Breadcrumb Home WLDG Welding WLDG-2451 WLDG-2451: Advanced Gas Tungsten Arc Welding (GTAW) Download Catalog PDF Download Page PDF Program WLDG Welding Lecture Hours 3 Lab Hours 3 Credit Hours 4 Course Type N Advanced topics in GTAW welding, including welding in various positions and directions. Prerequisites WLDG-1434.