6061 Aluminum Flat Bars - 3/4 Inch X 3-1/2 Inch
6061 Aluminum Flat Bars - 3/4 Inch X 3-1/2 Inch
This 3/4" x 3-1/2" 6061-T6 Aluminum Flat Bar provides a high strength-to-weight ratio ideal for structural applications. Conforming to ASTM B211, it combines 45,000 PSI tensile strength with excellent weldability and corrosion resistance, making it perfect for base plates and structural framing. 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 for maximum strength. Conforming to ASTM B211, it provides an excellent combination of strength, corrosion resistance, and machinability, making it one of the most widely used aluminum alloys for fabrication and structural projects.
With a substantial 3-1/2" width and 3/4" thickness, this large flat bar is an excellent choice for applications requiring rigidity and load-bearing capacity. Common uses include manufacturing heavy-duty base plates for machinery, structural framing members, support brackets, and components for jigs and dies.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 3/4" Thickness x 3-1/2" Width x 144" Length
- Finish: T6 Temper Mill Finish
- Certifications: MTR Available
Applications
- Industrial Machinery: Base plates - provides a stable, lightweight, and machinable foundation for heavy equipment.
- Structural Engineering: Support gussets and braces - high strength-to-weight ratio for reinforcing frames and structures.
- Tool & Die: Jig and fixture components - dimensionally stable and easily machined to precise specifications.
- Transportation: Trailer and vehicle frame components - strong, weldable, and corrosion-resistant for durable assemblies.
Target Users
Fabricators, machine shops, and structural engineers rely on 6061-T6 flat bar for its strength and versatility in projects throughout the Los Angeles area.
Finish Options
This product comes standard with a T6 temper mill finish, which may have minor surface scratches. For specific project requirements, 6061 aluminum can be anodized for color and enhanced corrosion resistance, or powder coated for a durable finish. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Thickness (A) and Width (B). Use calipers for an accurate measurement of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 3/4 inch thick by 3-1/2 inch wide".
Order Checklist
- Product name and required dimensions (3/4" x 3-1/2" 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 - 3/4 Inch X 3-1/2 Inch
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Weldability, Excellent Corrosion Resistance
- Primary Applications
- Base Plates, Structural Framing, Machine Components
- 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 3/4" x 3-1/2" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing