JB/T 5069-1991
Metallographic Examination Method of Iron and Steel Parts (English Version)
- Standard No.
- JB/T 5069-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Machinery
- Status
- 2007-09
- Replace By
- JB/T 5069-2007
- Latest
- JB/T 5069-2007
- Scope
- This standard specifies the metallographic examination and determination methods for the metal layers of steel parts. This standard is applicable to the sample preparation, infiltration layer structure, and infiltration layer depth of steel parts after chromium infiltration, aluminum infiltration, zinc infiltration, vanadium infiltration, titanium infiltration, and niobium infiltration (it does not apply to cases where there is no obvious dividing line between the infiltration layer and the matrix). Types of steel) and inspection and determination of microhardness.
JB/T 5069-1991 history
- 2007 JB/T 5069-2007 Metallographic examination method of diffusion metallized layer of steel parts
- 1991 JB/T 5069-1991 Metallographic Examination Method of Iron and Steel Parts
