From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Request for specific gravity and Brinell hardness test figures for aluminium alloys.
| Identifier | ExFiles\Box 37\4\ scan 143 | |
| Date | 27th July 1917 | |
| To Na.{Mr Nadin} for Mr. Hall. From EFC. EFC1/AT27.7.17. X.3041.-SPECIFIC GRAVITY & BRINELL HARDNESS TEST OF ALUMINIUM ALLOYS. Will you kindly note that, although we have received from you specific gravity figures for Magnalium alloys M3/4,you have not favoured us with the Brinell hardness figures for these, neither have we received from you specific gravity or Brinell hardness figures for the R.A.F. B4 alloy. Will you kindly look into this and see if you can let us have these figures. EFC. | ||