Differences Between LR Grades AH36, DH36, and EH36
- Jul 20, 2026
Knowledge

LR AH36 shipbuilding steel plate is one of the designated structural materials for ultra-large ocean-going commercial vessels worldwide, suitable for large container ships, ultra-large bulk carriers, medium- to large-sized oil tankers, and general-purpose large cargo ships.
Primary application areas include: the main deck, bottom plates, outer side plating, load-bearing bulkheads, and hull reinforcement frames.
Its high load-bearing capacity and excellent fatigue resistance effectively withstand extreme wave impacts, hull torsion, and alternating loads, ensuring long-term safe navigation in conventional waters.

In the field of coastal engineering, LR AH36 shipbuilding steel plates are widely used in heavy-duty dredgers, large rescue vessels, coastal patrol boats, port service vessels, and heavy-duty intertidal engineering structures.
Such vessels and facilities are subjected to high operational loads; the enhanced strength and stable low-temperature toughness of LR AH36 at 0°C fully meet their requirements for heavy-load operation and environmental adaptability.
At the same time, the steel plate’s excellent formability and weldability support the efficient construction of complex, custom-designed structures.

LR AH36 shipbuilding steel plates are suitable for key and auxiliary components of offshore platforms in tropical and temperate waters, including main deck systems, heavy-duty support frames, equipment load-bearing bases, and large-scale pipeline support structures.
Under non-extreme cold offshore service conditions, its stable high strength and corrosion resistance meet the demands of long-term heavy-load operation, avoiding the performance redundancy and increased costs associated with the use of ultra-low-temperature high-grade steels, thereby achieving the optimal cost-performance ratio for conventional heavy-duty offshore projects.

In large-scale port construction and the retrofitting of heavy-duty coastal facilities, LR AH36 shipbuilding steel plates are used in wharf load-bearing structures, large-scale collision protection facilities, heavy-duty breakwater steel structures, and offshore buoy foundations.
This steel plate is resistant to seawater immersion and high-salt-fog corrosion, adapts to seasonal temperature fluctuations, offers stable structural durability, and features low maintenance costs over its entire life cycle, making it the preferred high-strength material for heavy-duty facilities in medium- to large-scale coastal ports.

LR AH36 shipbuilding steel plates are also used in critical structural components of large-scale marine mechanical equipment, such as heavy equipment support bases, protective load-bearing brackets, and large auxiliary equipment housings.
Their excellent cutting, bending, and welding properties support the precision fabrication of complex, heavy-duty structures, while their stable, high-strength mechanical properties ensure the long-term, reliable operation of auxiliary equipment in typical marine and coastal heavy-load environments.
Customers choose to engage in long-term cooperation with Yuxin Steel not only because of our high-quality products and services, as well as our strong reputation in the international market, but also due to our experienced one-stop raw material supply and further steel processing capabilities!