MATERIAL |
CORE Rc |
STRESS RELIEVING TEMPERATURE(
F) |
| 1020, 1045, CAST IRON |
14 - 18 |
950 - 975 |
| 8620, 9310, 9315, P6 |
26 - 32 |
950 - 975 |
| 4130, 4140 |
28 - 32 |
975 - 1050 |
| 4340 |
28 - 32 |
975 - 1050 |
| P20 |
28 - 36 |
975 - 1050 |
| NITRALLOY 135M |
28 - 36 |
975 - 1050 |
| 304, 316 S.S. |
0 (Rb 80) |
950 - 975 |
MATERIAL |
CORE Rc |
TEMPERING
TEMPERATURE( F) |
NUMBER OF TEMPERS |
| A2 |
54 - 58 |
950 - 975 |
2 |
| D2, D4, D6 |
56 - 59 |
950 - 975 |
2 |
| H13 |
45 - 52 |
950 - 975 |
3 |
| S7 |
50 - 52 |
950 - 975 |
2 |
| M2, M42 |
60 - 65 |
1025 - 1050 |
3 |
| 15-5, 17-4 PH S.S. |
31 - 38 |
950 - 975 |
1 |
| 420, 440C S.S. |
40 - 45 |
950 - 975 |
2 |
|
