Tubing and Pipe
Your Trusted Steel Tubing & Pipe Supplier – USA & Global Sourcing
MB Metals delivers high-quality carbon steel tubing and pipe — including structural, mechanical, DOM, and galvanized products — with fast, just-in-time delivery from our Kelso, WA warehouse.
A Steel Tubing Distributor You Can Count On
MB Metals has built long-standing partnerships with top ERW (Electric Resistance Welded) tubing and pipe mills in the U.S. and abroad. We conduct regular mill visits to ensure all materials meet or exceed ASTM specifications and follow Best Manufacturing Practices (BMP).
As a result, customers rely on MB Metals for:
- Steel tubing supplier USA reliability
- Mechanical tubing and pipe that meets exacting standards
- Custom cut-to-length options and consistent surface finishes
- Mill test reports with every order
Explore Our Tubing & Pipe Products
Precision Steel Products for Manufacturing & Construction
We stock and source a broad selection of high-performance steel tubing and pipe, ideal for manufacturing, fabrication, structural construction, and OEM applications.
Steel Tubing
Versatile, general-purpose steel tubing for fabrication, framing, and welded assemblies. Available in square, round, and rectangular profiles.
Structural Steel Tubing
ASTM A500 Grade A, B, and C HSS tubing designed for load-bearing structures and construction projects requiring strength and stability.
Mechanical Steel Tubing
ASTM A513 ornamental tubing with clean finishes and dimensional precision. Ideal for manufacturing, commercial products, and architectural use.
Steel Pipe
Schedule 10, 40, and 80 steel pipe in ASTM A53 grades. Trusted for structural and mechanical use across construction, infrastructure, and utility sectors.
Galvanized Steel Pipe
In-line and hot-dipped galvanized options for corrosion resistance in outdoor and industrial applications. Ideal for fencing, handrails, and greenhouse construction.
Fire Sprinkler Pipe
UL-listed and FM-approved pipe designed for safety-critical sprinkler systems. Available in red, black, clear, and galvanized finishes with grooved or plain ends.
Standard Size Ranges & Specifications
MB Metals offers flexible sizing, lengths, and finishes to meet your precise application.
Surface Coating Options:
Black with light oil, lacquer, galvanized, and primer-coated finishes (red, blue, and custom)
Length Range:
Standard: 20’, 24’, 40’, 48’ — Custom lengths available
Structural Tubing – ASTM A500 (Grades A, B, C)
- Square & Rectangular Sizes: ½” x ½” up to 12” x 12”
- Wall Thickness: .049” to .500”
- Round Tubing Diameter: ½” to 6”
Mechanical Tubing – ASTM A513
- Available in square, rectangular, and round sections
- High dimensional accuracy and surface finish for OEM and industrial applications
Steel Pipe – ASTM A53 (Schedule 40 & 80)
- Sizes: ½” to 12”
- Wall Thickness: Per Schedule 40 & 80 standards
- Applications: Structural, mechanical, and fire protection
Explore Our Product Gallery
See our inventory, coating types, and cut-to-length service in action.
Speak with a Steel Specialist
Need Help Choosing the Right Tubing or Pipe?
Not sure whether you need DOM tubing, mechanical vs. structural, or Schedule 40 vs. 80 pipe? Learn More