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2. Martensitic stainless steels
2.1 Composition and properties
Martensitic stainless steels have a chromium content of around 12% and a variable carbon content, which determines their hardenability (tables 2 and 3 ). Steels with a relatively low carbon content are mainly used in boiler making. Indeed, the increased brittleness of steels with carbon content above 0.2% significantly increases the level of care required when cutting, forming and welding these steels.
Because of their chromium content (11-16%), "air quenching" is sufficient to obtain the desired mechanical properties, while limiting the risk of tapping during cooling. In a temperature range between 800 and...
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Martensitic stainless steels
Ferritic 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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