Stainless Steel Square Tube 304 - 3 Inches X 0.25
Stainless Steel Square Tube 304 - 3" X 0.250"
This 3" x 3" 304 stainless steel square tube features a heavy 0.250" wall, ideal for structural applications. Meeting ASTM A269 standards, it provides 73,200 PSI tensile strength, excellent formability, and high corrosion resistance for frames, supports, and railings. In stock Los Angeles.
- 304 Stainless Steel Construction
- ASTM A269 Certified
- 73,200 PSI Tensile Strength
- Excellent Corrosion Resistance
Type 304 is the most common austenitic stainless steel, containing 18% chromium and 8% nickel for superior resistance to oxidation and corrosion. This welded square tube is manufactured to ASTM A269 specifications in an annealed condition, making it non-magnetic and easy to form and weld. It provides a reliable balance of strength, toughness, and fabrication characteristics.
As a medium-sized profile with a robust 0.250" wall thickness, this 3" tube provides excellent strength-to-weight performance for structural applications. It is commonly used for equipment frames, support posts, heavy-duty railings, and architectural elements where both load-bearing capacity and aesthetics are important.
Specifications
- Material: 304 Stainless Steel
- Standards: ASTM A269
- Strength/Tensile: 73,200 PSI
- Dimensions: 3" x 3" x 0.250" wall
- Finish: Annealed Mill Finish
- Certifications: MTR Available
Applications
- Structural Framing: Equipment bases and support columns - heavy 0.250" wall provides high strength and rigidity.
- Architectural: Handrails and guardrails - excellent corrosion resistance and can be polished for a clean aesthetic.
- Industrial: Machine frames and conveyors - easy to weld and fabricate into durable structures.
- Marine (Freshwater): Dock railings and supports - resists corrosion in non-saline environments.
Target Users
Fabricators, welders, architects, and engineers rely on 304 square tube for its versatility and durability in structural and decorative projects throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish from the manufacturing process. The annealed condition provides a dull, non-reflective surface. For specific project requirements, finishes such as a #4 brushed satin (180 grit) may be available via special order. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Square tube is measured by its outer width, outer height, and the wall thickness.
Example: To order this tube, specify "304 Stainless Square Tube, 3 inches by 3 inches with a 0.250-inch wall".
Order Checklist
- Product name and required dimensions (3" x 3" x 0.250" wall)
- Material specification and quantity
- Confirm grade (304) meets requirements
- Surface finish requirements (Annealed Mill Finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Stainless Steel Square Tube 304 - 3" X 0.250"
- Material
- 304 Stainless Steel
- Standards
- ASTM A269
- Key Properties
- 73,200 PSI tensile, excellent weldability, excellent corrosion resistance
- Primary Applications
- Structural framing, equipment bases, heavy-duty railings
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 304 Stainless Square Tube in sizes from 1/2" to 6" and various wall thicknesses. This 3" x 3" x 0.250" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing