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1. Classification of stainless steels
1.1 The basics
Stainless steels owe their resistance to corrosion to the formation, under their conditions of use, of a very thin passive layer (a few nanometers) made up of chromium compounds with a complex structure. The judicious choice of a stainless steel for a given application is designed to ensure that the chosen steel remains in this "passive" state, characterized by a very low dissolution or corrosion rate (generally less than 0.1 mm per year). These steels contain from 10 to 30% chromium by mass, as well as other elements chosen to improve their resistance to corrosion or their effect on their structure, such as molybdenum, nickel, nitrogen or titanium.
Chromium-alloyed steels also offer good resistance to high-temperature oxidation, thanks to the...
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Classification of stainless steels
Martensitic stainless steels
Bibliography
Basic works
Reference
In Engineering Techniques
On stainless steels
On forming
About welding
Basic works
Standardization
Series of AWS standards (published by AWS).
ASTM series of standards (distributed by ASTM International).
Series of NF EN standards (distributed by AFNOR).
- Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count - ASTM E 562 - 2002
- Standard Practice for Detecting Susceptibility to Intergranular Attack in Austenitic...
Regulations
Directive 97/23/EC of the European Parliament and of the Council of May 29, 1997 on the approximation of the laws of the Member States concerning pressure equipment, known as the Pressure Equipment Directive (PED), OJ L181 of July 9, 1997.
Organizations
UNS numbers (unified numbering system for metals and alloys)
http://www.matweb.com/search/SearchUNS.asp
Center technique des industries mécaniques (Cetim)
Syndicat national de la chaudronnerie,...
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