Type of base metal and suitable filler metal.
Amperage, voltage, and wire feed speed.
Preheat/interpass temperatures and welding pass sequences. Common Pipe Welding Methods Pipe Welding Procedures
A is the essential "recipe" for a project. It ensures consistency regardless of welder skill level. Key details in a WPS include: Welding Process: Specific method like MIG, TIG, or Stick. Type of base metal and suitable filler metal
Pipe welding procedures are specialized metal-joining operations used to connect pipes in high-stakes industries like oil and gas, nuclear power, and water management. Because these joints often transport pressurized or hazardous materials, they must adhere to rigorous codes such as or AWS D10.12 . The Blueprint: Welding Procedure Specification (WPS) Pipe Welding Procedures
Lincoln Electric Smaw Pipe Welding Guide - sciphilconf.berkeley.edu