Galvanized Square Tube - 3 Inches X 11 Gauge
A500B Galvanized Square Tube - 3" x 3" x 11 Gauge x 24'
This 3" x 3" x 11 gauge structural tube is manufactured from ASTM A500 Grade B steel and features a hot-dip galvanized coating for superior corrosion resistance. Its high strength-to-weight ratio and robust 58,000 PSI tensile strength make it ideal for durable outdoor frames. In stock Los Angeles.
- A500B Steel Construction
- ASTM A500 Certified
- 58,000 PSI Tensile Strength
- Superior Corrosion Resistance
Galvanized square tube is a carbon steel product manufactured to ASTM A500 Grade B specifications and coated in a protective layer of zinc. This hot-dip galvanizing process creates a durable, abrasion-resistant barrier against rust, significantly extending its service life in outdoor and high-moisture environments. It combines the structural integrity of steel with long-term weather protection, reducing maintenance requirements for exposed assemblies.
As a medium-sized tube, the 3" square profile provides excellent compression strength for equipment frames, support columns, trailer tongues, and heavy-duty gate frames. Its uniform shape simplifies fabrication, while its strength is suitable for load-bearing applications where environmental durability is a key design requirement.
Specifications
- Material: A500B Galvanized Steel
- Standards: ASTM A500
- Strength/Tensile: 58,000 PSI
- Dimensions: 3" x 3" x 11 Gauge x 24'
- Finish: Hot-Dip Galvanized
- Certifications: MTR Available
Applications
- Construction: Support columns and structural framing - high strength and weather resistance.
- Trailers: Utility trailer frames and cross-members - stands up to road conditions and moisture.
- Fencing & Gates: Heavy-duty gate frames and fence posts - provides rigidity and rust prevention.
- Outdoor Structures: Frames for carports, pergolas, and sign posts - durable for long-term exposure.
Target Users
Fabricators, construction contractors, trailer manufacturers, and welders rely on A500B Galvanized Square Tube for strong, corrosion-resistant structures throughout the Los Angeles area.
Finish Options
This product comes standard with a hot-dip galvanized finish for maximum corrosion protection. The zinc coating has a typical spangled appearance. If painting is desired, the surface must be properly cleaned and treated with a wash primer to ensure adhesion. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Square tube is measured by its outer dimensions (Width x Height) and its wall thickness. For this product, the width and height are both 3", and the wall thickness is 11 gauge (approx. 0.120").
Example: To order this square tube, specify "Galvanized Square Tube, 3" x 3" x 11 Gauge x 24' length".
Order Checklist
- Product name and required dimensions (3" x 3" x 11 Gauge)
- Material specification and quantity (in 24' lengths)
- Confirm grade (A500B) meets requirements
- Surface finish requirements (Galvanized)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- A500B Galvanized Square Tube - 3" x 3" x 11 Gauge x 24'
- Material
- A500B Galvanized Steel
- Standards
- ASTM A500
- Key Properties
- 58,000 PSI tensile, excellent weldability, superior corrosion resistance
- Primary Applications
- Structural frames, trailer manufacturing, gates, outdoor supports
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock Galvanized Square Tube in sizes from 5/8" to 3" with various wall thicknesses. This 3" x 3" x 11 Gauge size is available in 24-foot lengths for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing