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| Chinese National Standard Category: Metallographic testing method |
| English Title: | Determination of free cementite, pearlite and Widmanstaten structure in steel |
| Chinese Title: | 钢的游离渗碳体、珠光体和魏氏组织的评定方法 |
| Standard No.: | GB/T 13299-2022 |
| Category No.: | H24 |
| Issued by: | SAMR; SAC |
| Issued on: | 2022-07-11 |
| Implemented on: | 2023-2-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 13299-1991 GB/T 13299-1991 Steel - Determination of Microstructure |
| Word Count: | 20500 words |
| Similar Standards: |
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