
STEP-G produces high-strength aluminium bars and solid sections for safety-critical applications in the commercial and military aerospace industries. Through a strong network of aerospace partners, we supply extruded and cold-finished bars to leading CNC machine e shops and the forging industry.
After machining, surface treatment and assembly, our materials are used in valves, fittings, heat exchangers, landing gear, structural parts, cockpit components, cargo loading systems, fasteners and more in aircrafts and helicopters of the world’s leading aerospace OEMs.
In the aerospace industry, every gram counts. Aircraft components must be capable of withstanding extreme loads and harsh conditions. Aluminium is therefore the ideal material because of its light weight, high strength, toughness and elasticity.
![[Translate to EN:] Leichtigkeit](/fileadmin/_processed_/3/a/csm_Feder_Festigkeit_14246320_3e0e2fca03.png)
Minimal weight with maximum strength

High-precision manufacturing & exact tolerances

Excellent stress corrosion cracking resistance

Low-stress design for optimal machinability
In the aerospace industry, the highest quality standards and absolute reliability are crucial. STEP-G is EN9100-certified and NADCAP-accredited for non-destructive testing and heat treatment. In addition, we have been qualified for decades by many of the leading aerospace OEMs.
Due to precise manufacturing equipment and more than 80 years of experience, we produce aluminium bars that not only meet the highest quality standards but also contribute to a sustainable environment. Thanks to Recyclability of aluminium, our solutions help to reduce the ecological footprint – without any compromises in safety and functionality.
STEP-G stands for quality, safety and lightweight solutions in the aerospace industry.
Working with you, we ensure that solutions meet the highest requirements – individually, efficiently and with a focus on the future.
For decades, the Duffel plant has stood for reliability, continuity and excellent quality. Our aerospace customers know they can rely on the materials produced in Duffel today as well as in the years to come. When it comes to extrusions for high-end and safety-critical components they address STEP-G.
Tom Van Hemel
Head of CC Hard Alloys, Aerospace & Defence