steel -
an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
alloy,
metal a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten; "brass is an alloy of zinc and copper"
alloy steel steel who characteristics are determined by the addition of other elements in addition to carbon
austenitic steel steel that has enough nickel and chromium or manganese to retain austenite at atmospheric temperatures
case-hardened steel steel with a surface that is much harder than the interior metal
carbon steel steel whose characteristics are determined by the amount of carbon it contains
crucible steel steel made by the mixture of molten wrought iron, charcoal, and other substances in a crucible
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten. Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another.
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steel Any of various alloys based on iron containing carbon (usually 0.1-0.7 per cent) and often small quantities of other elements such as phosphorus, sulphur, manganese, chromium, and nickel. Steels exhibit a variety of properties, such as strength, machinability, malleability, etc., depending on their composition and the way they have been treated.
