ASTM No. 97

electrolytic

Composition

187.5g KOH, 245ml H₂O

43%

Method

electrolytic

Time

10s

Basic Information

Category:Electrolytic

Composition:187.5g KOH, 245ml H₂O

Concentration:43%

Reveals:Grain boundaries, phases

Typical Results:Electrolytic etchant for Fe-Cr-Ni alloys. Provides controlled etching for nickel alloys and stainless steels.

Color Effects:Grain boundaries dark