6061 Aluminum Flat Bars - 1/2 Inch X 3-1/2 Inch
6061-T6 Aluminum Flat Bar - 3-1/2" x 1/2"
This 3-1/2" x 1/2" 6061-T6 Aluminum Flat Bar provides a versatile combination of high strength, weldability, and corrosion resistance. Conforming to ASTM B211, it is ideal for structural framing, base plates, and machined components where light weight and durability are required. 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, offering a versatile blend of mechanical properties. The T6 temper indicates it has been solution heat-treated and artificially aged to achieve optimal strength. Compliant with ASTM B211, it provides excellent weldability and corrosion resistance, making it one of the most widely used aluminum alloys for structural fabrication.
As a large-format flat bar, this 3-1/2" width is suited for applications requiring significant surface area and structural integrity, such as equipment base plates, heavy-duty mounting brackets, structural support members, and components for dies and fixtures where stability is critical.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 3-1/2" Width x 1/2" Thickness x 144" Length
- Finish: T6 Temper Mill Finish
- Certifications: MTR Available
Applications
- Structural Fabrication: Base plates - provides a stable, corrosion-resistant foundation for machinery.
- Machining: Jigs and fixtures - its width and flatness are ideal for creating stable tooling.
- Transportation: Trailer frame components - high strength-to-weight ratio reduces overall vehicle weight.
- Marine: Structural boat components - excellent corrosion resistance in marine environments.
Target Users
Fabricators, machinists, and engineers rely on 6061-T6 flat bar for its consistent properties and workability in structural and machined applications throughout the Los Angeles area.
Finish Options
This product comes standard with a T6 temper mill finish, which may have minor surface imperfections. For enhanced corrosion resistance and aesthetics, 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 Width (A) and Thickness (B). Use calipers for an accurate reading of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 3-1/2" wide by 1/2" thick".
Order Checklist
- Product name and required dimensions (3-1/2" x 1/2" x 144")
- Material specification and quantity
- Confirm grade (6061-T6) meets requirements
- Surface finish requirements (T6 Mill Finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- 6061 Aluminum Flat Bars - 1/2 Inch X 3-1/2 Inch
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Weldability, Good Machinability
- Primary Applications
- Base plates, structural framing, machined parts
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Flat Bar in widths from 1/2" to 6" and lengths up to 144". This 3-1/2" x 1/2" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

