Reference number
ISO 4970:1979
© ISO 2024
ISO 4970:1979
Steel — Determination of total or effective thickness of thin surface-hardened layers
Edition 1
1979-11
Withdrawn
Withdrawn (Edition 1, 1979)

Abstract

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.

General information

  • Status
     : Withdrawn
    Publication date
     : 1979-11
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 17/SC 7
    ICS :
    77.040.99 
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