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).
Data sheet for 'Hiduminium' 72 alloy, detailing properties and heat treatment for extruded, drawn, and rolled sections.
| Identifier | ExFiles\Box 116\2\ scan0134 | |
| Date | 22th December 1939 guessed | |
| Data Sheet No. 33 “HIDUMINIUM” 72 Extruded, Drawn and Rolled Sections Only “HIDUMINIUM” 72 Alloy has been developed to meet the demand for an aluminium alloy which, after only one heat treatment, will attain properties superior to Hiduminium Du Brand. The heat treatment of this alloy consists of a suitable soaking period of 500°C. followed by a quench in cold water. Maximum properties are obtained after an aging period of 4/5 days without further heat treatment. It shall be noted, however, that these remarks apply only to the extruded, drawn and rolled forms of this alloy, and that in the forged and stamped conditions its properties, even after heat treatment are only equal to Hiduminium Du Brand or Duralumin. HIGH DUTY ALLOYS LTD. SLOUGH Telephone : SLOUGH 822/3 Telegrams : “ALLOYS, SLOUGH” P.T.O. | ||