| Clause | Details |
| WLD-FAB-001 | Applicable codes for welding are ASME B31.3, ASME Boiler and Pressure Vessel Code. |
| WLD-FAB-002 | In India, additionally IBR Regulations Apply. |
| WLD-FAB-003 | Normally in hydrocarbon insustry, Carbon Steel, Alloy Steel and Stainless Steel are the base materials to be welded. |
| WLD-FAB-004 | Welding consummables include Electrodes, Filler Wires, Argon gas etc. |
| WLD-FAB-005 | Quality of welding consummables must be ensured as per Project Welding Specification. |
| WLD-FAB-006 | Argon gas shall be 99.995 Percent Pure. |
| WLD-FAB-007 | Welders must be qualified as per applicable code e.g. B31.3 |
| WLD-FAB-008 | All the welding equipment like transformers, thermocouples, pyro-meters, automatic temperature recorders, heat treatment equipmets etc. is provided by welding contractor. |
| WLD-FAB-009 | All the weld testing equipment like radiographic equipments, radiographic films, darkroom facilities, dye-penetrant testing, magnetic particle testing, ultrasonic testic etc. are provided by the welding contractor. |
| WLD-FAB-010 | Generally used welding processes are SMAW and GTAW. |
| WLD-FAB-011 | SMAW : Shielded Metal Arc Welding Process |
| WLD-FAB-012 | GTAW : Gas Tungsten Arc Welding Process |
| WLD-FAB-013 | Which welding process to be emplyed where is given in Project Welding Specification. |
| WLD-FAB-014 | Edge preparation procedure required to be carried out for different types of base materials. |
| WLD-FAB-015 | Cleaning of the edge is necessary. |
| WLD-FAB-016 | After cleaning, edges are aligned and properly spaced. Tack welding, if required is done. |
| WLD-FAB-017 | Workpieces need to be protected form weather during welding. |
| WLD-FAB-018 | Proper welding technique is usually specified in Project Welding Specification. |
| WLD-FAB-019 | Welding procedure qualification record should be submitted by Welding Contractor to the Client. |
| WLD-FAB-020 | Preheating and Post Weld Heat Treatment need to be carried out as per Project Weldng Specification. |
| WLD-FAB-021 | After welding and PWHT, Inspection and Testing of welds is done as per various testing and inspection methods specified in Project Welding Specification. |
| WLD-FAB-022 | Repairs of welds may be done if defects are within certain limits. |
| WLD-FAB-023 | Contractor has to submit various documents related to welding work done by him. |
Piping Welding
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