TECHNICAL LIBRARY · ISO PROCUREMENT REFERENCE
ISO 4499-4:2016 — Hardmetal Porosity and Carbon Defects
Procurement reference for metallographic characterization of porosity, uncombined carbon and eta-phase in hardmetals.
Edition control: Published, Edition 1 (February 2016). The record checked on 9 October 2026 shows the latest review closed on 3 September 2026 (stage 90.60); the last confirmation was in 2021. This original MNK-G.S.A summary does not reproduce or replace the protected ISO publication. Confirm the current authorised edition and governing order documents before use.
Scope in Procurement
ISO 4499-4:2016 provides metallographic methods for identifying and characterizing porosity, uncombined carbon and eta-phase in hardmetals.
These observations can support production and batch quality control, but the standard reference alone does not define a universal acceptance class for every grade or application.
The order or inspection plan should establish sampling, preparation, examination, reporting and the acceptance route that governs the specific product.
| Features | Porosity, uncombined carbon and eta-phase |
| Material context | Hardmetals |
| Procurement role | Metallographic defect and phase-control reporting |
| Review control | Published edition; latest review closed, stage 90.60 |
Where This Standard Fits
- Hardmetal batch and process qualification
- Reviewing porosity or carbon-balance evidence
- Defining metallographic inspection before production
- Coordinating supplier and independent laboratory reports
Ordering and Document Controls
- Exact standard part and edition
- Grade, batch and representative sampling plan
- Specimen preparation and examination conditions
- Feature type, distribution and documented classification
- Customer or project acceptance requirements
- Image evidence, laboratory report and traceability
Related MNK Technical Pages
Official Publication and Access Policy
Official record: ISO 4499-4:2016 at ISO. Obtain authorised content through ISO or an authorised national standards body. Protected clauses, tables, figures and acceptance values are not reproduced here.
Send Your Standards-Based Inquiry
Send the required grade, application, product form, drawing, quantity, governing standard, inspection route and delivery destination. MNK-G.S.A will review the specification and coordinate a sourcing response.
MNK-G.S.A | Industrial Procurement & Sourcing | mnkmetals.com | sales@mnkmetals.com
Technical Sources & Revision
Source: ISO. ISO 4499-4:2016
Document / edition: ISO 4499-4:2016
Source used for: The public ISO catalogue record supports the document identity, publication status and scope summary on this page. It is used for the stated material or product coverage and the named classification, inspection or test method, where applicable. It does not establish numerical acceptance limits or certify a supplied product.
Technical source review:
Review scope: the public publisher record and this procurement summary, not a clause-by-clause audit of the full standard. Use the governing publication, purchase specification and product or test documentation for acceptance.