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GB/T 9450-2025 Active
GB/T 9450-2025 Determination of the case hardening depth for steel
Abstract
This document specifies the principles, testing equipment, samples, measurement methods, result evaluation, and test reports for the depth of carburizing and carbon-nitrogen co-carburizing quenching hardening layers on steel parts.
This document is applicable to workpieces that have undergone carburizing or carbon-nitrogen co-carburizing followed by quenching and tempering heat treatment.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 9450-2025 |
| CCS | Heat treatment |
| ICS | Heat treatment |
| Implement Date | 2026-03-01 |
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