6061 Aluminum Flat Bars - 1-1/2 Inch X 4 Inch
6061-T6 Aluminum Flat Bar - 1-1/2 Inch X 4 Inch
This 1-1/2" x 4" 6061-T6 aluminum flat bar is a heat-treatable structural alloy providing a high strength-to-weight ratio. Conforming to ASTM B211, it combines 45,000 PSI tensile strength with good machinability and excellent corrosion resistance, ideal for 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 as its primary alloying elements. The T6 temper indicates it has been solution heat-treated and artificially aged to achieve optimal strength. This versatile grade conforms to ASTM B211 and provides an excellent combination of high strength, good machinability, and superior corrosion resistance, making it one of the most widely used aluminum alloys.
The large 1-1/2" x 4" cross-section of this bar provides significant strength and stability, making it ideal for base plates, heavy structural supports, die components, and large mounting blocks where rigidity and a high strength-to-weight ratio are critical.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 1-1/2" Thickness x 4" Width x 144" Length
- Finish: T6 Temper, Mill Finish
- Certifications: MTR Available
Applications
- Structural: Base plates for machinery - excellent stability and strength-to-weight ratio.
- Fabrication: Heavy equipment mounting - high strength and easy to drill and tap.
- Tool & Die: Die components and jigs - good machinability and dimensional stability.
- Aerospace: Non-critical structural frames and brackets - lightweight yet strong.
Target Users
Fabricators, machinists, and structural engineers rely on 6061-T6 aluminum flat bar for its versatile properties and reliability in structural applications throughout the Los Angeles area.
Finish Options
This product comes standard with a T6 temper and a smooth mill finish. 6061 aluminum accepts applied coatings exceptionally well; finishes such as anodizing for enhanced corrosion resistance or powder coating for color may be available via special order. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Thickness and its Width. Use calipers for an accurate measurement of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 1-1/2" x 4" x 144' length".
Order Checklist
- Product name and required dimensions (1-1/2" x 4" x 144")
- Material specification and quantity
- Confirm grade (6061-T6) meets requirements
- Surface finish requirements (Mill Finish, T6 Temper)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- 6061-T6 Aluminum Flat Bar - 1-1/2 Inch X 4 Inch
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, excellent weldability, good machinability
- Primary Applications
- Base plates, heavy structural, die components
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061-T6 Aluminum Flat Bar in thicknesses from 1/8" to 2", widths from 1/2" to 6", and lengths up to 144". This 1-1/2" x 4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

