The LR EH36 steel grade is a high-strength, reliable material, designed specifically for use in the construction of ships and offshore platforms. This steel grade offers a unique combination of chemical composition, mechanical properties, and heat treatment that make it suitable for a range of demanding applications.

 

Chemical Composition

The primary alloying elements in LR EH36 steel are carbon, manganese, and phosphorus. The precise amounts of these elements control the mechanical properties and weldability of the steel. The carbon content provides strength, while the manganese adds further strength and toughness. Phosphorus is added to enhance the hardenability of the steel.

 

Mechanical Properties

LR EH36 steel exhibits excellent tensile strength, yield strength, and impact toughness. It is designed to withstand bending, compression, and shear loads, making it suitable for use in shipbuilding and offshore platform construction. The material has good fatigue resistance and can handle cyclic loading without failure.

 

Heat Treatment

Heat treatment is crucial to optimizing the mechanical properties of LR EH36 steel. It involves heating the steel to a temperature between 700 and 900°C, holding it at this temperature for a period of time to allow diffusion of the alloying elements, and then air cooling or quenching. This process improves the microstructure of the steel, leading to better mechanical properties.

 

Impact Test

The low-temperature impact resistance of LR EH36 steel is crucial for offshore applications, where the material may be exposed to sub-zero temperatures. The steel must be able to withstand sudden temperature changes without cracking or fracturing. Impact testing at low temperatures ensures that the steel meets these requirements, providing reassurance that it will perform well in severe environments.

 

Main Applications

LR EH36 steel is primarily used in the construction of ships and offshore platforms. It is particularly suitable for hull structures, where it provides exceptional strength and durability. The material is also used in the fabrication of large components, such as decks, hull plating, and bulkheads. In offshore platforms, it finds application in piling, jacket structures, and other load-bearing components that require high strength and toughness.

 

TJC Steel Group’s Supply Cases

TJC Steel Group is a leading manufacturer and supplier of LR EH36 steel in the region. We have a long track record of supplying this high-quality material to various shipyards and offshore platform operators. One notable recent supply case was for the construction of a large tanker vessel. TJC Steel Group supplied LR EH36 steel for the hull structure, deck plating, and other critical components of the ship. The material performed exceptionally well during fabrication and sea trials, meeting all design and operational requirements.