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LR Grade DH40 Shipbuilding Steel Plate

September 25, 2023

Latest company case about LR Grade DH40 Shipbuilding Steel Plate

LR Grade DH40 Shipbuilding Steel Plate


The chemical composition of DH40 shipbuilding steel plate  mainly includes iron, carbon, manganese, silicon, phosphorus, sulfur and other elements. Among them, iron and carbon are the basic elements of steel, manganese and silicon can improve the strength and hardness of steel, phosphorus and sulfur affect the mechanical properties and processing properties of steel. The internal structure and mechanical properties of DH40 shipbuilding steel plate  can be improved by proper heat treatment process. The delivery status of DH40 ship plate includes normalizing, annealing, controlled rolling, tempering, quenching, tempering, etc. The specific status is determined according to customer needs. At the same time, in order to meet the requirements of the use of ships and offshore engineering, the DH40 ship plate needs to meet certain low temperature impact toughness requirements to ensure that it still has good toughness in extreme environments. In addition to being used in shipbuilding and ship repair, LR-DH40 ship plates can also be used instead of mining machinery, construction machinery, lifting equipment, large steel structures, offshore oil platforms, port platforms, etc.

latest company case about LR Grade DH40 Shipbuilding Steel Plate  0


Grade Chemical Composition(%)
C Mn≥ Si P S
LR DH40 0.18 0.90-1.60 0.50 0.035 0.035
Grade Mechanical Property

Tensile Strength


Yield Strength


% Elongation in 2 in.(50mm) min Impacting Test Temperature(°C)
LR DH40 510-650 390 20 -20


Since 2008, Gnee Group has provided quality steel products to more than 600 customers in more than 70 countries around the world. We have established long-term cooperative relationships with dozens of factories in China to ensure that our products are manufactured using high-quality materials and in sync with various international standards, with an annual export volume of more than 80,000 tons. Gnee Group is committed to becoming the world's most internationally competitive supply chain group, meeting the different needs of different customers, and truly realizing: one-stop service, making choice easier.

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