Assigned working at Karratha Gas Plant (KGP) (Woodside) for full weld high pressure pipe, carbon steel and stainless steel Assigned working at Pilabara Ammonia Plant (YARA) to weld stainless steel pipe, acid line, using 316 tig-wire Performing weld position in 1G (being rotated0 2G, 5G and 6G in fixed position using four process of welding. Weld and operate latest machine in (STT) Surface Tension Transfer and flux core. Weld different kinds of material using GTAW/SMAW/FCAW/MIG/STT. Welding high-pressure pipe in fabrication with 100% radiographic test. Assign in welding different kinds of pipe joint such as flange joint, T-joint double ending pipe, and elbows, all are butt joint. Perform pre heating using hand torch or blowtorch to avoid cracking. Makes work progress report of the work each day. Correct application of wp's parameters with respect to consumables. Perform pre heating using hand torch or blowtorch to avoid cracking. Makes work progress report of the work each day. Using all tig in in small bore and big bore with regards with given w.p.s with accordance with Asme IX and API 1104 Help the supervisor to meet their scheduling of the work. Perform cleaning surface of joints of work pieces being welded before and after welding operationFull welding of 12mm up to 36mm but weld plate using (FCAW-GMAW) includes (T-Joint) 100% X-Ray result.