TECHNICAL LIBRARY · ASTM PROCUREMENT REFERENCE
ASTM B294-22 — Cemented Carbide Hardness Testing
Procurement reference for Rockwell HRA hardness testing and traceable comparison of cemented-carbide materials.
Edition control: Active; ASTM B294-22. 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 B294-22 covers Rockwell HRA hardness testing of cemented carbides within the method’s defined range and equipment route.
Hardness can support comparison of wear-resistance and toughness tendencies within a composition family and can indicate metallurgical quality for a specific grade.
Hardness is not sufficient by itself to identify a grade or establish application suitability. Indenter, test blocks, surface condition, specimen thickness and measurement practice must be controlled.
| Property | Rockwell HRA hardness |
| Material context | Cemented carbides within the method range |
| Procurement role | Hardness and metallurgical-quality evidence |
| Scope boundary | Not a stand-alone grade identity or fitness-for-service test |
Where This Standard Fits
- Hardmetal certificate and batch review
- Comparing results produced by the same controlled method
- Checking metallurgical consistency within a grade
- Coordinating hardness with density, TRS and microstructure evidence
Ordering and Document Controls
- Exact ASTM edition and ordered grade
- Specimen thickness, geometry and surface preparation
- Rockwell tester, diamond indenter and verification blocks
- Measurement locations and number of readings
- Reported HRA results and uncertainty controls
- Acceptance criteria, report and traceability
Related MNK Technical Pages
Official Publication and Access Policy
Official record: ASTM B294-22 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.
Send Your Standards-Based Inquiry
Send the required material, grade, product form, drawing, dimensions, quantity, governing standard, inspection route and delivery destination. MNK-G.S.A will review the specification and coordinate a sourcing response.
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