Differences between steel Q345GNHL and q345b steelQ345GNHL weathering steel indicates that it consists of the Chinese pinyin letters and the number of yield points representing "yield point" and "high weather resistance", followed by the code "L". Q——The first letter of the Chinese pinyin of the word "Yu" at the yield point; GNH—The first letter of the Chinese pinyin of "Nai" and "Hou" respectively; 345——The number of the yield point, in MPa.
L——Code of high weathering steel whose main component contains chromium and nickel. It can be seen that Q345GNHL is a high weathering structural steel with a yield point of 345 MPa and a major component containing chromium and nickel. Q345B, Q——yield point, B——quality grade. The amount is not more than 0.45%. It should be pointed out that Q345GNHL steel is resistant to high temperature, but only resistant to atmospheric corrosion.
Q345GNHL weathering steel is a low-cost, low-alloy steel series between ordinary steel and stainless steel.It can be sustainable development and innovation after incorporating modern metallurgical new mechanisms, new technologies and new processes.It is the world's leading level of super steel technology. One of a series of steel types.
Q345GNHL corten plate is widely used in the manufacture of structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil platforms and boilers, chemical and petroleum equipment containing hydrogen sulfide corrosive media.
Q345GNHL weatherability steel's weldability, production process, and weld quality and dimensional accuracy guarantee.
