Yorkshire and the Humber
Stainless steel was invented in 1913 by Harry Brearley of Sheffield, working for Firth Brown Steels (now called Sheffield Forgemasters). SAE 304 stainless steel is the most common stainless steel today, invented by Dr William Herbert Hatfield FRS in 1924 at Firth-Vickers known as Staybrite 18/8, a chromium-nickel steel. Many Swiss watches were mostly made out of Staybrite.
Bal Raj Nijhawan
Nijhawan is one of the pioneers of engineering metallurgy in India and has done extensive research in the subject. He was one of the first Indian scientists to do advanced research on defence related technologies such as armour plate technology, armour failures and control of austenitic grain size of steels. He is credited with the development of nickel-free austenitic stainless steels from Cr, Mn, and N systems and indigenous raw materials. He led a research and development project on low-shaft ironmaking/steelmaking technologies which are in popular use the world over. He was also reported to have developed "several substitute families of ferrous and non-ferrous alloys". His researches have been documented by way of a book, a monograph, several edited works and over 500 technical publications and he held over 55 patents for his researches.