10N47 - 10N47 Alumina Cup #7 for WP-17/18/26 TIG Torches

Technical Overview of the 10N47 Alumina Nozzle

The Generic 10N47 Alumina Nozzle Cup is a critical consumable designed for the precision requirements of Gas Tungsten Arc Welding (GTAW). Manufactured from high-grade alumina ceramic (aluminum oxide), this nozzle offers an optimal balance of thermal conductivity, electrical insulation, and impact resistance. The #7 orifice size, measuring 7/16 of an inch (approximately 11mm) in diameter, provides a medium-width gas envelope suitable for a wide array of joint configurations, from fillet welds to butt joints on pipe and plate.

This nozzle is engineered specifically for the "3 Series" TIG torches, which encompasses the widely used air-cooled WP-17 and WP-26 models, as well as the water-cooled WP-18 models. It threads directly onto standard collet bodies (such as the 10N32 for 3/32" tungsten or 10N31 for 1/16" tungsten). It is important to note that this specific part number, 10N47, is designed for standard setups and is not compatible with gas lens collet bodies, which require the 54N series nozzles. The threaded interface is precision-molded to ensure a gas-tight seal against the torch insulator, preventing atmospheric contamination of the weld pool.

Alumina ceramic is the industry standard for TIG nozzles due to its ability to withstand the intense radiant heat generated by the welding arc without fracturing or melting. The material possesses a high dielectric strength, which is essential for preventing arc wander and ensuring that the welding current is directed solely from the tungsten electrode to the workpiece. The 10N47's wall thickness is calculated to provide durability against accidental drops while maintaining a slim profile for visibility in tight corners. This component meets or exceeds the specifications of OEM parts from major manufacturers like Weldcraft, Miller, and CK Worldwide, offering a reliable solution for maintaining shielding gas laminar flow.

In industrial applications, the consistency of the nozzle orifice is paramount. Irregularities or chips in the ceramic can cause turbulence in the shielding gas stream, leading to porosity or oxidation in the weld. This generic replacement part is manufactured to tight tolerances to ensure consistent gas flow dynamics, allowing for stable arc starts and clean weld beads across various materials including stainless steel, carbon steel, and aluminum.