13N18 - Weldcraft 13N18 Lava TIG Cup Size 8 (10-Pack)

High-Performance Thermal Resistance with Weldcraft Lava Nozzles

The Weldcraft 13N18 Lava TIG Nozzle is a specialized consumable designed to address the rigorous demands of industrial TIG welding, particularly in environments subject to extreme thermal stress. Unlike standard alumina oxide nozzles, which serve well for general-purpose applications, this nozzle is manufactured from lava—a material machined from talc and fired to create a ceramic with exceptional thermal shock resistance. This unique composition allows the 13N18 to withstand rapid temperature changes and high levels of reflected heat without the micro-cracking often associated with standard ceramics.

This specific nozzle features a #8 orifice, providing a 1/2-inch (12.7mm) bore diameter. This size is optimal for applications requiring a medium-to-wide gas coverage area, ensuring adequate shielding of the weld pool even when the tungsten stick-out is extended. The nozzle is engineered to fit seamlessly with all major brands of 9 Series (air-cooled) and 20 Series (water-cooled) TIG torches. This universal compatibility with the industry's most common compact torch bodies makes it a versatile addition to any MRO inventory.

One of the primary engineering advantages of the Weldcraft Lava nozzle is its performance in confined spaces. In applications such as pipe welding or complex fabrication where the torch must operate in tight corners, heat is often reflected off the workpiece directly back onto the nozzle cup. Standard alumina cups can become brittle and fail under these conditions. The 13N18 Lava nozzle absorbs and dissipates this heat more effectively, significantly extending the service life of the consumable and reducing the frequency of replacements.

Supplied in a pack of 10, these nozzles offer excellent value for high-volume welding operations. By maintaining a stock of high-durability lava cups, fabrication shops can reduce downtime caused by consumable failure. Whether used in aerospace, petrochemical piping, or precision manufacturing, the Weldcraft 13N18 delivers the reliability professional welders demand.