Thermal Stability of 244® alloy – 1400°F Tensile Data After Exposure, 0.500” Plate
| Condition |
0.2% Yield Strength |
Ultimate Tensile Strength |
Elongation |
Reduction of Area |
| ksi |
MPa |
ksi |
MPa |
% |
% |
| As-Heat Treated* |
68.9 |
461 |
103.4 |
728 |
33.5 |
32.4 |
| +1400°F/1,000 hr |
71.3 |
492 |
111.6 |
770 |
36.5 |
32.5 |
| +1400°F/8,000 hr |
62.6 |
432 |
102.8 |
709 |
60.3 |
37.2 |
*Age hardened 1400ºF / 16 h / furnace cool to 1200ºF / 32 h / air cool
Thermal Stability of 244® alloy – Room Temperature Tensile Data
After Exposure, 0.500” Plate
| Condition |
0.2% Yield Strength |
Ultimate Tensile Strength |
Elongation |
Reduction of Area |
| ksi |
MPa |
ksi |
MPa |
% |
% |
| As-Heat Treated* |
122.8 |
847 |
193.3 |
1333 |
34.7 |
39.2 |
| + 800°F/1,000 hr |
123.3 |
850 |
196.2 |
1353 |
31.8 |
37.1 |
| + 800°F/8,000 hr |
128.2 |
884 |
200.7 |
1384 |
32.3 |
20.6 |
|
| + 1200°F/1,000 hr |
122.8 |
847 |
204.6 |
1411 |
25.5 |
25.6 |
| + 1200°F/8,000 hr |
122.0 |
841 |
205.9 |
1420 |
25.4 |
27.3 |
|
| +1300°F/1,000 hr |
121.1 |
835 |
198.7 |
1370 |
24.4 |
26.4 |
| +1300°F/8,000 hr |
115.4 |
796 |
190.1 |
1311 |
15.5 |
17.0 |
|
+1400°F/1,000 hr
|
97.8 |
674 |
159.0 |
1096 |
13.1 |
13.3 |
| +1400°F/8,000 hr |
86.1 |
594 |
145.9 |
1006 |
8.7 |
6.6 |
*Age hardened 1400ºF /16h / furnace cool to 1200ºF /32h /air cool