Français
3. Ferritic stainless steels
3.1 Composition and properties
Ferritic steels contain from 10 to 30% chromium (table 5 ), with reduced carbon and nitrogen content (extremely low in the case of purely ferritic and high-alloy ferritic steels).
They can contain additions such as :
molybdenum to improve their corrosion resistance;
titanium or niobium to trap carbon and improve the properties of welded joints.
Purely ferritic steels have no transformation point and are therefore very sensitive to grain coarsening above 800 ˚C. It is impossible to regenerate their structure by heat treatment....
The Ultimate Scientific and Technical Reference
This article is included in
Hydraulic, aerodynamic and thermal machines
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Ferritic stainless steels
Austenitic-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,...
The Ultimate Scientific and Technical Reference
