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).
V.C. Carburettor float, detailing its material composition and heat treatment.
| Identifier | ExFiles\Box 176\3\ img117 | |
| Date | 12th August 1940 guessed | |
| 2a Mr. Hives. Mr. Nightingale. Mr. Rowledge. Mr. Wormald. ...C.19. Re. V.C. CARBURETTOR. of the first Carburettor No. 14, tried on Mr. Hives' of Vena Contracta. The two halves of the Float were brazed, and subsequently unbrazed with difficulty. 1. COMPOSITION. The analysis of the material from which the Float was made showed the following composition: Carbon . . . 0.16 % Max. 0.17% Manganese . . . % 0.5 to 0.7% Silicon . . . % Max. 0.04% Phosphorus . . . 0.6 % Sulphur . . . % Chromium . . . % ... 1.0% This steel corresponds to Specification ... ... HEAT TREATMENT ... It should be hardened in oil from the following temperatures :- - Continued - | ||