6061 Aluminum Flat Bars - 2-1/2 Inch X 5-1/2 Inch
6061 Aluminum Flat Bar - 2-1/2" x 5-1/2"
This 2-1/2" x 5-1/2" 6061-T6 aluminum flat bar offers a superior strength-to-weight ratio for demanding applications. Conforming to ASTM B211, it provides 45,000 PSI tensile strength, excellent weldability, and corrosion resistance, making it a primary choice for structural framing. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Weldability & Corrosion Resistance
This 6061-T6 aluminum flat bar is a heat-treatable grade with a combination of high strength, good machinability, and excellent corrosion resistance. Manufactured to meet ASTM B211 standards, its T6 temper indicates it has been solution heat-treated and artificially aged to achieve its optimal mechanical properties, including 45,000 PSI tensile strength. It is a versatile choice for a wide range of fabrication projects.
As a large-format bar, this 2-1/2" x 5-1/2" size is ideal for applications requiring substantial strength and rigidity. Common uses include manufacturing heavy structural supports, equipment base plates, die components, and large mounting blocks where dimensional stability and load-bearing capacity are essential.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 2-1/2" Thickness x 5-1/2" Width x 144" Length
- Finish: T6 Temper Mill Finish
- Certifications: Mill Test Report (MTR) Available
Applications
- Industrial Machinery: Base plates - provides a stable, strong, and flat foundation for heavy equipment.
- Structural Engineering: Gussets and support beams - excellent strength-to-weight ratio for load-bearing structures.
- Tool & Die: Jigs and fixtures - dimensionally stable and easily machined into precision tooling components.
- Transportation: Trailer frames and chassis components - offers durability and corrosion resistance while reducing overall weight.
Target Users
Machinists, fabricators, and structural engineers rely on 6061-T6 Aluminum Flat Bar for its strength and versatility in industries throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish, typical of extruded T6 temper aluminum. For specific project requirements, this material can be anodized for enhanced corrosion resistance and color, powder coated, or polished. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Thickness and Width. Use calipers for an accurate measurement of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 2-1/2 inch by 5-1/2 inch".
Order Checklist
- Product name and required dimensions (2-1/2" x 5-1/2" x 144")
- Material specification and quantity
- Confirm grade (6061-T6) meets requirements
- Surface finish requirements (Mill Finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- 6061 Aluminum Flat Bar - 2-1/2" x 5-1/2"
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, good machinability, excellent corrosion resistance
- Primary Applications
- Base plates, structural components, heavy framing
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Flat Bar in thicknesses from 1/8" to 4", widths from 1/2" to 12", and lengths up to 144". This 2-1/2" x 5-1/2" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

