Jominy’s hardenability band
|
Distance in mm from quenched end Hardness in HRC (mm)
|
||||||||||||||||
|
mm
|
1,5
|
3
|
5
|
7
|
9
|
11
|
13
|
15
|
20
|
25
|
30
|
35
|
40
|
45
|
50
|
|
|
+H
|
max.
|
56
|
56
|
56
|
56
|
55
|
55
|
55
|
55
|
55
|
54
|
54
|
54
|
54
|
54
|
54
|
|
min.
|
48
|
48
|
48
|
48
|
47
|
47
|
47
|
46
|
46
|
45
|
45
|
44
|
44
|
43
|
43
|
|
|
+HH*
|
max.
|
56
|
56
|
56
|
56
|
55
|
55
|
55
|
55
|
55
|
54
|
54
|
54
|
54
|
54
|
54
|
|
min.
|
51
|
51
|
51
|
51
|
50
|
50
|
50
|
49
|
49
|
48
|
48
|
47
|
47
|
47
|
47
|
|
|
+HL*
|
max.
|
53
|
53
|
53
|
53
|
52
|
52
|
52
|
52
|
52
|
51
|
51
|
51
|
51
|
50
|
50
|
|
min.
|
48
|
48
|
48
|
48
|
47
|
47
|
47
|
46
|
46
|
45
|
45
|
44
|
44
|
43
|
43
|
|
Source:
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