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6. Numeric designation (NF EN 10027-2 standard)
The numerical designation complements the symbolic designation. It is mandatory for steel grades defined in European standards, but optional for national steel grades or branded steels.
6.1 Steel number structure
It is defined :
by a number from 1 to 9 ;
1 for steel ;
2 to 9 for other materials ;
then by a steel group number depending on the type of steel, whether alloyed or not, its quality, analysis or strength;
a serial number (digits in brackets for possible future expansion).
Examples:
S235JR steel is equivalent to 1.0037...
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Numeric designation (NF EN 10027-2 standard)
Conclusion
Bibliography
Standards and norms
- Définit les exigences pour la fabrication, l'inspection et la labellisation des produits en acier et en aluminium utilisés dans la construction. - NF EN 1090 -
- Définit les exigences pour les aciers pour la construction métallique. - NF A 35-016 -
- Définit les exigences pour la conception et le calcul des structures en acier. - NF EN 1993-1-1 -
- Définit les exigences pour les aciers de construction...
Regulations
Law of January 3, 1977 on the quality of construction.
Decree of December 30, 1977 on the approval of construction products.
Patents
Patent FR2868471: "Process for manufacturing a stainless steel with a high nickel content and use of this steel".
Patent FR2796378: "Process for manufacturing a steel with high corrosion resistance and use of this steel".
Patent FR2837167: "Process for manufacturing a high fatigue strength steel and use of this steel".
Patent FR2858573: "Process for manufacturing...
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