6061 Aluminum Flat Bars - 1-1/4 Inch X 2-3/4 Inch
6061 Aluminum Flat Bars - 1-1/4 Inch X 2-3/4 Inch
This 2-3/4" x 1-1/4" 6061-T6 Aluminum Flat Bar is a versatile, heat-treatable grade ideal for structural applications. Conforming to ASTM B211, it combines high strength, good machinability, and excellent corrosion resistance, making it perfect for custom machine parts and framing. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Workability & Corrosion Resistance
6061-T6 aluminum is a precipitation-hardened alloy containing magnesium and silicon, known for its versatile mechanical properties. The T6 temper signifies it has been solution heat-treated and artificially aged to achieve optimal strength. Conforming to ASTM B211, this material provides a valuable combination of high strength, excellent weldability, good machinability, and superior resistance to corrosion, making it a staple for general fabrication.
As a medium-width bar, this 2-3/4" x 1-1/4" size is ideal for applications requiring more substance than smaller straps but less bulk than large plates. Common uses include structural bracing for frames, machine ways for guiding components, wear strips for high-friction areas, and mounting brackets for industrial equipment.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 2-3/4" Width x 1-1/4" Thickness x 144" Length
- Finish: T6 Temper, Mill Finish
- Certifications: Mill Test Report (MTR) Available Upon Request
Applications
- Structural Fabrication: Support braces and frames - utilizes the high strength-to-weight ratio for efficient design.
- Machinery & Equipment: Base plates and mounting blocks - excellent machinability and dimensional stability.
- Transportation: Trailer components and chassis parts - lightweight and corrosion resistant for vehicle bodies.
- Marine: Boat fittings and structural parts - good resistance to corrosion in marine environments.
Target Users
Machinists, fabricators, and structural engineers rely on 6061-T6 Aluminum Flat Bar for its predictable performance and versatility in projects throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish, characterized by a smooth, unpolished surface from the manufacturing process. 6061 aluminum is an excellent candidate for finishing; it can be anodized for enhanced corrosion resistance and color, powder coated, or polished to a bright finish. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Width (A) and Thickness (B). Ensure measurements are taken from the flat faces of the bar for accuracy.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 2-3/4" wide x 1-1/4" thick x 144" long".
Order Checklist
- Product name and required dimensions (2-3/4" x 1-1/4" 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 - 1-1/4 Inch X 2-3/4 Inch
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Machinability, Excellent Weldability
- Primary Applications
- Structural Bracing, Machine Parts, Base Plates
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Flat Bar in widths from 1/2" to 6", thicknesses from 1/8" to 2", and lengths up to 144". This 2-3/4" x 1-1/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

