6061 Aluminum Flat Bars - 5/16 Inch X 3/4 Inch
6061-T6 Aluminum Flat Bar - 5/16" x 3/4"
This 5/16" x 3/4" 6061-T6 Aluminum Flat Bar is a versatile, general-purpose structural alloy. Conforming to ASTM B211, it combines high strength (45,000 PSI tensile), good machinability, and excellent weldability, making it ideal for structural frames and custom parts. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Corrosion Resistance
6061-T6 aluminum is a precipitation-hardened alloy with magnesium and silicon as its main alloying elements, delivering a versatile combination of high strength, good corrosion resistance, and excellent weldability. This flat bar conforms to ASTM B211 and its T6 temper indicates it has been solution heat-treated and artificially aged to achieve its optimal strength properties, making it a go-to for general fabrication.
As a small-profile bar, this 5/16" x 3/4" size is particularly well-suited for creating lightweight brackets, support straps, shims, and small frame components where precision and moderate strength are key. Its flat, consistent surfaces are easy to drill, tap, and machine for custom parts.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 5/16" Thickness x 3/4" Width x 144" Length
- Finish: T6 Temper (Solution Heat Treated & Artificially Aged)
- Certifications: MTR Available
Applications
- General Fabrication: Small brackets and supports - easy to cut, drill, and weld for custom parts.
- Machined Components: Mounting blocks and jigs - good machinability allows for precise features.
- Architectural Trim: Decorative elements and frames - corrosion resistant and accepts finishes well.
- Automotive: Custom tabs and braces - high strength-to-weight ratio for performance applications.
Target Users
Machinists, fabricators, and engineers rely on 6061-T6 flat bar for its versatile properties in structural and custom part applications throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish, characteristic of the T6 aging process. 6061 aluminum provides an excellent base for anodizing, which enhances corrosion resistance and allows for coloring. It can also be 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 its Width (B). Use calipers to accurately measure these two dimensions of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 5/16" x 3/4" x 144" length".
Order Checklist
- Product name and required dimensions (5/16" x 3/4")
- 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 - 5/16" X 3/4"
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Weldability, Good Machinability
- Primary Applications
- Brackets, Straps, Mounting Blocks, General Fabrication
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061-T6 Aluminum Flat Bar in widths from 1/2" to 6" and thicknesses from 1/8" to 2". This 5/16" x 3/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

