1. Key Features of Weathering Steel SHS
Atmospheric Corrosion Resistance – Forms a protective rust patina.
High Strength-to-Weight Ratio – Strong yet lightweight.
Low Maintenance – No painting required in most environments.
Modern Industrial Aesthetic – Rusty orange-brown finish.
2. Common Grades & Standards
| Grade | Standard | Key Properties |
|---|---|---|
| Corten A | ASTM A242 | General weathering resistance, thinner sections |
| Corten B | ASTM A588 | Higher strength, better for load-bearing structures |
| SPA-H | JIS G3125 | Japanese equivalent, common in Asia |
| A847 | ASTM A847 | High-strength, low-alloy (HSLA) weathering steel tubes |
Available Sizes (Typical Range):
20x20mm to 400x400mm (or custom)
Wall Thickness: 1.5mm – 20mm
3. Applications of Weathering Steel SHS
A. Structural Uses
Bridges & Highway Girders (e.g., exposed steel frameworks)
Transmission Towers & Poles
Warehouse & Industrial Supports
B. Architectural & Design Uses
Facade Framing & Cladding Supports
Sculptures & Public Art Installations
Outdoor Benches, Pergolas, & Railings
C. Marine & Coastal (With Precautions)
Harbor Structures (if properly designed for drainage)
Boardwalks & Pier Supports
4. Advantages Over Regular Steel Hollow Sections
No Painting Needed – Saves long-term maintenance costs.
Unique Aesthetic – Rusted look blends with natural environments.
Better Lifespan – Lasts decades in moderate climates.
5. Limitations & Considerations
⚠ Not Ideal for Constant Wet/Dry Cycling – Requires proper drainage.
⚠ Initial Rust Runoff – May stain concrete/stone (use drip edges).
⚠ Higher Cost Than Mild Steel – But cheaper than stainless steel.
