Stainless Steel Square Tube (ASTM A554) Round & Square | Factory Price
Stainless Steel Square Tube / Box Section (ASTM A554)
- Premium Grades: 304 (Luxury interior & Food Grade) and 316L (Highly corrosive marine/chlorine areas)
- Dimensional Range: Precise 12.7 x 12.7 mm to 50 x 50 mm+ (Thickness 1.0 - 6.0 mm)
- Aesthetic Finishes: Mirror Polish (Super Mirror) and Satin Hairline (HL)
- Processing & Logistics: Custom Bandsaw Cutting, Mill Test Certificate (MTC), & Scratch-Free Delivery
Symmetrical profile offers balanced dual-axis load distribution. Flat faces ensure tighter, easier welding than round tubes.
Industrial Material
Why Do Modern Architects & Furniture Builders Specify Stainless Steel Square Tubes?
For high-end furniture makers and architectural facade fabricators, Stainless Steel Square Tubes (also known as Square Hollow Sections or Box Sections) are one of the most efficient materials to work with. Thanks to their flat faces, cutting exact 45-degree miters and achieving seamless flat-to-flat welding (Welding) is exceptionally fast and clean compared to dealing with the curved intersections of round tubing. This saves fabricators considerable time and on-site labor costs.
Furthermore, in terms of structural engineering, a square hollow section provides symmetrical geometry. This ensures balanced load-bearing capability and high rigidity across both axes, making it a highly reliable and modern choice for structural columns, racking, and support frames.
Premium ASTM A554 Standard: Precision Internals and Flawless Surface
Our square stainless steel tubes are manufactured strictly to the ASTM A554 standard for mechanical and ornamental tubing, offering distinct advantages:
- Internal Bead Rolled: The internal weld seam is rolled flat and smoothed out during production. This allows fabricators to slide in internal reinforcing bars, sleeves, or modular connector fittings (Fittings) seamlessly without jamming.
- Flat and Uniform Surface: Strict control over flatness to prevent bowing, denting, or surface waving. Available in highly reflective Mirror finish or brushed Satin Hairline (HL) finish, protected by a heavy-gauge protective film.
Technical Specifications
Standard: ASTM A554 (Welded Stainless Steel Mechanical Tubing)
Available Grades: 304, 304L, 316L (Highly recommended for marine and coastal structural trims)
Standard Length: 6.0 Meters (6000 mm) *Custom bandsaw cutting (Cut-to-Length) available
Standard Weight Chart: Stainless Steel Square Tube (kg per 6m)
| Size (mm) | Wall Thickness (mm) | |||||||
|---|---|---|---|---|---|---|---|---|
| 1.0 mm | 1.2 mm | 1.5 mm | 2.0 mm | 3.0 mm | 4.0 mm | 5.0 mm | 6.0 mm | |
| 12.7 x 12.7 | 2.39 | 2.87 | - | - | - | - | - | - |
| 15.87 x 15.87 | 2.99 | 3.59 | - | - | - | - | - | - |
| 19.05 x 19.05 | 3.59 | 4.31 | 5.38 | 7.18 | - | - | - | - |
| 20 x 20 | 3.77 | 4.52 | 5.65 | - | - | - | - | - |
| 25 x 25 | - | 5.65 | 7.07 | 9.42 | - | - | - | - |
| 30 x 30 | - | 6.78 | 8.48 | 11.30 | - | - | - | - |
| 40 x 40 | - | 9.04 | 11.30 | 15.07 | 22.61 | - | - | - |
| 50 x 50 | - | 11.30 | 14.13 | 18.84 | - | - | - | - |
| For oversized square boxes such as 75x75, 100x100 mm, custom thicknesses, or non-standard dimensions, please consult our sales team for real-time inventory. | ||||||||
✓ Available in Mirror and Hairline finishes | *Weights are theoretical estimates for transportation purposes.
Primary Premium Applications
- Architectural Cladding: Symmetrical column supports, gate frames, modern fencing posts, balustrades, and external louvers (Architectural Columns & Fences).
- Premium Furniture: Minimalist desk frames, dining chair legs, luxury display shelves, and high-end condominium fittings.
- Exhibitions & Events: Modern structural framing for trade show booths, retail shopfittings, and heavy-duty banner backdrops.
- Building Facades: Ornamental stainless steel sunscreens and architectural cladding panels that elevate building value.
