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).
Test results and chemical analysis of various special aluminium alloys at different temperatures.
| Identifier | ExFiles\Box 76\3\ scan0019 | |
| Date | 15th February 1918 | |
| R.R. A 285 (400 T) (S.C. 536. 15-2-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1548. Special Aluminium. 19/1 Test Temperature Max: Stress Yield point Elongation Reduction in Area P1 400°C 2.60 5.0 4.9 P1 320°C 6.6 5.2 1.0 0.9 P1 270°C 8.0 6.0 0.5 0.5 P1 220°C 6.4 5.2 0.3 0.3 P1 20°C 1.2 6.0 2.0 2.3 H 400°C 2.60 10.0 9.0 H 320°C 6.6 4.8 6.5 5.8 H 270°C 6.4 4.8 6.5 5.0 H 220°C 7.4 6.0 6.0 5.8 H 20°C 9.2 7.2 5.0 4.7 M1 320°C 3.2 2.4 1.0 1.0 M1 270°C 3.2 2.4 0.5 0.8 M1 220°C 4.0 2.4 0.5 0.5 M1 20°C 9.2 8.0 2.0 2.5 M2 320°C 3.2 2.4 6.0 5.0 M2 270°C 3.0 2.0 0.9 5.5 M2 220°C 5.2 2.8 2.5 3.0 M2 20°C 5.2 3.2 1.0 1.0 C 320°C 4.8 3.6 5.5 5.3 C 270°C 4.8 4.0 5.2 5.4 C 220°C 5.2 4.4 4.0 4.1 C 20°C 9.6 8.0 2.8 3.0 L 320°C 5.8 3.6 5.5 5.0 L 270°C 5.2 4.0 4.2 4.8 P2 320°C 5.8 4.4 3.0 3.2 P2 270°C 6.4 4.8 2.9 3.0 P2 220°C 6.8 4.4 2.3 2.5 P2 20°C 7.2 4.4 3.3 3.3 A 320°C 6.6 4.4 1.0 0.8 A 270°C 6.8 4.8 1.6 1.5 A 220°C 6.6 4.8 0.5 0.5 A 20°C 7.2 5.6 1.0 1.0 Analysis of Alloys. Al Cu Zn T Sb{Mr Bull/Mr Bannister} Ni Fe Si Mg P1 11.8 T - 1.3 .97 .46 .37 - H 2.4 2.7 - - - .53 .40 - M1 2.3 15.5 1.15 - - .38 .42 .10 M2 88.0 9.64 .23 T - - .33 .40 - C 2.1 13.0 - - .20 .40 .32 - L 96.4 2.2 .44 - - - .30 .38 - .18 P2 1.9 .10 - - - .37 .32 - A 10.3 - - 1.25 - .37 .30 - | ||