Square Bar: 3/8" Width x 3/8" Thickness - 6063-T5 Aluminum

Square Bar: 3/8" Width x 3/8" Thickness - 6063-T5 Aluminum Product Information

The Aluminum Square Bar is a versatile, solid-profile extrusion used in structural, architectural, and fabrication applications. Known for its clean lines and excellent strength-to-weight ratio, this bar is easy to machine, weld, and cut—making it a reliable choice for both functional frameworks and aesthetic accents. Built from corrosion-resistant aluminum, it performs reliably in both indoor and outdoor environments.

Highlights

• Straightforward Utility – Ideal for bracing, supports, spacers, or general-purpose structural use
• Durable & Corrosion-Resistant – Made from high-quality aluminum to withstand demanding conditions
• Easy to Fabricate – Can be cut, drilled, welded, or machined to suit a wide range of projects
• Clean Geometric Form – Square profile integrates smoothly into architectural or industrial builds
• Used Across Industries – Common in construction, manufacturing, custom fabrication, and more

Need custom sizes or extrusions? Check out our customization services.

• Wall Thickness:3/8"
• Width:3/8"
• Specification Met:ASTM B221-20
• Country of Origin:United States of America
• Yield Strength:35k PSI-1
• RoHS:RoHS 3 (2015/863/EU) Compliant
• REACH:REACH (EC 1907/2006) (06/25/2020, 209 SVHC) Compliant
• DFARS:Specialty Metals COTS-Exempt
• Materials:See Specification
Aluminium 95.1%
Chromium 0.4-0.8%
Copper 0.05-0.5%
Iron 0-0.7%
Magnesium 0.8-1.2%
Manganese 0-0.15%
Nickel 0-0.5%
Silicon 0.4-0.8%
Titanium 0-0.15%
Zinc 0-0.25%
Zirconium 0-0.25%
Other 0.15%