Rockwell Hardness testing Machine

In Rockwell Hardness testing machine (RHN) based on an inverse relationship to the measurements of the additional depth to which an indenter is forced by a heavy (major) load beyond the depth resulting from a previously applied (minor) load. Following components used in Rockwell hardness testing machine;

Indenter:

1. 120 degree sphero-conicall diamond indenter is used for hard material.


2. Hardened steel ball indenter with diameter of 1/16, 1/8 1/4. 1/2 inch.

Dial Gauge:

On dial gauge there are two scales , one marked inred for hundred Kg and other black for 150Kg load.

Anvil:

On the anvil the specimen rests during the test operation.