标准摘要
[中文适用范围]： 给出了用于往复式内燃机进气门和排气门的某些等级的锻造高合金材料的交货要求。 适用于棒材、线材、线材和锻件。 此外，ISO 404 的一般技术交付要求也适用。 附件A“技术补充”给出了交货后加工结果的性能值要求。 [外文原描述]： 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.
英文名称Heat-treatable steels, alloy steels and free-cutting steels — Part 15: Valve steels for internal combustion engines