Aciers pour traitement thermique, aciers alliés et aciers pour décolletage — Partie 15: Aciers pour soupapes de moteurs à combustion interne

Gives the requirements of delivery for certain grades of wrought high-alloy materials used for intake and exhaust valves in reciprocating internal combustion engines. Is applicable to bars, wire, wire rod and forgings. In addition, the general technical delivery requirements of ISO 404 are applicable. Annex A "Technical Supplement" gives requirements for property values as the result of processing after delivery.