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).
Test report on the tensile strength of various steels at high temperatures.
| Identifier | ExFiles\Box 76\3\ scan0033 | |
| Date | 21th February 1918 | |
| To Mr. Royce and Mr. Hives. Various steel tested in Tensile at high temperatures. F.A.S. = Firth's Stainless Steel. Q = Brown Bayley's Quick-Step.S. K.9. = Air Board Nickle Chrome S. M.S. = Mild Steel (Simpsons) C.V.S. = Firth's Chrome Vanadium S. N.S. = 3½% Nickle S. N.C.S. = Firth's Nickle Chrome S. High Speed. A.W. Tungsten Valve Steel. Bar No. | Temp: | M.S. | Y.P. | E.{Mr Elliott - Chief Engineer} | R.A. | Relative tendency to scaling. ---|---|---|---|---|---|--- F.A.S. | 600°C | 18.6 | 16.4 | 35.6 | 80.4 | Very Good. F.A.S. | 750°C | 7.6 | 5.2 | 67.8 | 96.8 | Good. Q | 600°C | 24.0 | 19.2 | 38.8 | 91.7 | Very Good. Q | 750°C | 7.6 | 5.0 | 71.1 | 97.66 | Very Good. K.9 | 600°C | 20.0 | 16.6 | 37.1 | 87.6 | Fair. K.9 | 750°C | 6.60 | 4.6 | 66.7 | 96.4 | Very Bad. M.S | 600°C | 15.0 | 11.8 | 46.2 | 88.1 | M.S. | 750°C | 5.2 | 4.4 | 68.4 | 93.8 | Very Bad. C.V.S. | 600°C | 20.6 | 18.2 | 35.2 | 89.7 | Fair. C.V.S. | 750°C | 6.9 | 5.0 | 64.2 | 96.2 | Bad. N.S. | 600°C | 15.0 | 12.0 | 40.5 | 86.8 | N.S. | 750°C | 5.6 | 3.4 | 63.4 | 92.0 | Very Bad. N.C.S. | 600°C | 19.8 | 16.8 | 36.0 | 86.8 | Fair. N.C.S. | 750°C | 6.4 | 4.6 | 65.2 | 96.0 | Very Bad. A.W. | 600°C | A.W. | 750°C | 8.4 | 5.9 | 40.0 | 78.6 | Fair. R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. | ||