Submitted by curator on Thu, 10/15/2015 - 16:30
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Inv. B17474
Chisel
A notch taken at 25 mm from the non-working end; magnification, 400x
Etchant: Ammonium hydroxide + hydrogen peroxide + alcoholic ferric chloride
(Sn, 0.15%; As, 1.7%; Ni, 0.88%)
A description of the microstructure is in preparation.
Microhardness: VHN: 199 ± 25 (n=5)
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