TECHNICAL LIBRARY · ASTM PROCUREMENT REFERENCE
ASTM B887-25 — Cemented Carbide Coercivity Testing
Procurement reference for non-destructive magnetization-coercivity measurement of cemented-carbide products.
Edition control: Active; ASTM B887-25. This original MNK-G.S.A summary does not reproduce or replace the protected ASTM publication. Confirm the current authorised edition and governing order documents before use.
Scope in Procurement
ASTM B887-25 covers magnetization-coercivity measurement of cemented-carbide materials and products using coercive-force instrumentation.
For a controlled grade family, coercivity can support relative comparison of carbide grain size, binder content and possible carbon deficiency and can flag deviation from a specified norm.
The result is an indirect estimate rather than a complete chemical or metallographic description. Composition, magnetic binder behaviour, calibration and grade-specific correlation must be documented.
| Property | Magnetization coercivity |
| Material context | Cemented-carbide materials and products |
| Procurement role | Non-destructive comparative process and grade control |
| Scope boundary | Does not replace chemistry or direct metallographic grain-size measurement |
Where This Standard Fits
- Non-destructive hardmetal batch screening
- Monitoring variation within a defined grade family
- Supporting average grain-size comparison
- Coordinating magnetic evidence with certificate and microscopy data
Ordering and Document Controls
- Exact ASTM edition and grade family
- Binder system and nominal composition
- Specimen or product geometry and condition
- Instrument calibration and measurement orientation
- Units, reference norm and acceptance band
- Report identity, batch traceability and companion tests
Related MNK Technical Pages
Official Publication and Access Policy
Official record: ASTM B887-25 at ASTM International. Obtain authorised content through the publisher or an authorised standards distributor. Protected clauses, tables, figures and acceptance values are not reproduced here.
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