GB/T 9451-2005
ActiveDetermination of total or effective thickness of thin surface hardened layers of steel parts
钢件薄表面总硬化层深度或有效硬化层深度的测定
Application Summary AI generated
This standard specifies methods for measuring the total or effective depth of thin surface-hardened layers on steel parts, such as those produced by carburizing, nitriding, or induction hardening. It is applied in manufacturing and quality control contexts, particularly for automotive, machinery, and tooling components where precise case depth verification is critical to ensure wear resistance and fatigue performance. The standard is used in metallurgical laboratories and production inspection to validate heat treatment processes against design specifications.
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GB/T 8121-2002
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GB/T 7232-1999
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GB/T 13324-1991
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GB/T 12603-1990
Classification and designation on metal heat treatment
GB/T 9450-2005
Steels-Determination and verification of the depth of carburized and hardened cases
GB/T 5617-2005
Determination of effective depth of hardening after induction or flame hardening of steel
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Determination of nitrided case depth and metallographic microstructure examination for steel iron parts
GB/T 12603-2005
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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.