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Do you know how much iron(%)is in steel products?
Steels vary in their composition. They only have to have iron and carbon in them to qualify as steels, and the fraction of carbon (less than 1.7% by weight) is small. But some steels have larger quantities of other ingredients. Most steels have no more than a few percent of additional ingredients alloyed in: manganese, vanadium, molybdenum, chromium, nickel, tungsten an cobalt are common.
Stainless steel is a notable exception. According to Wikipedia, stainless steels have at least 10% of chromium in the mixture, usually with some nickel too. Stainless steels also have rather different properties from those of other steels -- they do not corrode, are poor magnets, and also poor heat conductors.
(published on 10/22/2007)
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