ISO 4970:1979 PDF
Steel — Determination of total or effective thickness of thin surface-hardened layers
Open preview (PDF)Steel — Determination of total or effective thickness of thin surface-hardened layersSteel — Determination of total or effective thickness of thin surface-hardened layers
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 4
- Publication date:
- November 1, 1979
- Edition:
- ISO IS 4970 edition 1 version 1
- ICS:
- 77.040.99
Specifies the micrographic method and the microhardness measurement method. Applies to thin surface layers, with thicknesses of less than or equal to 0.3 mm, obtained, for example, by mechanical (shot blasting, shot peening, etc), thermal (flame or induction hardening, etc) or thermochemical (carbonitriding, carburizing and hardening, etc) treatment. It is not applicable to thin surface layer which are not continuous with the basis metal.
Technical details
- Technical committee
- ISO/TC 17/SC 7 - Methods of testing (other than mechanical tests and chemical analysis)
- SKU
- ISO 4970:1979


