Shipbuilding steel plates are essential components in the construction of ships, providing strength and durability to withstand harsh marine environments. Among the various grades available, S355G2+N is a popular choice for its excellent properties and wide range of applications.

S355g2+N Structural Steel Plate Chemical Composition

0.0500.0200.00350.090 to1.0650.00300.0100.030
Alt min.0NiNCuNbVTi

S355G2+N Offshore Platform Steel Plate Mechanical Property

Rm – Tensile strength (MPa) (+N)470 to 630
Nominal thickness (mm):to 1616 to 25
ReH – Minimum yield strength (MPa) (+N)355345
KV – Impact energy (J) (+N)-20°
A – Min. elongation Lo = 5,65 √ So (%) (+N)22

Equivalent Grades Of S355G2+N Offshore Structural Steel Plates

Warning! Only for reference


S355g2+N Structural Steel Plate Technical Requirements

  • Ultrasonic test under ASTM A435, EN 10160, A578, A577
  • Low temperature impacting test
  • Z TEST (Z15, Z35, Z25 )
  • Shot blasting and Painting,Cutting and welding as per end user’s demand
  • under EN 10204 FORMAT 3.1/3.2 Issued Orginal Mill test certificate

Advantages of S355G2+N Shipbuilding Steel Plate

S355G2+N steel plate offers several advantages that make it a preferred choice for shipbuilding applications. One of the key benefits is its high tensile strength, which ensures the structural integrity of the ship under extreme conditions. Additionally, S355G2+N has excellent weldability and formability, allowing for easy fabrication and assembly during the shipbuilding process. Its superior corrosion resistance also helps to prolong the lifespan of the vessel, reducing maintenance costs in the long run.

Characteristics of S355G2+N Shipbuilding Steel Plate

When it comes to the characteristics of S355G2+N steel plate, several factors set it apart from other materials. This grade of steel is known for its good impact toughness, making it suitable for use in demanding marine environments where shock and vibration are common. S355G2+N also exhibits good fatigue resistance, ensuring the structural integrity of the ship over prolonged periods of operation. Its high yield strength and low carbon content further contribute to its excellent performance in shipbuilding applications.

Application Fields and Uses of S355G2+N Shipbuilding Steel Plate

The versatility of S355G2+N steel plate makes it suitable for a wide range of applications in the shipbuilding industry. This material is commonly used in the construction of hulls, decks, and superstructures of various types of vessels, including cargo ships, oil tankers, and offshore platforms. S355G2+N is also utilized in the fabrication of marine equipment and components, such as cranes, winches, and davits, due to its superior strength and durability. Its compatibility with different welding methods further enhances its usability in shipbuilding projects.

Frequently Asked Questions

What are the key advantages of S355G2+N shipbuilding steel plate?

S355G2+N steel plate offers high tensile strength, excellent weldability, formability, corrosion resistance, impact toughness, and fatigue resistance, making it an ideal choice for shipbuilding applications.

Where is S355G2+N shipbuilding steel plate commonly used?

S355G2+N steel plate is used in the construction of hulls, decks, superstructures, marine equipment, and components for various types of vessels, as well as offshore platforms.

Overall, S355G2+N shipbuilding steel plate is a versatile and reliable material that plays a crucial role in the construction of ships and marine structures. Its superior properties and wide range of applications make it a preferred choice for shipbuilders and manufacturers worldwide.

Why Choose Gnee Steel

If you want to find a trustable steel products manufacturer, Gnee will be your best choice. 15 years of experience steel products manufacturer, certified by the classification society, CE, ISO, and SGS. And we guarantee the highest safety and quality standards. We fulfill all requirements of reputed classification societies.

In addition, our steel has been successfully exported to more than 60 countries such as Germany, South Korea, the United States, Mexico, and Argentina. Many regular customers come to visit our company and factory and make multiple orders.

Partner Company Display
What Services Does Gnee Provide?
  • Dimensional Inspection: Length, width, diameter; Thickness, straightness; Flatness, profile;
  • Surface Inspection: Visual inspection; Roughness testing; Coating thickness measurement;
  • Composition Testing: Interstitial elemental analysis - C,S,P, Si; Alloy grading verification; Inclusion rating;
  • Mechanical Testing: Tensile strength, yield strength; Toughness, ductility; Hardness testing;
  • Flaw Detection: Ultrasonic, radiographic testing; Magnetic particle, dye penetrant testing;
  • Documentation: Inspection reports; Test certificates; Material traceability
  • CNC machining - turning, milling, drilling
  • Surface treatments like polishing
  • Heat treatments - quenching, annealing
  • Wet/powder coating
  • Waterjet cutting
  • Laser cutting
  • Plasma cutting
  • Shearing/punching
Molding and Manufacturing1
  • Rolling
  • Press braking
  • Plate bending - concave & convex
  • Profile bending -custom fabrication as per drawings
  • Chemical analysis
  • Mechanical testing
  • Non-destructive examination
  • Ultrasonic, radiography testing

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