Bureau of Indian Standard (BIS) Code for Designation of Steel | Metallurgy
According’s to Bureau of Indian Standards, steels can be designated either based on letter symbols {IS: 1962 (Part I)—1974} or based on numerals {IS: 1962 (Part II)}. Minimum number of symbols is recommended to be used in designating any steel. Under letter symbols of designating carbon and low alloy steels could be designated on the basis of: (a) Mechanical properties, [...]