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kõvaduse Rockwelli järgi, määratuna teemant- või kõvasulamkoonuse materjali sisse surumisega jõuga 1470 N (150 kgf), skaala C (vrd HRA, HRB), the Rockwell hardness measured by indentation of diamond/hardmetal cone into a marterial with load of 1470 N (150 kgf), scale C (compare: HRA, HRB)
Rockwelli C skaala kõvadus . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/Rockwelli%20C%20skaala%20k%C3%B5vadus/1/est (31.07.2026)
