Norm

NEN-EN-ISO 4498:2010 en

Gesinterde metalen, met uitzondering van hardmetalen - Bepaling van schijnbare hardheid en micro-hardheid

52,53

Over deze norm

Status Definitief
Aantal pagina's 12
Commissie Metalen algemeen
Gepubliceerd op 01-07-2010
Taal Engels
This International Standard specifies methods of hardness testing of sintered metal materials, excluding hardmetals. Procedure 1 determines the apparent hardness of the whole material. Procedure 1 - applies to sintered metal materials which have either not been subjected to any heat treatment, or which have been heat treated in such a way that the hardness is essentially uniform to a depth of at least 5 mm below the surface, - applies to the surfaces of sintered metal materials which have been treated in such a way that the hardness is not uniform in the section to a depth of 5 mm below the surface, - therefore applies to materials in which the hardness is obtained essentially by surface enrichment by carbon, or by carbon and nitrogen (for example by carburizing, carbonitriding, nitrocarburizing or sulfidizing), and - applies to materials which have been induction hardened. Procedure 2 determines the microhardness of the metal phase

Details

ICS-code 77.040.10
77.160
Nederlandse titel Gesinterde metalen, met uitzondering van hardmetalen - Bepaling van schijnbare hardheid en micro-hardheid
Engelse titel Sintered metal materials, excluding hardmetals - Determination of apparent hardness and microhardness
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