scope:

Specifies how a welding procedure specification "WPS" for production welding on steel castings is approved by welding procedure tests. It defines the conditions for the execution of welding procedure approval tests and the limits of validity of an approved welding procedure for all practical welding operations within the range of variables. Tests shall be carried out in accordance with this standard unless more severe tests are specified by the relevant application standard or contract when these shall apply. This standard applies to the arc welding of steel castings. The principles of this standard may be applied to other fusion welding processes subject to agreement between contracting parties. When welding steel castings to wrought steels this standard shall be used.