What is the differences between shipbuilding steel plate and ordinary steel plate?

General industrial shipboard is made of steel. So what is the differences between shipbuilding steel plate and ordinary steel plate?

Steel plates for hull structure are referred to as marine steel plates. Due to the harsh working environment of the ship, the hull of the ship is subject to seawater chemical corrosion, electrochemical corrosion, marine organisms, and microorganisms. The hull bears large wind and wave impacts and alternating loads. The shape of the ship makes its processing method complicated. The steel structure of the hull has strict requirements.

First of all, the most critical requirement is good toughness for marine steel plates. In addition, shipbuilding steel plate must have high strength, good corrosion resistance, welding performance, processing and forming performance and surface quality. There are two types of shipbuilding steel plate for hulls: general thickness and high-strength steel. General-strength steel is divided into four grades according to quality: A, B, C and D; high-strength steel is divided into two strength grades and three quality grades: AH32, DH32, EH32, AH36, DH36, EH36. Therefore, the differences between shipbuilding steel plate and ordinary steel plate are mainly to resist chemical corrosion and microbial corrosion. The hull can withstand the impact of larger wind and waves and alternating charges. And shipbuilding steel plate also has good toughness, good welding performance, easy plasticity and so on.

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