Tubes

Tubes are the backbone of countless builds, delivering lines, reliable strength, and performance across construction, fabrication, plumbing, and projects. This category brings together metal tubes in common shapes—round, square, and rectangular—and in materials like carbon steel, stainless steel, aluminum, and copper to match load, corrosion, and weight targets.

Choose round tube for fluid transfer, roll cages, and handrails; square and rectangular tubing for frames, racks, gates, and architectural accents that benefit from flat mounting surfaces. Options include hot-rolled and cold-rolled steel, galvanized coatings for outdoor use, 304/316 stainless for high corrosion resistance, aluminum 6061/6063 for light weight and easy machining, and copper tubing for HVAC and plumbing.

Sizing is straightforward: tube is specified by outside diameter (OD) and wall thickness, with tight tolerances for accurate fit-up. Common standards include ASTM A500 (structural), A513 (mechanical), and A554 (stainless ornamental). You’ll find metric and imperial sizes, plus wall schedules (including Schedule 40/80 on comparable pipe sizes) to hit strength requirements without overbuilding.

Shop with confidence using these quick tips:
- Match alloy and finish to environment: galvanized or stainless for moisture; aluminum for weight-sensitive builds.
- Select wall thickness based on span, load, and joining method; thicker walls ease welding and threading.
- Verify OD/ID for mating parts, bushings, bearings, and compression fittings.
- Plan fabrication: choose material compatible with bending, TIG/MIG welding, brazing, or flaring.

Need to process stock? Many listings offer cut-to-length, deburring, threading, and mitering to reduce shop time. Recommended tools include tube cutters, chop saws with appropriate blades, deburring tools, tube notchers, and mandrel or rotary benders.

From one-off prototypes to production runs, tubing helps you build straighter, stronger assemblies with fewer surprises. Browse steel tubing, stainless steel tube, aluminum tube, copper tubing, and structural tubes to get the right size, finish, and performance for your next project.