| HAYNES® 242® alloy exhibits
significantly lower thermal
expansion characteristics than
most nickel-base high-temperature
alloys in the range of
temperature from room temperature
to 1600°F (870°C). Although its expansion is greater than
that for alloy 909 below 1000°F
(540°C), at higher temperatures,
the difference narrows
considerably. |
Total Thermal Expansion, Room to Elevated Temperature |
|
Mean Coefficient of Thermal Expansion |
| The following compares the mean coefficient of expansion for several alloys: |
| |
Mean Coefficient of Expansion |
| |
From RT to Temperature, in./in.-°F (mm/mm-°C) x 10-6 |
| |
|
| Material |
1000°F |
(540°C) |
1100°F |
(595°C) |
1200°F |
(650°C) |
1300°F |
(705°C) |
1400°F |
(760°C) |
|
| Alloy 909 |
5.0 |
(9.0) |
5.4 |
(9.7) |
5.8 |
(10.4) |
6.2 |
(11.2) |
6.6 |
(11.9) |
| 242® alloy |
6.8 |
(12.2) |
6.8 |
(12.3) |
7.0 |
(12.6) |
7.2 |
(13.0) |
7.7 |
(13.9) |
| Alloy B |
6.7 |
(12.0) |
6.7 |
(12.0) |
6.7 |
(12.0) |
6.9 |
(12.4) |
7.1 |
(12.8) |
| Alloy N |
7.3 |
(13.1) |
7.4 |
(13.3) |
7.5 |
(13.5) |
7.6 |
(13.7) |
7.8 |
(14.0) |
| Alloy S |
7.4 |
(13.2) |
7.5 |
(13.5) |
7.6 |
(13.7) |
7.8 |
(14.0) |
8.0 |
(14.4) |
| Alloy X |
8.4 |
(15.1) |
8.5 |
(15.3) |
8.6 |
(15.5) |
8.6 |
(15.7) |
8.8 |
(15.8) |
|
