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).
Laboratory report on the chemical analysis of a steel crankshaft part.
| Identifier | ExFiles\Box 76\3\ scan0054 | |
| Date | 9th April 1918 | |
| RR. 864. ROLLS-ROYCE, LIMITED. LL 146 LABORATORY REPORT ON SAMPLE OF STEEL. To: By Mr Hives Date: 9th April 1918 Re: Crankshaft Vic steel in the form of: part marked: - received at works on: received by: laboratory on: 8 april 517VH.601. an unsound & hair cracked Vickers crank CHEMICAL ANALYSIS. Carbon: .37 % .38' Nickel: 3.72 % 3.63 Chromium: .82 % .85 Vanadium: - % Tungsten: - % Manganese: .69 % .32 Silicon: .057 % .07 Sulphur: .028 % .032 Phosphorus: .033 % .033 Remarks, etc. This is typical of Messrs B-B's Shafts that gave us some trouble in the past - It was found that this material - owing to high Chromium & manganese simultaneous- required a higher temper heat than usual & was difficult to refine and in many cases would not give a good stanton result. Signature: boh | ||