Mitutoyo HM-200A Series - Hardness Scale

No. 99MBG127A
4-14
4.2.1.2 Hardness scale
In addition to the list below, arbitrary test forces can be specified. (Refer to "5.6.3 Optional test
force setting" for the procedure.) Refer to the external view for the positions where test forces are
displayed.
Table 4-2 HM-210A hardness scale
Hardness
symbol
Test force
N (gf)
HV0.01 98.07×10
-
3
(10)
HV0.02 196.1×10
-
3
(20)
HV0.03 294.2×10
-
3
(30)
HV0.05 490.3×10
-
3
(50)
HV0.1 980.7×10
-
3
(100)
HV0.2 1.961 (200)
HV0.3 2.942 (300)
HV0.5 4.903 (500)
HV1 9.807 (1000)
Table 4-3 HM-220A hardness scale
Hardness
symbol
Test force
N (gf)
HV0.00005 0.4903×10
-
3
(0.05)
HV0.0001 0.9807×10
-
3
(0.1)
HV0.0002 1.961×10
-
3
(0.2)
HV0.0003 2.942×10
-
3
(0.3)
HV0.0005 4.903×10
-
3
(0.5)
HV0.001 9.807×10
-
3
(1)
HV0.002 19.61×10
-
3
(2)
HV0.003 29.42×10
-
3
(3)
HV0.005 49.03×10
-
3
(5)
HV0.01 98.07×10
-
3
(10)
HV0.02 196.1×10
-
3
(20)
HV0.03 294.2×10
-
3
(30)
HV0.05 490.3×10
-
3
(50)
HV0.1 980.7×10
-
3
(100)
HV0.2 1.961 (200)
HV0.3 2.942 (300)
HV0.5 4.903 (500)
HV1 9.807 (1000)
HV2 19.61 (2000)