6061 Aluminum Flat Bars - 1-1/2 Inch X 2-1/2 Inch
6061-T6 Aluminum Flat Bar - 1-1/2 Inch X 2-1/2 Inch
This 1-1/2" x 2-1/2" 6061-T6 aluminum flat bar provides an outstanding combination of strength, corrosion resistance, and workability. Conforming to ASTM B211, it is heat-treatable and offers excellent weldability, making it ideal for structural frames and machined components. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Weldability & Corrosion Resistance
6061-T6 aluminum is a precipitation-hardened alloy containing magnesium and silicon, known for its versatile mechanical properties. The T6 temper indicates it has been solution heat-treated and artificially aged to achieve its optimal strength of 45,000 PSI. This process makes it significantly stronger than non-heat-treatable grades while retaining good formability and excellent weldability, all compliant with ASTM B211 standards.
As a medium-width bar, this 1-1/2" x 2-1/2" size is perfectly suited for structural bracing, support brackets, equipment mounting plates, and machine ways. Its flat, uniform surfaces and sharp corners make it easy to drill, tap, and machine, providing a reliable foundation for fabricated assemblies and custom parts requiring a high strength-to-weight ratio.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 1-1/2" Thickness X 2-1/2" Width X 144" Length
- Finish: T6 Temper, Mill Finish
- Certifications: Mill Test Report (MTR) Available Upon Request
Applications
- Structural Fabrication: Support braces and gussets - provides rigidity without the weight of steel.
- Machinery & Automation: Mounting plates and fixtures - good machinability for custom hole patterns and profiles.
- Marine Components: Brackets and frames - excellent corrosion resistance in freshwater and marine environments.
- Architectural: Base plates and decorative supports - accepts anodizing for a durable, aesthetic finish.
Target Users
Fabricators, machinists, and engineers rely on 6061-T6 flat bar for its balanced strength and workability in structural and custom part applications throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish, which may have minor surface imperfections. For projects requiring enhanced corrosion resistance or a specific aesthetic, 6061 aluminum can be anodized, powder-coated, or polished. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Thickness (A) and Width (B). Ensure measurements are taken from the flat faces of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 1-1/2 inch by 2-1/2 inch".
Order Checklist
- Product name and required dimensions (1-1/2" x 2-1/2" 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 Bars - 1-1/2 Inch X 2-1/2 Inch
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Weldability, Good Machinability
- Primary Applications
- Structural Bracing, Machined Parts, Mounting Plates
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061-T6 Aluminum Flat Bar in widths from 1/2" to 6", thicknesses from 1/8" to 2", and lengths up to 144". This 1-1/2" x 2-1/2" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

