NOTWITHSTANDING its extraordinary importance, the discovery of the 13 per cent, manganese steel, made by Sir Robert Hadfield more than forty years ago, has scarcely been elucidated regarding its most striking point, namely, the extremely high resistance to wear and tear, or the fact that the non-magnetic manganese steel, while comparatively soft in itself, offers an enormous resistance to a working tool.
C. Benedicks, "Hadfield's undersökningar över specialstål", Teknisk Tidskrift, Bergsvet, 1923, p. 25.
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BENEDICKS, C. On the Hardness of Manganese Steel. Nature 115, 230 (1925). https://doi.org/10.1038/115230a0