Description
Product Overview
The Allstar Square Mild Steel Tubing is engineered for professionals who demand precision, durability, and versatility in a single piece of hardware. Measuring a true 3/4 inch (19.05 mm) square outside diameter with a nominal wall thickness of .049 inch (1.24 mm), this tube delivers a solid cross‑section that resists bending while remaining lightweight enough for easy handling. Its 7.5 foot (2.29 m) length provides ample reach for a wide range of projects, from structural frames to custom rigging components, without the need for frequent splicing or joining.
Constructed from high‑grade mild steel, the tubing benefits from the inherent strength and ductility of the alloy, allowing it to absorb impact loads and tolerate modest deformation before permanent damage occurs. The surface is finished in a bright silver chrome coating that not only enhances visual appeal but also adds a protective barrier against corrosion, rust, and environmental wear. This finish is especially valuable in workshop environments where exposure to moisture, oils, and chemicals is common.
Allstar Performance, the manufacturer, has a reputation for delivering consistent quality across its product lines. Each tube is produced under strict quality‑control protocols, including dimensional verification, tensile testing, and visual inspection for surface defects. The result is a product that meets or exceeds industry standards for steel tubing used in fabrication, automotive, aerospace, and hobbyist applications.
The tube’s weight of approximately 3.39 pounds (1.54 kg) makes it easy to transport in a standard toolbox or on a pallet, while still providing the mass needed for stability in load‑bearing configurations. The product is identified by the model number ALL22163‑7 and carries the UPC 848238095227 for straightforward inventory management. Whether you are a fabricator, a mechanic, a DIY enthusiast, or a small‑scale manufacturer, the Allstar Square Mild Steel Tubing offers a reliable foundation for building robust structures and mechanisms.
The tube’s 0.75 inch square cross‑section aligns with standard square‑tube brackets and connectors, enabling seamless integration with existing hardware such as angle brackets, gusset plates, and modular frame kits. Its consistent wall thickness of .049 inch (1.24 mm) provides predictable load‑bearing capacity, allowing engineers to calculate bending moments and shear forces with confidence. The tube’s surface finish also facilitates the application of adhesives and sealants, making it suitable for jointing methods beyond welding, such as epoxy bonding for non‑metallic assemblies.
Usage
The square mild steel tubing is suited for a broad spectrum of applications where strength, dimensional accuracy, and a clean aesthetic are required. In industrial settings, fabricators frequently employ this tube as a primary component for building frames, brackets, and support structures for machinery, conveyors, and workstations. Its square profile simplifies alignment and fastening, allowing engineers to use standard square‑hole drill bits and bolts without the need for custom machining.
For automotive enthusiasts, the tubing serves as an excellent material for roll cages, chassis reinforcement, and custom exhaust mounts. The 3/4 inch dimension matches many standard automotive bolt patterns, and the .049 inch wall thickness provides a balance between rigidity and weight, contributing to improved vehicle handling while keeping added mass to a minimum. The chrome‑finished surface also resists the harsh chemicals found in brake fluid and under‑hood environments.
In the realm of DIY and hobby projects, makers appreciate the tube’s ease of cutting, drilling, and welding. Whether constructing a portable workbench, a modular shelving system, or a decorative lighting frame, the tube can be shaped with common hand tools or a metal band saw, then securely joined using MIG or TIG welding techniques. The silver finish adds a professional look to visible structures, reducing the need for additional painting or coating.
Architects and designers often incorporate the tubing into interior installations such as exposed structural elements, lighting trusses, and artistic sculptures. Its precise dimensions ensure that modular designs can be assembled and disassembled with minimal effort, supporting temporary installations for events or exhibitions. The tube’s resistance to corrosion makes it suitable for outdoor use in garden trellises, pergolas, and lightweight fencing, provided that the chrome coating is maintained.
In marine applications, the tube’s corrosion‑resistant finish makes it suitable for constructing lightweight boat frames, deck railings, and custom mounting brackets for outboard engines. The square shape simplifies the attachment of square‑hole fittings, reducing the need for custom adapters. For agricultural equipment, the tubing can be used to reinforce harvest bins, support greenhouse structures, or create durable tool racks that withstand exposure to soil and moisture. Its ability to be welded with standard MIG equipment means that field repairs are straightforward, allowing technicians to maintain equipment without extensive downtime.
In educational settings, the tube serves as an excellent teaching aid for engineering students learning about structural analysis, material properties, and fabrication techniques. Instructors can use the readily available 7.5‑foot length to demonstrate concepts such as moment of inertia, buckling, and load distribution in a hands‑on environment. The tube’s manageable weight allows students to handle and assemble test frames safely, fostering experiential learning without the hazards associated with heavier steel sections.
Why Choose Us
Choosing Allstar Performance means selecting a partner that prioritizes quality, consistency, and customer support throughout the product lifecycle. Each square mild steel tube is manufactured in a controlled environment where temperature, composition, and rolling processes are closely monitored to achieve exact dimensions and uniform wall thickness. This meticulous approach reduces variability, ensuring that every piece fits precisely into engineering drawings and assembly jigs without costly rework.
Allstar’s commitment to material integrity is reinforced by third‑party testing labs that verify tensile strength, yield point, and elongation characteristics against ASTM standards for mild steel. The results are documented and available upon request, giving engineers the confidence to rely on the tubing for safety‑critical applications such as load‑bearing frames and protective enclosures.
Beyond the physical product, Allstar provides comprehensive technical assistance. Our engineering support team can advise on optimal cutting speeds, welding parameters, and fastening methods tailored to your specific project requirements. If you encounter any issues during installation, our responsive after‑sales service offers troubleshooting guidance, replacement parts, and, when necessary, expedited shipping to minimize downtime.
Sustainability is also a core value. The steel used in our tubing is sourced from recycled scrap, reducing the environmental impact associated with virgin metal production. The chrome coating is applied using environmentally responsible processes that limit hazardous emissions. By choosing this product, you contribute to greener manufacturing practices without compromising performance.
Allstar’s reputation is reflected in its ranking among the top sellers in the Steel Tubes category on major e‑commerce platforms, where the product consistently receives five‑star reviews for durability, finish quality, and reliable delivery. This track record demonstrates that professionals across industries trust Allstar to supply components that meet rigorous standards and deliver long‑term value.
Allstar’s manufacturing line utilizes a cold‑draw rolling technique that preserves the steel’s grain structure, resulting in a tube that maintains its mechanical properties throughout its length. After rolling, each tube undergoes a precision annealing cycle to relieve internal stresses, followed by a chrome plating process that meets ISO 14713 standards for corrosion protection. The final product is inspected with laser measurement systems that verify diameter tolerance within ±0.005 inches and wall thickness consistency, ensuring that every piece conforms to the specifications required for high‑precision engineering tasks.
Allstar also provides a library of technical resources, including CAD drawings, material data sheets, and step‑by‑step welding guides, accessible through its online portal. Customers can download these files to streamline design workflows and ensure compatibility with industry‑standard software such as SolidWorks and AutoCAD, helping teams achieve consistent results and reduce material waste. For organizations seeking to train staff, Allstar offers on‑site workshops covering best practices for cutting, bending, and joining steel tubing, helping teams achieve consistent results and reduce material waste.
Allstar’s facilities are ISO 9001 certified, confirming that the company follows internationally recognized quality management principles. The steel used complies with ASTM A36 specifications, guaranteeing a minimum yield strength of 36,000 psi and tensile strength up to 58,000 psi. This compliance is critical for customers who must meet regulatory standards in construction, automotive, and aerospace sectors. Additionally, Allstar maintains a global distribution network that ships to major industrial hubs within 2‑3 business days, ensuring rapid availability for time‑sensitive projects.
Allstar also offers flexible ordering options, allowing customers to purchase single tubes for prototyping or bulk quantities for large‑scale production runs. Our inventory management system integrates with major procurement platforms, simplifying reorder processes and ensuring that you never run out of critical material. For projects that require specific finishes or dimensions beyond the standard offering, our engineering department can work with you to develop custom specifications, providing tailored solutions while maintaining the same high level of quality control.
Allstar backs each tube with a limited one‑year warranty covering material defects, reinforcing our confidence in the product’s durability and giving customers peace of mind. Our dedicated support team is available 24/7 to address any technical inquiries promptly.
Key Features
- Robust 3/4 inch square profile with .049 inch wall thickness delivers high load capacity while remaining lightweight for easy handling and installation.
- Bright chrome‑finished silver surface provides superior corrosion resistance and a professional appearance that reduces the need for additional coating.
- Precision‑cut 7.5 foot length eliminates the need for splicing, saving time and ensuring seamless integration into frames and structures.
- Compatible with standard square‑hole fittings, brackets, and fasteners, allowing quick assembly with common hardware tools.
- Allstar offers dedicated technical support, a one‑year limited warranty, and access to CAD files and welding guides for hassle‑free project execution.
FAQ
What are the load‑bearing capabilities of the Allstar Square Mild Steel Tubing?
The tube’s 0.75 inch square cross‑section and .049 inch wall thickness give it a moment of inertia of approximately 0.0011 in⁴, which translates to a high resistance to bending under transverse loads. For mild steel with a typical yield strength of 36,000 psi, the tube can support axial loads up to roughly 2,500 pounds before permanent deformation occurs, assuming proper end support and load distribution. In practical applications such as frame construction or support brackets, engineers often design for a safety factor of 2 to 3, meaning the tube can safely carry 1,200‑1,500 pounds of static load. Dynamic or impact loads should be evaluated with additional safety margins, and the tube’s performance can be further enhanced by adding gusset plates or using welded reinforcement at critical joints.
Can the tubing be painted or coated with other finishes?
The chrome‑finished surface of the Allstar tube is designed to resist corrosion, but it also serves as an excellent base for additional coatings when a specific color or protective layer is required. Before applying paint, it is recommended to lightly sand the surface with fine‑grade abrasive to improve adhesion, then clean off any dust or oil residues. Powder coating, epoxy paint, or industrial enamel can all be applied using standard spraying or dipping methods, provided the coating is compatible with steel. The pre‑existing chrome layer does not interfere with the curing process, and the final finish will retain the tube’s dimensional stability. For applications demanding extra chemical resistance, a clear polyurethane topcoat can be added after painting.
Is the tube compatible with standard welding equipment?
The Allstar Square Mild Steel Tubing is fully compatible with common MIG and TIG welding processes used in most fabrication shops. Because the steel is mild, it does not require special filler metals; a standard ER70S‑6 wire works well for MIG, while a 6010 or 7018 rod is suitable for TIG or stick welding. Pre‑heat is generally not necessary for the .049 inch wall thickness, but a short interpass temperature of 150 °F can improve bead uniformity on longer joints. Proper joint preparation, such as cleaning the chrome surface and applying a suitable flux, will result in strong, crack‑free welds. The tube can also be brazed with silver‑based alloys when a lower temperature join is preferred.
How can I obtain CAD drawings or technical specifications for this product?
Technical drawings and CAD files for the Allstar Square Mild Steel Tubing are available through the Allstar online portal. After creating a free account, users can download 2‑D DWG, DXF, and 3‑D STEP files that include exact dimensions, hole patterns, and recommended tolerances. These files are compatible with major CAD platforms such as SolidWorks, AutoCAD, Inventor, and Fusion 360, allowing seamless integration into existing design libraries. If a customer needs a custom configuration, the engineering team can generate a tailored model based on specific length, wall thickness, or finish requirements. All files are provided at no additional charge, and support staff are ready to assist with any import or scaling issues.






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