4
⚫
Narrow testing space where work piece installed
⚫
Bearings and other parts
⚫
Cases which require the test result with normalized original recording
⚫
Material identification of the metal material warehouse
⚫
Quick tests of large range and multipoint measuring positions for heavy
workpiece
1.2.2 Testing Range
Testing range see table 1 and table 2.
Table 1
Material
Hardness
method
Impact device
D/DC
D+15
C
G
E
DL
Steel and
cast steel
HRC
17.9
～
68.5
19.3
～
67.9
20.0
～
69.5
22.4
～
70.7
20.6
～
68.2
HRB
59.6
～
99.6
47.7
～
99.9
37.0
～
99.9
HRA
59.1~85.
8
61.7
～
88.0
HB
127
～
651
80
～
638
80
～
683
90
～
646
83
～
663
81
～
646
HV
83
～
976
80
～
937
80
～
996
84
～
1042
80
～
950
HS
32.2
～
99.5
33.3
～
99.3
31.8
～
102.1
35.8
～
102.6
30.6
～
96.8
Hammered
steel
HB
143~650
Cold work
tool steel
HRC
20.4
～
67.1
19.8
～
68.2
20.7
～
68.2
22.6
～
70.2
HV
80
～
898
80
～
935
100
～
941
82
～
1009
Stainless
steel
HRB
46.5
～
101.7
HB
85
～
655
HV
85
～
802
Table 1
