End-Quench Hardenability Bands - 15B28 H to 1330
Tabulations of Band Limits
"J" Distance Sixteenths of an Inch 15B28 H 15B30 H 15B35H 15B37 H 15B41 H 15B48 H 15B62 H 1330 H
Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min
1 53 47 55 48 56 50 58 50 60 53 63 56 60 56 49
2 53 47 53 47 55 49 56 50 59 52 62 56 60 56 47
3 52 46 52 46 54 48 55 49 59 52 62 55 60 55 44
4 51 45 51 44 53 39 54 48 58 51 61 54 60 53 40
5 51 42 50 32 51 28 53 43 58 51 60 53 65 59 52 35
6 50 32 48 22 47 24 52 37 57 50 59 52 65 58 50 31
7 49 25 43 20 41 22 51 33 57 49 58 42 64 57 48 28
8 48 21 38 50 26 56 48 57 34 64 52 45 26
9 46 20 33 55 44 56 31 64 43 43 25
10 43 29 30 20 45 22 55 37 55 30 63 39 42 23
11 40 27 54 32 53 29 63 37 40 22
12 37 26 27 40 21 53 28 51 28 63 35 39 21
13 34 25 52 26 48 27 62 35 38 20
14 31 24 26 33 20 51 25 45 27 62 34 37
15 30 23 50 25 41 26 61 33 36
16 29 22 25 29 49 24 38 26 60 33 35
18 27 20 46 23 34 25 58 32 34
20 25 24 27 42 22 32 24 54 31 33
22 25 39 21 31 23 48 30 32
24 24 22 25 36 21 30 22 43 30 31
26 23 34 20 29 21 40 29 31
28 22 20 23 33 29 20 37 28 31

30

21 31 28 35 27 30
32 20 31 28 34 26 30

NOTE: These values were adjusted to the nearest Rockwell "C" point, and are used when points are selected and specified.


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