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'''Stainless Steel''' is a type of alloy that combines [[iron]] with other [[element]]s, such as [[chromium]], [[nickel]], and [[molybdenum]]. It is known and used for its ability to resist [[oxidation]]. There are hundreds, if not thousands, of grades of stainless steel. Some of the more common grades are:
'''Stainless steel''' is a type of alloy that combines [[iron]] with other [[element]]s, such as [[chromium]], [[nickel]], and [[molybdenum]]. It is known for and used for its ability to resist [[oxidation]]. There are hundreds, if not thousands, of grades of stainless steel. Some of the more common grades are:
*304 Stainless - Very common alloy used in utensils and many household items. Generally, 304 stainless will contain 7-9% nickel, 18-20% chromium, up to 2% [[manganese]], and the balance of the material is iron (minus the impurities that turn up through use of cantaminated scrap metals and additions while melting).
*304 Stainless - Very common alloy used in utensils and many household items. Generally, 304 stainless will contain 7-9% nickel, 18-20% chromium, and up to 2% [[manganese]], and the balance of the material is iron.
*316 Stainless - Also a common alloy. 316 stainless contains 9-11% nickel, 15-17% chromium, up to 2% manganese, and up to 2% molybdenum.
*316 Stainless - Also a common alloy, similar in use to 304 Stainless. 316 stainless contains 9-11% nickel, 15-17% chromium, up to 2% manganese, and up to 2% molybdenum.
*400 Series Chrome Steel - Contains various grades of stainless steel (410, 430, etc) that generally contain little to no nickel and varying amounts of chromium.
*400 Series Chrome Steel - Contains various grades of stainless steel (410, 430, etc) that generally contain little to no nickel and varying amounts of chromium, upwards of 27%.
*17-4 PH - Contains 4% nickel, 17% chromium, and 3-4% copper. This alloy is used in the aircraft industry.
==Elements Generally Contained in Stainless Steel Alloys==
*[[Nickel]]
*[[Chromium]]
*[[Iron]]
*[[Manganese]] (usually no higher than 2%)
*[[Carbon]] (usually no higher than 0.5%)
*[[Silicon]] (usually no higher than 1%)
There is usually a trace amount of [[phosphorus]], [[sulfur]], and [[boron]] found in stainless alloys due to contaminants in the scrap metal or additives used in the melting process.
==Elements Found in Few Stainless Steel Alloys==
*[[Cobalt]]
*[[Copper]]
*[[Vanadium]]
*[[Tungsten]]
*[[Molybdenum]]
*[[Zirconium]]
*[[Nitrogen]] (trace)
*[[Aluminum]]
*[[Titanium]]
*[[Niobium]]
*[[Tantalum]]
*[[Yttrium]] (usually found as an oxide, Y<sub>2</sub>O<sub>3</sub>)
==Elements Usually Considered Contaminants==
*[[Tin]]
*[[Lead]]
*[[Zinc]]
*[[Arsenic]]
[[Category:Alloys]]
[[Category:Alloys]]