Earth, air and firE - Tata Group
The making of steel: Earth, air and firE. Tata Review76 April 2013 April 2013 nn Tata Review 77 PHOTOFEATURE F or more than 3,000 years, humans have known how to make tools, weapons and ornaments from iron. Known as a metal of antiquity, iron is one of the building blocks of modern civilisation. Indeed, there was a time when iron was more valuable than gold. The basic process …