Types and differences between steels – OL 37 and OL 52
In order to correctly execute a construction, it is necessary to know the types and the differences between the steels. In metal constructions, steels are classified according to the steel brand (tensile strength). The most frequently used steels, in Romania, for the realization of metal constructions are the following: OL 37, OL 44, OL 52. […]
Brands and grades of construction steel
For those who are not very familiar with all the technical details in the field of construction steels, the following question arises: „How do we correctly interpret the notation of some brands and classes of steel defined in letters and numbers?” The quality standards of construction steels according to EN 10025-2/2004 are the following: S185 […]
The standard for rolled steels EN 10025 – 2
The standard for hot-rolled steels is EN 10025-2 and specifies the technical delivery conditions for non-alloy construction steels. EN 10025 – 2 applies to hot-rolled construction steel products. The SR national standard EN 10025:2:2004/AC:2005 is identical to the European standard EN 10025:2:2004/AC:2005. Regarding the name and nomenclature of rolled steels for construction. Reference should be […]
Categories of corrugated sheet and the differences between them
H Metal supplies different categories of corrugated board – steel – galvanized – stainless steel – aluminum. MECHANICAL RESISTANCE In terms of resistance to mechanical stress, stainless steel sheet behaves best. The next plate with good mechanical resistance is corrugated steel sheet or galvanized corrugated sheet, both of which are based on simple or hot-dip […]
The return of steel
Steel tempering is a final heat treatment that is always applied after hardening. It consists of heating the hardened steel to a temperature below the critical point AC₁, maintaining and cooling generally in the air. Heating temperatures are very different depending on the type of steel. There are 4 basic types of heat treatment of […]
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