6061 Aluminum Channel - 4 Inch X 4 Inch X 0.375
6061 Aluminum Channel - 4 Inch X 4 Inch X 0.375
This 4" x 4" x 0.375" channel is made from 6061-T6 aluminum, the most versatile heat-treatable structural alloy. It meets ASTM B308 standards and provides high strength, excellent corrosion resistance, and superior weldability, making it a reliable choice for demanding structural applications. In stock Los Angeles.
- 6061-T6 Aluminum Construction
- ASTM B308 Certified
- 45,000 PSI Tensile Strength
- Excellent Weldability & Machinability
6061-T6 aluminum is a precipitation-hardened alloy containing magnesium and silicon as its major alloying elements. This grade offers a superb combination of high strength-to-weight ratio, good toughness, and excellent corrosion resistance. Conforming to ASTM B308, this channel's T6 temper indicates it has been solution heat-treated and artificially aged to achieve its maximum strength, making it one of the most widely used aluminum alloys for structural purposes.
As a large profile, this 4" x 4" x 0.375" channel provides substantial structural support. Its size is ideal for heavy-duty applications like building frames, industrial supports, main structural members for truck beds and trailers, and robust equipment bases requiring rigidity and durability.
Specifications
- Material: 6061-T6 Aluminum
- Standards: ASTM B308
- Strength/Tensile: 45,000 PSI
- Dimensions: 4" Height x 4" Width x 0.375" Thickness
- Finish: T6 Temper (Mill Finish)
- Certifications: Mill Test Report (MTR) available upon request
Applications
- Construction & Architecture: Building frames, support trusses, and mezzanine structures - high strength-to-weight ratio simplifies installation.
- Industrial Manufacturing: Heavy equipment bases and machinery supports - provides a rigid, corrosion-resistant foundation.
- Transportation: Main frame rails for truck beds, trailers, and utility vehicles - lightweight for better fuel economy without sacrificing strength.
- Marine: Dock frames, boat lifts, and gangways - excellent resistance to saltwater corrosion.
Target Users
Structural engineers, fabricators, and general contractors rely on 6061-T6 Aluminum Channel for its predictable performance and durability in commercial and industrial projects throughout the Los Angeles area.
Finish Options
This product comes standard with a T6 temper mill finish, which may have minor surface scratches or discoloration from the manufacturing process. For enhanced corrosion protection or aesthetic requirements, 6061 aluminum is an excellent candidate for anodizing or powder coating. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
An aluminum channel is measured by its height (A - the overall height of the web), width (B - the length of the flanges), and thickness (C - the thickness of the web/flange).
Example: To order this channel, specify "6061 Aluminum Channel, 4 inch by 4 inch by 0.375 inch".
Order Checklist
- Product name and required dimensions (4" x 4" x 0.375")
- Material specification and quantity
- Confirm grade (6061-T6) meets structural requirements
- Surface finish requirements (Mill Finish or custom)
- Certifications required (Mill Test Report)
- Cutting or other fabrication services needed
Quick Facts
- Product
- 6061 Aluminum Channel - 4 Inch X 4 Inch X 0.375
- Material
- 6061-T6 Aluminum
- Standards
- ASTM B308
- Key Properties
- 45,000 PSI tensile, Excellent Weldability, Excellent Corrosion Resistance
- Primary Applications
- Heavy structural framing, Equipment bases, Marine construction
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 6061 Aluminum Channel in a wide range of heights from 1/2" to 12" and lengths up to 25 feet. This 4" x 4" x 0.375" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing


