Aqueous Corrosion Resistance

Coupons were exposed for four 24-hour periods in various acids at the stated temperatures, and general corrosion rates were calculated from weight change measurements.

Alloy Corrosion Rate (mils per year)
- 10% HNO3 Boiling 10% H2SO4 150°F (66°C) 10% HCl 150°F (66°C)
230® 0.3 0.6 112
625 0.7 0.4 65
600  0.8 41.8 366
316 SS 1.0 17.8 3408
- <0.1 99
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