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Chromium - Cr and Cr alloys

Material Name: Chromium
Recipe No.: 157
Primary Chemical Element in Material: Cr
Sample Type: Bulk
Uses: General microstructure
Etchant Name: None
Type (Macro/Micro): Micro
Etching Method: Chemical
Etchant (Electrolyte) Composition: 30 ml hydrochloric acid, 15 ml nitric acid, 45 ml glycerol.
Procedure (Condition): Few seconds to minutes.
Note: Cr and Cr alloys.
Reference: Fred Hargreaves (Ret.), Personal Etchants Database 1960-1990, Analytical Services Bookham Technology, Caswell, Towcester, Northamptonshire NN8EQ, UK.