13N11 - 13N11 Alumina TIG Cup #7 (10-Pack)

Technical Overview of the 13N11 Alumina Nozzle

The 13N11 Alumina Nozzle is a critical consumable for Gas Tungsten Arc Welding (GTAW), specifically designed to shape the flow of shielding gas over the weld pool. Manufactured from high-grade alumina ceramic, this nozzle exhibits excellent thermal properties, including high resistance to thermal shock and substantial thermal conductivity. These characteristics allow the nozzle to withstand the intense heat generated during the TIG welding process without cracking or deforming under standard duty cycles.

This specific nozzle is a Size #7, which corresponds to a bore diameter of 7/16 of an inch (approximately 11mm). It is engineered to thread directly onto standard collet bodies found in 9, 20, and 25 series TIG torches. It is important to note that this nozzle is designed for standard setups and is not compatible with gas lens collet bodies, which require the 53N series nozzles. The 13N11 is an industry-standard part, ensuring broad compatibility across various torch brands including Weldcraft, Miller, Lincoln, and CK Worldwide equivalents that utilize the 9/20 form factor.

The nozzle's surface finish is designed to resist spatter adhesion, although TIG welding typically produces minimal spatter. The ceramic composition also provides electrical insulation, preventing arc wandering or shorting if the nozzle accidentally contacts the workpiece. Supplied in a pack of 10, these nozzles ensure that operators have a consistent supply of replacement parts to maintain weld quality and shield gas integrity.