Galvanized Square Tube - 1-1/2 Inches X 11 Gauge
A500B Galvanized Square Tube - 1-1/2" x 11 Gauge x 24'
This 1-1/2" square galvanized steel tube features an 11 gauge wall thickness for structural integrity. Conforming to ASTM A500 Grade B, its hot-dip galvanized zinc coating provides excellent corrosion resistance, making it ideal for outdoor frames, trailers, and supports. In stock Los Angeles.
- A500B Galvanized Steel Construction
- ASTM A500 Certified
- 58,000 PSI Tensile Strength
- Superior Corrosion Resistance
Galvanized square tubing is a carbon steel tube manufactured to ASTM A500 Grade B specifications that has been hot-dipped in a protective zinc coating. This process creates a durable, abrasion-resistant barrier against rust and corrosion. It offers a minimum yield strength of 46,000 PSI, making it suitable for load-bearing applications where long-term environmental protection is critical.
As a medium-sized tube, the 1-1/2" profile is a versatile choice for fabricating durable equipment frames, handrails, gate frames, utility trailer cross-members, and support structures where a balance of strength and moderate weight is required. Welding galvanized steel requires proper ventilation due to hazardous fumes.
Specifications
- Material: A500B Galvanized Steel
- Standards: ASTM A500 Grade B
- Strength/Tensile: 58,000 PSI
- Dimensions: 1-1/2" x 1-1/2" x 11 Gauge Wall x 24' Length
- Finish: Hot-Dip Galvanized
- Certifications: MTR available upon request
Applications
- Construction: Support columns and scaffolding - strength and weather resistance for outdoor structures.
- Fencing & Gates: Gate frames and posts - resists rust without needing paint, providing long-term durability.
- Trailers & Automotive: Utility trailer frames and tongues - stands up to road spray and environmental exposure.
- Agriculture: Greenhouse frames and enclosures - withstands high humidity and outdoor conditions.
Target Users
Fabricators, construction contractors, and trailer manufacturers rely on A500B galvanized square tube for its weldability and corrosion resistance in structural applications throughout the Los Angeles area.
Finish Options
This product comes standard with a hot-dip galvanized finish, providing a durable, protective zinc coating for excellent corrosion resistance. This finish can be painted, but requires proper surface preparation and a compatible primer. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Square tube is measured by its outer dimensions (Width x Height), its wall thickness (gauge or decimal), and its overall length.
Example: To order this square tube, specify "Galvanized Square Tube, 1-1/2" x 1-1/2" x 11 Gauge x 24-foot length".
Order Checklist
- Product name and required dimensions (1-1/2" x 11 Ga x 24')
- Material specification and quantity
- Confirm grade (A500 Grade B) meets requirements
- Surface finish requirements (Hot-Dip Galvanized)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Galvanized Square Tube - 1-1/2 Inches X 11 Gauge
- Material
- A500B Galvanized Steel
- Standards
- ASTM A500 Grade B
- Key Properties
- 58,000 PSI tensile, superior corrosion resistance, excellent weldability
- Primary Applications
- Trailer frames, gate posts, structural supports
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock Galvanized Square Tube in sizes from 5/8" to 1-1/2" square with 11 and 16 gauge walls. This 1-1/2" x 11 Gauge size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

