S355G5+M is a high-strength structural steel plate specifically designed for use in shipbuilding. It offers excellent weldability, high tensile strength, and good toughness, making it ideal for building durable and reliable marine vessels. The M designation indicates that the steel has been thermomechanically rolled, resulting in improved mechanical properties. This steel plate is commonly used in offshore structures and oil rigs due to its superior strength and corrosion resistance. Overall, S355G5+M is a versatile and reliable material that meets the stringent requirements of the maritime industry.

Chemical Composition For S355G5+M Ship Building Steel Plate

NiAlt min.CuNNbTiV

Mechanical Property For S355G5+M Offshore Structural Steel Plates

Rm – Tensile strength (MPa) (+M)470-610
Nominal thickness (mm):to 1616 – 25
ReH – Minimum yield strength (MPa) (+M)355345
KV – Impact energy (J) (+M)-20°
A – Min. elongation Lo = 5,65 √ So (%) (+M)22

Advantages of S355G5+M Ship Building Steel Plate

1. High Strength: S355G5+M steel plate offers excellent strength and toughness, making it ideal for use in the construction of ships and offshore structures. Its high yield strength ensures structural integrity and reliability in harsh marine environments.

2. Corrosion Resistance: The S355G5+M steel plate is designed to withstand corrosion from seawater and other harsh elements, making it a durable and long-lasting material for marine applications. This corrosion resistance helps to prolong the lifespan of ships and offshore platforms.

Characteristics of S355G5+M Ship Building Steel Plate

1. Chemical Composition: The S355G5+M steel plate is a low carbon, high-strength steel that contains elements such as manganese, silicon, and phosphorus. These elements contribute to the material’s mechanical properties and performance in marine environments.

2. Weldability: S355G5+M steel plate is known for its excellent weldability, allowing for easy and efficient fabrication of ship structures. This weldability ensures that the material can be easily formed and shaped to meet the specific requirements of shipbuilding projects.

Applications and Uses of S355G5+M Ship Building Steel Plate

The S355G5+M steel plate is commonly used in a variety of shipbuilding applications, including:

  • Construction of hulls and superstructures
  • Fabrication of offshore platforms and structures
  • Manufacture of marine equipment and components

Due to its high strength, corrosion resistance, and weldability, the S355G5+M steel plate is a versatile material that is essential for the construction and maintenance of ships and offshore installations.

Frequently Asked Questions

Q: What are the key properties of S355G5+M ship building steel plate?

A: The key properties of S355G5+M steel plate include high strength, excellent weldability, and corrosion resistance, making it an ideal material for shipbuilding applications.

Q: What are the common applications of S355G5+M steel plate?

A: S355G5+M steel plate is commonly used in the construction of ship hulls, offshore platforms, and marine equipment due to its superior mechanical properties and durability.

Q: How does S355G5+M steel plate compare to other materials used in shipbuilding?

A: S355G5+M steel plate offers a unique combination of strength, weldability, and corrosion resistance, making it a preferred choice for shipbuilding projects where reliability and performance are paramount.

In conclusion, the S355G5+M ship building steel plate is a high-quality material that offers numerous advantages for the maritime industry. Its high strength, corrosion resistance, and weldability make it an essential component in the construction of ships and offshore structures. By understanding the characteristics, advantages, applications, and uses of this steel plate, professionals in the shipbuilding industry can make informed decisions when selecting materials for their projects.

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.

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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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