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Shipbuilding steel is a kind of steel plate used by shipyards, shipbuilding companies and dockyards to manufacture hulls of cargo and passenger ships, boats, offshore drilling platforms, gateways and other structures and vessels. Besides steel plates, the industry also uses steel sheets in coils or cut to length, steel profiles (steel bulb flats, rounds and squares), and round and profiled tubes made from shipbuilding steel grades. Shipbuilding steel is produced under the control of certifying societies, sea and river registers (Det Norske Veritas Germanischer Lloyd, Registro Italiano Navale, Bureau Veritas, Lloyds Register, Nippon Kaiji Kyokai, American Bureau of Shipping, the Shipping Register of Ukraine and others).
Shipbuilding plates provide the required strength, plasticity and ductility during the long operation of vessel body structures at various temperatures. Shipbuilding steel has fair corrosion resistance and properties for easy cold and hot deformation and welding. The material is suitable for gas, plasma and laser-cutting.
Modern marina steels meet the requirements of International Association of Classification Societies (IACS). International practice uses standardised categories for steels intended for hulls (А, В, D, Е, F) based on yield strength and impact energy at various temperatures.
Based on strength properties, steel to make vessel hulls is known as normal-strength steel with a minimum yield strength of 235 MPa (24 kgf/mm2) and higher-strength of three categories: with a guaranteed yield strength of 315 (32), 355 (36) and 390 (40) MPa (kgf/mm2).
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
