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S355J2C+N – High-strength structural steel for demanding applications

Stahlbarren in verschiedenen Größen liegen übereinander gestapelt auf einer Fläche. Die Barren haben eine metallische Oberfläche und zeigen leichte Abnutzungsspuren. Das Bild vermittelt einen industriellen, robusten Eindruck.

What is S355J2C+N?

S355J2C+N is a non-alloy structural steel designed for demanding applications. The designation “S355” represents a minimum yield strength of 355 MPa, while “J2” describes an impact toughness of 27 Joules at -20°C. The “C” indicates that the steel is cold formable, and the “+N” signifies that it has been normalized or normalizing rolled.

Thanks to its high strength, excellent toughness, and good weldability, S355J2C+N is ideal for use even under difficult conditions and low temperatures.

Chemical composition of S355J2C+N

S355J2C+N setzt sich aus einer ausgewogenen Mischung von Kohlenstoff (C), Silizium (Si), Mangan (Mn), Phosphor (P), Schwefel (S) und Stickstoff (N) zusammen. Die niedrigen Gehalte an Phosphor und Schwefel tragen zur verbesserten Zähigkeit und Schweißbarkeit bei, während der optimierte Mangananteil die Festigkeit des Stahls unterstützt.

Mechanical properties of S355J2C+N

  • Yield strength: ≥ 355 MPa

  • Tensile strength: 470 – 630 MPa

  • Elongation at fracture: ≥ 22 %

  • Impact work: ≥ 27 J at -20 °C

     

Thanks to its high toughness, S355J2C+N is particularly suitable for load-bearing structures.

Advantages of S355J2C+N compared to other steels

  • Higher toughness than standard S355JR
  • Improved cold formability due to the “C” designation
  • Reduced risk of brittle fracture due to low phosphorus and sulfur content
  • Excellent weldability – no preheating required
Ein Schweißer trägt Schutzbrille und Schutzhandschuhe, während er mit einer Flex an einem Metallstück arbeitet. Funken sprühen in alle Richtungen, während das Werkzeug das Metall bearbeitet. Der Schweißer ist konzentriert bei der Arbeit, umgeben von der intensiven Helligkeit und den flimmernden Funken.

Typical applications of S355J2C+N

Thanks to its excellent mechanical properties, S355J2C+N is used in various fields:

Bridge construction: Ideal for load-bearing structures and demanding constructions
Mechanical engineering: High strength for components exposed to dynamic loads
Vehicle manufacturing: Particularly suitable for truck frames and chassis

This steel offers reliable performance and long service life in all these areas.

Machining and processing of S355J2C+N

S355J2C+N can be efficiently processed using various methods:

Welding: Can be done easily and without preheating.
Cutting: Suitable for laser cutting, plasma cutting, and oxy-fuel cutting.
Forming: Cold bending and rolling profiling are easily possible.

Blick auf eine lange Brücke, die sich in der Ferne bis zum Horizont erstreckt. Der Betrachter steht am Anfang der Brücke und schaut in die Weite, wobei die Struktur der Brücke deutlich sichtbar ist und den Weg bis zum Ende führt.

Price and availability of S355J2C+N

The prices for S355J2C+N vary depending on the market conditions and order quantity. Typically, the price range is between 1.50 and 2.50 €/kg, depending on the size of the dimensions and the supplier.

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Your contact for wear-resistant steel

If you have any questions about our range or services, please feel free to contact our representative. We are happy to assist you.

Heiner Büsselmann

Tel.: +49 (0)421 / 48 40 1922 – 21
E-Mail: hbuesselmann@unionstahl.com

Ein Mann im Anzug telefoniert und lächelt freundlich

Frequently Asked Questions (FAQ) about S355J2C+N

Is S355J2C+N better than S355JR?

Yes, S355J2C+N offers higher impact toughness and improved mechanical properties compared to S355JR.

Yes, S355J2C+N can be welded easily and is suitable for various welding processes.

Yes, S355J2C+N is suitable for many applications in the offshore sector. However, for particularly extreme conditions, the steel S355G10+N is a better choice.

Yes, comparable steels are S355K2+N and S420MC, which offer similar mechanical properties.

S355J2C+N is typically delivered in the form of plates, profiles, or tubes, depending on the requirements of the application.

The “+N” designation indicates that the steel has been normalized. This process improves the mechanical properties, especially strength and toughness.

S355J2C+N is a robust, high-strength structural steel that is characterized by outstanding mechanical properties. Its excellent toughness and superior weldability make it particularly suitable for demanding applications in the steel and mechanical engineering industries.