This European Standard applies to heat resistant steel castings, for general purposes (non pressure) above 600°C. It applies also to heat resistant nickel and cobalt base alloys. This standard relates to castings manufactured from ferritic, austenitic-ferritic, austenitic steels, nickel and cobalt base alloys (characterised by their chemical composition (see table 1) and mechanical properties (see table 2)). In cases where castings are joined by welding by the founder, this European Standard applies.