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Rockwell hardness number

1

Terminological databases

Materjalitehnika terminibaas

ID 672905 Last modified 13.01.2026
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Domain strength of materials
Rockwell hardness number
HR
  • materjali kõvadust iseloomustav näitaja kasutades Rockwelli meetodit (A skaala järgi HRA, B-skaala järgi HRB, C-skaala järgi HRC jne)
  • hardness determined by Rockwell hardness test - a method of determining the hardness of materials by indenting them with hard steel ball or diamong cone; the most common hardness scales are A (HRA), B (HRB) and C (HRC)
Rockwelli kõvadusarv
Rockwell hardness number
HR abbreviation

Metroloogia terminibaas

ID 628568 Last modified 18.12.2024
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Domain metrologyunits of measurement
  • materjali kõvadus, mida väljendab Rockwelli kõvadusarv – HR, mis kuvatakse otse mõõtevahendi näidikul
  • hardness of a material, which is expressed by the Rockwell hardness number – HR, which is directly displayed on the dial
Rockwelli kõvadusarv
Usage examples
  • Rockwelli kõvadusarv on üksühikuga suurus, mis on märgitud kui HRA, HRB, HRC jne, kus viimane täht tähistab vastavat Rockwelli skaalat.
Rockwell hardness number
Usage examples
  • Rockwell hardness number is a dimensionless number noted as HRA, HRB, HRC, etc., where the last letter is the respective Rockwell scale.

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