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).
Properties of a Magnalium alloy sample and the criteria for its use.
| Identifier | ExFiles\Box 36\3\ scan 049 | |
| Date | 9th June 1917 | |
| R.R. A 338 (400 T) (S.C. 520. 15-2-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1546. X. 3031 R7/B9.6.17. To EFC. from R.{Sir Henry Royce} c. to J.{Mr Johnson W.M.} c. to Wor.{Arthur Wormald - General Works Manager} for Mr. Kesterton. X. 3031 - RE MAGNALIUM In consequence of the high specific gravity, I would not take it without further proof that the magnalium you have got hold of is proper Magnalium, because I have a definite impression that genuine Magnalium is as light, or lighter than pure aluminium. It is an excellent machining alloy, but I have not seen or heard of any experience of it as a good casting alloy. Should it be an (1) extra light alloy, having (2) good casting properties and (3) standing a good Upton-Lewis test, we should continue to be interested in it. Otherwise, if it cails in any one of these three requirements, we should let the matter drop. R.{Sir Henry Royce} | ||