Welding - GTAW Pipe Welding & Pipe Fitting Download as PDF OPTION V – GTAW PIPE WELDING & PIPE FITTING SHORT-TERM CERTIFICATE-Guided Pathway/Map Item # Title Credits WDT 115 GTAW Carbon Pipe 3 WDT 155 GTAW Carbon Pipe Lab 3 WDT 221 Pipefitting and Fabrication 3 WDT 258 Certification Lab 3 Sub-Total Credits 12 Total credits: 12 Overview Program Welding Type Short-Term Certificate