STANDARDIZED HARDNESS BLOCK

Description

Range of hardness

Dimensions (mm)

Weight (kg)

Brinell standardized block

200±50HBS
100±25HBS

100 x 80 x 16

1

Rockwell standardized block

80-88HRA
85-95HRB
20-30HRC
35-55HRC
60-70HRC

60 x 40 x 10

0.19

Vickers standardized block

200±25HV5
450±50HV5
450±50HV10
450±50HV30
750±50HV10

60 x 40 x 10

0.19

Superficial Rockwell standardized block

89-91HR15N
42-50HR30N
75-80HR30N
37-61HR45N
87-93HR15T
70-82HR30T　

60 x 40 x 10

0.19

Portable Brinell standardized block

200±50HBS

75 x 75 x 22

1

Hammer-hitting type Brinell standardized block

175-225HBS

150 x 12 x 12

0.17

Micro-Vickers 
standardized block

700-800HV1
700-800HV0.5
700-800HV0.2
400-500HV0.2
400-500HV0.1
200-300HV0.1
200-300HV0.05

Φ25 x 5
25 x 25 x 6

0.03

Leeb standardized block

790±40HLD

Φ90 x 55

2.7