Stainless Steels Grades
(58 votes)Ferritic grades: Ferritic stainless steels are magnetic non heat-treatable steels that contain chromium but not nickel. They have good heat and corrosion resistance, in particular sea water, and good resistance to stress-corrosion cracking. Their mechanical properties are not as strong as the austenitic grades, however they have better decorative appeal.
Martensitic grades: Martensitic grades are magnetic and can be heat-treated by quenching or tempering. They contain chromium but usually contain no nickel, except for 2 grades. Martensitic steels are not as corrosive resistant as austenitic or ferritic grades, but their hardness levels are among the highest of the all the stainless steels.
Austenitic grades: Austenitic stainless steels are non-magnetic non heat-treatable steels that are usually annealed and cold worked. Some austenitic steels tend to become slightly magnetic after cold working. Austenitic steels have excellent corrosion and heat resistance with good mechanical properties over a wide range of temperatures. There are two subclasses of austenitic stainless steels: chromium-nickel and chromium-manganese-low nickel steels. Chromium-nickel steels are the most general widely used steels and are also known as 18-8(Cr-Ni) steels. The chromium nickel ratio can be modified to improve formability; carbon content can be reduced to improve intergranular corrosion resistance. Molybdenum can be added to improve corrosion resistance; additionally the Cr-Ni content can be increased.
Stainless steel differs from carbon steel by the amount of chromium present. There are over 150 grades of stainless steel, of which fifteen are most commonly used.
http://en.wikipedia.org/wiki/Stainless_steel
Stainless Steel – Grade 304
Typical compositional ranges for grade 304 stainless steels are given in table 1. Approximate grade comparisons for 304 stainless steels are given in table 4.
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SAE steel grades – Wikipedia, the free encyclopedia
The Society of Automotive Engineers (SAE) designates SAE steel grades. It is also known as marine grade stainless steel due to its increased resistance to
http://en.wikipedia.org/wiki/SAE_steel_grades
Stainless Steel Grades | Mid America Stainless, LLC
Stainless Steel Grades. Stainless steels are engineering materials with good corrosion resistance, strength, and fabrication characteristics.
http://www.mastainless.com/grades/index.html
National Supply Source – Stainless Steel Data
Information on all standard grades of stainless steel including composition and application data.
http://www.nolansupply.com/stainlessgrades.htm
Stainless Steel – Grade 316 – Properties, Fabrication and
The 316 family is a group of austenitic stainless steels with superior corrosion resistance to 304 stainless steels. They also have excellent toughness and can be
http://www.azom.com/details.asp?ArticleID=863
Stainless Steel Comparator
Austenitic stainless steels are the most specified grades produced Alloys Make the Grade. The manufacture of quality stainless steel, from heat to heat and
http://www.aksteel.com/pdf/markets_products/stainless/Stainless_Steel_Comparator.pdf
