Aqueous Corrosion Resistance

HAYNES® 25 alloy was not designed for resistance to corrosive aqueous media. Representative average corrosion data are given for comparison. For applications requiring corrosion resistance in aqueous environments, ULTIMET® alloy and HASTELLOY® corrosion-resistant alloys should be considered.

Alloy Average Corrosion Rate, per year
1% HCl (Boiling) 10% H2SO4 (Boiling) 65% HNO3 (Boiling)
- mils mm mils mm mils mm
ULTIMET® <1 <0.03 99 2.51 6 0.15
C-22® 3 0.08 12 0.30 134 3.40
25 226 5.74 131 3.33 31 0.79
316L 524 13.31 1868 47.45 9 0.23
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