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Procedure and work instructions

Welding Procedure Specifications (ASME IX)

A WPS is a written qualified welding procedure prepared to provide direction for making production welds to Code requirements. The WPS or other documents may be used to provide direction to the welder or welding operator to assure compliance with the Code requirements. It contains all the necessary parameters such as joint details, base metals, filler metals, positions, preheat, PWHT, gas, electrical characteristic, technique etc. (including ranges). These parameters are known as WELDING VARIABLES (QG-105 & QW-250).

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