1. Instrument Overview

Hardness is an important indicator of mechanical properties, which is the ability of a material to resist the pressure of another harder object with a certain shape, size, and no residual deformation on its surface.
The Rockwell hardness test is the fastest, simplest, and most economical testing method in mechanical performance testing. It not only has simple operation and high experimental efficiency, but also can directly obtain experimental results. With the rapid development of industry in our country, the Rockwell hardness test has been widely used. The
applicable range of commonly used scales such as hardness, hardness symbol, indenter type, and test range used in the HR-150A Rockwell hardness tester test:
A-scale: suitable for testing thin plate materials or surface layers, and can also be used for testing metals with a hardness exceeding 70HRC, such as hard alloys.
B scale: suitable for low hardness steel specimens made of non-ferrous metals and their alloys, as well as annealed ones. The experimental range is 20-100HRB.
C-scale: suitable for testing the hardness of steel specimens after heat treatment. The experimental range is 20-70HRC.

2. Detailed technical parameters

Initial test force: 98.07N (10kff)
Total test force: 588.4N (60kgf) 980.7N (100kgf) 1.471KN (150kgf)
Hardness resolution: 0.5HR
Maximum distance from indentation center to machine wall: 130mm
Maximum height of specimen: 170mm
Hardness tester external dimensions 457 × two hundred and forty × 629mm
Net weight of hardness tester: 75kg

3. Accessory box standard configuration

1. Diamond indenter                                  1 unit
2. Φ 1.588 steel ball pressure head            1 unit
3. Φ 1.588 tungsten carbide spare ball      1 unit
4.Large and small sample tables                1 unit
5. V-shaped sample stage                          1 unit
6. A-scale standard hardness block           1 unit
7. B-scale standard hardness block           1 unit
8. C-scale standard hardness block           3 pieces