Steel Tubing for Agricultural Equipment: Built for the Field

Planting and harvesting don’t wait. The equipment farmers depend on must be ready, and manufacturers building agricultural equipment need tubing that fits their production process.

Did you know that U.S. farmland covers approximately 39% of the country’s land area? 880 million acres in the 2022 Census. That’s a lot of ground to cover, and equipment helps keep those acres productive.

At Alliance Tubular Products (ATP), we manufacture square and rectangular steel tubing for agricultural equipment manufacturers. From equipment frames to fabricated support assemblies, we help buyers source direct-from-mill tubing that meets their specifications and supports their production schedules.

Square and rectangular tubing provides a practical foundation for welded agricultural equipment assemblies. Its flat surfaces accommodate connections, brackets, and mounting points, while different profiles give engineers design options.

Agricultural applications include:

• Tractors: frame components, supports, and equipment assemblies.
• Combines and harvesters: structural frameworks and fabricated supports.
• Sprayers: frames and support assemblies.
• Implements: welded frames and crossmembers.
• Farm trailers: framework and supporting components.

The right tubing depends on the part’s loads, dimensions, fabrication requirements, and operating conditions. ATP supplies structural tubing for agricultural manufacturing, with options to match different component requirements.

Building agricultural equipment? Explore ATP’s agricultural tubing capabilities.

Direct forming produces square and rectangular tubing directly from slit steel coil. The steel moves through a series of forming rolls that gradually shape the profile before welding the seam.

Unlike processes that first make a round “mother tube” and then reshape it, direct forming takes the steel directly to its finished square or rectangular shape.

Straightness, sharper corner geometry, and dimensional consistency affect how tubing fits into fixtures and assemblies. ATP’s direct-form process supports sharper corners, consistent wall profiles, and reduced bow and twist.

For manufacturers cutting, drilling, and welding tube components, those characteristics matter. A consistent profile helps make fit-up more predictable and reduces the need to work around material variation.

ATP manufactures a broad range of square and rectangular profiles, including specialty sections and metric shapes.

Our fully automated direct-form line provides flexibility across sizes and lengths. Confirm your required size, wall thickness, specification, and order quantity with our team today.

ATP offers ASTM A500 structural tubing.

The appropriate specification depends on your drawing and component requirements.

Start with the engineering specification, then bring us the details. We can review available options for your application.

Have a size in mind? View ATP’s tubing products and send us your requirements.

Our direct-form manufacturing process focuses on the characteristics that matter during fabrication: profile consistency, corner quality, and straightness. These give your production team a more predictable starting point.

ATP offers precut tubing and custom bundle options. Discuss your component lengths and handling needs with our team to determine whether these services can reduce cutting work or simplify material movement at your facility.

When you partner with Alliance, you're getting more than just steel tubing. You're getting a full-spectrum steel solution, all managed under one roof:

1. Alliance Steel sources and processes flat-rolled coil using state-of-the-art slitting and blanking equipment, delivering high-quality raw materials that meet precise specifications for modular-grade performance.
2. Alliance Tubular Products transforms slit coil into structural steel tubing using a direct-form ERW process that produces square and rectangular tubing with tight tolerances, superior straightness, and excellent load-bearing capacity.
3. Alliance Fabrication and Manufacturing completes the offering with value-added fabrication services, including robotic welding, laser cutting, precision bending, kitting, and assembly—ideal for transforming raw materials into finished, modular frame components.

Together, we offer:

1. A single point of contact for coil, tube, and fabrication
2. Reduced freight costs
3. Faster response times and production turnaround
4. Consistent quality from start to finish

You need a partner who understands the pace and pressure of your project. At Alliance, we're that partner.