NK DH32 36 40 Marine Steel Plate

"NK DH32/36/40 Marine Steel Plate" refers to shipbuilding steel plates certified by the Nippon Kaiji Kyokai (ClassNK), a well-known classification society.

 

These steel plates have the following characteristics and properties:

 

Characteristics:

 

High strength: The DH32, DH36, and DH40 grades offer increasing levels of strength. They can bear heavy loads and stresses, ensuring the structural integrity of ships and marine structures.

Good toughness: Possess excellent toughness, especially at low temperatures. This enables them to withstand impacts and dynamic forces encountered in marine environments without fracturing easily.

Weldability: Can be welded using appropriate welding techniques and procedures. However, due to their high strength and alloy content, careful attention must be paid to welding parameters to ensure high-quality welds.

Corrosion resistance: Have a certain degree of resistance to corrosion from seawater and marine atmospheres. Additional protective coatings may be applied for enhanced corrosion protection.

 

Properties	Details
Chemical Composition	C: ≤0.18%, Si: ≤0.50%, Mn: 0.90-1.65%, P: ≤0.035%, S: ≤0.035%, Cu: ≤0.35%, Ni: ≤0.40%, Cr: ≤0.20%, Mo: ≤0.08%, Nb: 0.02-0.05%, V: 0.05-0.10%, Ti: ≤0.02%
Mechanical Properties	Yield Strength: ≥355 MPa, Tensile Strength: 490-630 MPa, Elongation: ≥21%
Quenching	Not applicable for normal use. Generally, AH36 marine steel plate is not quenched.

 

Properties:

 

Chemical composition: Varies depending on the grade but generally contains elements such as carbon, silicon, manganese, phosphorus, sulfur, and various alloying elements to achieve the desired mechanical properties.

Mechanical properties:

Yield strength: DH32 typically has a yield strength of around 315 MPa, DH36 has a higher yield strength of about 355 MPa, and DH40 has an even greater yield strength.

Tensile strength: Ranges from approximately 440 MPa for DH32 to higher values for DH36 and DH40.

Elongation: Usually around 22% or more, indicating the ability of the steel to deform without breaking.

 

These marine steel plates are widely used in the shipbuilding industry for constructing hulls, decks, bulkheads, and other structural components of ships. They are also employed in offshore structures and marine engineering projects where high strength and durability are required. The choice of a specific grade depends on the design requirements, operating conditions, and load-bearing capacities of the intended application.

 

 

 

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 NK DH32 36 40 Marine 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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