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Monday, June 23, 2008
Stainless Steels
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CHEMICAL COMPOSITION OF STAINLESS STEELS
SS 304
Chemistry Data
Carbon
0.08 max
Chromium
18 - 20
Iron
Balance
Manganese
2 max
Nickel
8 - 10.5
Phosphorus
0.045 max
Silicon
1 max
Sulphur
0.03 max
Source: http://www.rksteels.com/SS304.htm
SS 316
Chemistry Data
Carbon
0.08 max
Chromium
16 - 18
Iron
Balance
Manganese
2 max
Molybdenum
2 - 3
Nickel
10 - 14
Phosphorus
0.045 max
Silicon
1 max
Sulphur
0.03 max
Source: http://www.rksteels.com/SS316.htm
Complete source for all SS compositions:
http://www.rksteels.com/technicaldata.htm
CHEMICAL COMPOSITION OF STAINLESS STEELS
SS 304
Chemistry Data
Carbon
0.08 max
Chromium
18 - 20
Iron
Balance
Manganese
2 max
Nickel
8 - 10.5
Phosphorus
0.045 max
Silicon
1 max
Sulphur
0.03 max
Source: http://www.rksteels.com/SS304.htm
SS 316
Chemistry Data
Carbon
0.08 max
Chromium
16 - 18
Iron
Balance
Manganese
2 max
Molybdenum
2 - 3
Nickel
10 - 14
Phosphorus
0.045 max
Silicon
1 max
Sulphur
0.03 max
Source: http://www.rksteels.com/SS316.htm
Complete source for all SS compositions:
http://www.rksteels.com/technicaldata.htm
Alloys
Steel is a metal alloy whose major component is iron, with carbon content between 0.02% and 1.7% by mass.
This article is about the material. For the specification language, see Alloy (specification language).
An alloy is a solid solution or homogeneous mixture of two or more elements, at least one of which is a metal, which itself has metallic properties. It usually has different properties from those of its component elements.
Alloying one metal with others often enhances its properties. For instance, steel is stronger than iron, its primary element. The physical properties, such as density, reactivity, Young's modulus, and electrical and thermal conductivity, of an alloy may not differ greatly from those of its elements, but engineering properties, such as tensile strength[1] and shear strength may be substantially different from those of the constituent materials. This is sometimes due to the sizes of the atoms in the alloy, since larger atoms exert a compressive force on neighboring atoms, and smaller atoms exert a tensile force on their neighbors, helping the alloy resist deformation. Alloys may exhibit marked differences in behavior even when small amounts of one element occur. For example, impurities in semi-conducting ferromagnetic alloys lead to different properties, as first predicted by White, Hogan, Suhl, Tian Abrie and Nakamura.[2][3] Some alloys are made by melting and mixing two or more metals. Brass is an alloy made from copper and zinc. Bronze, used for statues, ornaments and church bells, is an alloy of tin and copper.
Unlike pure metals, most alloys do not have a single melting point. Instead, they have a melting range in which the material is a mixture of solid and liquid phases. The temperature at which melting begins is called the solidus and the temperature when melting is complete is called the liquidus. However, for most alloys there is a particular proportion of constituents which give them a single melting point or (rarely) two. This is called the alloy's eutectic mixture.
Contents
1 Classification
2 Terminology
3 See also
4 References
5 External links
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Metals & Alloys info
Find information about the chemistry of metals and alloys, including compositions, mechanical properties, reactions, chemical properties, uses, and mining.
Metal QuizTest your knowledge of the metals with this ten question quiz. Links about different metals are provided to help you find the answers.
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Metal QuizTest your knowledge of the metals with this ten question quiz. Links about different metals are provided to help you find the answers.
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