ASTM A554 304 Stainless Steel Square Tube 10x10mm-300x300mm 0.5mm-12mm Wall Thickness for Architectural Structures
Product Introduction
Our ASTM A554 304 stainless steel square tube is cold-formed from precision-rolled stainless steel strip and TIG welded for consistent quality. Each tube features uniform wall thickness, excellent straightness, and a smooth weld seam that blends seamlessly with the base material after polishing. Available in multiple surface finishes from 180 grit brushed to mirror polish, these square tubes meet the aesthetic and structural demands of modern architectural projects while providing the corrosion resistance expected from 304 grade stainless steel.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | Stainless Steel Square Tube |
| Standard | ASTM A554 / A554M |
| Steel Grade | 304 |
| Size Range | 10mm x 10mm - 300mm x 300mm |
| Wall Thickness | 0.5mm - 12mm |
| Length | 6m Standard, Custom Cut Available |
| Surface Finish | 180/240/320/400 Grit Brushed, Mirror |
| Corner | R=2T Standard, Sharp Corner Available |
| Welding | TIG Welded, Cold Formed |
| Inspection | Visual, Dimensional, PMI |
Chemical Composition (wt%)
| Parameter | Specification |
|---|---|
| Carbon (C) | ≤0.08 |
| Manganese (Mn) | ≤2.00 |
| Silicon (Si) | ≤1.00 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.030 |
| Chromium (Cr) | 18.0-20.0 |
| Nickel (Ni) | 8.0-10.5 |
Mechanical Properties
| Parameter | Specification |
|---|---|
| Tensile Strength | ≥515 MPa |
| Yield Strength | ≥205 MPa |
| Elongation | ≥35% |
| Hardness | ≤201 HBW |
Application Areas
Architectural building structures, Staircase and balcony handrails, Curtain wall framing systems, Interior decorative elements, Furniture and display fixtures, Exhibition stand construction, Glass partition support systems, Retail store fit-out components
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