ABS Shipbuilding Material Marine Grade Steel Plate

The specific standards and requirements for ABS DNV Proved DH32 Steel Plate are as follows:

 

Chemical Composition:

Carbon (C): The carbon content is typically required to be less than or equal to 0.18% by mass. Carbon is an important element that affects the strength and hardness of the steel, but excessive carbon can reduce the steel's weldability and toughness.

Manganese (Mn): The manganese content should be in the range of 0.90% to 1.60%. Manganese helps to improve the strength and toughness of the steel and also has a positive effect on the hardenability.

Silicon (Si): The silicon content is usually limited to less than or equal to 0.50%. Silicon can enhance the strength and oxidation resistance of the steel, but too much silicon may lead to brittleness.

Phosphorus (P) and Sulfur (S): The maximum allowable content of phosphorus is 0.035%, and that of sulfur is 0.035%. These two elements are impurities in the steel, and excessive amounts can cause brittle fractures and reduce the corrosion resistance of the steel.

Aluminum (Al): The aluminum content should be greater than or equal to 0.015%. Aluminum is used as a deoxidizer in the steelmaking process and can also improve the toughness and corrosion resistance of the steel.

Other Alloying Elements: There are also requirements for other alloying elements such as niobium (Nb), titanium (Ti), vanadium (V), nickel (Ni), copper (Cu), chromium (Cr), and molybdenum (Mo). For example, the content of niobium is usually in the range of 0.02% to 0.05%, and the content of vanadium is 0.05% to 0.10%.

Mechanical Properties:

Yield Strength: The yield strength of DH32 steel plate should be greater than or equal to 315 MPa. Yield strength is an important indicator of the material's ability to resist deformation under load.

Tensile Strength: The tensile strength should be in the range of 440 MPa to 590 MPa. Tensile strength reflects the maximum stress that the material can withstand before breaking.

Elongation: The elongation at break should be not less than a certain value (usually around 22% for a 200 mm gauge length and 26% for a 50 mm gauge length). Elongation indicates the ductility of the material, which is important for the steel's processing and forming performance.

Impact Toughness: The steel plate needs to meet specific requirements for impact toughness at different temperatures. For example, at a certain low temperature (such as -20°C), the impact energy value should reach a certain level to ensure the steel's performance in cold environments.

Dimensions and Tolerances:

Thickness: The thickness of the steel plate usually ranges from a few millimeters to several hundred millimeters, and there are specific tolerance requirements for the thickness. For example, the thickness tolerance should be within a certain range to ensure the uniformity of the steel plate's thickness and meet the design and construction requirements.

Width and Length: The width and length of the steel plate also have specific size requirements and tolerances, which are determined according to the needs of different shipbuilding projects and processing technologies.

 

 

 

 

 

Specification we supply：

Thickness	2-200mm
Width	1000-4000mm
Length	5000-15000mm

The American Bureau of Shipping(ABS) is a maritime classification society established in 1862. Its primary responsibility of ABS is to verify that ABS-classed ships and marine structures comply with the established rules for design,construction and periodic survey.

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our ABS Shipbuilding Material Marine Grade Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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