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 properties chart for Chrome Vanadium steel from Thos. Firth & Sons Ltd.
| Identifier | ExFiles\Box 54\3\ Scan194 | |
| Date | 2nd March 1927 | |
| To accompany ROY{Sir Henry Royce}4/MG/2.3.27 ----------------------- Chart "B" --------- Thos. Firth & Sons Ltd. Steel, Chrome Vanadium Max: strength ........ 93.26 Yield ............... 74.07 Elongation .......... 11.8% on 2 inches Reduction of area ... 31.02 Brinnel number ...... 367. ----- (2.3.27) ENCLOSURE Nº 633 "JUSTSO" | ||