S355G7+N SHIP STEEL PLATE
S355G7+N SHIP STEEL PLATE 3

S355G7+N ship steel plate is a high-strength, low-alloy steel plate designed specifically for use in the construction of ships and offshore structures. It offers excellent weldability and is known for its exceptional durability and resistance to corrosion. This steel plate is often used in the construction of oil rigs, offshore platforms, and various types of marine vessels. Its high tensile strength and toughness make it an ideal choice for applications where reliability and safety are paramount. With its superior properties, S355G7+N ship steel plate is a trusted and reliable option for marine engineering projects.

EN10225 S355G7+N Steel Chemical Composition   

S355G7+NThe Element Max (%)
CSiMnPSNbVTiAlCrNiMoCuN
0.140.15
|
0.55
1.00-1.650.0200.0100.0400.0600.0250.015
|
0.055
0.250.500.080.300.010

EN10225 S355G7+N Steel Mechanical Property

S355G7+NYield Strength
mm
Min(Mpa)
Tensile Strength
mm
Min(Mpa)
 Elongation
Min,%
 

100
>100≤16
16

25

25

40

40≤
63

63

100

100

150
 22
470-630460-620355355345335325320

Advantages of S355G7+N Ship Steel Plate

The S355G7+N ship steel plate offers a myriad of advantages that make it a preferred choice for shipbuilding projects:

  • High Strength: The S355G7+N steel plate is known for its high tensile strength, making it ideal for withstanding the harsh conditions at sea.
  • Corrosion Resistance: This steel plate is designed to resist corrosion, ensuring the longevity of the vessel even in saltwater environments.
  • Weldability: The S355G7+N steel plate is easily weldable, allowing for efficient construction and repair work on ships.
  • Toughness: With excellent toughness properties, this steel plate can withstand impact and heavy loads, enhancing the safety of the vessel.

Characteristics of S355G7+N Ship Steel Plate

Understanding the key characteristics of the S355G7+N ship steel plate is essential for making informed decisions in shipbuilding projects:

  • Chemical Composition: The S355G7+N steel plate is primarily composed of carbon, manganese, silicon, and other alloying elements to enhance its mechanical properties.
  • Mechanical Properties: This steel plate exhibits high tensile strength, yield strength, and impact resistance, making it suitable for offshore applications.
  • Heat Treatment: The S355G7+N steel plate undergoes controlled heat treatment processes to achieve the desired mechanical properties and microstructure.

Applications and Uses of S355G7+N Ship Steel Plate

The versatility of the S355G7+N ship steel plate allows for a wide range of applications in the marine and offshore industries:

  • Shipbuilding: The S355G7+N steel plate is commonly used in the construction of various types of vessels, including oil tankers, cargo ships, and offshore platforms.
  • Offshore Structures: This steel plate is ideal for offshore structures such as oil rigs, wind turbines, and subsea pipelines due to its high strength and corrosion resistance.
  • Marine Equipment: The S355G7+N steel plate is also utilized in the manufacturing of marine equipment and components that require durability and reliability.

Frequently Asked Questions about S355G7+N Ship Steel Plate

1. What are the key properties of S355G7+N ship steel plate?

The S355G7+N steel plate offers high strength, corrosion resistance, weldability, and toughness.

2. What are the common applications of S355G7+N ship steel plate?

This steel plate is widely used in shipbuilding, offshore structures, and marine equipment.

3. How is the S355G7+N ship steel plate different from other grades?

The S355G7+N steel plate is specifically designed for marine and offshore applications, offering superior mechanical properties and corrosion resistance.

4. What are the recommended welding techniques for S355G7+N ship steel plate?

It is recommended to use low hydrogen welding processes such as submerged arc welding or gas metal arc welding for optimal results.

5. How can I ensure the proper maintenance of S355G7+N ship steel plate?

Regular inspection, cleaning, and coating with anti-corrosion materials are essential for maintaining the integrity of the steel plate in marine environments.

In conclusion, the S355G7+N ship steel plate is a versatile and reliable material that plays a crucial role in the construction of ships, offshore structures, and marine equipment. Its high strength, corrosion resistance, and weldability make it a top choice for demanding marine applications. By understanding the advantages, characteristics, applications, and uses of the S355G7+N ship steel plate, stakeholders in the shipbuilding industry can make informed decisions to ensure the safety and longevity of their vessels.

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.
certificate

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?
Measurement-and-quality-testing3
  • 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
Machining-and-finishing1
Machining-and-finishing3
Machining-and-finishing2
  • CNC machining - turning, milling, drilling
  • Surface treatments like polishing
  • Heat treatments - quenching, annealing
  • Wet/powder coating
cutting-service3
cutting-service1
cutting-service2
  • Waterjet cutting
  • Laser cutting
  • Plasma cutting
  • Shearing/punching
Molding-and-Manufacturing3
Molding and Manufacturing1
Molding-and-Manufacturing2
  • Rolling
  • Press braking
  • Plate bending - concave & convex
  • Profile bending -custom fabrication as per drawings
Testing-and-Inspection3
Testing-and-Inspection1
Testing-and-Inspection2
  • Chemical analysis
  • Mechanical testing
  • Non-destructive examination
  • Ultrasonic, radiography testing

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