Norm

NEN-EN-ISO 2639:2002 en

Staal - Bepaling en controle van de diepte van gecarboneerde en geharde buitenlagen

31,57

Over deze norm

Status Definitief
Aantal pagina's 5
Gepubliceerd op 01-11-2002
Taal Engels
This International Standard defines the case-hardened depth, and specifies methods for the determination of this depth, in steel. It is applicable to a) carburized cases and carbonitrided cases; b) parts that, when heat treated to final hardness, have a hardness of less than 450 HV 1 at a distance of three times the case-hardened depth, from the surface. The case-hardened depth is defined by special agreement where these conditions are not met. For steels that, in the part under test, and at a distance of three times the case-hardened depth from the surface, present a hardness greater than 450 HV 1, the criterion can still be used, provided that a limiting hardness value greater than 550 HV 1 - in steps of 25 units - be selected for the case-hardened depth.

Details

ICS-code 77.040.99
Nederlandse titel Staal - Bepaling en controle van de diepte van gecarboneerde en geharde buitenlagen
Engelse titel Steels - Determination and verification of the depth of carburized and hardened cases
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