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Lichtenegger-Bloech's etchant (L-B) - Austenitic CrNi steels

Material Name: Steels
Recipe No.: 9459
Primary Chemical Element in Material: Fe
Sample Type: Bulk
Uses: General microstructure
Etchant Name: Lichtenegger-Bloech's etchant (L-B)
Type (Macro/Micro): Micro
Etching Method: Chemical
Etchant (Electrolyte) Composition: 20 g NH4F·HF (ammonium difluoride) + 0.5 g K2S2O5 (potassium metabisulfite) + 100 ml of distilled water.
Procedure (Condition): No data
Note: Austenitic CrNi steels.
Reference: G. Petzow, Metallographic Etching, 2nd Edition, ASM International, USA, 1999.