Harry Brearley
Harry Brearley (18 February 1871 – 14 July 1948) was an English metallurgist, usually credited with the invention of "rustless steel" (later to be called "stainless steel" in the anglophone world).
William Herbert Hatfield
Dr William Herbert Hatfield FRS (10 April 1882 – 16 October 1943) was an English metallurgist who contributed to the development of stainless steel.