6061 Aluminum Squares - 2-3/4 Inches
6061-T6 Aluminum Square Bar - 2-3/4" x 2-3/4" x 144"
This 2-3/4" 6061-T6 aluminum square bar offers a high strength-to-weight ratio for demanding structural jobs. Certified to ASTM B211, it provides 45,000 PSI tensile strength, excellent machinability, and superior corrosion resistance. Ideal for structural frames and machined components. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Machinability & Weldability
6061-T6 is a precipitation-hardened aluminum alloy containing magnesium and silicon, delivering an exceptional combination of strength, workability, and corrosion resistance. Manufactured to meet ASTM B211 standards, this structural alloy is easily machined, welded, and finished. The T6 temper indicates it has been solution heat-treated and artificially aged to achieve its optimal strength properties.
The large 2-3/4" cross-section provides substantial structural integrity, making it suitable for heavy-duty applications. Common uses include heavy equipment mounting, robust framing for machinery, support brackets in construction, and large tooling plates where stiffness and strength are critical design factors.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 2-3/4" x 2-3/4" x 144"
- Finish: T6 Temper Mill Finish
- Certifications: MTR Available
Applications
- Structural Framing: Support columns, beams, and heavy braces - high strength-to-weight ratio.
- Machinery: Heavy-duty base plates, jigs, and fixtures - excellent machinability and stability.
- Transportation: Chassis components and structural supports - good strength and corrosion resistance.
- Tool & Die: Large fixtures and mounting blocks - dimensionally stable and easily worked.
Target Users
Fabricators, machinists, and structural engineers rely on 6061-T6 square bar for its reliable performance and versatility in industrial applications throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish, reflecting the raw extruded condition with a T6 temper. For specific project requirements, other finishes such as anodizing or powder coating may be available via special order. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Square bar is measured by the length of one of its sides (A) and its overall length (L). As the sides are equal, only one side measurement is needed for the cross-section.
Example: To order this square bar, specify "6061 Aluminum Square Bar, 2-3/4 inch x 144 inch length".
Order Checklist
- Product name and required dimensions (2-3/4" x 2-3/4" x 144")
- Material specification and quantity
- Confirm grade (6061-T6) meets requirements
- Surface finish requirements (T6 Mill Finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- 6061-T6 Aluminum Square Bar - 2-3/4" x 144"
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Machinability, Excellent Weldability
- Primary Applications
- Structural Frames, Machinery Base Plates, Jigs & Fixtures
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Square Bar in sizes from 1/4" to 4" and lengths up to 144". This 2-3/4" x 144" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

