13N12 - Weldcraft 13N12 #8 Alumina TIG Cup (10-Pack)

Genuine Weldcraft 13N12 Alumina Nozzle #8 (1/2")

The Weldcraft 13N12 Alumina Nozzle is a premium TIG welding consumable designed for precision and durability in demanding industrial environments. Manufactured by Miller Electric under the Weldcraft brand, this size #8 nozzle features a 1/2-inch (12.7mm) orifice, providing optimal shielding gas coverage for medium-amperage applications. Constructed from high-grade alumina ceramic, this nozzle offers superior thermal shock resistance and impact strength compared to standard lava nozzles, ensuring it maintains structural integrity even under high-heat conditions.

This nozzle is engineered to fit a comprehensive range of air-cooled and water-cooled TIG torches. It is fully compatible with the industry-standard 9 Series (air-cooled) and 20 Series (water-cooled) torch bodies. Specifically, it fits Weldcraft models including the A-125, A-150, A-200, and A-250, as well as the W-200 Pencil Flex, W-225, W-250, W-280, and high-amperage W-375 and W-410 models. The standardized threading ensures a secure fit on the collet body, preventing gas leakage and ensuring a stable arc environment for critical welds.

The 13N12 is a standard length nozzle, distinct from gas lens nozzles or long-neck variations. It is ideal for general fabrication where access to the joint is not restricted. The alumina composition resists spatter adhesion, making cleanup easier and extending the service life of the consumable. Sold in a convenient package of 10, this product ensures that professional fabricators have a steady supply of replacement parts to maintain productivity and weld quality without frequent interruptions.

Technical specifications include a high dielectric strength to prevent arcing to the nozzle and a thermal conductivity profile that helps dissipate heat away from the front end of the torch. Whether welding stainless steel, aluminum, or mild steel, the consistent gas flow provided by the #8 cup size helps minimize porosity and oxidation in the weld pool, delivering the high-quality results expected from Weldcraft components.