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Waterless Kallings

Material Specific

Composition

5g CuClâ‚‚, 100ml HCl, 100ml Ethanol

Saturated

Method

Immersion

Time

30s

Alternative Names

Waterless Kalling's

Tags

stainless-steelaustenitic

Reveals

Austenite grain boundaries, sigma phase

Typical Results

Waterless version of Kalling's reagent. Similar results to Kalling's No. 2.

Color Effects

Grain boundaries dark

Compatible Materials

stainless-steelaustenitic-stainless-steel

Incompatible Materials

ferritic-steelmartensitic-steel

Application Method

Method:immersion
Typical Time:30 seconds

Preparation Notes

Dissolve 5g CuClâ‚‚ in 100ml HCl, then add 100ml ethanol. No water added.

Application Notes

Immerse sample for 30-60 seconds. Rinse with water and ethanol.

Troubleshooting

Waterless formulation of Kalling's reagent.

Storage Notes

Store in glass bottle. Shelf life: several months.

Alternative Etchants

  • Kalling's No. 2

Similar Etchants

  • Kalling's No. 2

ASTM References

ASTM E407