S355G9+N SHIPBUILDING STEEL PLATE
S355G9+N SHIPBUILDING STEEL PLATE 3

S355G9+N Shipbuilding Steel Plate is a high-strength steel plate designed specifically for use in the construction of ships and offshore structures. It is known for its excellent weldability and toughness, making it ideal for marine applications where strength and durability are crucial. This steel plate is produced in compliance with international standards and specifications, ensuring its reliability and quality. With its superior properties, S355G9+N Shipbuilding Steel Plate is a popular choice among shipbuilders and offshore engineers looking to create sturdy and reliable vessels that can withstand harsh marine environments.

EN10225 S355G9+N Steel Chemical Composition   

S355G9+NThe Element Max (%)
CSiMnPSNbVTiAlCrNiMoCuN
0.120.15
|
0.55
1.650.0200.0100.0300.0600.0250.015
|
0.055
0.200.700.080.300.010

EN10225 S355G9+ N Steel Mechanical Property

S355G9+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 S355G9+N Shipbuilding Steel Plate

S355G9+N is a high-strength structural steel grade that offers several advantages for shipbuilding applications. Some of the key benefits include:

  • Excellent Weldability: S355G9+N steel plate can be easily welded using common welding methods, ensuring strong and reliable joints in ship structures.
  • High Tensile Strength: With a minimum yield strength of 355 MPa, S355G9+N provides exceptional tensile strength, making it suitable for demanding marine conditions.
  • Corrosion Resistance: The steel plate is designed to resist corrosion in marine environments, prolonging the lifespan of the ship’s structure.

Characteristics of S355G9+N Shipbuilding Steel Plate

In addition to its advantages, S355G9+N exhibits specific characteristics that make it a preferred choice for shipbuilding projects:

  • Impact Resistance: The steel plate has excellent impact resistance, ensuring the structural integrity of the ship even under extreme conditions.
  • Formability: S355G9+N can be easily formed into various shapes and sizes, allowing for flexibility in design and construction.
  • Low Carbon Content: The low carbon content of the steel plate enhances its weldability and reduces the risk of hydrogen-induced cracking.

Applications and Uses of S355G9+N Shipbuilding Steel Plate

S355G9+N steel plate finds widespread applications in the shipbuilding industry, serving various purposes in the construction of different types of vessels. Some common uses include:

  • Hull Structures: The high tensile strength and corrosion resistance of S355G9+N make it ideal for building hull structures that withstand the rigors of the sea.
  • Decking: The steel plate is often used for decking applications, providing a durable and stable surface for crew members and cargo.
  • Offshore Platforms: S355G9+N is also utilized in the construction of offshore platforms, where strength and reliability are paramount for safety and performance.
Frequently Asked Questions about S355G9+N Shipbuilding Steel Plate

Q: What is the chemical composition of S355G9+N steel plate?

A: The chemical composition typically includes elements such as carbon, manganese, silicon, phosphorus, sulfur, and niobium, among others, to achieve the desired mechanical properties.

Q: How is S355G9+N steel plate tested for quality assurance?

A: S355G9+N undergoes various tests, including impact testing, tensile testing, and ultrasonic testing, to ensure compliance with industry standards and specifications.

Q: What are the standard dimensions available for S355G9+N shipbuilding steel plate?

A: S355G9+N steel plate is typically available in standard thicknesses and widths to meet the requirements of shipbuilding projects, with custom sizes also available upon request.

In conclusion, S355G9+N shipbuilding steel plate offers a combination of strength, durability, and versatility that makes it a top choice for marine construction. Its superior properties and wide range of applications make it an indispensable material in the shipbuilding industry, ensuring the safety and performance of vessels in challenging maritime environments.

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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