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 steel from a failed connecting rod.
| Identifier | ExFiles\Box 76\3\ scan0043 | |
| Date | 20th March 1918 | |
| RR. 864. ROLLS-ROYCE, LIMITED. LL 143 LABORATORY REPORT ON SAMPLE OF STEEL. To: E.P.; By Mr Hives Date: 20th March 1918 Re: steel in the form of: Con. rod marked: failed received by: Details not yet to hand. CHEMICAL ANALYSIS. 920 Carbon: .32-.42 .37 % .38 .40 Nickel: 3.3-3.8 3.38 % 3.64 3.76 Chromium: .30 1.46 % liners .18 Vanadium: .17 % Tungsten: -- % Manganese: .5-.8 .65 % .65 .62 Silicon: .06 % .14 -- Sulphur: .040 % .033 -- Phosphorus: .035 % .030 .035 Remarks, etc. This is a fairly representative analysis for C.N.S. we were using 6 months ago for con rod forgings. Signature: H.C.S. | ||