In 2002, Wilhelm Modersohn became aware of the SAF2304 (1.4362) material through Avesta in Sweden. In 2003 Modersohn introduced the first Lean Duplex steel for system products in the German market for fastening systems.
As an independent representative of fastening systems from the company Lutz from Wertheim, Wilhelm Modersohn sen. had recognised early on that there was a great demand in the market for fastenings in the area of masonry facades. In March 1970, he and two employees founded the company, which today has over 140 employees.
Increases hardness, tensile strength, brittleness, from 0.2% (or 0.3%, depending on the literature source) steel is hardenable, from 0.45% a knife blade remains sharp, reduces corrosion resistance and weldability.
The composite mortar systems as a collective term correspond to the composite anchor systems and stand for many variants of adhesive or mortar anchors, which are characterised by stress-free anchoring in concrete or masonry in the drill hole.
This term indicates that components are protected from the environmental conditions acting on them by means of coatings (organic layers, e.g. lacquer, powder coating) and / or overlays (inorganic layers, e.g. galvanising, chromating, enamelling).