There are about 100 alloys in the Elektron range, containing from 0% to 9.5% of some of the following elements in varying proportions: aluminium (< 9.5%), yttrium (5.25%), neodymium (2.7%), silver (2.5%), gadolinium (1.3%), zinc (0.9%), zirconium (0.6%), manganese (0.5%) and other rare-earth metals.
Elektron or Elektronmetall was first developed in 1908 by Gustav Pistor and Wilhelm Moschel at the Bitterfeld works of Chemische Fabrik Griesheim-Elektron (CFGE or CFG), the headquarters of which was in Griesheim am Main, Germany.
At its pavilion at the International Aviation Fair (Internationale Luftschiffahrt-Ausstellung, ILA) in Frankfurt am Main in 1909, CFG exhibited an Adler 75HP engine with a cast magnesium alloy crankcase.
[7] CFG merged fully with the IG Farben conglomerate in 1925 along with Versuchsbau Hellmuth Hirth (a copper alloy manufacturer), to form another company, Elektronmetall Bad Cannstatt Stuttgart.
[12] British and German incendiary bombs used extensively during World War II weighed about 1 kg and consisted of an outer casing made of elektron alloy, which was filled with thermite pellets and fitted with a fuse.
[13] In 1924, magnesium alloys (AZ; 2,5–3,0% Al; 3,0–4,0% Zn) were used in automobile pistons diecast by Elektronmetall Bad Cannstatt, another IG Farben company formed out of Versuchsbau Hellmuth Hirth.