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1. Physical characteristics
1.1 Color
The color of steels can vary according to their chemical composition and heat treatment. Carbon steels may have a gray or dark blue color due to the presence of carbon, while stainless steels generally have a silver color due to the presence of chromium and nickel.
The color of steels can also be affected by heat treatment operations, such as annealing, which can give a reddish or blue color. However, it is not a reliable indicator of physical properties such as density, melting point, thermal or electrical conductivity. These properties must be determined by specific tests for each steel.
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Physical characteristics
Chemical characteristics
Bibliography
Standards and norms
NF EN 1090, which defines the requirements for the manufacture, inspection and certification of steel and aluminum products used in construction.
NF A 35-016, which defines the requirements for steels used in steel construction.
NF EN 1993-1-1, which defines the requirements for the design and calculation of steel structures.
NF EN 10025, which...
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 highly corrosion-resistant steel 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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