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 ISO record currently shows the document under systematic review. 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 is currently undergoing ISO systematic review |
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.
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