YOUR EXPERT PARTNER FOR STEEL

WE DO EXCELLENCE.

WE STAND FOR EXCELLENCE

 
As a traditional company with a strong customer focus and social responsibility, we have been tackling a wide range of challenges for the past 160 years. Whether it's a question of sustainability, resource efficiency, reducing CO2 emissions or avoiding waste, our Doerrenberg developments are always one step ahead. This enables us not only to always have access to the latest processes, but also to ensure that individual customer requests and special requirements are met to the highest quality. We rely on highly qualified specialists, the latest technologies and university projects as well as innovation competitions. Our range of services includes all common measuring techniques as well as fully individualized quality controls. 

INNOVATION

WE DO INNOVATION.

TECHNICAL EXPERTISE FROM TRADITION

 
Since the company was founded, technical expertise and the further development of established materials and processes have been a hallmark of Doerrenberg. The introduction of new processes for steel melting, the establishment of wear-resistant hard coatings and the market launch of then new tool steels with secondary hardness are three examples of technical milestones in the company's history.   

WE DO SPECIAL MATERIALS. 

SPECIAL MATERIALS  

Standard materials often reach their limits in complex applications. For this reason, we have a large number of special materials in our range to offer our customers a suitable solution here too. Materials such as the hot-work tool steel WP7V, the cold-work tool steels CPOH, CPR or CP72 or our powder metallurgical tool steel variants have proven themselves in many applications. 

WE DO MATERIAL DEVELOPMENT.

MATERIAL OPTIMIZATION


Special requirements may mean that materials need to be optimized or newly developed. Our Doerrenberg steels GP4M® and CP4M®, for example, have good weldability with high hardenability, while the steel materials CP2M® and GP2M® have increased thermal conductivity with good through-hardenability.

WE DO SPECIAL PROCESSES. 

SPECIAL PROCESSES


Improving material properties, sustainability, resource efficiency, reducing CO2 emissions and avoiding waste are important factors that have always led to special production processes at Doerrenberg. In the Steel Mill division, for example, the plasma ladle furnace, in the Steel Foundry division the corundum-based standard sand system and the additive manufacturing of sand molds should be mentioned here. The Coating and Hardening division boasts a multi-frequency induction hardening system and the NOX® and hybrid PVD processes based on plasma nitriding.

WE DO PROCESS DEVELOPMENT.

PROCESS DEVELOPMENT


Patented innovation: Our latest patent applications cover tool steels for additive manufacturing, the insertion of cooling channels in cooled tools and the surface hardening of coated tools. 

WE DO PRODUCT DEVELOPMENT. 

SPECIAL PRODUCTS


Special customer requirements or product ideas are not an obstacle for us, but a challenge. Together with our customers, we have already developed many successful products. Cast products made from additively manufactured sand forms or hybrid products manufactured in composite construction, paired with a special heat or surface treatment are examples of innovative products according to customer requirements. 

FORSCHUNG UND ENTWICKLUNG

WE DO RESEARCH & DEVELOPMENT.

THE TECHNOLOGY OF TOMORROW 

 
Research & development is the basis for the technical success of tomorrow. We invest in new and further development of products, processes and ideas. We receive scientific support through cooperation with universities, associations and research institutions. 

WE DO SCIENTIFIC COOPERATION. 

UNIVERSITY EXPERTISE

Active cooperation with universities leads to an exchange of scientific ideas. New research ideas, coupled with Doerrenberg's practical industrial experience, make all partners involved winners. In addition to publicly funded projects, we work together very successfully in bilateral collaborations. 

WE DO YOUNG TALENT PROMOTION. 

PROMOTING YOUNG TALENT

In order to actively counteract the shortage of skilled workers, we have been promoting young talent for many years through our own apprenticeships and internships. The Doerrenberg StudienAWARD has also become an established award. The prize is awarded to young students who are able to apply with the thesis they have written during their studies. 

 

WE DO KNOWLEDGE TRANSFER. 

KNOWLEDGE TRANSFER

We share our knowledge and experience. We offer training seminars, give specialist presentations in the industry and lectures at universities, attend international conferences and write publications. 

QUALITY ASSURANCE

WE DO QUALITY ASSURANCE.

QUALITY ASSURANCE


Reproducible processes and products are not created automatically. Quality is the result of individual work steps and part of the awareness of each individual employee. We use specific measuring methods, work according to a certified quality management system and train our employees to the latest standards. Because good products can only be created if all components of a process chain are self-evident.  

WE DO QUALITY CONTROL. 

MEASUREMENT METHODS 

The basis of a systematic analysis for the continuous improvement of our products and production processes as well as targeted further development is the qualitative and quantitative determination of all relevant facts and parameters. For this purpose, we have all the usual test methods and trained specialist personnel in-house. Measuring equipment monitoring and test supervision are carried out by our independent service departments. 

WE DO QUALITY MANAGEMENT.

QUALITY MANAGEMENT

A practiced quality management system in accordance with DIN EN ISO 9001 is an expression of our quality standards. A high level of customer satisfaction, respectful interaction and compliance with standards and legal requirements are the basis for long-term business relationships. 

WE DO APPROVAL CERTIFICATION. 

SPECIAL APPROVALS

We manufacture sophisticated products that are often subject to special approvals. As a material manufacturer, we are certified in accordance with AD 2000 W0 for pressure equipment (Directive 2014/68/EU Annex I) and as a specialist welding company in accordance with DIN EN ISO 3834-2 with independent welding supervision.