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 detailing the mechanical test results for a heat-treated S82 steel bar.
| Identifier | ExFiles\Box 142\4\ scan0062 | |
| Date | 28th October 1936 | |
| HHD 1202 To Rm{William Robotham - Chief Engineer}/Smth. Laboratory. S82 Steel - 1-1/8" dia bar. The above sample submitted by you on 28/10/36 was found to be within Specification limits on analysis. Test bars have been carburized and heat treated as below. Carburized 6 hrs. at 890/900°C. Quenched in oil from 830°C. ReQuenched in oil from 760°C. Mechanical Tests. Max. Stress. Y.P. Elong % Izod. Brinell. Tons. ☐" Tons ☐" ft. lbs. 92.1 Indef. 15.0 31.5 415 * Red. Area % 51.5 This sample is satisfactory and up to our standard supply of this type of material. Hl. HR | ||