10N44 - Weldcraft 10N44 Alumina TIG Cup #12 (3/4") - 10 Pack

Technical Overview of the Weldcraft 10N44 Alumina Nozzle

The Weldcraft 10N44 is a standard Alumina TIG nozzle designed for use with 17, 18, and 26 series TIG torches. This specific nozzle is designated as size #12, which corresponds to an orifice diameter of 3/4 inch (approximately 19mm). The #12 size is frequently utilized in applications requiring a broader shield gas envelope, such as welding on reactive metals like titanium or stainless steel where atmospheric contamination must be strictly minimized, or when using larger tungsten diameters that require higher gas flow rates for adequate cooling and shielding.

Manufactured from high-grade alumina ceramic, the 10N44 offers a balance of impact resistance and thermal stability. Alumina (aluminum oxide) is the standard material for general-purpose TIG cups due to its high melting point and electrical insulating properties. While not as durable against thermal shock as silicon nitride or lava nozzles in extreme amperage applications, alumina provides excellent performance for the vast majority of AC and DC TIG welding processes. The nozzle features standard threading that mates directly with the collet body or gas lens adapter of the torch, ensuring a gas-tight seal to prevent turbulence and oxygen entrainment.

Compatibility and Specifications

This nozzle is engineered to fit the industry-standard "3 Series" consumable platform. This includes air-cooled 17 and 26 series torches, as well as water-cooled 18 series torches. It is compatible with torch bodies from major manufacturers including Weldcraft, Miller, Lincoln, CK Worldwide, and various aftermarket brands. The 10N44 is typically used in conjunction with standard collet bodies (10N series) but can also be adapted for use with specific gas lens configurations depending on the torch setup. The 3/4-inch bore is particularly useful for walking the cup on larger pipe joints or when a longer electrode stick-out is necessary to reach into corners, as the wider opening maintains laminar flow over a greater distance.

Supplied in a package of 10, these nozzles allow fabrication shops to maintain adequate inventory for high-volume production. The consistent manufacturing tolerances ensure that each nozzle threads easily onto the torch and provides a concentric gas outlet relative to the tungsten electrode, which is critical for maintaining arc stability and weld pool cleanliness.