Alloy steel

The addition of manganese and other metals to steel improved its durability and hardness, extending its usage, particularly in railroad rails. This development marked the start of advanced alloy steels, which incorporated various metals for further enhancements.
 Robert Abbott Hadfield England 1883 Alloy steel

The addition of manganese and other metals to steel improved its durability and hardness, extending its usage, particularly in railroad rails. This development marked the start of advanced alloy steels, which incorporated various metals for further enhancements.