ASTM A513

Bull Moose capably meets the ASTM A513 specs with square, rectangular and round mechanical steel tubing suitable for a broad range of heavy-duty product applications. Our A513-compliant mechanical tubing is available in hot-rolled, hot-rolled pickled & oiled, cold-rolled matte, and cold-rolled plating-quality finishes, as well as in coated steels, including Galvanized and Galvalume®. In addition, high-strength, low-alloy (HSLA) grades are available.

Bull Moose Tube Manufacturing A513
Our steel tubes offer some of the industry’s best strength-to-weight ratios—which enables you to build cost-effective products that can endure tough applications. Other advantages of Bull Moose steel tube:
  • Leading availability and fast delivery through eight North American plants
  • Special rolling options
  • Broad range of finishing services
  • Special packaging choices
  • Potential for product-development collaboration

Our A513 mechanical tubing is at work in an extraordinary range of markets and applications, including:

  • Solar torque tube
  • Seat framing
  • Furniture
  • Exercise equipment
  • Lawn & garden equipment
  • Display cases
  • Fabric structures
  • Greenhouse heater tubes
  • Utility trailers

Relevant Documentation

To Build Stronger Products. Start with Stronger Steel: Bull Moose Mechanical Tube.

Strength and endurance are what you get with Bull Moose mechanical steel tubes. Our steel tubes offer the industry’s best strength-to-weight ratios—which enables you to build cost-effective products that can endure the toughest applications.

Whether you’re working in commercial, construction, or consumer markets, our products help your products to be stronger.

Bull Moose Advantages: 

  • Tube that meets A513 or custom grades
  • Weathering grade
  • Special shapes available
  • Widest variety of custom sizes and lengths—including metric sizes
  • Pickle & Oil and Dry Pickle & Oil options

Other Benefits/Services:

  • Leading availability and fastest delivery through seven North American plants
  • Special packaging
  • Special rolling options
  • Broad range of finishing services
  • Extensive engineering and product development capabilities

Leading the Herd

Founded in 1962, Bull Moose Tube has been delivering products of enduring quality for more than half a century. 

Our mechanical stock includes squares ranging from .5 to 3 inches, rectangles from 1×1.5 to 2×3 — in a broad assortment of gauges. For projects requiring heavy-duty structural pipe, Bull Moose provides diameters of .5 to 4 inches, in all standard schedules.

With eight North American manufacturing and warehouse facilities, Bull Moose has the products you need within easy reach.

You need strength and reliability. You need availability. You need Bull Moose Tube.

Locations around North America Delivering Best-in-Class Products

Common Applications Include

Health/Fitness Equipment

Weightlifting Gear
Exercise and Fitness Machines
Gym Racks

Agriculture & Farm Machiner
Hay combines Irrigation systems Planters
Lawn & Garden Implements
Lawn Tractor Components Mower Handles Chainsaw Handles
Industrial Environments

Racking and Storage structures
Handrails and Guardrails
HVAC Components