API 2H GRADE 50 BAJA LAUT
API 2H GRADE 50 MARINE STEEL 3

API 2H Grade 50 is a high-strength, low-alloy steel plate that is specifically designed for use in offshore structures such as oil rigs and platforms. This type of steel is known for its excellent toughness and weldability, making it ideal for harsh marine environments where strength and durability are crucial.

Material Properties

The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.

GRADEYIELD POINT (KSI)TENSILE STRENGTH (KSI)MIN. 8” ELONGATION %
GRADE 50 – ≤2.5″ THICK5070-9016
GRADE 50 – >2.5″ THICK4770-9016

CHEMICAL COMPOSITION

The following composition properties are API specifications for the 2H grade.

GRADE 50 
CARBON0.18%
MANGANESE1.15-1.60%
PHOSPHORUS MAX0.030%
SULFUR MAX0.010%
SILICON0.05-0.40%
COLOMBIUM0.01-0.04%
TITANIUM0.020% MAX
ALUMINUM TOTAL0.02-0.06%
NITROGEN MAX0.012%

Advantages of API 2H Grade 50

One of the key advantages of API 2H Grade 50 marine steel is its high yield strength, which allows for the construction of lighter structures without sacrificing structural integrity. This can result in cost savings and improved efficiency in offshore projects. Additionally, the steel’s excellent weldability ensures that it can be easily fabricated and assembled on-site, reducing construction time and labor costs.

Characteristics of API 2H Grade 50

API 2H Grade 50 steel is characterized by its high tensile strength, which makes it resistant to fracture and deformation under high stress conditions. The steel also exhibits good impact toughness, allowing it to withstand harsh environmental conditions such as extreme temperatures and corrosive seawater. Furthermore, API 2H Grade 50 is designed to be corrosion-resistant, ensuring long-term durability in marine applications.

Applications and Uses

API 2H Grade 50 marine steel is commonly used in the construction of offshore platforms, oil rigs, and other marine structures where strength and durability are paramount. The steel’s high yield strength and excellent weldability make it an ideal choice for these applications, as it can withstand the harsh conditions of the open sea while maintaining structural integrity.

Advantages in Offshore Construction

When it comes to offshore construction, API 2H Grade 50 offers several advantages over other types of steel. Its high strength-to-weight ratio allows for the design of lighter structures that are still able to support heavy loads, reducing the overall weight of the platform and minimizing material costs. Additionally, the steel’s superior weldability ensures that construction crews can easily fabricate and assemble the components on-site, saving time and labor expenses.

Characteristics for Marine Environments

In marine environments, API 2H Grade 50 steel’s corrosion resistance is a key characteristic that sets it apart from other materials. The steel is specifically designed to withstand exposure to seawater, salt spray, and other corrosive elements without deteriorating over time. This makes it an ideal choice for offshore structures that are constantly exposed to harsh environmental conditions, ensuring long-term durability and reliability.

Pertanyaan yang Sering Diajukan

  • What are the main advantages of using API 2H Grade 50 marine steel?

API 2H Grade 50 offers high yield strength, excellent weldability, and corrosion resistance, making it ideal for offshore construction in harsh marine environments.

  • Where is API 2H Grade 50 commonly used?

API 2H Grade 50 is commonly used in the construction of offshore platforms, oil rigs, and other marine structures that require high strength and durability.

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