mechanical stability and uniform wall thickness
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Smooth weld seam and high dimensional precision
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Versatile fabrication—easy to cut, bend, polish, and weld
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Available in multiple grades (201 / 304 / 316L / 409 / 2205)
- Cost-effective long-term performance
Our square stainless steel tubes are designed to deliver consistent performance in challenging environments such as coastal regions, chemical plants, food facilities, and high-humidity areas.
Product Specifications
| Category |
Details |
| Product Name |
Stainless Steel Square Tube / Square Hollow Section |
| Grades Available |
201, 304, 304L, 316, 316L, 409, Duplex 2205 |
| Standards |
ASTM, AISI, GB, JIS, EN, DIN |
| Dimensions |
Side Width: 10–500 mm, Wall Thickness: 0.5–20 mm
|
| Length |
1–12 m or customized |
| Finishes |
2B, BA, No.4, Mirror, Brushed, Pickled |
| MOQ |
1 MT |
| Packaging |
Plastic film, woven bag, steel bundle, wooden crate |
How We Manufacture Stainless Steel Square Tubes
Our production line ensures consistent quality across every batch. The process includes:
1. Material Preparation
Selected stainless steel sheets or coils are inspected for chemical composition and surface quality.
2. Cutting & Strip Formation
Material is slit and cut to required widths depending on final tube size.
3. Tube Forming
Coils are shaped into square profiles using advanced roll-forming equipment for stable geometry.
4. High-Precision Welding
Laser welding or TIG welding guarantees strong seam integrity and minimal distortion.
5. Heat Treatment
Annealing improves corrosion resistance and restores ductility.
6. Surface Treatment
The tubes undergo polishing or pickling for optimal finish and improved cleanliness.
7. Inspection & Testing
Dimensional checks, flattening tests, hydrostatic pressure tests, and mechanical strength evaluations are conducted to meet international standards.
8. Safe Packaging
Each batch is securely packed to prevent surface damage during handling and shipment.
Applications of Stainless Steel Square Tubes
Stainless steel square tubes are used in various industries due to their reliability and appearance. Here are some typical applications:
| Industry |
Usage Examples |
| Construction & Architecture |
Support frames, railings, window structures, decorative columns |
| Machinery & Equipment |
Machine frames, conveyors, structural supports |
| Automotive |
Exhaust systems, safety frames, chassis parts |
| Furniture Manufacturing |
Table frames, storage racks, interior structures |
| Infrastructure |
Bridges, walkway rails, public facilities |
| Energy & Utilities |
Power equipment frames, heat exchanger supports |
| Medical & Food Processing |
Hygienic structures, equipment frames, carts |
| Marine Engineering |
Corrosion-resistant components, offshore structures |
| Aerospace |
Lightweight structural elements |
If you need corrosion-resistant, load-bearing tubing for harsh environments, stainless steel square tubes offer unmatched longevity and performance.
Why Choose Us as Your Stainless Steel Square Tube Partner?
- ✔ Wide grade availability from economical 201 to high-performance 316L & duplex grades
✔ Full customization in dimensions, cutting, polishing & fabrication
✔ Strict inspection & documentation (MTC available for all orders)
✔ High export standards with professional packaging & global shipping
✔ Fast delivery and stable supply capacity
We supply stainless steel square tubes to distributors, contractors, engineering firms, and OEM manufacturers worldwide.
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