NDT Hardness Blocks For Bench Type Brinell Rockwell Vickers Hardness Tester

NDT Hardness Blocks for Bench type Brinell Rockwell Vickers Hardness Tester

Brinell Hardness Block .

• • Purpose: It is used for the annual indirect verification and calibration of Brinell hardness testers, as well as for the cyclic (daily) checks of hardness testers.
  • Description: Usually made of aluminum for hardness values below 200 Brinell. The surface can be either shiny - polished or matte. The hardness block is rectangular, with dimensions of 150mm x 125mm x 16mm, and is available in Brinell scales ranging from 2.5/62.5 to 10/3000, with hardness values approximately 70, 100, 150, 170, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650 HB. It comes with a UKAS certificate in accordance with ISO 6506 - 3 and ASTM E10.

    Type	Value range
    Rockwell	60-70HRC
    	35-55HRC
    	20-30HRC
    	60-70HRA
    	70-85HRA
    	85-95HRB
    	60-70HRB
    	45-55HRB (Copper)
    	30-40HRB(Copper)
    	90-100HRF
    	80-90HRF(Copper)
    Plastic Rockwell	70-94HRE (Copper)
    	100-120HRL (Copper)
    	85-100HRM (Copper)
    	114-125HRR (Copper)
    Superficial Rockwell	88-92HR15N
    	74-82HR30N
    	45-55HR30N
    	45-55HR45N
    	85-91HR15T
    	70-80HR30T
    	54-72HR45T
    Brinell	150-250HBW10/3000
    	150-250HBW5/750
    	150-250HBW2.5/187.5
    	75-125HBW10/1000
    	75-125 HBW5/250
    	75-125HBW2.5/62.5
    	250-350HBW10/3000
    	250-350HBW5/750
    	250-350HBW2.5/187.5
    Vickers	700-800HV3
    	700-800HV5
    	700-800HV10
    	700-800HV30
    	700-800HV50
    	400-600 HV5
    	400-600HV10
    	400-600 HV30
    	175-225 HV5

    Micro vickers	700-800 HV1
    	700-800 HV0.5
    	700-800 HV0.3
    	700-800HV0.2
    	400-600 HV0.2
    	400-600 HV0.1
    	175-225 HV0.1
    	175-225 HV0.05

• Rockwell Hardness Block
  • Purpose: Used to calibrate and verify the accuracy of Rockwell hardness testers. Different Rockwell hardness scales (such as HRA, HRB, HRC, etc.) require corresponding hardness blocks for calibration.
  • Principle: The Rockwell hardness test uses different indenter s and loads to press into the surface of the material. By measuring the depth difference of the indentation under the action of the pre - load and the total load, the Rockwell hardness value is obtained. The hardness block provides a standard indentation depth reference for this measurement.
• Vickers Hardness Block
  • Purpose: Used for the calibration and verification of Vickers hardness testers. It ensures that the Vickers hardness tester can accurately measure the hardness of materials.
  • Principle: The Vickers hardness test uses a diamond indenter with a 136° angle between opposite faces to press into the sample. The hardness value is represented by the quotient of the load divided by the indentation area. The Vickers hardness block has a known hardness value, and by comparing the indentation size and load on the hardness block with the standard value, the accuracy of the hardness tester can be evaluated

Vickers Hardness Tester NDT Block

NDT Hardness Blocks

NDT Hardness Blocks For Bench Type Brinell Rockwell Vickers Hardness Tester Images