
Brinell Hardness Rockwell Hardness 2 Rockwell Superficial Hardness
Rockwell Rockwell
Vickers Shore Tensile
C Scale C Scale
Hardness Hardness Strength
Hardness Tungsten Hardness 2
Standard ball A scale B scale D scale 15-N scale 30-N scale 45-N scale MPa 1
Carbide ball
HRC HV HB HRA HRB HRD HS15N HS30N HS45N HS - HRC
1 : 1Mpa=1N/mm2 2 : In above table, numbers in parenthesis are only for reference. This table is abstracted from SAE J 417.