ANR3549 Features: * Lava nozzles perform better in confined areas and are less likely to crack during thermal expansion * Exceptionally high impact resistance, heat resistance and thermal conductivity * Higher heat resistance than lava nozzles * Most popular nozzle type in TIG welding * Resist splatter build-up. Recommended for most welding operations except for use in confined areas * Alumina nozzles are made from high strength alumina. Have very good electrical insulating properties * Alumina nozzles are made from high strength alumina * Have very good electrical insulating properties