This standard specifies the method used in magnetic particle testing of steel forgings and assessment on magnetic particle indication.
This standard is applicable to testing surface and near surface discontinuity of steel forgings.
This standard includes testing methods, acceptance criteria and quality classes.
2. Normative References
The following documents are indispensable for the application of this standard. For dated references, only the dated edition is applicable to this document. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
GB/T 5097 Non-destructive testing-Penetrant testing and magnetic particle testing-Viewing conditions
GB/T 9445 Non-destructive Testing - Qualification and Certification of Personnel
GB/T 12604.5 Non-destructive Testing - Terminology - Terms Used in Magnetic Particle Testing
GB/T 23907 Non-destructive Testing-Shims for Magnetic Particle Testing
3. Terms and Definitions
For the purposes of this document, the terms and definitions defined in GB/T 12604.5 apply.
3.1
Magnetic particle indication
Accumulation of magnetic particle formed by leakage field due to defects
3.2
Magnetic particle testing
A kind of non-destructive testing method for surface and near surface discontinuity of ferromagnetic materials with the help of leakage field and magnetic particle
3.3
Foreword I 1. Scope 2. Normative References 3. Terms and Definitions 4. Personnel Qualification 5. Safety and Environment Requirements 6. Items for Agreement 7. Written Procedure 8. Testing Time and Surface Preparation 9. Magnetization 10. Testing Medium 11. Viewing Conditions 12. Inspection of Comprehensive Performance 13. Recording and Explanation of Indications 14. Classification of Magnetic Particle Indication 15. Record Limits and Acceptance Criteria 16. Removal of Defects 17. Demagnetization 18. Cleaning 19. Magnetic Particle Testing Report
