Français
1. Origin and history
1.1 In the beginning was iron
The first appearance of steel in its most primitive form dates back to the Iron Age, between 1200 and 600 B.C., among the Hittites and Chalybes, peoples of Asia Minor (Caucasus). However, it's important to note that these peoples didn't produce steel as we know it today, but rather an impure metal known as "fire iron".
They produced this iron by digging a hole in the ground, covering it with stones and layers of clay. They then added charcoal, which they lit, and piled up in alternating layers of iron ore and charcoal. This ore, or iron oxide, then took the form of small rocks that they collected from the surface of the ground. The temperature obtained in these holes was relatively low due to the absence of effective blowing....
The Ultimate Scientific and Technical Reference
This article is included in
The building envelope
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
Origin and history
Steelmaking
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...
The Ultimate Scientific and Technical Reference
