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These corrosion data are mainly based on results of general corrosion laboratory tests, carried out with pure chemicals and water solutions nearly saturated with air (the corrosion rate can be quite different if the solution is free from oxygen).

All concentrations are given in weight-% and the solvent is water if nothing else is shown. The corrosion data apply to annealed materials with normal microstructure and clean surfaces, throughout.

Sodium chlorite, NaCIO2
Conc. % 5 5
Temp. °C 20 BP
Grade or type of alloy:
Carbon steel
13 Cr P
Sandvik 1802 2 2 Risk of pitting
Sandvik 3R12 2 2 and stress
Sandvik 3R60 1 2 corrosion
18Cr13Ni3Mo 1)
1 2 cracking of
17Cr14Ni4Mo 2)
0 1 stainless steels
Sandvik 2RK65 ('904L') in presence
Sanicro 28 of chlorides.
254 SMO
654 SMO
Sandvik SAF 2304
Sandvik SAF 2205
Sandvik SAF 2507 0 0
Titanium (CP Ti)

1) ASTM 317L, e.g. Sandvik 3R64
2) EN 1.4439, e.g. Sandvik 3R68