Brinell hardness tester selection reference.

Brinell hardness tester selection

HB, HBS, and HBW have different meanings:

1. The meaning of HB: press a hardened steel ball of a certain size (usually 10mm in diameter) into the surface of the material with a certain load (usually 3000kg) and keep it for a period of time. After the load is removed, the ratio of the load to its indentation area is is the Brinell hardness value (HB)
2. The meaning of HBS: HBS means that the indenter is a hardened steel ball.
3. The meaning of HBW: HBW means that the indenter is cemented carbide.

HB, HBS, and HBW have different properties:

1. Properties of HB: Generally, the higher the hardness, the better the wear resistance.
2. Properties of HBS: HBS is not suitable for measuring materials with higher hardness.
3. Properties of HBW: Calculate the hardness value based on the load on the unit surface area of the indentation.

HB, HBS, and HBW have different uses:

1. Purpose of HB: Used for materials with high hardness (such as cemented carbide, etc.).
2. Usage of HBS: used to measure materials with Brinell hardness value below 450, such as mild steel, gray cast iron and non-ferrous metals.
3. Purpose of HBW: used to measure materials with Brinell hardness value below 650.