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).
Instruction sheet detailing the mechanical properties and chemical composition of special aluminium alloys at various temperatures.
| Identifier | ExFiles\Box 36\3\ scan 116 | |
| Date | 26th September 1917 | |
| R.R. 28. (2½H) S.D. (295. 15-3-17) M.P. 176550. X.3039. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr. Clark. 26. 9. 1917. Order No. Customer's No. Re Special Aluminium Alloys. M3 : M4 : AF Table 1: Headers: Bar, of Temp, Maximum Stress Tons, Yield Point, Elongation %, Reduction of Area. Data: M3, 320°C, 7.2, 6.4, 6.0, 5.1 M3, 270°C, 8.8, 7.2, 3.4, 3.0 M3, 20°C, 10.4, 9.2, 1.5, 1.5 M4, 320°C, 1.6, -, 4.4, 6.5 M4, 270°C, 2.0, -, 4.5, 6.2 M4, 20°C, 6.8, 4.4, 4.5, 4.2 AF, 320°C, 2.0, -, 5.9, 5.4 AF, 270°C, 4.8, -, 3.8, 3.0 AF, 20°C, 7.2, 4.8, 1.5, 1.5 Table 2: Headers: Analysis, Al, Cu, Zn, Sn{Mr Sanderson}, Fe, Si, Mg, Mn. Data: M3, 92.4, 2.2, -, .27, .09, .47, 4.15, - M4, 88.5, 2.63, 7.7, -, .03, .25, .38, .36 AF, 90.2, 6.35, 1.27, .94, -, .55, .38, - Signed Zin Manganese (note pointing to Mn column) This Sheet must be filed on completion of the work. | ||