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Reference Blocks

The following is a list of Reference blocks for Rockwell, Brinell and Vickers scales that are available for purchase from this website.

Euro Products Ltd continually updates and improves Reference block specifications through the use of cleaner materials and improvements in heat treatment processes.

Rockwell Type, Brinell Type and Macro Vickers Type Reference blocks are all available with Hexagonal or Square Grid patterns, please make sure when ordering that you select the correct size of Grid as this cannot be changed at a later time.

Other hardness values are available please contact us if there is a hardness value that you require that is not listed for either Rockwell Reference Blocks, Macro Vickers Reference Blocks, Micro Vickers Blocks, Micro Knoop Blocks or Heavy or Light Load Brinell Reference Blocks.

If you have any queries about the listed products please contact us by E-mail, Phone or Fax and we will discuss your requirements with you. The contact details can be found in the contact section on the Website.

We do produce other Reference block products that at present are not available on the website, please contact us if you require a product that is not listed and we will be pleased to assist you with your requirements.

Rockwell Type Reference Hardness Blocks Standard Scales
Size : 65mm Diameter x 15mm Thickness / 2.5" Diameter x 0.6" Thickness
SCALE HARDNESS VALUES
HRA 22 26 31 35 40 45 47 50 53 55 59 60 62 63 65 68 70 73 76 78 81 83 84 85 86 87
HRB 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
HRC 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
HRC 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
HRD 40 44 48 52 56 60 64 67 71 73 74 77 78 79
HRE 75 81 87 93 100
HRF 74 80 86 91 97 100
HRG 3 18 33 41 49 58 66 74 83
HRH 87 94 98
HRK 38 47 56 65 73 81 86 91 95 99
HRL 92 118 123
HRM 67 101 118
HRP 86 94 112
HRR 105 123 126
HRS 115 117 123
HRV 107 109 120
All available with either a UKAS certificate or EURO certificate to EN ISO 6508 & ASTM E18
Rockwell Type Reference Hardness Blocks Superficial Scales
Size : 65mm Diameter x 15mm Thickness / 2.5" Diameter x 0.6" Thickness
SCALE HARDNESS VALUES
HR15N 69 72 75 78 81 83 85 88 90 91 92 93 94
HR30N 41 46 50 55 59 64 68 73 77 80 82 83 84 85 86
HR45N 19 25 31 37 43 49 55 61 66 70 72 74 75 76 77 78
HR15T 67 70 73 77 80 83 85 86 88 90 91 93
HR30T 29 36 43 49 56 63 66 69 73 76 80 83
HR45T 2 12 22 32 43 48 53 58 63 68 73
HR15W 84 87 94
HR30W 67 73 87
HR45W 50 59 80
HR15X 92 93 96
HR30X 82 84 92
HR45X 72 76 85
HR15Y 92 93 94 95 96 98
HR30Y 90 91 95
HR45Y 85 87 94
All available with either a UKAS certificate or EURO certificate to EN ISO 6508 & ASTM E18
Macro Vickers Type Reference Hardness Block Scales
Size : 65mm Diameter x 15mm Thickness / 2.5" Diameter x 0.6" Thickness
SCALE HARDNESS VALUES
HV2 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV2.5 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV3 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV5 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV10 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV20 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV30 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV50 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
HV100 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050
All available with either a UKAS certificate or EURO certificate to EN ISO 6507 & ASTM E384
Micro Vickers Type Reference Hardness Block Scales
Size : 30mm Diameter x 10mm Thickness / 1.2" Diameter x 0.4" Thickness
SCALE HARDNESS VALUES
HV0.010 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV0.025 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV0.050 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV0.1 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV0.2 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV0.3 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV0.5 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
HV1 40 70 100 150 165 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
All available with either a UKAS certificate or EURO certificate to EN ISO 6507 & ASTM E384
Micro Knoop Type Reference Hardness Block Scales
Size : 30mm Diameter x 10mm Thickness / 1.2" Diameter x 0.4" Thickness
SCALE HARDNESS VALUES
HK0.005 40 70 100 150
HK0.010 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK0.025 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK0.050 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK0.1 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK0.2 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK0.3 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK0.5 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
HK1 40 70 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000
All available with either a UKAS certificate or EURO certificate to EN ISO 4545 & ASTM E384
Heavy Load Brinell Type Reference Hardness Block Scales
Size : 150mm x 125mm x 16mm to 20mm Thickness / 5.9" x 4.9" x 0.6" to 0.8" Thickness
SCALE HARDNESS VALUES
HBW 10/3000 100 130 150 170 200 250 300 350 400 450 500 550 600 650
HBW 10/1500 70 100 130 150 170 200 250 300
HBW 10/1000 40 45 70 100 130 150 170 200
HBW 10/500 40 45 70 100
HBW 10/250 35 45
HBW 5/750 100 130 150 170 200 250 300 350 400 450 500 550 600 650
HBW 5/250 40 45 70 100 130 150 170 200
All available with either a UKAS certificate or EURO certificate to EN ISO 6506 & ASTM E10
Light Load Brinell Type Reference Hardness Block Scales
Size : 65mm Diameter x 15mm Thickness / 2.5" Diameter x 0.6" Thickness
SCALE HARDNESS VALUES
HBW 10/100 40 70 100 130 150 170 200
HBW 5/125 40 70 100
HBW 5/62.5 40
HBW 2.5/187.5 100 130 150 170 200 250 300 350 400 450 500 550 600 650
HBW 2.5/62.5 40 70 100 130 150 170 200
HBW 2.5/31.25 40 70 100
HBW 2.5/15.625 40
HBW 1/30 100 130 150 170 200 250 300 350 400 450 500 550 600 650
HBW 1/10 40 70 100 130 150 170 200
HBW 1/5 40 70 100
HBW 1/2.5 40
All available with either a UKAS certificate or EURO certificate to EN ISO 6506 & ASTM E10
Carbide Macro Vickers Type Reference Hardness Block Scales
Size : 25mm x 25mm x 6mm Thickness / 1" x 1" x 0.2" Thickness
SCALE HARDNESS VALUES
HV10 1180 1300 1350 1420 1500 1550 1600 1640 1700 1740 1820
HV30 1180 1300 1350 1420 1500 1550 1600 1640 1700 1740 1820
All available with either a UKAS certificate or EURO certificate to EN ISO 6507 & ASTM E384
Rockwell Type Reference Hardness Blocks Standard Scales
Size : 75mm x 75mm x 10mm Thickness / 3" x 3" x 0.4" Thickness
SCALE HARDNESS VALUES
HRA 62 73 81
HRC 23 45 61
HRD 42 59 71
All available with either a UKAS certificate or EURO certificate to EN ISO 6508 & ASTM E18
Rockwell Type Reference Hardness Blocks Superficial Scales 75mm x 75mm Square
Size : 75mm x 75mm x 10mm Thickness / 3" x 3" x 0.4" Thickness
SCALE HARDNESS VALUES
HR15N 71 83 91
HR30N 44 64 78
HR45N 23 49 68
All available with either a UKAS certificate or EURO certificate to EN ISO 6508 & ASTM E18
Carbide Rockwell Type Reference Hardness Blocks Standard Scales
Size : 25mm x 25mm x 6mm Thickness / 1" x 1" x 0.2" Thickness
SCALE HARDNESS VALUES
HRA 88 89 90 91 92
All available with either a UKAS certificate or EURO certificate to EN ISO 6508 & ASTM E18
HBW-T Type Reference Hardness Blocks Standard Scales
Size : 65mm Diameter x 15mm Thickness / 2.5" Diameter x 0.6" Thickness
SCALE HARDNESS VALUES
HBW-T 2.5/62.5 72 74 76 77 84
All available with either a UKAS certificate or EURO certificate to EN ISO 6508 & ASTM E18

 

Key: Made from Aluminium
Made from Steel
Made from Aluminium or Steel Please Specify when ordering
Made from Carbide

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