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The steel for offshore platforms such as S460G2+QT steel plate was developed on the basis of hull structural steel. The steel platforms originally built were all hull structural steel. However, with the development of marine industry, oil development has gradually developed from shallow seas to deep seas, and from warm sea areas to low temperature and cold sea areas. Offshore platforms have to withstand various climatic conditions and wind and waves, and suffer from seawater corrosion. The working environment is also very harsh.
Secondly, the trend of large-scale structure is obvious, the structure is complex, the welding workload is large, and the joint welding is inherently difficult. In addition to the high stress concentration, the structure is in a more dangerous state; and with the large-scale structure, the thickness of the component increases and its damage is caused. The danger is getting bigger and bigger. Therefore, in order to ensure the safe and reliable operation of the offshore platform, the steel used such as S460G2+QT steel plate has been put forward higher requirements than the steel used for hull structure.
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
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BBN SHIP STEEL FACTORY
