The hardness of Ferrochrome (FeCr) depends on its composition, particularly the chromium content and the presence of carbon.
Here are typical hardness values:
High Carbon Ferrochrome (HC FeCr, ~6–8% C): 700–900 HV (Vickers Hardness)
Medium Carbon Ferrochrome (MC FeCr, ~1–4% C): 500–700 HV
Low Carbon Ferrochrome (LC FeCr, <1% C): 400–600 HV
For reference, in Rockwell hardness:
HC FeCr can reach HRC 60–65
LC FeCr is usually around HRC 40–50
