Definition(s)
Welding Procedure Specification (WPS)
Written welding procedure that is qualified to provide direction for welding in accordance with requirements of this standard and describing the specific essential, nonessential, and supplementary essential variables required for each welding process.
- NOTE: These variables and their meanings are defined in ASME BPVC Section IX, Article II and Article IV.
Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards
Welding Procedure Specification
Document providing the required welding variables for a specific application to assure repeatability by properly trained welders and welding operators.
- NOTE: These variables and their meanings are defined, respectively, in Article II of the ASME Boiler & Pressure Vessel Code, Section IX—Welding and Brazing Qualifications.
Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards
Welding Procedure Specification (WPS)
Written procedure that provides instructions to the welding operator for making production welds in accordance with the requirements of this International Standard.
- NOTE: It includes all essential variables and non-essential variables for friction welding of tool joints to drill-pipe body. A WPS applies to all those welds, of which each element has the same specified dimensions and chemistry, that are grouped according to a documented procedure that ensures a predictable response to weld-zone treatment for a particular grade.
Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards