Flo-Coat® Galvanized Steel Tubing
Flo-Coat® tube galvanized steel is the original in-line galvanized product. It is manufactured using the advanced processing technique of in-line galvanizing first introduced by Allied in 1959.
Over the years our Flo-Coat® steel tubing product has benefited from continuous advances in technologies and processes. Flo-coat® tube provides advanced levels of corrosion protection while having the ability to be painted or powder coated for aesthetic purposes with little advance preparation. In addition to its longevity, Allied's cold forming process delivers higher strength levels than other competitive tubing products. Our galvanized steel tube product typically carries a minimum 50ksi yield and 55ksi tensile strength for 15 gauge and heavier products.
Learn about the Flo-Coat® Galvanized Tubing Process!
Flo-Coat® Galvanized Tubing - Take a Quick Look Around
Flo-coat® steel tube can be found in a number of everyday applications such as commercial playgrounds. Other applications for Flo-coat® galvanized tubing include:
- Farm Gates
- Garage Door Torsion Tubes
- Conveyor Rollers
- Recreational
The most complete galvanized tube product line
With such a wide-range of uses, Flo-Coat® mechanical tube must be versatile. Flo-Coat® tube is available in a variety of shapes sizes and wall thicknesses for use in the majority of mechanical and structural applications.
| SHAPES | SIZES | GAUGE RANGE |
|---|---|---|
| Round Tubing | 0.500" - 8.750" | 7(0.180") - 22(0.028") |
| Square Tubing | 0.625" - 7.000" | 7(0.180") - 20(0.035") |
| Rectangle Tubing | 0.750" x 1.000" - 4.000" x 8.000" | 7(0.180") - 20(0.035") |
| Flat-Sided Oval Tubing | 0.750" - 1.000" - 3.000" x 5.301"* | 12(0.109") - 20(0.035") |
| Octagon | 4.783" | 8(0.165") - 12(0.109") |
*available in 12 gauge only
Flo-Coat® & Gatorshield® vs. Hot-Dip and Pre-Galvanized Steel Tubing
This chart helps buyers compare Flo-Coat and Gatorshield® galvanized steel tubing with traditional hot-dip and pre-galvanized options to identify the best solution for their application. Flo-Coat and Gatorshield® use a precision in-line galvanizing process with multiple zinc layers and a protective topcoat, delivering consistent corrosion protection, a smoother surface finish, and reliable inside-and-outside coverage. Compared to conventional alternatives, these products support easier fabrication, improved weldability, and long-term durability—helping reduce maintenance costs and extend service life in mechanical and structural applications.
| FLO-COAT® /GATORSHIELD® | HOT-DIP (SCHEDULE 40) | PRE-GALVANIZED | |
|---|---|---|---|
| Strength | 50 ksi | 30 ksi | 40 ksi |
| Coatings | 3 layers | 1 layer | 1-2 layers |
| Wall Thickness | Excellent | Limited | Good |
| Custom Mill Lengths | Any Length | Limited | Any Length |
| Weld Friendliness | Excellent | Poor | Fair |
| Zinc Thickness Control | Good | Limited | Limited |
| Mechanical Suitability | Excellent | Poor | Good |
| I.D. Weld Seam Coating | Excellent | Good | Poor |
Advanced Corrosion Protection
Allied's signature process produces superior corrosion resistance by utilizing a triple layer of protection. First 99.99% pure zinc is applied followed by a conversion coating. Finishing the process is a clear organic topcoat that seals in the protection and produces a smooth, shiny appearance.
Stronger Than Your Average Steel Tube
We guarantee a minimum 50 ksi yield and 55 ksi tensile on many of our products with the ability to achieve higher properties with different steel chemistry. Compared with many alternatives that demonstrate a 30 ksi yield, Gatorshield® demonstrates the unique ability to offer same strength in a lighter weight tube - up to 33% stronger!
Fabricate Without Flaking
Flo-Coat® tube is capable of being fabricated using several different methods including hole punching, cutting, flattening, bending and more without the degradation of the coatings. All of these operations can be performed without cracking, flaking or otherwise damaging the integrity of the coating.
You Can Weld Galvanized
Due to its 99% pure zinc coating; Flo-Coat® can be easily welded. Contrary to popular belief, all galvanized products do not perform the same with regards to welding suitability. Weld performance is an important feature of Allied's product line and one that has made it a success in several marketplaces for more than 55 years.
Eliminate Scrap Drops
There is nothing standard about our mill cut lengths. We produce the lengths that are required for your specific applications. Custom mill lengths from Allied allow you to minimize the scrap generated when having to cut standard lengths of pipe products.