Originally Posted by
T-Mar
According to their own literature, Columbus started manufacturing bicycle tubing in 1919. Butted tubesets were introduced in 1930. I haven't seen any literature that specifically mentions when when they started using CrMo. I don't know if they are dancing around the issue or it's just lost in translation.
As for it's use in aircraft, it was not introduced until sometime after the war. During the Great War, most aircraft used wooden frames, with Fokker being the notable exception. They used carbon steels, typically 1010, 1015 and 1018 depending on the year and application.
Junkers also built corrugated metal aircraft with metal frames in the First War (as early as 1915), but I doubt they were Cro Mo or anything like that. I think they were "electrical" steel or the like at first, then switched to duralum.
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Classic American and British Roadsters, Utility Bikes, and Sporting Bikes (1935-1979):
HERE
Last edited by SirMike1983; 03-25-13 at 12:28 PM.