6061 Aluminum Flat Bars - 1-1/4 Inch X 3 Inch
6061-T6 Aluminum Flat Bar - 3" x 1-1/4" x 144"
This 3" x 1-1/4" 6061-T6 Aluminum Flat Bar meets ASTM B211 specifications, delivering a versatile combination of 45,000 PSI tensile strength, good machinability, and excellent corrosion resistance. It is a preferred choice for structural framing and machined components. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Machinability & Weldability
6061-T6 aluminum is a precipitation-hardened alloy containing magnesium and silicon, known for its high strength-to-weight ratio. This T6 temper bar has been solution heat-treated and artificially aged to achieve optimal mechanical properties. Conforming to ASTM B211, it offers excellent weldability and corrosion resistance, making it one of the most versatile aluminum grades for general fabrication and structural applications.
As a medium-width 3" flat bar, this size is perfectly suited for structural bracing, machine ways, wear strips, and base plates where rigidity and strength are critical. Its flat, uniform surfaces provide an excellent foundation for drilling, tapping, and milling operations in custom machinery and equipment frames.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 3" Width x 1-1/4" Thickness x 144" Length
- Finish: T6 Temper, Mill Finish
- Certifications: MTR Available
Applications
- Machinery & Equipment: Base plates and frames - high strength and good machinability.
- Structural Framing: Support braces and gussets - excellent strength-to-weight ratio.
- Marine: Fittings and brackets - superior corrosion resistance in marine environments.
- Automotive: Custom brackets and chassis components - lightweight and strong.
Target Users
Machinists, fabricators, and structural engineers rely on 6061-T6 flat 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 in the T6 temper condition, characterized by a smooth, unpolished surface. For projects requiring enhanced corrosion resistance or a specific aesthetic, 6061 aluminum can be easily anodized, powder coated, or polished. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Width (A) and Thickness (B). Use calipers for an accurate measurement of both dimensions.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 3" wide by 1-1/4" thick x 144" length".
Order Checklist
- Product name and required dimensions (3" 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-T6 Aluminum Flat Bar - 3" x 1-1/4" x 144"
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Machinability, Excellent Weldability
- Primary Applications
- Structural Bracing, Machine Components, Base Plates
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Flat Bar in widths from 1/2" to 8" and thicknesses from 1/8" to 2". This 3" x 1-1/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing