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Hard Chrome Data for Corrosion Resistance

The following table is a general indication of the electroplating resistance of hard chrome to various corrosive agents. The corrosive resistance of hard chrome in actual use is affected by operating factors, such as temperature, concentration, aeration and the presence of other constituents in the corrosive medium. As a result, the electroplating hard chrome data in this table must be considered only an approximation. For critical conditions, it may be preferable to conduct a test in the actual solution in use and under the actual operating conditions.

Also note:

  • "C" indicates behavior at approximately 55°F
  • "H" indicates behavior at approximately 135°F
  • Except where otherwise noted results are given for 10% solutions of the chemical in water.
ChemicalExcellentModeratePoor
Acid AceticCH
Acid Benzoic Sat.C/H
Acid ButyricC/H
Acid Chromic C/H
Acid CitricCH
Acid HydrobromicC H
Acid Hybrochloric C/H
Acid Hydrofluoric C/H
Acid HydroiodicCH
Acid LacticCH
Acid NitricCH
Acid Nitric 100%C/H
Acid Oleic 100%C/H
Acid OxalicC/H
Acid Palmitic 100%C/H
C H
Acid Phosphoric c.p. 85%CH
Acid Phosphoric crude CH
Acid PicricC/H
Acid Salicylic sat.C/H
Acid Stearic 100%C/H
Acid Sulfuric CH
Acid Sulfuric 100% C/H
Acid TartaricCH
Aluminum ChlorideCH
Aluminum SulfateCH
AmmoniaC/H
Ammonium ChlorideCH
AtmosphereC/H
Barium ChlorideC/H
BeerC/H
Benzyl Chloride Sat.C/H
Benzoyl Chloride 100%C/H
Brass moltenH
Calcium ChlorideC/H
Carbon DioxideC/H
Carbon DioxideC/H
Carbon Disulfide Sat.C/H
Carbon Tetrachloride Sat.C/H
Carbon Tetrachloride 100%C/H
Chloride of Lime CH
Chloride, dryC
Chloride, moist C
Chlorobenzene sat. & 100%C/H
Copper Chloride CH
Copper SulfateC/H
Ferric ChlorideCH
Ferrous ChlorideCH
GlueC/H
Hydrogen Sulfide 100%C/H
Magnesium ChlorideC/H
Mercuric Chloride C/H
Petroleum CrudeC/H
PhenolC/H
Printing InkC
Sodium CarbonateC/H
Sodium ChlorideC/H
Sodium HydroxideC/H
Sodium SulfateCH
Stannous ChlorideC H
Sulfur 100%C/H
Sulfur DioxideC/H
SugarC/H
Tin, molten 100%H
Zinc, molten 100%H
Zinc ChlorideCH
Zinc SulfateCH

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