13N12 - ESAB 13N12 Alumina TIG Nozzle #8 (1/2 Inch) - 10 Pack

Technical Overview of the ESAB 13N12 Alumina Nozzle

The ESAB 13N12 Alumina Nozzle is a standard consumable component designed for Gas Tungsten Arc Welding (GTAW) applications. This specific nozzle is a size #8 cup, indicating an exit orifice diameter of 1/2 inch (12.7 mm). It is manufactured from high-grade alumina ceramic, a material selected for its excellent electrical insulation properties and resistance to high thermal shock. This ensures the nozzle maintains its structural integrity even under the rapid heating and cooling cycles typical of industrial welding environments.

Engineered for compatibility, the 13N12 nozzle fits standard collet bodies on 9 series (air-cooled) and 20 series (water-cooled) TIG torches, including the ESAB Heliarc HW-9 and HW-20 models. It is not designed for use with gas lens collet bodies, which typically require the 53N series nozzles. The threaded base ensures a secure mechanical connection to the torch body, preventing gas leakage and ensuring laminar flow is directed effectively over the weld pool.

This package contains 10 nozzles, providing a necessary inventory for high-volume fabrication shops. Regular replacement of TIG cups is essential for maintaining weld quality, as damaged or clogged nozzles can lead to turbulence in the shielding gas stream, resulting in porosity or oxidation of the workpiece. The ESAB 13N12 meets strict dimensional tolerances to ensure consistent performance and interchangeability with other industry-standard torch components.