An essay on the mystery of tempering steel : wherein the effects of that operation are fully considered / Extracted from the works of the celebrated Mons. Reaumur ; By J. Savigny.

  • René Antoine Ferchault de Réaumur
Date:
1771
Catalogue details

Licence: Public Domain Mark

Credit: An essay on the mystery of tempering steel : wherein the effects of that operation are fully considered / Extracted from the works of the celebrated Mons. Reaumur ; By J. Savigny. Source: Wellcome Collection.

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    * different degrees of hardnefs^ fteel may * f m * s » + receive by tempering, viz, that of diffe¬ rent pieces of fteel tempered at the fame • * • * * degree of heat, that Will always be the hardeft, whofe parts contain the greateft quantity of the fulphurous, and faline matter. & tt fclAft t (4 f* Mt .noiia rj. fl‘ F INIS. S-i> ■JL<
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