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).
Letter discussing the use of carbon steel versus chrome vanadium for springs of different sizes.
| Identifier | ExFiles\Box 17\6\ Scan224 | |
| Date | 24th May 1934 | |
| -2- Hs{Lord Ernest Hives - Chair}/Smth.17/KW. 24.5.34. The carbon steel is used for springs of 1/8" dia. and upward and the chrome vanadium for sizes less than this. We have no information regarding the advantages which the makers claim for using the plain steel for the larger diameter springs, and it occurs to us that they can be due only to this steel being easier to manufacture than the other and, possibly, cheaper. We should like to clear up this point, and take the liberty of writing to you on the matter, trusting that you will favour us with your valued opinions. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||