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Q345qD is bridge steel. Q345qD can require Z-direction performance, Q345qD-Z15, Q345qD-Z25 and Q345qD-Z35. Q345qD bridge plate requires high strength, toughness and bearing the load and impact of locomotive and vehicle, as well as good fatigue resistance, certain low-temperature toughness and atmospheric corrosion resistance. The Q345qD steel for bolted welded bridge should also have good welding performance and low notch sensitivity.
Welding performance of Q345qD-Z25 bridge plate: Q345qD-Z25 bridge plate has good fatigue resistance. At the same time, the elastic work accounts for a small proportion in the impact energy of butt weld of Q345qD-Z25 bridge plate. It has high sensitivity to temperature, and the Q345qD-Z25 steel plate has good welding performance.
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
