Hardness Rockwell Testing determines the strength of a metal by measuring the depth of penetration an indenter makes on the prepared surface and a specified load. Different indenters and loads are used for different strength or hardness ranges.  Hardness Rockwell testing is a way to determine approximate strength of the material and hardness Rockwell numbers can be converted to approximate tensile strength for many alloys.

Hardness Rockwell test values are determined by measuring the depth of an area of indentation left by an indenter.

During a hardness Rockwell test, the material is indented using tungsten carbide tips (however, Rockwell 'C' scale uses a diamond tip). The tip is forced into the metal under a specified load, and the value of the depth of penetration is read from the Hardness Rockwell Scale. Hardness Rockwell testing is typically used to assist in determining the grade of metal.

Hardness Rockwell values can be measured utilizing loads of 15-150 kg.

Type of hardness Rockwell methods:

• Rockwell C       (150kg)
• Rockwell A       (60kg)
• Rockwell D       (100kg)

Samples can have a rounded or flat surface and  can be as small as 5mm x 5mm.

Hardness Rockwell testing is only conducted on metals.

Hardness test services include:

• Hardness Vickers Test
• Hardness Brinell Test
• Micro Hardness Test