2. Standard designation for structural steel
All structural steels are :
symbolically designated on the basis of their use and mechanical characteristics according to the principles defined in standard NF EN 10027-1 ;
numbered according to the system described in standard NF EN 10027-2.
2.1 Standardized symbolic designation
The symbolic designation begins with the letter S followed by a whole number equal to the minimum value of the guaranteed yield strength for the lowest thickness range. This set may be followed by additional symbols which may be successively :
-
a letter defining the structural state for fine-grained steels:
N...
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Standard designation for structural steel
Application performance of structural steels
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