TECHNICAL LIBRARY · ASTM PROCUREMENT REFERENCE
ASTM B311-22(2026) — Cemented Carbide Density Testing
Procurement reference for water-displacement density measurement of cemented carbides and low-porosity powder-metallurgy materials.
Edition control: Current edition: ASTM B311-22(2026); checked 9 October 2026. 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 B311-22(2026) measures density by water displacement for powder-metallurgy materials with porosity <2 % and for cemented carbides. Where open pores absorb water, this method is not applicable; ASTM B962 applies instead.
Density can reveal significant composition deviation, particularly in simpler WC-Co families, but complex-carbide systems require more cautious interpretation.
A density result inside an expected range does not prove correct chemistry because different constituent changes can compensate. Density must be reviewed with composition and microstructure evidence.
| Property | Density |
| Material context | Cemented carbides and low-porosity PM materials |
| Method context | Water displacement |
| Scope boundary | Density alone cannot confirm exact carbide-grade composition |
Where This Standard Fits
- WC-Co batch and certificate review
- Checking significant composition or densification deviation
- Coordinating density with chemistry and microstructure tests
- Identifying surface-connected porosity that requires another method route
Ordering and Document Controls
- Exact ASTM edition and grade
- Batch identity and representative specimen
- Surface condition and water-absorption check
- Balance, liquid and temperature controls
- Reported density and agreed limits
- Companion chemistry, porosity, hardness and traceability evidence
Related MNK Technical Pages
Official Publication and Access Policy
Official record: ASTM B311-22(2026) 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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Technical Sources & Revision
Source: ASTM International. ASTM B311-22(2026)
Document / edition: ASTM B311-22(2026)
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.