Hot Rolled Steel Rectangular Tube - 8 Inch X 4 Inch X 0.25
A500B Steel Rectangular Tube - 8" x 4" x 0.250"
This 8" x 4" x 0.250" wall Hot Rolled Steel Rectangular Tube is a structural grade product manufactured to ASTM A500 Grade B. It offers 58,000 PSI tensile strength and excellent weldability, making it ideal for heavy-duty structural frames, supports, and trailer construction. In stock Los Angeles.
- A500B Carbon Steel Construction
- ASTM A500 Grade B Certified
- 58,000 PSI Tensile Strength
- Excellent Weldability & Formability
Hot rolled rectangular steel tubing is a structural grade product manufactured to the ASTM A500 Grade B specification. The hot rolling process delivers excellent forming and welding characteristics with a scaled surface finish. Its combination of strength, cost-effectiveness, and load-bearing capacity makes it a foundational material for construction, trailer manufacturing, and industrial fabrication where robust performance is essential.
As a large-section tube, this 8" x 4" profile provides superior resistance to bending and torsional stress when loaded along its taller axis. It is frequently specified for heavy-duty applications including structural columns, main trailer frames, equipment bases, and industrial supports where maximum load-bearing capacity is required.
Specifications
- Material: A500 Grade B Hot Rolled Steel
- Standards: ASTM A500
- Strength/Tensile: 58,000 PSI (minimum)
- Dimensions: 8" Width x 4" Height x 0.250" Wall
- Finish: Hot Rolled (Mill Scale)
- Certifications: Mill Test Report (MTR) Available
Applications
- Construction: Building frames, support columns, and trusses - High strength-to-weight ratio for primary load-bearing structures.
- Trailers & Heavy Equipment: Main trailer frames, cross-members, and machinery bases - Resists bending and torsional stress under heavy loads.
- Industrial Racking: Heavy-duty warehouse racking systems and mezzanine supports - Excellent compression strength and durability.
- Agriculture: Frames for large implements, barn structures, and supports - Robust and cost-effective for demanding environments.
Target Users
Structural fabricators, trailer manufacturers, and industrial engineers rely on A500B rectangular tube for its strength and reliability in demanding applications throughout the Los Angeles area.
Finish Options
This product comes standard with a hot rolled finish, characterized by a dark, rough mill scale on the surface. This scale must be removed by grinding, sandblasting, or pickling before painting or powder coating. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Rectangular tube is measured by its outer Width (A), outer Height (B), and uniform Wall Thickness (C). The width is typically the longer of the two sides.
Example: To order this tube, specify "8 Inch by 4 Inch by 0.250 Inch Wall Rectangular Tube".
Order Checklist
- Product name and required dimensions (8" x 4" x 0.250")
- Material specification and quantity
- Confirm grade (A500 Grade B) meets requirements
- Surface finish requirements (Hot Rolled)
- Certifications required (Mill Test Report)
- Cutting, handling, or delivery requirements
Quick Facts
- Product
- Hot Rolled Steel Rectangular Tube - 8 Inch X 4 Inch X 0.25
- Material
- A500B Hot Rolled Steel
- Standards
- ASTM A500
- Key Properties
- 58,000 PSI tensile, excellent weldability, high strength-to-weight
- Primary Applications
- Structural frames, trailer manufacturing, heavy supports
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock hot rolled rectangular tube in a wide range of sizes with wall thicknesses up to 0.500". This 8" x 4" x 0.250" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

