6061 Aluminum Squares - 3-1/4 Inches
6061-T6 Aluminum Square Bar - 3-1/4" x 3-1/4"
This 3-1/4" 6061-T6 Aluminum Square Bar meets ASTM B211 standards, offering a combination of high strength, good workability, and excellent corrosion resistance. Its 45,000 PSI tensile strength makes it a reliable choice for structural applications, jigs, and fixtures. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Corrosion Resistance & Weldability
6061-T6 Aluminum is a precipitation-hardened alloy containing magnesium and silicon, known for its exceptional strength-to-weight ratio. This square bar is produced to a T6 temper (solution heat-treated and artificially aged), providing 45,000 PSI tensile strength while remaining highly weldable and corrosion-resistant. Conforming to ASTM B211, it is one of the most versatile and widely used structural aluminum alloys available.
As a large-format bar, this 3-1/4" square is ideal for heavy-duty structural applications where strength and rigidity are critical. Common uses include industrial machine bases, large jigs and fixtures, heavy support brackets, and forging stock for custom components that demand both durability and lighter weight than steel alternatives.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 3-1/4" Width x 3-1/4" Height x 144" Length
- Finish: T6 Temper Mill Finish
- Certifications: MTR Available
Applications
- Structural Engineering: Support columns, building frames, and heavy brackets - high strength-to-weight ratio reduces overall load.
- Industrial Machinery: Base plates, jigs, and fixtures - excellent machinability and dimensional stability for precise tooling.
- Transportation: Automotive chassis components and marine structural parts - good strength and superior corrosion resistance.
- Aerospace: Non-critical structural fittings and mounting plates - versatile and proven performance.
Target Users
Engineers, fabricators, and machinists rely on 6061-T6 Square Bar for its reliable performance in structural and high-stress applications throughout the Los Angeles area.
Finish Options
This product comes standard with a T6 temper mill finish, which is suitable for most industrial applications. For specific project requirements, 6061 aluminum can be anodized for enhanced corrosion resistance, powder-coated for color, or polished. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Square bar is measured by the length of its side (Width 'A' and Height 'B') and its overall length. For a true square, 'A' and 'B' will be equal. Use calipers for an accurate reading of the sides.
Example: To order this square bar, specify "6061 Aluminum Square, 3-1/4" x 3-1/4" x 144" length".
Order Checklist
- Product name and required dimensions (3-1/4" x 3-1/4" 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 Squares - 3-1/4 Inches
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Weldability, Excellent Corrosion Resistance
- Primary Applications
- Structural frames, machine bases, jigs & fixtures
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Square Bar in sizes from 1/4" to 6" and lengths up to 144". This 3-1/4" x 3-1/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing