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With the in-depth development of the offshore oil industry and the increasing difficulty of drilling and production, the rack steel for jack-up drilling platforms has proposed the development needs of large thickness, high strength, and high toughness. Such products are generally delivered in the quenched and tempered heat treatment state. However, as the thickness of rack steel increases, the difference in structure and properties in the cross-sectional thickness direction increases. Improving the hardenability of extra-thick rack steel has become a difficult point in the development of such products.
Special steel for ships and offshore is a key material in the construction of marine structures. At present, China still imports a large amount of steel, which is urgently needed by the domestic shipbuilding industry. To promote the development of China’s high-tech ship and marine industry, a large number of key technologies need to be broken through. One of the core issues is the promotion and application of special steels for ships and offshore. It requires the joint efforts of metallurgical enterprises and the shipbuilding industry to realize multiple varieties and specifications as soon as possible.
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
