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In the rolling process of ASTM A131 DH36 bulb flat bar, the reduction ratio of ball head and web is usually inconsistent. In the same cross-section, the ball head will be subjected to the tension of the web, resulting in a certain additional tensile strain.
When the rolling process of ASTM A131 DH36 bulb flat bar is over, the tension effect of web on the ball ends disappears, and the tensile strain of the ball ends will recover to a certain extent, resulting in the shrinkage deformation of the ball ends and the bending deformation towards the web. At the same time, due to the influence of pass design and vertical roll, the outlet speed of ball head is less than that of web, which aggravates the bending deformation towards web.
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
