What is the application field of Q355GNH plate?
Q355GNH steel plate is mainly used in the structure of vehicles, containers, buildings, towers or other structural parts. Compared with welded weathering steel, it has better atmoSPHE
ric corrosion resistance. Q355GNH available steel plates thickness ≤100mm. Katalor Industry also can produce and export Q355GNH steel sheets, Q355GNH steel strips and steel angles. Q355GNH steel plate
can also be used to make structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production channels, and containers containing hydrogen sulfide corrosive media in chemical petroleum equipment. Compared with stainless steel, weathering steel requires only a small amount of alloying elements, such as phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium, etc. The total amount of alloying elements is only a few percent, unlike stainless steel, which can reach a percentage. More than a dozen, so the price is relatively low.
Atmospheric corrosion resistance of Q355GNH plate
When the air contains some special chemical substances, or the structural parts have been in contact with water for a long time, or have been exposed to humid air, or used in a marine climate, it is recommended to use Q355GNH plate weathering steel. It is necessary to remove the oxide scale on the surface of the product before painting. Under the same conditions, the corrosion sensitivity of atmospheric corrosion resistant steel after painting is less than that of general structural steel.
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