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).
Material analysis report for an Oil Cooler Casing, finding it to be a poor and brittle die-cast alloy.
| Identifier | ExFiles\Box 131\5\ scan0094 | |
| Date | 19th July 1938 | |
| Rm{William Robotham - Chief Engineer}/Steadman. [Handwritten initials] Hl.2/SK.19.7.38. Research Laboratory. 1114 . Report No. A.10. Re : Oil Cooler Casing. E.85026. On analysis this does not conform to any specification. We should expect it to be a poor die cast material, owing to the fact that there is a high copper along with a high silicon content which would tend to produce a very brittle alloy. For your information we give below the analysis figures. Copper 8.64% Nickel 0.48% Magnesium Trace Silicon 2.96% Zinc 2.91% Titanium Nil Iron 0.70% [Handwritten signature: Hde Rumsby] Hl. HE | ||