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4. Conclusion
Traditionally, most ready-to-use general-purpose steels were based on ferrite-perlite metallurgy. This is no longer the case, and we now find more complex structures such as bainitic steels for heavy plate, hardening structures for rails and multiphase structures for thin plate. Microalloyed steels and thermomechanical treatments are also in great demand.
Progress is set to continue in thin, high-strength formable sheet, with the creation of new grades, and in long products, with the development of thermomechanical treatments.
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Conclusion
Glossary
Bibliography
Codes
CODAP is the French pressure vessel code, available from CETIM in Senlis, but there is now a standardized European code in 4 parts:
NF EN 12952 Water-tube boilers ;
NF EN 12953 Fire tube boilers ;
NF EN 13445 Unfired pressure vessels ;
NF EN 13480 Industrial piping.
Standards and norms
- Désignation et classification des nuances d'aciers. - NF EN 10020 - 09-00
- Produits laminés à chaud en aciers de construction. - NF EN 10025 - 03-09
- Produits plats laminés à chaud en acier à haute limite d'élasticité pour formage à froid. - NF EN 10149 - 12-95
- Bandes et tôles laminées à chaud en continu, en acier doux pour emboutissage ou pliage à froid. - NF EN 10111 - 07-98
- Produits sidérurgiques....
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