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Effect of humidity on corrosion of RMRS grade B marine steel plate:
The RMRS grade B marine steel plate surface is exposed to air continuously or intermittently in the marine atmosphere area, marine splash area and sea water tidal range area erosion will be affected by atmospheric humidity. The surface of RMRS grade B marine steel plate is covered with a layer of corrosive water film, which strengthens its corrosion. The surface of RMRS grade B marine steel plate can not only contact with the corrosive salt solution provided by the water film, but also directly contact with the oxygen in the atmosphere, which conforms to the electrochemical corrosion law in the electrolyte. Generally speaking, the higher the humidity in the marine environment, the more serious the corrosion of RMRS grade B marine steel plate.
Effect of temperature on corrosion of RMRS grade B marine steel plate:
For any chemical reaction, temperature is an important factor. Temperature not only directly affects the corrosion of RMRS grade B marine steel plate in the marine environment, but also indirectly affects the corrosion through other factors. In general chemical reactions, the reaction rate will increase to twice for every 10 °C increase in temperature. The corrosion rate varies with the temperature in different sea areas and seasons. The temperature also changes with the change of altitude and sea water depth. When the sea water reaches a certain depth, the temperature change is not obvious, and it is not the main factor affecting corrosion of RMRS grade B marine steel plate any more.
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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