Find the right 1 1/2 round steel tubing for your build. This guide highlights five solid options, each suited to different needs—from automotive frames to welded fabrications. Best for DIY enthusiasts, fabricators, and hobbyists seeking reliable steel or stainless options with consistent dimensions. A quick summary table follows to compare core specs at a glance.
| Product | Material | Length | Notable Feature |
|---|---|---|---|
| Allstar Performance Round DOM Steel Tubing 1-1/2in x .095in x 4ft | DOM Steel | 4 ft | High-strength DOM construction |
| JEGS 35034 Mild Steel Tubing 1-1/2 in x 0.120 in | Mild Steel | 4 ft | Standard wall thickness |
| Small Parts Unpolished 1.5″ OD Steel Round Tube 0.120″ Wall 4 ft | Steel | 4 ft | Mill finish, sturdy option |
| Hicarer 1-1/2″ OD 304 Stainless Steel Tubing 0.06″ Wall 24″ Length | 304 Stainless | 2 ft | Stainless, weldable, corrosion resistant |
| MOKOVI 1-1/2″ OD 304 Stainless Steel Tube 16″ Long | 304 Stainless | 16 in | Smooth finish, decent for shorter runs |
Allstar Performance Round DOM Steel Tubing
Material: DOM steel with 1-1/2 inch outer diameter and 0.095 inch wall. Length: 4 ft. The DOM construction provides consistent wall thickness and good machinability for welding and forming. Best for: automotive frames, roll cages, or high-stress fabrications where straight, strong tubing is needed.
Why selected: This option emphasizes strength and predictable behavior during welding and bending, making it a reliable core tube for structural builds. Choosing this is ideal if you want a proven, consistent steel tubing profile.
Caution: The listed length is 4 ft, so long sections may require cutting or multiples; verify required run lengths before ordering. Tight tolerances in wall thickness help with strength but may affect fitment if your design requires exact extrusions.
JEGS 35034 Mild Steel Tubing
Material: Mild steel with 1-1/2 inch outer diameter and 0.120 inch wall thickness. Length: 4 ft. This tube provides a common standard for general fabrications and is widely available for projects requiring versatile steel stock.
Who it’s best for: Builders seeking a cost-effective, easily weldable option with ample availability. This is a solid all-around choice when strength is needed without specialized coatings.
Caution: Mild steel can require protective coatings to resist corrosion in humid or outdoor environments; consider galvanizing or painting for longevity.
Small Parts Unpolished 1.5″ Steel Round Tube
Material: Steel with 1.5 inch outer diameter and 0.120 inch wall thickness. Length: 4 ft. Finish: Mill/unpolished. This tube offers robust dimensions with a straightforward profile for fabrication and machining tasks.
Best for: Projects needing a standard steel stock with predictable welding and drilling characteristics. The unpolished finish can be suitable where post-processing is planned.
Limitation: Mill finish may require additional surface prep before cosmetic painting or finishing; plan for cleanup if aesthetics are a priority.
Hicarer 1-1/2″ OD Stainless Tubing
Material: 304 stainless steel with 1-1/2 inch outer diameter and 0.06 inch wall thickness. Length: 24 inches. Features a smooth surface and high corrosion resistance, making it suitable for outdoor or moisture-prone environments.
Best for: Projects requiring stainless steel to resist rust and corrosion, such as outdoor frames, railing components, or water-related fabrications.
Limitation: The 24-inch length may require joining or trimming for longer runs; stainless tubing can be more expensive than carbon steel options.
MOKOVI 1-1/2″ Stainless Tubing
Material: 304 stainless steel with 1-1/2 inch outer diameter and 16 inches in length. This is a compact stainless option for shorter run assemblies or decorative/fashioned structural pieces.
Best for: Shorter, corrosion-resistant installations or bolt-together assemblies where 16 inches of tubing suffices. Useful when a precise, bright stainless length is needed without extra fabrication.
Limitation: The shorter length means more joints for longer projects; consider longer stock if continuous runs are essential to the design.
Buying Guide: Key Considerations For 1 1/2 Inch Round Tubing
- Material selection: Steel vs stainless. Steel (DOM or mild) offers strength and lower cost; stainless provides corrosion resistance and longevity in moisture-prone environments.
- Wall thickness: If your project experiences bending or high load, thicker walls (e.g., 0.120 in) improve strength. Thinner walls save weight and cost but reduce stiffness.
- Length and compatibility: Confirm available stock lengths (4 ft, 2 ft, 16 in) align with your cut plan. Plan for joins where continuous lengths aren’t available.
- Finish and processing: Mill/unpolished finishes may require prep before painting. Stainless tubes generally weld well and resist corrosion but may require specific welding consumables.
- Fabrication requirements: Consider welding, threading, or forming needs. DOM tubes are known for consistent wall thickness and good weldability, while mild steel is widely compatible with standard fabrication tools.
- Environment and durability: Outdoor projects benefit from stainless due to corrosion resistance; indoor or hobbyist projects can often use carbon steel with protective coatings to save cost.
Frequently Asked Questions
- What is DOM steel tubing and when should I choose it?
DOM stands for drawn-over-mandrel, delivering consistent wall thickness and smooth interior surfaces—great for high-stress structural uses like frames and cages. - Is stainless steel better than mild steel for outdoor projects?
Yes, stainless steel resists corrosion, making it a better long-term choice in moisture-prone environments. It can be more expensive and a bit harder to machine. - How do I know which wall thickness to pick?
Thicker walls improve strength and rigidity but add weight and cost. For high-stress loads, 0.120 inch is a common robust option. - Can I weld 1-1/2 inch tubing easily?
Yes, especially with DOM or mild steel; ensure proper welding technique and compatible filler metal for the chosen material. - Should I buy the longest stock available?
Longer stock reduces joints but increases waste if cuts aren’t needed. Match stock length to your cut plan and project size. - What if I need a specific finish?
Mill finishes are common on unpolished tubes; for cosmetics, plan painting or polishing after fabrication, especially on stainless stock.