In this standard engineering hardness test, a 10-mm steel or tungsten carbide sphere is used to indent a sample.
In this standard engineering hardness test, a 10-mm steel or tungsten carbide sphere is used to indent a sample. The hardness number is then two by pi millimeters squared per kilogram, times the applied load, divided by the indentor radius, times the quantity the indentor radius minus the square root of the indentor radius squared minus the indentation radius squared, close quantity.
In this standard engineering hardness test, a 10-mm steel or tungsten carbide sphere is used to indent a sample.
{Brinell} hardness