Price range: $37.34 through $224.04
A500 hot rolled steel rectangular tubing is a structural-grade carbon steel product manufactured to ASTM A500 specifications for maximum strength, durability, and consistent performance. The 3″ × 5″ × 3/8″ (0.375″) HR steel rectangular tube features an extra heavy-wall hollow structural section (HSS) designed for extreme load-bearing and high-stress structural applications. Its robust rectangular profile provides exceptional rigidity, stability, and resistance to bending or deformation under heavy loads. This material has a raw hot rolled (HR) mill finish and may exhibit a dark surface with mill scale typical of structural carbon steel.
Applications:
A500 steel rectangular tubing is commonly used in heavy-duty structural and fabrication applications, including:
• Heavy structural frames and industrial support systems
• Equipment bases and high-load machinery structures
• Trailer frames, truck beds, and transport equipment
• Construction and infrastructure reinforcement projects
• Safety barriers, bracing systems, and support structures
• Custom fabrication requiring maximum strength and rigidity
Advantages:
• Maximum strength: 3/8″ (0.375″) wall thickness provides extreme load capacity
• Heavy-duty profile: 3″ × 5″ section offers excellent rigidity and stability
• Weldable: Suitable for MIG, TIG, and stick welding
• Machinable: Can be cut, drilled, and fabricated with proper equipment
• Consistent dimensions: Uniform shape for precise structural applications
• Extreme durability: Designed for the most demanding industrial environments
Summary:
The 3″ × 5″ × 3/8″ (0.375″) A500 HR steel rectangular tube is an ultra heavy-duty structural material built for maximum strength and performance. Its thick wall construction, rigid profile, and reliable weldability make it ideal for the most demanding fabrication, construction, and industrial applications.
* Prices are subject to change without notice due to fluctuations in the metals market. | All “Value Length” and “Value Pack” item measurements are subject to standard mill tolerances. | Products may be manufactured several thousandths of an inch over or under the stated dimensions and still be within acceptable mill tolerances. All bar, tube, structural, pipe, sheet, plate, and similar products sold on our website are custom cut to the lengths and sizes selected by the customer at the time of purchase. These are not stocked as pre-cut items. Because each order is cut specifically to customer specifications, all cut materials are considered custom products and are not eligible for cancellation, return, or exchange once production has begun. Our standard cutting tolerances are:
