<Ul> <Li> Cast iron </Li> <Li> Gray iron </Li> <Li> White iron </Li> <Li> Ductile iron </Li> <Li> Malleable iron </Li> <Li> Wrought iron </Li> </Ul> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties . Alloy steels are broken down arbitrarily: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0% . Most commonly, the phrase "alloy steel" refers to low - alloy steels . </P>

Difference between low alloy steel and high alloy steel pdf