Fabrication

All petrochemical assemblies at Kubota are fabricated using gas shielded tungsten arc welding techniques (GTAW), utilizing our custom brands of filler metal. GTAW is a clean technique to produce high quality welds reflecting the properties of base metal.

Our tube to tube welds are rotated with an autogenous root pass. By rotating the tube the arc is always in the 1-G position and ensures a complete root without adding filler metal. Closure welds are usually made with orbital welding machines producing a consistent machine weld every time.

Weld procedures are qualified to ASME section IX and ASTM A488. Welders hold current certificates registered with the TSSA.