HAYNES® 242® alloy exhibits good resistance to corrosion by sodium-sulfate-containing sea water environment at 1200°F (650°C). Tests were performed by heating specimens to 300°F (150°C), spraying with a simulated sea water solution, cooling and storing at room temperature for a week, heating to 1200°F (650°C) for 20 hours in still air; cooling to room temperature, heating and spraying again at 300°F (150°C), and storing at room temperature for a week.
| Alloy |
Metal Loss |
Maximum Metal Affected |
| mils |
µm |
mils |
µm |
| S |
0.10 |
2.5 |
0.20 |
5.1 |
| 242® |
0.15 |
3.8 |
0.30 |
7.6 |
| B |
0.20 |
5.1 |
0.30 |
7.6 |
| 909 |
0.40 |
10.2 |
0.20 |
30.5 |