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 a sample of Nickel steel from a broken connecting rod.
| Identifier | ExFiles\Box 76\3\ scan0038 | |
| Date | 27th February 1918 | |
| RR. 664. ROLLS-ROYCE, LIMITED. LL 169 LABORATORY REPORT ON SAMPLE OF STEEL. To: Mr Huie - Works Date: 27th Feb 1918 Re: Parly Con rod (broken) - Nickel steel in the form of: small quantity of drillings marked: No 2 received at works on: - received by: - laboratory on: 27th Feb CHEMICAL ANALYSIS. Carbon: .39 % + .01% Nickel: 3.70 % Chromium: .18 % Vanadium: .. % Tungsten: .. % Manganese: .62 % Silicon: .. % Sulphur: .. % Phosphorus: .035 % Diagonal Text: This steel probably went out through before our present method of allotment of cast was employed. Remarks, etc. Insufficient drillings to do a satisfactory complete analysis. From the above it appears that the steel was a hard one. according to our formula for Nickel steel (.39x7) + (.18+.62) x 2 + 3.70 gives the value - 8.16 This should only have been used for 4" billet or over. on the other hand there is no reason why such a steel should break in test. Signature: HCH | ||