" Wrought iron is a very pure form of commercial iron, having a very small carbon content. It is tough, malleable, and ductile and can be easily welded. However, it is too soft to make blades from; steel, with a carbon content between wrought and the high-carbon brittle cast iron, is used for that. Wrought iron has been used for thousands of years, and represents the " iron" that is referred to throughout history" .