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Thermal Stability

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

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