13N08 - Weldcraft 13N08 Alumina TIG Nozzle Cup #4 (10-Pack)

Technical Overview of the Weldcraft 13N08 Alumina Nozzle

The Weldcraft 13N08 Alumina Nozzle is a critical consumable component designed for precision Gas Tungsten Arc Welding (GTAW). Engineered to fit the industry-standard 9, 20, and 25 series TIG torches, this nozzle features a #4 orifice size, corresponding to a 1/4-inch (6.4mm) diameter opening. The nozzle is manufactured from high-grade alumina ceramic, a material selected for its exceptional balance of thermal properties and mechanical strength. Alumina (aluminum oxide) provides significant resistance to high temperatures, ensuring the nozzle maintains its structural integrity even during prolonged welding cycles at elevated amperages typical of the compatible torch series.

This specific model, the 13N08, attaches directly to the standard collet body of the torch assembly. Its threaded base ensures a gas-tight seal, directing the shielding gas—typically Argon or Helium—in a laminar flow pattern over the weld pool and tungsten electrode. The #4 size is particularly advantageous for applications requiring access to confined spaces or where a narrower gas column is sufficient to protect the molten puddle. The ceramic composition also offers high impact resistance compared to lower-grade materials, reducing the frequency of replacement due to accidental drops or thermal shock cracking.

In industrial MRO environments, the consistency of consumables is paramount to maintaining weld quality. The Weldcraft 13N08 is manufactured to tight tolerances, ensuring that the gas outlet remains perfectly circular and centered around the electrode. This concentricity is vital for preventing turbulence in the shielding gas stream, which can lead to porosity or oxidation in the weld. Supplied in a pack of 10, these nozzles provide a reliable inventory solution for fabrication shops, ensuring that operators have immediate access to replacements when wear or contamination occurs.

Compatibility extends across a wide range of torch brands that adhere to the standard 9/20 series form factor, including Weldcraft, Miller, Lincoln, and CK Worldwide standard setups. It is not designed for use with gas lens collet bodies, which require the 53N series nozzles, but rather for standard setups utilizing 13N series collet bodies.