Austenitic-ferritics / duplex steels

Discover the duplex steels that combine the perfect properties of austenitic and ferritic stainless steels. With their exceptional mechanical strength, unsurpassed corrosion protection and improved resistance to stress corrosion cracking, these exceptional alloys set new standards in terms of durability.

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Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
Portfolio
Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
Portfolio
Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
Portfolio
Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
Portfolio
Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
Portfolio
Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
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Präzisionsgefertigte rostfreier stabstahl nahaufnahme

For demanding corrosive environments

Austenitic-ferritic steels are characterized by a high chromium content (22% and more) and a low nickel content (3.5-8%). They are also known as "duplex" steels.

Imagine immersing yourself in the most demanding corrosive environments without ever failing. Desalination applications, chemical industries and even underwater applications are their preferred terrain. Duplex grades are the unwavering solutions for your success, giving you the confidence that you are up to the most corrosive challenges.

UGIGRIP®

The ideal solution for securing the building structure

UGIGRIP® is available in a wide range of variants. In addition to excellent corrosion resistance, which ensures a long service life of the structures over several decades, the UGIGRIP® range offers a guarantee of:

  • Higher mechanical properties than conventional steel, allowing the use of smaller cross-sections or a reduction in reinforcement (i.e. weight and labor savings)
  • Mechanical properties - yield strength and elongation - that meet the requirements of Eurocode 8, Class M for earthquake-resistant construction
  • A selection of non-magnetic stainless steels for buildings where this property is required: hospitals, banks, airports, meteorological stations, etc. 
  • Mechanical properties at high temperatures - tensile strength and creep resistance - exceed those of conventional steels, resulting in improved fire resistance
  • A very low thermal conductivity, which gives this product exceptional properties for the treatment of thermal bridges.
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Product portfolio for every application

Our steel is a driving force and cornerstone in a wide range of sectors and industries, driving them worldwide and playing a decisive role in solving current and future challenges.

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Sustainability  |  09/01/2026

Swiss Steel Group once again secures top “A” score in CDP rating

Swiss Steel Group has been awarded the highest rating, “A,” in CDP’s annual sustainability assessment for climate change for the second consecutive year. This distinction, conferred by the internationally recognized non-profit organization CDP, underscores the Group’s continued commitment to climate action and sustainable business practices. This achievement reinforces Swiss Steel Group’s position as a leader in corporate transparency and action on climate change, standing out from nearly 22,100 companies assessed.

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Products  |  15/12/2025

Swiss Steel Group publishes new white paper on efficiency in machining

What makes steel truly machinable? Cutting speed, tool life, and process stability determine the cost-effectiveness of machining. Our new white paper "Machinability" shows how machinability-optimized special steels can measurably improve productivity, quality, and sustainability.

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Products  |  22/10/2025

Swiss Steel Group launches "Machinability – Keep the World Turning" campaign

Materials expertise for precision, process stability and energy efficiency in machining

With its "Machinability – Keep the World Turning" campaign, Swiss Steel Group is launching an international initiative to promote competence and innovation in machining. The campaign celebrates the partnership between Swiss Steel Group and the machinists who turn steel into progress – highlighting how material expertise, precision and collaboration keep the world moving. The campaign will kick off on 21 and 22 October 2025 at the Ugitech site in Ugine (France) with presentations and discussions on current developments in the machining of stainless steels and engineering steels.

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