Minerals and Metals in Ancient India v1.c11.s7.2

v1.c11.s7.2

At Harappa this use of bronze in place of copper brought one of the revolutionary changes in the metal technology. Copper is ductile and could not resist the heat; bronze being less ductile and considerably stronger and less liable to damage, occupied the position of copper. In this context we may note the opinion of G. Childe, when he says that tin was added to copper not to harden it, but to lower the melting point.