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APPENDIX 1: HARDNESS CONVERSION VALIDITY RANGES
Material
from
to
305
HV
950
MPa
474
HV
1550
MPa
305
HV
65.9
HRA
474
HV
74.9
HRA
Tool steel 1.2741 (G1)
280
HV
279
HB
424
HV
419
HB
280
HV
27.7
HRC
424
HV
43.1
HRC
280
HV
880
MPa
424
HV
1370
MPa
280
HV
62.9
HRA
424
HV
72.3
HRA
15.2 ASTM E140 - 12b (2019)
The tables of ASTM E140 - 12b (2019), used for conversion in the
alphaDUR
mini
, apply to the following materials and hardness scales:
Material
from
to
Non-Austenitic Steels
(1/2)
100
HV
100
HB
832
HV
739
HB
238
HV
20.0
HRC
940
HV
68.0
HRC
100
HV
55.0
HRB
234
HV
99.0
HRB
100
HV
112
HK
940
HV
920
HK
100
HV
88.2
HRF
137
HV
99.6
HRF
100
HV
37.2
HRA
940
HV
85.6
HRA
238
HV
40.1
HRD
940
HV
76.9
HRD
238
HV
19.6
HR45N
940
HV
75.4
HR45N
Nickel and High-Nickel
Alloys (3)
77
HV
77
HB
513
HV
479
HB
164
HV
2.0
HRC
513
HV
50.0
HRC
77
HV
30.0
HRB
309
HV
106
HRB
119
HV
136
HK
382
HV
436
HK
77
HV
73.0
HRF
309
HV
116.5
HRF
112
HV
39.0
HRA
513
HV
75.5
HRA
112
HV
8.0
HRD
513
HV
63.0
HRD
171
HV
2.0
HR45N
513
HV
54.4
HR45N
77
HV
70.0
HRE
188
HV
108.5
HRE
Cartridge Brass(4)
45
HV
42
HB
196
HV
169
HB
60
HV
10.0
HRB
196
HV
93.5
HRB
45
HV
40.0
HRF
196
HV
110.0
HRF
46
Содержание alphaDUR mini
Страница 1: ...alphaDUR mini Manual Version 1 5...
Страница 2: ......
Страница 43: ...TECHNICAL DATA Depth 23 mm Probe Diameter 19 5 mm Length 175 mm Weights Device 320 g Probe 190 g 43...
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