WCB
WCB is an abbreviation of Wrough Carbon grade B.
WCB is covered by ASTM A216 standard, which specification covers carbon steel castings for valves, fittings, flanges and other pressure-containing parts for high temperature service and the quality required for assembly with other castings or wrought steel parts by fusion welding. These grades are all "cast" grades meaning they are made through "casting" which is a manufacturing process where a liquid material is poured into a mold and allowed to harden.
WOL
WOL is an abbreviation of WeldOLet.
Weldolet® is a registered name by Bonney Forge Corporation.
WPQ
WPQ is an abbreviation of Welder Performance Qualification.
The Welder Performance Qualification document is required by all codes for all welders. It details and summarizes the following information..
Indicates the WPS referenced during the qualification test Identifies the welder by name and/or clock number Lists what the essential parameters were during this test Reports the results of the required qualification tests Specifies qualified limits for welder
For most codes there is a time limit associated with the welder qualification test. However, the American Welding Society provides an unlimited qualification period if certain conditions are met. As with the WPS and WPQR, each code has a recommended format.
WPS
WPS is an abbreviation of Welding Procedure Specification.
The Welding Procedure Specification is a required document for all code welding. Your customer either directly or indirectly specifies to what code your company must qualify. The WPS outlines all of the parameters required to perform your welding operation.
In short the WPS is the recipe for your welding operation. It describes the welding process or processes used, the base materials used, the joint design and geometry, gases and flow rates, welding position and includes all of the process conditions and variables. Each code has a recommended format.
WT
WT is an abbreviation of Wall Thickness.
The Wall Thickness in piping terms is defined as schedule (SCH or S) and stands for the wall thickness of pipes, fittings, and some flanges.
