Hardness Reference Blocks

Hardness Reference Blocks

We offer high-quality hardness reference plates at fair prices for hardness testing according to Rockwell, Vickers, and Brinell. Additionally, we provide carbide plates and aluminum test plates. Convince yourself of our products and get in touch now.

What are Hardness Reference Blocks?

Hardness reference blocks are used for annual indirect calibration and periodic daily testing of hardness testing machines. Only with high-grade hardness reference blocks that identify a minimum hardness span and in turn are calibrated with a slight measurement uncertainty is it possible to guarantee the operational reliability of hardness testing machines and their traceability to the hardness standard.

Our manufacturer-independent calibrations by the laboratory – which is accredited by DAkkS according to DIN EN ISO 17025 – ensure the SiB testblock has the best possible quality assurance. The synergism of applying optimised homogeneous German steel, decades of experience in the heat treatment of hardness reference blocks, and custom CNC machining mean that you receive a premium product ‘Made in Germany’.

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  • use of optimised homogeneous German steel: hardness reference blocks „Made in Germany“!
  • production based on decades of experience in the heat treatment of hardness reference blocks
  • independent DAkkS calibration according to DIN EN ISO/ASTM
  • representation of reference marks
  • visual representation of Vickers test marks
  • free software for documenting periodic testing
  • grid lines (optional)
  • multiple calibration (optional)
  • competent advice quick availability Better safe than sorry!
  • quick availability

Rockwell

100x100x16 mm

DIN EN ISO 6508-3 395,00 €
Grid lines plus 10,00 €
Dimension Process Hardness Numbers
100x100x16-HR HRA 60, 63, 65, 68, 70, 73, 76, 79, 81, 83
100x100x16-HR HRB 98
100x100x16-HR HRC 20, 25, 30, 35, 40, 45, 50, 55, 60, 62/63
100x100x16-HR HR45N 18, 25, 30, 36, 42, 48, 54, 60, 66, 69
100x100x16-HR HR30N 40, 44, 49, 55, 60, 63, 67, 72, 76, 79
100x100x16-HR HR15N 68, 71, 74, 77, 80, 82, 85, 87, 90, 91
100x100x16-HR HR30T 80, 82
100x100x16-HR HR15T 91, 92, 93

Remark: Please note that according to Table A4.1 of ASTM E 18, the hardness reference block‘s maximum permissible surface is limited to 2.600mm². Since the SiB hardness reference block‘s diameter is 115mm, resulting in a surface of 10.381mm², its size exceeds the ASTM E 18 requirements significantly, meaning calibration according to ASTM E 18 is not possible.

Rockwell 60x60x16mm

DIN EN ISO 6508-3 260,00 €
ASTM E 18 260,00 €
DIN EN ISO 6508-3 and ASTM E 18 270,00 €
Grid lines plus 10,00 €
Dimension Process Hardness Numbers
60x60x16-HR HRA 60, 63, 65, 68, 70, 73, 76, 79, 81, 83
60x60x16-HR HRB 98
60x60x16-HR HRC 20, 25, 30, 35, 40, 45, 50, 55, 60, 62/63
60x60x16-HR HR45N 18, 25, 30, 36, 42, 48, 54, 60, 66, 69
60x60x16-HR HR30N 40, 44, 49, 55, 60, 63, 67, 72, 76, 79
60x60x16-HR HR15N 68, 71, 74, 77, 80, 82, 85, 87, 90, 91
60x60x16-HR HR30T 80, 82
60x60x16-HR HR15T 91, 92, 93


Brinell

100x100x16 mm

DIN EN ISO 6506-3 300,00 €
ASTM E 10 300,00 €
DIN EN ISO 6506-3 and ASTM E 10 310,00 €
Grid lines plus 10,00 €
Dimension Process Hardness Numbers
100x100x16-HB HBW 10/3000 200, 250, 300, 350, 400, 450, 500, 600
100x100x16-HB HBW 5/750 200, 250, 300, 350, 400, 450, 500, 600
100x100x16-HB HBW 2,5/187,5 200, 250, 300, 350, 400, 450, 500, 600
100x100x16-HB HBW 2,5/62,5 200, 250
100x100x16-HB HBW 1/30 200, 250, 300, 350, 400, 450, 500, 600
100x100x16-HB HBW 1/10 200, 250

Remark:Please note that according to Table A4.1 of ASTM E 10, the hardness reference block‘s maximum permissible surface is limited to 150cm² (ø 5mm + ø 10mm penetrators) or 40cm² (ø 1mm + ø 2.5mm penetrators). Since the permissible surface is exceeded in calibrations using the ø 1mm + ø 2.5mm penetrators, thehardness reference block‘s eective ASTM surface is marked using a square with an edge length of 63mm. The additional surface is valid according to DIN EN ISO.

Brinell - Ø125x16mm

DIN EN ISO 6506-3 330,00 €
ASTM E 10 330,00 €
DIN EN ISO 6506-3 and ASTM E 10 340,00 €
Grid lines plus 10,00 €
Dimension Process Hardness Numbers
125x16-HB HBW 10/3000 150
125x16-HB HBW 5/750 150
125x16-HB HBW 2,5/187,5 150
125x16-HB HBW 2,5/62,5 150


Vickers

Ø40x10mm & Ø65x10mm

DIN EN ISO 6507-3 395,00 €
ASTM E 384 395,00 €
DIN EN ISO 6507-3 and ASTM E 384 405,00 €
Grid lines plus 10,00 €
Dimension Process Hardness Numbers
40x10-HV HV 0,1 200, 300, 400, 550, 620, 700, 780
40x10-HV HV 0,2 200, 300, 400, 550, 620, 700, 780
40x10-HV HV 0,3 200, 300, 400, 550, 620, 700, 780
40x10-HV HV 0,5 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 1 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 2 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 3 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 5 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 10 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 30 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 50 200, 300, 400, 550, 620, 700, 780
65x10-HV HV 100 200, 300, 400, 550, 620, 700, 780

Hard Metal Plates

We also supply carbide plates with MPA calibration certificate – Example: HV10/HV30 – Hardness scale 1500/1600/1700, HV1 starting from hardness scale 1200.

Up to three calibrations are possible on one plate. Each plate comes
with a test certificate from MPA Dortmund and is supplied in a wooden
case.

Dimensions Process Features
40x35x8-HC35/1400 HV10, HV30 oder HRA Flat plate, 90 degree, grinded
40x35x8-MG18/1600 HV10, HV30 oder HRA Flat plate, 90 degree, grinded
40x35x8-HC05/1700 HV10, HV30 oder HRA Flat plate, 90 degree, grinded
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Hardness Tester / Penetrator

Härteprüfer

We supply the various diamond indenters according to the applicable procedures and standards. The geometry of the diamond indenters for hardness measurement is determined by the respective standard:

ROCKWELL Cone 120° with radius r = 0.200 mm
VICKERS Pyramid 148°7` edge angle / 136° face angle
KNOOP Rhomboid with 130° or 172°30` edge angle
BERKOVIC 3-sided pyramid (tetrahedron)

Aluminum Testing Plates

Härtevergleichsplatten ALU

Hardness reference blocks for ALU testing incl. MPA calibration certificate, optionally also UKAS and ASTM calibration in HBW 1/30; 2.5/62.5; 2.5/187.5; 5/750; 10/3000 in hardness scale 80-200 HB on request also HRA and HRB

Contact us for more information

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