MS 2477-7:2012现行

This Malaysian Standard specifies how a preliminary welding procedure specification for overlay welding is qualified by welding procedure tests. This Malaysian Standard defines the conditions for carrying out welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables. Additional tests may be required by application standards. This Malaysian Standard applies to all welding processes suitable for overlay welding. This Malaysian Standard is applicable to all new welding procedures. However, it does not invalidate previous welding procedure tests made to former national standards or specifications. Where additional tests are carried out to make the qualification technically equivalent, they are only done on a test piece made in accordance with this Malaysian Standard. This Malaysian Standard does not apply to overlay welding where cracks are intentionally produced (e.g. special hardfacing applications).

修改采用ISO 15614-7:2007, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 7: Overlay welding