Mechanical and plant engineering

Efficient lightweight construction, high-performance designs, optimum workability

Mechanical and plant engineering is regarded as the backbone of the German economy – and it is supported by steel

Hardly any other material is as versatile and highly specialized as steel. It can be precisely tailored to customer requirements. Whether related to special hardness or strength, degrees of purity or formability, suitability for welding or corrosion resistance, the diverse properties of steel make it indispensable for mechanical and plant engineering. Our high-quality steel products are used in many applications. These include tool steels for the manufacture of forming tools, shafts and components, die rings and housings.

Megatrend: population growth

Drinking water supply

2.1 billion people worldwide have no access to clean water. To improve this situation, we produce components such as cast steel valves for our customers to transport water in drinking water systems, and cast steel blades for pumps in seawater desalination plants.

Green Steel for mechanical and plant engineering

Low emissions
for a greener future

GMH Gruppe Grüner Stahl Origin Germany

Steel is almost completely recyclable. This alone makes it a sustainable raw material, especially for components subject to wear in mechanical and plant engineering. At the same time, our steels are becoming ever stronger and lighter, making slimmer structures possible. This is how we are helping to conserve resources, reduce energy consumption in production, and cut CO2 emissions.

We are Green Steel

What you can expect

A high level of expertise in tool steel

Our tool steels are used to produce molds for plastic injection molding and die casting machines. They are characterized by key features such as work hardness, tensile strength, machining and wear resistance, corrosion resistance, machinability and polishability – and by the outstandingly high dimensional accuracy of the workpieces produced with them.

A high level of vertical integration, all under one roof

We supply highly machined products for mechanical and plant engineering. These include customer-specific cast cylinder heads, primarily for the industrial engine sector, which are both machined and assembled. We also offer processing options such as drilling, milling, turning, grinding and polishing for many other products.

Materials development for customized solutions

In our Application and Materials Development department, we work closely with our customers to develop increasingly efficient primary materials and ready-to-install components for complex applications.

Our products

Our top products for mechanical and plant engineering

Strip Steel

Strip steel is designed for demanding industrial and tooling applications where precision, consistency and process reliability are essential.

Metal powder and additive manufacturing

Innovative material solutions and processes for the powder metallurgy of the future

Customized Tool Steel

Reliable and innovative material solutions for efficient and consistent production processes.

Steel bars (rolled)

Our steel bars are hot-rolled, round long products, which we manufacture to the highest quality as a pre-material for high-quality end products to ...

Bright steel

Our bright steel is hot-rolled, peeled bar steel with a smooth surface that is as pure as possible, which is manufactured for our customers in ...

Cut Lengths

Precision cut lengths are sawn steel components manufactured to exact dimensions, used as high-quality starting material for demanding applications...

Closed-die forgings

We produce drop forgings with 200 years of experience - from forged blanks to ready-to-install components. Our dimensional spectrum ranges from 5 ...

Contract manufacturing

We are your first point of contact for extensive contract machining options based on our many years of experience and technological expertise.

Piston Rods

Piston rods made of peeled bright steel are critical components in hydraulic cylinders. Within GMH Gruppe, production is carried out from a single s

CNC compo­nents

CNC components are critical for the performance and reliability of mechanical systems, especially in applications requiring tight tolerances, high...

Forged Stainless Steel

Forged stainless steel is used for safety critical components that must withstand high mechanical loads, corrosion and demanding operating...

Steel castings

We produce high-quality cast steel components for well-known customers in the oil and gas, energy, railroad, mechanical engineering and defense ...

Iron castings

We produce high-quality cast iron components for OEMs and suppliers to numerous key industries. Our range of materials includes all grey cast iron ...

Open-die forgings

Our open-die forgings are manufactured by forming high-quality steel. In this process, pre-material produced by ingot casting is precisely formed ...

Seamless rolled rings

We produce seamless rolled rings, flanges and wheel tires to the highest standards. This has made us one of the world's leading manufacturers of ...

Special profiles

We are one of the world's leading manufacturers of hot-rolled special steel profiles. Our products are manufactured to order and further processed ...

Blooms and billets

Continuous casting is a highly efficient process for producing steel blooms and billets in consistent quality and large volumes, making it the...

Cast Ingots

Stahlwerk Bous manufactures order-specific steel cast ingots as semi-finished products for forging shops, ring rolling mills and other demanding....

In use

From product to application

Our high-quality steel products are used in many applications.

Tool steel

Used as a primary material for casting molds.

Open-die forgings

Used as guide shafts, e.g. in packaging and CNC machines.

Iron castings

Used for reciprocating compressors, primarily in refrigeration technology.

Seamless rolled rings

Used in pelletizing systems for animal feed and wood pellets.

Would you like to join us as
a decarbonization pioneer?

With us, you can lead your company into a green future.