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The main reason for the bending deformation of DH36 bulb flat steel is the inconsistency of reduction rate in rolling process and the uneven temperature field in cooling process.
The inconsistency of reduction rate during rolling is contrary to the bending deformation trend of DH36 bulb flat steel caused by uneven temperature field during cooling. The bending deformation of DH36 bulb flat steel during cooling after rolling is the result of the interaction of the above two reasons.
If the shrinkage effect caused by the rapid cooling rate of the web part is greater than that caused by the recovery of the tensile strain of the ball head part, the bending deformation of the DH36 bulb flat steel will occur in the direction of the ball head, whereas the bending deformation of the DH36 bulb flat steel will occur in the direction of the 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
