Hardness comparison plates – Precision measurement plates for material hardness testing

Hardness comparison plates are indispensable tools for precise material hardness testing and are used for the indirect calibration and verification of hardness testing equipment. In our range, you will find hardness comparison plates that meet the highest quality standards and are ideal for use in industrial and laboratory-based testing. To ensure the reliability of your testing equipment’s results, regular checks using hardness comparison plates should be performed on your material hardness testing device. This process is an essential part of a thorough quality management system and compliance with applicable standards.

Harteprüfung mit Härtevergleichsplatten

We are a DAkkS-accredited testing laboratory and manufacturer of Isserstedt hasrdness blocks “Made in Germany”.

The hardness comparison plates are available for the Rockwell, Brinell, and Vickers testing methods. The Isserstedt hardness block is made of optimized, homogeneous steel from German production and allows for more test results due to its larger surface area.

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Request a quote for hardness comparison plates.

Select the hardness comparison plates from the table and click “Request a non-binding quote” below.

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Enter the quantity for the plates you need. You can optionally add the hardness value.

Rockwell

Required standard

Please state multiple calibration or grid lines in the notes.

No.DimensionsHardness scaleQuantityHardness value (optional)
0160 × 60 × 16 mmHRC
0260 × 60 × 16 mmHRB
0360 × 60 × 16 mmHRA
0460 × 60 × 16 mmHR45N
0560 × 60 × 16 mmHR30N
0660 × 60 × 16 mmHR15N
0760 × 60 × 16 mmHR30T
0860 × 60 × 16 mmHR15T
09100 × 100 × 16 mmHRC
10100 × 100 × 16 mmHRB
11100 × 100 × 16 mmHRA
12100 × 100 × 16 mmHR45N
13100 × 100 × 16 mmHR30N
14100 × 100 × 16 mmHR15N
15100 × 100 × 16 mmHR30T
16100 × 100 × 16 mmHR15T

Vickers

Required standard

Please state multiple calibration or grid lines in the notes.

No.DimensionsHardness scaleQuantityHardness value (optional)
01Ø 40 × 10 mmHV 0,1
02Ø 40 × 10 mmHV 0,2
03Ø 40 × 10 mmHV 0,3
04Ø 40 × 10 mmHV 0,5
05Ø 65 × 12 mmHV 1
06Ø 65 × 12 mmHV 2
07Ø 65 × 12 mmHV 3
08Ø 65 × 12 mmHV 5
09Ø 65 × 12 mmHV 10
10Ø 65 × 12 mmHV 20
11Ø 65 × 12 mmHV 30
12Ø 65 × 12 mmHV 40
13Ø 65 × 12 mmHV 50
14Ø 65 × 12 mmHV 60
15Ø 65 × 12 mmHV 100
16Ø 65 × 12 mmHV 125
17Ø 65 × 12 mmHV 150
18Ø 63 × 16 mmHV 1
19Ø 63 × 16 mmHV 2
20Ø 63 × 16 mmHV 3
21Ø 63 × 16 mmHV 5
22Ø 63 × 16 mmHV 10
23Ø 63 × 16 mmHV 20
24Ø 63 × 16 mmHV 30
25Ø 63 × 16 mmHV 40
26Ø 63 × 16 mmHV 50
27Ø 63 × 16 mmHV 60
28Ø 63 × 16 mmHV 100
29Ø 63 × 16 mmHV 125
30Ø 63 × 16 mmHV 150

Brinell

Required standard

Please state multiple calibration or grid lines in the notes.

No.DimensionsHardness scaleQuantityHardness value (optional)
0160 × 60 × 16 mmHBW 2,5/187,5
0260 × 60 × 16 mmHBW 2,5/62,5
03100 × 100 × 16 mmHBW 10/3000
04100 × 100 × 16 mmHBW 10/1500
05100 × 100 × 16 mmHBW 10/1000
06100 × 100 × 16 mmHBW 5/750
07100 × 100 × 16 mmHBW 5/250
08100 × 100 × 16 mmHBW 2,5/187,5
09100 × 100 × 16 mmHBW 2,5/62,5
10Ø 125 × 16 mmHBW 10/3000
11Ø 125 × 16 mmHBW 10/1500
12Ø 125 × 16 mmHBW 10/1000
13Ø 125 × 16 mmHBW 5/750
14Ø 125 × 16 mmHBW 5/250
15Ø 125 × 16 mmHBW 2,5/187,5
16Ø 125 × 16 mmHBW 2,5/62,5
17Ø 125 × 16 mmHBW 1/30
18Ø 125 × 16 mmHBW 1/10

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e.g. multiple calibration, grid lines or special hardness values

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What are the benefits of hardness comparison plates from a DAkkS-accredited laboratory?

Purchasing hardness comparison plates from a DAkkS-accredited laboratory guarantees you the highest accuracy and quality. DAkkS accreditation confirms that the laboratory meets the stringent requirements for measuring technology and traceability. You can rely on the fact that the plates have been tested according to applicable standards and that the calibration is traceable to national and international standards. This assurance is especially important for companies operating in regulated industries that must comply with ISO 9001 or other quality management standards.

  • Stringent requirements for measuring technology and traceability
  • Tested according to applicable standards
  • For regulated industries according to ISO 9001

Request hardness comparison plates

Recalibration of hardness comparison plates

We recalibrate your hardness comparison plates from all manufacturers within one week with a DAkkS certificate, ensuring that you can always perform precise testing.

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Correct use of hardness comparison plates

To ensure that you can reproduce the calibrated hardness value as accurately as possible, you should handle the hardness comparison plate with the same level of care.

This starts with proper storage: Always store the hardness comparison plate in its box. Even the smallest scratches or corrosion can affect test results. Such damage cannot be corrected by grinding or polishing. A plate that has been treated in this way can no longer serve as a reference.

The right hardness comparison plate for the testing method

Make sure to use a hardness comparison plate that is suitable for the specific testing method. A color-coded and symbolic labeling system on the packaging will help you avoid confusion.

Keep the working environment and the hardness comparison plate as clean as possible. The testing surface and the machine table surface must be free from grease and dust. Again, even the smallest particles between the test indenter and the hardness comparison plate, as well as between the plate and the support surface, can affect the test results.

Pay attention to the distances between the test indentations

Of course, you want to use your hardness comparison plate as economically as possible. Due to structural changes in the area of the indentation, it is essential to maintain the minimum distance between indentations as well as the distance to the edges.

By adopting this approach when handling your hardness comparison plates, you can efficiently use the plate for periodic, daily checks with your hardness testing equipment, thereby ensuring precise test results.

Do you have any questions about our hardness comparison plates?

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Call us+49 2157 82799-0