Question

The Brinell hardness number for mild steel is about-

• A. 5
• B. 900
• C. 130
• D. 1200

Answer 1

Answer:

C. 130

The Brinell hardness number for mild steel is 130. The Brinell Hardness Tester consists of a loading system, two ball hard steel indenters, a main screw, and a dial gauge. The indenter tool material is hardened steel and the tool shape is spherical with a diameter of 10 mm.