GB/T 12773-2008
AbolishedValve steel and superalloy bars for internal combustion engines
内燃机气阀用钢及合金棒材
Application Summary AI generated
This standard specifies the technical conditions for hot-rolled and forged bars made of valve steel and superalloys used in internal combustion engines. It is applied in the manufacturing of intake and exhaust valves for automotive, marine, and industrial engine systems, ensuring material performance under high-temperature and corrosive operating conditions. The standard also covers testing methods for chemical composition, mechanical properties, and metallographic structure to qualify raw materials for valve production.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.