Currently not available for online purchasing
Vickers Reference Hardness Blocks
NOMINAL VICKERS REFERENCE HARDNESS BLOCK VALUES
| Block size 64mm diameter x 15mm thickness. | Price |
| 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 | £498.00 |
| Standard Loads (Kg) available: HV2 HV3 HV5 HV10 HV20 HV30 HV50 HV100. | |
| Additional UKAS Load Calibrations for individual block | £313.00 |
| UKAS Recalibrations of existing blocks (Pass or Fail) | £313.00 |
All blocks are supplied with UKAS Certification to BS EN ISO 6507-3 and ASTM E92.
NOMINAL LOW FORCE VICKERS & MICRO VICKERS REFERENCE HARDNESS BLOCK VALUES
| Block size 30mm diameter x 10mm thickness. | Price |
| 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 | £667.00 |
| Low force loads available: HV1 HV0.5 HV0.3 HV0.2 HV0.1 HV0.050 HV0.025 HV0.010 | |
| Additional UKAS Load Calibrations for individual block | £414.20 |
| UKAS Recalibrations of existing blocks (Pass or Fail) | £414.20 |
All blocks are supplied with UKAS Certification to BS EN ISO 6507-3. Calibrations to ASTM E384 by request only.
Knoop Reference Hardness Blocks
NOMINAL LOW FORCE KNOOP & MICRO KNOOP REFERENCE BLOCK VALUES
| Block size 30mm diameter x 10mm thickness. | Price |
| 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 | £667.00 |
| Low force loads (kg) available: HK1 HK0.5 HK0.3 HK0.2 HK0.1 HK0.050 HK0.025 HK0.010 | |
| Additional UKAS Load Calibrations for individual block | £414.20 |
| Recalibrations of existing blocks (Pass or Fail) | £414.20 |
All blocks are supplied with a traceable laboratory certificate to ASTM E384.
Rockwell & Superficial Reference Hardness Blocks
NOMINAL LOW FORCE KNOOP & MICRO KNOOP REFERENCE BLOCK VALUES
| Block size 64mm diameter x 15mm thickness. | ||
| Scale | Nominal Reference Block Values | Price |
| HRC | 20 25 30 35 40 45 50 55 60 63 65 67 | £263.50 |
| HRA | 60 63 65 68 70 73 76 78 81 83 84 85 | £263.50 |
| HRD | 40 44 48 52 56 60 64 67 71 73 74 77 | £263.50 |
| HR15N | 69 72 75 78 81 83 85 88 90 91 92 93 | £263.50 |
| HR30N | 41 46 50 55 59 64 68 73 77 80 82 83 | £263.50 |
| HR45N | 19 25 31 37 43 49 55 61 66 70 72 74 | £263.50 |
| Additional UKAS Scale Calibrations for individual block | £225.00 | |
| UKAS Recalibrations for existing blocks (Pass or Fail) | £225.00 | |
All blocks are supplied with UKAS Certification to BS EN ISO 6508-3 and ASTM E18. All above blocks will be supplied within +/-2 Rockwell points of the nominal value.
| Block size 64mm diameter x 15mm thickness. | ||
| Scale | Nominal Reference Block Values | Price |
| HRB | 20 30 40 50 60 70 75 80 85 90 95 100 | £263.50 |
| HRA | 22 26 31 35 40 45 47 50 53 55 59 62 | £263.50 |
| HRE | 75 81 87 93 100 | £263.50 |
| HRF | 74 80 86 91 97 100 | £263.50 |
| HRG | 3 18 33 41 49 58 66 74 83 | £263.50 |
| HRH | 94 98 | £263.50 |
| HRK | 38 47 56 65 73 81 86 91 95 99 | £263.50 |
| HR15T | 67 70 73 77 80 83 85 86 88 90 91 93 | £263.50 |
| HR30T | 29 36 43 49 56 63 66 69 73 76 80 83 | £263.50 |
| HR45T | 2 12 22 32 43 48 53 58 63 68 73 | £263.50 |
| Additional UKAS Scale Calibrations for individual block | £225.00 | |
| UKAS Recalibrations for existing blocks (Pass or Fail) | £225.00 | |
All blocks are supplied with UKAS Certification to BS EN ISO 6508-3 and ASTM E18. All reference block scales using 1/16” or 1/8” diameter balls are supplied calibrated as standard using a steel ball eg. HRB (S). The same scales can also be supplied using a carbide ball eg. HRB (W) on request only. All above blocks will be supplied within +/-4 Rockwell points of the nominal value.