Page:Experimental researches in chemistry and.djvu/83

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68
On the Alloys of Steel.
[1822.

Table of Specific Gravities of Alloys, &c. mentioned in the preceding Paper.

Iron, unhampered 7.847
Wootz, unhampered (Bombay) 7.665
Wootz, tilted (Bombay) 7.6707
Wootz, in cake (Bengal) 7.730
Wootz, fused and hammered (Bengal) 7.787
Meteoric iron, hammered 7.965
Iron, and 3 per cent. nickel 7.804
Iron,and 10 per cent. nickel 7.849
8.100
7.684
Steel, and 1 per cent. gold, hammered 7.870
7.808
Steel, and 15 per cent. platinum,hammered 7.732
7.795
7.750
Platinum 50, and steel 50, unhampered[1] 9.862
Platinum 90, and steel 20, unhammered[2] 15.880
Platinum, hammered and rolled 21.250

On the Alloys of Steel. By Stodart and Farady[3].
[Read March 21 1822]

The alloys of steel made on a small scale in the laboratory of the Royal Institution proving to be good, and the experiments having excited a very considerable degree of interest both at home and abroad, gave encouragement to attempt the work on a more extended scale; and we have now the pleasure of stating, that alloys similar to those made in the Royal Institution have been made for the purpose of manufacture; and that they prove to be, in point of excellence, in every respect equal, if not superior to the smaller productions of the laboratory. Previous, however, to extending the work, the former experiments were carefully repeated, and to the results were added some new combinations, namely, steel with palladium,

  1. The calculated mean specific gravity of this alloy is 11.2723, assuming the specific gravity of platinum and steel as expressed in this Table.
  2. The calculated mean specific gravity of this alloy is 16.0766.
  3. Philosophical Transactions, 1822, p. 253; also Phil. Mag. vol. lx. p. 363.