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).
Material analysis report detailing pin dimensions, Brinell hardness readings, and chemical composition.
| Identifier | Morton\M1.7\ img003 | |
| Date | 1st September 1921 | |
| contd:- -2- Hal/LG23, 9.21. ************** Pins. The pins are all 2.510" dia. and about .00025" out of round. We have taken a brinell reading of the webs. This comes out as follows:- No.of web. Brinell. 1 269 2 269 3 302 4 302 5 302 6 285 7 277 8 285. ---------------- Analysis. Carbon, .50 Manganese .54 Chromium .92 Nickel 2.14 Silicon .23 Sulphur .032 Phosphorus .025. ---------------- Hs.{Lord Ernest Hives - Chair} | ||