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kõvadus Rockwelli järgi, määratuna teraskuuli materjali sisse surumisega jõuga 980 N (100 kgf), skaala B (vrd HRA, HRC), the Rockwell hardness measured by indentation of hard steel ball into a material with load of 980 N (100 kgf), scale B (compare: HRA, HRC)
Rockwelli B skaala kõvadus . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/Rockwelli%20B%20skaala%20k%C3%B5vadus/1/est (01.08.2026)
