Hardness Tester DHT-200
PLUS
20
9. Appendix
Appendix 1: Measuring range
Table 1: Impact Device – D, DC D+15 Measuring Range LD:174-900
Material
HLD
HRC
HRB
HB
HV
HS
Steel
300-900 20.0-68.0 38.4-99.5 80-647 80-940 32.5-99.5
C.W. Tool Steel
300-840 20.4-67.1
80-898
Stainless ST
300-800 19.6-62.4 46.5-101.7 85-655 85-802
Gray Cast Iron
360-650
93-334
Nodular Cast Iron
400-660
131-387
Cast Aluminum
174-560
20-159
Brass
200-550
13.5-95.3 40-173
Bronze
300-700
60-290
Copper
200-690
45-315
Table 2: Impact Device – C, Measuring Range LC: 350-950
Material
HLC
HRC
HRB
HB
HV
HS
Steel & Cast St.
350-950
20.0-69.5
80-683 80-996
31.9-99.6
Table 3: Impact Device – G, Measuring Range LG: 300-750
Material
HLG
HRC
HRB
HB
HV
HS
Steel & Cast St.
300-750
47.7-99.9 90-646
Gray Cast Iron
300-750
92-326
Nodular Cast Iron
300-750
127-364
Table 4: Impact Device – DL, Measuring Range LDL: 300-893
Material
HLD
HRC
HRB
HB
HV
HS
Steel & Cast St.
300-893
20.0-68.0 38.4-99.5 80-647 80-940 32.5-99.5
