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| Chinese National Standard Category: Heat treatment |
| English Title: | Determination of total or effective thickness of thin surface hardened layers of steel parts |
| Chinese Title: | 钢件薄表面总硬化层深度或有效硬化层深度的测定 |
| Standard No.: | GB/T 9451-1988 |
| Category No.: | J36 |
| Issued by: | China State Bureau of Standards |
| Issued on: | 1988-06-02 |
| Implemented on: | 1989-3-1 |
| Status: | superseded |
| Superseded by: | GB/T 9451-2005 Determination of total or effective thickness of thin surface hardened layers of steel parts |
| Superseded on: | 2006-1-1 |
| Abolished on: | |
| Superseding: | |
| Word Count: | 2500 words |
| Similar Standards: | QJ A 1181.2-1995 QJ A 1181.4-1995 QJ A 1181.5-1995 QJ A 1181.1-1995 QJ 2046A-2008 QJ A 1181.3-1995 GB/T 7232-2023 GB/T 22561-2023 GB/T 9452-2023 GB/T 39247-2020 GB/T 39191-2020 GB/T 39192-2020 GB/T 39194-2020 GB/T 38805-2020 GB/T 38749-2020 GB/T 38770-2020 GB/T 38751-2020 GB/T 38720-2020 GB/T 37559-2019 GB/T 37558-2019 |
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