un po' più di contesto.. 07:55 Dec 1, 2011
Wrought iron has a very low carbon content and very few contaminants. It can have a visible grain, produced by forging or rolling (page 114) the iron and slag together in the production process. It is soft, ductile and has been replaced by carbon steel for most applications due to its inferior strength. Cast iron is made up of iron, carbon and small amounts of silicon. There are different types, including grey, white, ductile and malleable. They are differentiated by the formation of carbon in the iron matrix and alloying elements. Generally, cast iron has good dampening properties and machinability, is resistant to fatigue and corrosion and is difficult to weld due to the high carbon content |