Average Impact Strength, Plate*
| Condition |
Test Temperature |
Average Charpy V-Notch Impact Strength |
| ft. - lb. |
J |
Heat-treated at 2100°F (1149°C),
Water Quenched |
RT |
103 |
140 |
*Average of 28 samples from multiple heats, 0.413" - 1.25" thick, tested during years 2007 - 2014.
Aged Plate*
| Aging Temperature |
Aging Time |
Average Charpy V-Notch Impact Strength |
| °F |
°C |
h |
ft.-lb. |
J |
| SHT |
SHT |
- |
95 |
129 |
| 1200 |
649 |
1000 |
24 |
33 |
| 4000 |
12 |
16 |
| 8000 |
15 |
20 |
| 1400 |
760 |
1000 |
10 |
14 |
| 4000 |
10 |
14 |
| 8000 |
8 |
11 |
| 1600 |
871 |
1000 |
15 |
20 |
| 4000 |
12 |
16 |
| 8000 |
15 |
20 |
| 16000 |
12 |
16 |
SHT=Solution heat-treated (not aged) * Average of four tests on 1/2-in. (12.7mm) plate from a single heat.