Moffat has a large library of pre-qualified weld procedures, qualified in accordance with all major oil companies’ specifications. We perform regular bespoke weld procedures averaging at 30 new procedures per year for permanent & subsea works.
All of our Welders are fully coded. Our large facility has 10,761sq. ft. welding and fabrication area, this offers delegated zones for material segregation, 5 overhead 10 Te cranes and fully equipped facilities.
Material Grades: Carbon Steel, AISI 4130, S/Steel 316L, Duplex UNS 31803, Super-duplex UNS 32760-32750, Inconel 625 & Nitronic 60
Standards: ASME IX, AWS D1.1, BS EN 15614, BS EN 4515 PART 1&2 & DNV-OS-F101
Processes: GTAW, SMAW, GSFCAW & SAW
An Example Weld Procedure taken from BP Project –SHAH-DENIZ
This weld procedure involved the following steps, as illustrated below:
1. Batch testing
2. Buttering weld procedure
3. Butt weld procedure
4. Repair weld procedure