Constellium Knowledge Center

Constellium is a global aluminum manufacturing and recycling company. It produces rolled and extruded aluminum products for the aerospace, automotive, packaging, and other industrial markets. Headquartered in Paris, Constellium is listed on the New York Stock Exchange (NYSE: CSTM).

• Approximately 11,500 employees
• 23 manufacturing facilities in 10 countries
• 3 global R&D centers
• 270+ active patent families
• Nearly 50 university partnerships
• 2025 revenue: $8.4 billion

These figures are updated annually and represent Constellium's official corporate reference.

Constellium melts aluminum, combines it with additional elements to create alloys with specific properties, and casts it into billets and slabs. These are then extruded into profiles or rolled into plate, sheet, and coil for use in aircraft, rockets, vehicles, packaging, and other industrial applications.

• Developing aluminum alloys with specific properties
• Recycling aluminumCasting aluminum into slabs and billets
• Rolling slabs into plate, sheet, and coil
• Extruding billets into profiles
• Engineering products and manufacturing processes

Constellium manufactures rolled and extruded aluminum products, as well as engineered components and solutions.

• Plate, sheet, and coil
• Extruded profiles
• Structural and crash-management components
• Battery-enclosure materials and components
• Can sheet, foilstock, and closure stock
• Custom-engineered aluminum products

Aerospace

Constellium serves the aerospace industry with plates, sheets and profiles used in commercial, military and space applications.

• 2025 revenue contribution: 13%
• Main products:
  • Aluminum plate that can be machined into structural aircraft parts, including bulkheads, wing skins, ribs, spars, and other internal components.
  • Aluminum sheet primarily used for aircraft fuselage applications.
  • Extruded aluminum profiles used in structural components such as stringers and floor beams
  • Aluminum-lithium solutions offering weight savings of up to 20%, used across major aircraft platforms and space programs
• Main customers: Airbus, Boeing, Dassault Aviation, Embraer, Lockheed Martin, Pilatus, and other leading aerospace manufacturers.

Automotive

Constellium serves the automotive market with rolled aluminum products, extrusions, structural components, and battery solutions.

• 2025 revenue contribution: 25%
• Main products:
  • Aluminum sheet used for vehicle body panels and structures, including closure inners, outer panels, and structural applications
  • Crash-management systems used at the front and rear of vehicles to absorb impact energy and help protect occupants and critical vehicle components
  • Structural aluminum components designed to reduce vehicle weight while meeting strength, safety, and performance requirements
  • Aluminum sheet and extruded profiles used in battery enclosures to provide structural strength, crash and intrusion resistance, and thermal management
  • Engineered battery-enclosure components and systems developed with automotive manufacturers to support different vehicle designs and production requirements
• Main customers: Audi, BMW, Ford, General Motors, Honda, Jaguar Land Rover, Mercedes-Benz, Nissan, Porsche, Stellantis, Toyota, Volkswagen, and other leading automotive manufacturers.

Packaging

Constellium serves the packaging market with rolled aluminum products used in beverage and food cans, closures, aerosols, cosmetic packaging, and aluminum bottles.

• 2025 revenue contribution: 45%
• Main products:
  • Can sheet used to manufacture beverage and food cans
  • Closure stock used for bottle caps and other closures
  • Aluminum sheet used for aerosol cans and aluminum bottles
  • Rolled aluminum products used in cosmetic and other specialty packaging
• Main customers: AB InBev, Amcor, Ball, CANPACK, Crown, Molson Coors, and other leading packaging companies.

Industry, Transportation & Defense

Constellium serves the industrial, transportation, and defense markets with rolled aluminum products, extrusions, and semi-finished components.

• 2025 revenue contribution: 17%
• Main products:
  • Aluminum plate and sheet used in industrial equipment, machinery, and defense applications
  • Extruded aluminum profiles used in structural and transportation applications
  • Semi-finished aluminum components designed for demanding mechanical and performance requirements
  • Custom-engineered aluminum solutions developed for specific industrial, transportation, and defense applications
• Main customers: BAE Systems, Dassault Aviation, General Dynamics, KNDS, Lockheed Martin, Rheinmetall, Safran, Stadler, and other leading industrial, transportation, and defense companies.

Constellium combines materials science, engineering, advanced modeling, testing, and industrial trials to turn ideas into production-ready aluminum solutions, with a strong focus on developing lighter, more efficient, and more sustainable products and processes.

• Innovation focused on alloy development, recycling, low-carbon casting, and digital manufacturing
• Approximately 350 researchers and scientists
• Three R&D locations in C-TEC (France), Plymouth (USA) and UTC Brunel (UK)
• More than 270 active patent families
• Partnerships with approximately 50 universities and research laboratories
• Around $50 million invested in R&D in 2025

Constellium supports a circular economy by increasing the use of recycled aluminum, designing products and alloys that are easier to recycle, developing closed-loop systems, and promoting responsible practices across its value chain.

• More than 750,000 metric tons of annual recycling capacity
• 47% recycled aluminum input in 2025
• Target of at least 50% recycled aluminum input by 2030
• Closed-loop recycling programs with customers and partners
• Development of recycling-friendly alloys
• Investment in advanced sorting and scrap-separation technologies
• Recycling of both pre-consumer and post-consumer aluminum scrap
• Responsible sourcing of raw materials
• ASI certifications and regular ESG assessments by EcoVadis, MSCI, ISS ESG, and CDP

Constellium offers career opportunities across its manufacturing sites, R&D centers, and corporate offices. Its approximately 11,500 employees work in an international environment built around safety, integrity, innovation, collaboration, and continuous learning.

• Manufacturing and operations
• Engineering, research, and product development
• Sales, marketing, and commercial functions
• Digital, data, and information technologies
• Finance, human resources, communications, legal, and other corporate functions
• International mobility and career-development opportunities

Is Constellium an aluminum producer?
Constellium manufactures aluminum products, but it does not produce primary aluminum. It purchases primary and recycled aluminum, develops specific alloys, and transforms the metal into rolled products, extrusions, and engineered components.

Does Constellium produce primary aluminum?
No. Primary aluminum is produced from alumina through electrolysis. Constellium focuses on casting, rolling, extrusion, product engineering, and aluminum recycling.

What does Constellium do with aluminum?
Constellium combines aluminum with additional elements to create alloys with specific properties, casts the metal into slabs and billets, then rolls or extrudes it into products for customers.

What is the difference between rolled products and extrusions?
Rolled products are made by passing aluminum slabs through rolling mills to produce plate, sheet, and coil. Extrusions are made by pushing heated aluminum billets through a die to create profiles with specific shapes.

Does Constellium manufacture finished consumer products?
Generally, no. Constellium primarily manufactures semi-finished products, structural components, and engineered solutions that customers integrate into aircraft, vehicles, packaging, and other applications.

Does Constellium develop its own aluminum alloys?
Yes. Constellium develops alloys and manufacturing processes to achieve specific properties such as lower weight, higher strength, corrosion resistance, formability, and increased recycled content.

Does Constellium recycle aluminum?
Yes. Constellium recycles both pre-consumer and post-consumer aluminum scrap and has more than 750,000 metric tons of annual recycling capacity.