Development of new materials as a guarantee for innovation

Dr. Werner Röhrs KG meets the increasing demands of the markets

Because of the increasing demands for high-precision spring elements and the increasing demands of customers concerning lifetime, operational safety and corrosional resistance of the component a continuous development of the employed materials is an essential part of the research for an innovative company. 

With the development of our new material "Röhrs Erco 1812" we satisfy the increasing demands within the market.
 
As a specialist for the manufacture of highly stressed springs, Dr. Werner Röhrs KG is offering the customers a new material which combines good proccessibility - especially concerning the transformation into profiled wires for flat wire springs and helical disk springs - with high spring force and excellent corrosion resistance.
 
The new spring wire ERCO 1812 is a consequent development of the related material ERCO 1707S, which is suitable for the manufacture of especially flat profiles and very close distance between coils. The relaxation behavior can be minimized and the corrosion resistance and the dynamic properties can be improved at the same time.
 
The material is seawater resistant and insensitive to chlorids which often occur in field use. Chlorids can cause pitting corrosion and therefore reduce lifetime of highly stressed springs.
 
Switching over to the new material ERCO 1812 a Japanese manufacturer of metal cutting machine tools could double lifetime and minimize the relaxation within the same construction space.
 
For a German manufacturer of defense engineering the new material still could be used for flat wire springs with high dynamic loads. Besides high strength and hardness this new development satisfied with its resistance to seawater which was a central customer demand. 

Currently the engineers of Dr. Werner Röhrs KG are working on the optimization of a flat wire spring with a distance between coils of 2.35 and a block stress of 1600 N/mm². With the series introduction of this spring which has extraordinary attributes for a spring made from stainless steel, Dr. Werner Röhrs KG will soon come up with a new highlight.