The Web's best Machine Design Guide for Mechanical Engineers and Designers
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Need to convert
a hardness number? Use this tool to get the most common hardness
values for steel. Also provides an approximate value for tensile
strength from your hardness value.
HARDNESS CONVERSION DATA for STEEL
Hardness Value =
(enter the value you want converted)
UNITS
RockwellC-Scale
Diamond Pyramid Vickers
Brinell 10mm Standard Ball 3000 kgf Load
Brinell 10mm Hultgren Ball 3000 kgf Load
Brinell 10mm Tungsten Carbide Ball 3000 kgf Load
RockwellA-Scale, 60 kgf Load
RockwellD-Scale, 100 kgf Load
Rockwell Superficial 15 N Scale, 15 kgf Load
Rockwell Superficial 30 N Scale, 30 kgf Load
Rockwell Superficial 45 N Scale, 45 kgf Load
Shore Scleroscope
Check here if you have input a tensile strength (in psi) above and want to know what the estimated hardness is. Note that this will only be accurate for inputs between 110,740 and 245,000 psi
