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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 £418.00 / €522.50
Standard Loads (Kg) available: HV2 HV3 HV5 HV10 HV20 HV30 HV50 HV100.
Additional UKAS Load Calibrations for individual block £255.00 / €318.75
UKAS Recalibrations of existing blocks (Pass or Fail) £255.00 / €318.75

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 £558.00 / €697.50
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 £347.00 / €433.75
UKAS Recalibrations of existing blocks (Pass or Fail) £347.00 / €433.75

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 £558.00 / €697.50
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 £347.00 / €433.75
Recalibrations of existing blocks (Pass or Fail) £347.00 / €433.750

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 £186.00 / €238.00
 HRA 60 63 65 68 70 73 76 78 81 83 84 85 £186.00 / €238.00
 HRD 40 44 48 52 56 60 64 67 71 73 74 77 £186.00 / €238.00
 HR15N 69 72 75 78 81 83 85 88 90 91 92 93 £186.00 / €238.00
 HR30N 41 46 50 55 59 64 68 73 77 80 82 83 £186.00 / €238.00
 HR45N 19 25 31 37 43 49 55 61 66 70 72 74 £186.00 / €238.00
Additional UKAS Scale Calibrations for individual block £144.00 / €184.00
 UKAS Recalibrations for existing blocks (Pass or Fail) £144.00 / €184.00

All blocks are supplied with UKAS Certification to BS EN ISO 6508-3 and ASTM E18. All 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 £186.00 / €238.00
 HRA 22 26 31 35 40 45 47 50 53 55 59 62 £186.00 / €238.00
 HRE 75 81 87 93 100 £186.00 / €238.00
 HRF 74 80 86 91 97 100 £186.00 / €238.00
 HRG 3 18 33 41 49 58 66 74 83 £186.00 / €238.00
 HRH 94 98 £186.00 / €238.00
 HRK 38 47 56 65 73 81 86 91 95 99 £186.00 / €238.00
 HR15T 67 70 73 77 80 83 85 86 88 90 91 93 £186.00 / €238.00
 HR30T 29 36 43 49 56 63 66 69 73 76 80 83 £186.00 / €238.00
 HR45T 2 12 22 32 43 48 53 58 63 68 73 £186.00 / €238.00
Additional UKAS Scale Calibrations for individual block £144.00 / €184.00
 UKAS Recalibrations for existing blocks (Pass or Fail) £144.00 / €184.00

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.