Hardness Reference Test Blocks : EP
  • Hardness Reference Test Blocks : EP

Hardness Reference Test Blocks : EP

• British made hardness reference test blocks.
• Available with or without UKAS (NATA) certification.
• All Rockwell scales including superficial.
• Also available in Brinell, Vickers, Micro Vickers, Knoop. 

Click here for more info and pricing

British made hardness reference test blocks are available with or without UKAS certification and are available in all Rockwell scales including superficial.  Brinell, Vickers including micro and Knoop are also available. 

ROCKWELL & SUPERFICIAL ROCKWELL REFERENCE HARDNESS BLOCKS

SCALE

NOMINAL REFERENCE BLOCK VALUES

 

HRC

20

25

30

35

40

45

50

55

60

63

65

67

HRA

60

63

65

68

70

73

76

78

81

83

84

85

HRD

40

44

48

52

56

60

64

67

71

73

74

77

HR15N

69

72

75

78

81

83

85

88

90

91

92

93

HR30N

41

46

50

55

59

64

68

73

77

80

82

83

HR45N

19

25

31

37

43

49

55

61

66

70

72

74

                         

All UKAS reference blocks are supplied with a UKAS Certificate to BS EN ISO 6508-3 AND ASTM E18.

All NON UKAS reference blocks will be supplied with a traceable laboratory certificate.

 

Block Size: 64mm diameter x 15mm Thickness

         

All above reference blocks will be supplied within ± 2 Rockwell points of the quoted nominal value.

                         

SCALE

NOMINAL REFERENCE BLOCK VALUES

 

HRB

20

30

40

50

60

70

75

80

85

90

95

100

HRA

22

26

31

35

40

45

47

50

53

55

59

62

HRE

 

75

81

87

93

100

 

 

 

 

 

 

HRF

 

74

80

86

91

97

100

 

 

 

 

 

HRG

 

 

 

3

18

33

41

49

58

66

74

83

HRH

94

98

 

 

 

 

 

 

 

 

 

 

HRK

38

47

56

65

73

81

86

91

95

99

 

 

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

                         

All UKAS reference blocks are supplied with a UKAS Certificate to BS EN ISO 6508-3 AND ASTM E18.

All NON UKAS reference blocks will be supplied with a traceable laboratory certificate.

 

All reference block scales using 1/16" or 1/8" diameter balls can be supplied calibrated with

a steel eg. HRB (S), or a carbide ball eg. HRB (W). (Please Specify when ordering.)

 

Block Size: 64mm diameter x 15mm Thickness

         

All above reference blocks will be supplied within ± 4 Rockwell points of the quoted nominal value.

 

VICKERS REFERENCE HARDNESS BLOCKS

 

NOMINAL VICKERS HARDNESS REFERENCE BLOCK VALUES

 

 

40

70

100

150

200

250

300

350

400

450

 

500

550

600

650

700

750

800

850

900

950

 

Standard Loads (Kg) available:

 

HV2

HV3

HV5

HV10

HV20

 

         

HV30

HV50

HV100

   

 

Additional UKAS Scale Calibrations per individual reference block.

 

 

UKAS Recalibrations of existing reference blocks (PASS or FAIL)

 

 

All UKAS reference blocks are supplied with a UKAS Certificate to BS EN ISO 6507-3 AND ASTM E92.

 

All NON UKAS reference blocks will be supplied with a traceable laboratory certificate.

 

Block Size: 64mm diameter x 15mm Thickness

 

 

 

 

     

 

 

           

 

NOMINAL LOW FORCE VICKERS & MICRO VICKERS

 

 

 

REFERENCE BLOCK VALUES

         

 

40

70

100

150

200

250

300

350

400

450

 

500

550

600

650

700

750

800

850

900

950

 

Low Force Loads (Kg) available:

 

HV1

HV0.5

HV0.3

HV0.2

 

 

Micro Force Loads (Kg) available:

HV0.1

HV0.050

HV0.025

HV0.010

 

 

Additional UKAS Scale Calibrations per individual reference block.

 

 

UKAS Recalibrations of existing reference blocks (PASS or FAIL)

 

 

All UKAS reference blocks are supplied with a UKAS Certificate to BS EN ISO 6507-3 and ASTM E384.

 

All NON UKAS reference blocks will be supplied with a traceable laboratory certificate.

 

Block Size: 30mm diameter x 10mm Thickness

       

 

 


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