Diehl Brass Solutions

SETTING STANDARDS FOR INNOVATIVE & SUSTAINABLE ALLOYS

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DIEHL BRASS SOLUTIONS – SEMI-FINISHED PRODUCTS IN PERFECTION

At Diehl Brass Solutions, our core expertise lies in the independent production of high-quality copper alloys – from our own foundry to precise further processing. Thanks to our fully integrated manufacturing processes – casting, extrusion, and drawing – we produce semi-finished brass and copper products with exceptional material quality and dimensional accuracy, meeting the highest standards across a wide range of industries.

Our product portfolio includes more than 60 specialized copper alloys, featuring innovative lead-free and low-lead materials specifically developed for drinking water applications. Among these are our high-performance alloys eZeebrass and Cuphin, setting new benchmarks in sustainability, safety, and efficiency.

We offer a broad range of semi-finished products – from rods and tubes to customized profiles, manufactured using the latest state-of-the-art technology and in compliance with the highest quality standards. Our alloys are characterized by outstanding corrosion resistance, excellent formability, and optimal machinability, making them ideal for demanding applications in the sanitary, automotive, mechanical engineering, and other industrial sectors.

  • 563

    Employees

  • 367 million €

    Sales per year (in 2024)

  • 150.000 tonnes

    Capacity per year

  • 90 %

    Metals used from secondary material

Core competencies

  • GLOBAL LEADER IN SPECIAL BRASS
  • EUROPE’S LEADING MANUFACTURER OF BRASS RODS, TUBES, AND PROFILES
  • GERMANY’S LARGEST PRODUCTION SITE FOR SEMI-FINISHED BRASS PRODUCTS

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Manufacturing

Diehl Brass Solutions produces brass semi-finished products using state-of-the-art, fully automated production equipment. In addition, we employ custom-developed and in-house-built tools and machinery to ensure the highest precision and quality.

Casting of alloys

The materials used for brass production are added to the melting furnace either as scrap metal or as high-purity primary metal. Precise composition and dosing of these raw materials ensure consistently high alloy quality, forming the foundation for semi-finished products with optimal mechanical properties and excellent dimensional accuracy.

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Extrusion of Brass Rods

Rod extrusion is a forming process used to manufacture rods, tubes, and profiles from metallic materials, ensuring precise dimensions and excellent surface quality.

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Drawing of Brass Rods

Draw benches are used for the further processing of coiled extruded rods. During cold forming, both the mechanical properties and the tight dimensional tolerances are precisely adjusted, resulting in high-quality semi-finished products with excellent accuracy.

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Logistics Process

The logistics center features a high-bay warehouse designed for the storage and handling of brass semi-finished products. Integrated material handling systems ensure efficient organization, transport, and delivery throughout the entire production and supply chain.

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Explore semi-finished product manufacturing

Development & Engineering

Tool and Mould Making

At Diehl Werkzeugbau Seebach, we design and manufacture die tools as well as extrusion and drawing dies for semi-finished product production – from CAD design to the finished tool, all completely in-house.

This close integration of design and manufacturing enables rapid tool production, short-term modifications, and optimal tool performance. In addition to new tool production, we also offer modifications, repairs, and contract work.

Our continuous investments in machinery and processes ensure precision, flexibility, and long tool life – advantages that have been valued by customers within and beyond the Diehl Group for many years.

More information about Toolmaking at Diehl Metall

Laboratory and Material Testing

The quality and durability of our semi-finished products are defined by the materials used, the precise geometric design, and the optimized interaction of all processing steps – from casting to extrusion and drawing.

To ensure the highest quality standards, we employ state-of-the-art testing technologies, including eddy current and ultrasonic inspection systems, as well as geometry control systems utilizing laser and camera technology.

More information about Quality standards at Diehl Metall

Metal Management and Recycling

Copper is an exceptionally sustainable material – infinitely recyclable without any loss of quality. At Diehl Brass Solutions, around 90% of the metals used come from secondary raw materials. Even chips and scrap from our customers are completely reintegrated into the production cycle.

Through this closed-loop approach, we help conserve valuable natural resources and reduce energy consumption by up to 85% compared to primary metal production from mining.

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Decarbonization

As an industrial company, we take responsibility in the fight against climate change. Every year, we measure the carbon footprint of all our production sites according to the Greenhouse Gas Protocol (Scopes 1–3) to make emission sources transparent and reduce them systematically.

For Scopes 1 and 2, we have set science-based targets aligned with the Science Based Targets Initiative, aiming for CO₂-neutral production by 2030. Through projects such as “DBS goes green”, we focus on energy efficiency, sustainable energy sourcing, and self-generated electricity, ensuring our production is fit for a sustainable future.

Explore our efforts for sustainability at Diehl Metall

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