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 hardness testing of cemented carbides in its stated HRA range (≥80 HRA), subject to its equipment requirements. SI units govern, with test-force and indenter-dimension conventions following ASTM E18.
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
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Technical Sources & Revision
Source: ASTM International. ASTM B294-22
Document / edition: ASTM B294-22
Source used for: The public ASTM International catalogue record supports the document identity, edition and scope summary on this page. It is used for the stated material or product coverage and the named test or inspection method, where applicable. It does not establish product conformity or replace numerical requirements in the full publication.
Technical source review:
Review scope: the public publisher record and this procurement summary, not a clause-by-clause audit of the full standard. For acceptance, use the governing publication, purchase specification and product or test documentation.