DH36 Shipbuilding Steel Plate

What is DH36 shipbuilding steel plate?

DH36 shipbuilding steel plate is used for shipbuilding and platforms.The shipbuilding steel plate grade DH36 is the high tensile strength steel. The “DH” denotes the grade, where “D” stands for high-strength and “H” indicates heat treatment. Equivalent grades include ABS DH36, LR DH36, and BV DH36. DH36 steel features high yield strength, good toughness, and excellent weldability. DH36 shipbuilding steel is the hull structural steel, with it’s good toughness properties, higher strength, strong corrosion-resistance,the processing properties,and welding properties. ASTM A131 DH36 steel plate can be used in the manufacture of the ship’s hull structure, whose weight is more than 10000 tons.

Our DH36 shipbuilding steel products are specifically engineered to meet the rigorous demands of high-strength structural applications in the shipbuilding industry, ensuring reliable performance and safety:

Standard: ASTM A131
Certificate: EN 10204 Type 3.2
Impact Strength: 25 ft-lbs at -4°F (34 J at -20°C)

Heat Treatment

Normalizing: Heat to 900-940°C, hold for 1 hour per inch, air cool.
Annealing: Heat to 830-870°C, hold for 1 hour per inch, furnace cool to 600°C, air cool.
Hardening: Heat to 880-920°C, hold for 1 hour per inch, quench in water or oil.
Tempering: Heat to 540-680°C, hold for 1 hour per inch, air cool.
Stress Relieving: Heat to 600-650°C, hold for 1 hour per inch, air cool.

Surface Finish

Shot Blasting: Cleans and prepares surfaces using abrasive material, making them ready for coating and improving adhesion.
Sand Blasting: Uses sand particles to clean and roughen surfaces, suitable for various applications.
Pickling and Passivation: Chemical treatment removes contaminants and rust, enhancing corrosion resistance and creating a smooth surface.
Polishing: Uses abrasive material to make surfaces smooth and shiny, often for aesthetic purposes.
Electroplating: Applies a metal coating using electric current to improve corrosion resistance and appearance.
Painting and Coating: Adds a protective layer to prevent corrosion and enhance durability and appearance.

*Customisation is available upon request.

Grade	C %	Si %	Mn %	P %	S %	Al(acid soluble),min%	Cb	V	Ti	Cu	Cr	Ni	Mo	N
ASTM A131 DH36	0.18	0.10-0.50	0.90-1.60	0.035	0.035	0.015	0.02-0.05	0.05-0.10	0.02	0.35	0.20	0.40	0.08	…

Grade	Yield Strength (Mpa)	Tensile Strength (MPa)	Elongation in8 in.[200mm] (%)	Elongation in8 in.[200mm] (%)	Impact Energy (J)	Test Temperature(°C)
ASTM A131 DH36	≥355	490-620	≥19	≥22	34	-20

GNEE GROUP

Business

Products

News

DH36 Shipbuilding Steel Plate

What is DH36 shipbuilding steel plate?

DH36 shipbuilding steel plate Specification:

ASTM A131 DH36 steel plate Chemical Composition %

DH36 steel plate Mechanical Property

Heat Treatment

Surface Finish