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![Bild Logo Duplex Rostfrei]( "Logo Lean Duplex-Stahl")
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.
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![Bild Unternehmen Navigation]( "Ideogramm Modersohn Stainless Steel")
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.
Stainless steel our passion & competence
Stainless steel our passion & competence
Our Materials
Stainless steel - our common materials
1.4301 | 1.4362 | 1.4404 | 1.4571 | 1.4062 | 1.4162 | 1.4462
Essential alloy components and properties
Ti (titanium), N (niobium)
Improves the weldability
C (carbon)
Increases hardness, tensile strength, brittleness, from 0.3% steel is hardenable, lowers Corrosion resistance and weldability
Cr (chrome)
Most important component of stainless steels, increases Corrosion resistance and wear resistance
Ni (nickel)
Increases toughness, from 8% Corrosion resistance, austenite former
Cu (copper)
Increases the toughness
Mn (manganese)
Increases tensile strength, austenite former
Mo (molybdenum)
Increases Corrosion resistance, deteriorates toughness, lowers temperature resistance during the sigma phase in duplex steel
N (nitrogen)
Increases tensile strength and Corrosion resistance
Si (silicon)
Improves scale resistance and, at higher contents, Corrosion resistance, e.g. with highly concentrated nitric acid
P (phosphorus), S (sulphur)
Improves machinability, deteriorates weldability and Corrosion resistance