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 tappet spring made from Chrome Vanadium Steel.
| Identifier | ExFiles\Box 66a\2\ scan0009 | |
| Date | 7th January 1926 | |
| X6060 Hs.{Lord Ernest Hives - Chair} H13/EA7.1.26. Laboratory. Report No.L308. Re Tappet Spring submitted 7.1.26. This is made in Chrome Vanadium Steel. The analysis is as follows :- Carbon -------- 0.45 % Manganese ---- 0.70 % Chromium ----- 1.16 % Vanadium ----- 0.30 % The Vanadium is on the high side, but this is no disadvantage. Hl. | ||