Choosing the right 1.5″ x 1.5″ square tubing can impact the strength, weight, and ease of fabrication for frames, racks, and structural assemblies. This guide highlights five strong options across steel and aluminum, with practical notes on wall thickness, length, and fabrication readiness. Whether you’re building a workbench, a support frame, or a DIY project, these selections cover common North American stock and compatible welding and joining needs.
Summary Of Selected Products
| Product | Material | Wall (in) | Length | Key Use |
|---|---|---|---|---|
| 1/8″ Wall Mild Steel Square Tube | Mild Steel | 0.125 | Custom length | General fabrication and frames |
| A500/A513 Carbon Steel Square Tubing | Carbon Steel | 0.12–0.25 | 36″ / 24″ | Structural frames and fixtures |
| Allstar Square Mild Steel Tubing | Mild Steel | 0.083 | 7.5 ft | Vehicle and equipment frames |
| 80/20 Anodized Aluminum Tube | Aluminum (6063-T6) | 0.125 | 48″ / 89″ | Modular framing and DIY projects |
| Small Parts Unpolished Steel Tube | Steel | 0.083 | 4 ft | Fabrication and replacements |
1/8″ Wall Mild Steel Square Tube, 1.5″ x 1.5″
Material: Mild steel with a 0.125″ wall thickness and 1.5″ x 1.5″ cross-section. This stock is suited for fabricators seeking a straightforward, weldable square tube with flexible length options. The mill surface supports cutting, drilling, welding, and grinding, making it a versatile choice for DIY frames, racks, and light structural supports. When planning connections, consider standard fittings and compatible fasteners for heavy-duty applications. The product is available in adjustable lengths to fit various project spans.
A500/A513 Carbon Steel Square Tubing, 1.5″ x 1.5″ x 0.12″ Wall
Material: Carbon steel square tubing, hot rolled, compatible with ASTM A36 stock. Dimensions: 1.5″ x 1.5″ with a 0.12″ wall and 36″ length. This tube is ideal for rigid structural frames, shop fixtures, brackets, mounts, and shelves. Its robust steel construction supports heavier loads and facilitates straightforward fabrication, including welding and cutting. It’s commonly used in structural and industrial applications, and pairs well with other steel components in multi-member assemblies.
Allstar Square Mild Steel Tubing 1-1/2in x .083in x 7.5ft
Material: Mild steel with a 0.083″ wall thickness, standard 1.5″ square cross-section, and 7.5 ft length. This size is well-suited for automotive, equipment frames, and light structural projects requiring a balance of weight and rigidity. Fabrication readiness is high for cutting, drilling, welded joints, and bracket fabrication. Matching with other steel channels and profiles enables multi-component builds with predictable alignment and strength.
80/20 RT Aluminum Square Tubing, 1-1/2″ x 1-1/2″ x 0.125″
Material: Anodized aluminum square tube (6063-T6) with a 0.125″ wall thickness. Available in long lengths for modular framing systems or DIY projects. Aluminum offers reduced weight compared to steel while maintaining corrosion resistance and strength for light to medium-duty frames, supports, and enclosures. Clean cuts and a smooth mill finish ease assembly, drilling, and mounting in shop environments and display fixtures.
80/20 RT Aluminum Square Tubing, 1.5″ x 1.5″ x 0.125″ (60″ Long)
Material: 6063-T6 aluminum with a clear anodize finish and 0.125″ wall. This 60″ length is ideal for building taller modular frames, machine guards, or structural sections where steadiness and precise tolerances matter. The seamless square tube supports consistent bolt hole alignment and straightforward assembly in 80/20 DIY projects, fabrication setups, and display stands. Use in tandem with compatible aluminum connectors for fast modular builds.
Buying Guide: Key Considerations For 1.5″ X 1.5″ Square Tubing
- Material choice: Steel variants (mild, carbon) offer higher strength and lower cost but heavier weight and potential corrosion. Aluminum variants provide lighter weight, corrosion resistance, and easier fabrication, at a higher material cost.
- Wall thickness: Thicker walls increase torsional rigidity and load-bearing capacity but add weight. Typical options around 0.083″ to 0.25″ balance strength with machinability.
- Length and tolerances: Standard lengths simplify procurement and cutting. Check whether stock length fits your project, or if you’ll need end-to-end joining or telescoping configurations.
- Fabrication readiness: Smooth mill finishes facilitate cutting, drilling, welding, and deburring. Consider coatings (e.g., anodizing) for aluminum to improve wear and corrosion resistance.
- Compatibility: Ensure compatibility with fasteners, brackets, and other profiles in your project (especially if combining steel and aluminum components).
- Applications: Structural frames, racks, supports, machine guards, and DIY chassis vary in required strength and weight; choose accordingly.
- Cost and availability: Stock availability in the United States and lead times can influence project planning. Compare similar cross-sections across brands for value.
Add a Comment