What is ABS DH40?

DH40 steel is a high-strength structural steel used in marine and offshore engineering. It primarily consists of iron, carbon, and manganese, with microalloying elements added to enhance durability. “D”  stands for toughness level at -20℃, “H” indicates high-strength steel, and “40” for a minimum yield strength of 390Mpa.

The key features of DH40 steel include high yield and tensile strength, enabling it to withstand high-stress environments. It offers excellent toughness for low-temperature impact resistance and good corrosion resistance, making it suitable for harsh marine conditions. Additionally, its low-carbon equivalent ensures easy weldability, which is essential for large-scale construction.

DH40 steel is widely used in shipbuilding, including hulls, decks, and bulkheads. It is also utilized in offshore platforms, bridge structures, and heavy machinery, making it ideal for demanding environments and complex engineering applications.

Characteristics of DH40 Steel Plate

• High strength for heavy-duty applications
• Excellent toughness, even at low temperatures
• Good wear resistance under tough conditions
• Resistant to cracking under stress
• Good machinability and weldability

Equivalent steel grade of AB/DH40