6061 Aluminum Flat Bars - 3/8 Inch X 1-3/4 Inch
6061 Aluminum Flat Bars - 3/8 Inch X 1-3/4 Inch
This 1-3/4" x 3/8" 6061-T6 aluminum flat bar meets ASTM B211 specifications, delivering a superior combination of strength, corrosion resistance, and machinability. Its 45,000 PSI tensile strength makes it ideal for structural applications, including framing, brackets, and machined parts. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B211 Certified
- 45,000 PSI Tensile Strength
- Excellent Workability & Corrosion Resistance
6061-T6 aluminum is a precipitation-hardened alloy containing magnesium and silicon, solution heat-treated and artificially aged for optimal strength. This T6 temper provides an excellent combination of high strength, good corrosion resistance, and weldability, making it one of the most versatile aluminum grades. This flat bar conforms to ASTM B211, ensuring consistent mechanical properties for reliable performance in fabrication and machining.
As a medium-width bar, this 1-3/4" x 3/8" size is perfectly suited for structural bracing, machine ways, base plates, and support brackets. Its rectangular profile provides a stable, flat surface for drilling, tapping, and mounting components in various assemblies.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B211
- Strength/Tensile: 45,000 PSI
- Dimensions: 1-3/4" Width x 3/8" Thickness x 144" Length
- Finish: T6 Temper, Mill Finish
- Certifications: Mill Test Report (MTR) Available
Applications
- Structural Framing: Support members and braces - high strength-to-weight ratio for rigid assemblies.
- Machined Components: Custom brackets and mounting plates - good machinability for precision parts.
- Automotive: Chassis components and trailer frames - lightweight yet durable for vehicle construction.
- General Fabrication: Base plates and gussets - easy to weld and form for repairs or new builds.
Target Users
Fabricators, machinists, and structural engineers rely on 6061-T6 flat bar for its excellent all-around properties in projects throughout the Los Angeles area.
Finish Options
This product comes standard with a T6 temper and a smooth mill finish. 6061 aluminum provides an excellent surface for anodizing, powder coating, or polishing for enhanced appearance or corrosion resistance. 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 measurement of the rectangular cross-section.
Example: To order this flat bar, specify "6061 Aluminum Flat Bar, 1-3/4" x 3/8" x 144" length".
Order Checklist
- Product name and required dimensions (1-3/4" x 3/8" 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 - 3/8 Inch X 1-3/4 Inch
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B211
- Key Properties
- 45,000 PSI tensile, Excellent Machinability, Excellent Corrosion Resistance
- Primary Applications
- Structural Bracing, Machined Parts, Base Plates
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Flat Bar in widths from 1/2" to 6", thicknesses from 1/8" to 2", and standard 144" lengths. This 1-3/4" x 3/8" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

