The wires provide benefits for welding thicker, heavier plates (3/16-inch thickness and up) and applications that require high productivity. This helps reduce the time and money spent on inventory management. Some wires are designed to address specific needs, like lower fume or manganese exposure, or to resist moisture absorption in challenging environments and applications, which is a benefit of seamless, copper-coated wires.įabCO Triple 7 wire from Hobart meets the requirements of both T-1 and T-9 classifications without sacrificing performance or mechanical characteristics - maximizing the versatility of these wires.īecause many T-1 and T-9 wires are general-purpose wires designed for many applications, they allow manufacturers to maximize versatility by using the same wire for a broad range of jobs - perhaps even for every welding need in the operation. These specialty wires are good for niche jobs and may have enhanced mechanical properties, low diffusible hydrogen classifications or improved ability to weld through coatings or contamination. Some are designed as “do it all” wires that provide great versatility, while others are designed to address very specific applications or needs. Within the T-1 and T-9 product category, there are many different products available in the market today with varying strengths and weaknesses. A T-1 wire must meet toughness requirements when tested at 0° F, while a T-9 wire is required to test at -20° F. The difference between a T-1 designation and T-9 designation is that a T-9 wire must meet toughness standards at a lower temperature.
These powders, along with either silica, alumina or zircon act as a flux during welding to form a protective slag over the completed weld. Titanium dioxide from the mineral rutile composes most of the flux in these wires (T-1 and T-9 wires have a rutile-based slag). The base composition of the powder inside the tubular wire is the same for both T-1 and T-9 wires. This dual classification means the wire meets the requirements of both classifications without sacrificing performance or mechanical characteristics - maximizing the versatility of these wires. They are the most common flux-cored wires used in industrial welding.įew wires are classified only as T-1, but many wires in this category are classified as both T-1 and T-9, such as the FabCO® Triple 7 wire from Hobart. Mild steel, gas-shielded flux-cored welding wires are classified under American Welding Society (AWS) A5.20 – Specification for Carbon Steel Electrodes for Flux-Cored Arc Weldingwith the 1 or 9 usability designators (T-1 and T-9). These wires are especially suited to applications that involve welding thicker materials, typically thicker than 3/16 inch.
From structural steel and shipbuilding to railcar fabrication, T-1 and T-9 wires offer performance and versatility to meet a wide variety of applications.
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