Low Alloy Structural Steel Sheet
Low alloy structural steel sheet is a kind of steel which is made up of alloying elements such as manganese, chromium, vanadium, molybdenum or nickel. Generally, it is used in construction of welded, riveted and bolted structures of horses, bridges, ships and buildings. Low alloy structural steel sheet is mainly produced according to GB5067-85 standard and property1-2008 standard.
Low alloy structural steel sheet has low carbon content compared with ordinary carbon structural steel sheet. It can work in higher stress environment and can be used to increase the strength of the workpiece, but also to reduce the carbon and alloy content of the material. Thus, it can reduce the cost and maintenance cost of the structure.
Low alloy structural steel sheet is mainly used in bridge building and engineering structures, construction industry and manufacturing various machined parts and other structural components. It can be hot rolled, cold rolled and finished steel strip. For each thickness, the simple is hot-rolled strip, thin is cold rolled strip.
Low alloy structural steel sheet is mainly used for manufacturing construction and engineering machinery and parts, such as pressure vessels, boats, bridges, vehicles and so on. This type of steel is mainly produced according to GB5067-85 or property1-2008 standard. According to different national standards, the chemical composition and mechanical properties of low alloy structural steel sheet may also be different.
Low alloy structural steel sheet has low carbon content, and its carbon content is usually less than 0.20%. Once the carbon content is higher than 0.20%, it will increase the stiffness and brittleness of the material, and reduce its welding performance. Low alloy structural steel sheet is usually produced by hot rolling, according to different purpose and application, it can also be cold rolled.
In order to improve the performance of low alloy structural steel sheet, the alloy elements need to be added to the steel to improve its hardenability and mechanical properties. Common alloy elements that can be added to low alloy structural steel include chromium, molybdenum, nickel, vanadium, manganese, silicon, titanium and others.
Low alloy structural steel sheet has excellent welding performance and no welding stress due to its low carbon content. It has excellent low temperature toughness and weldability and can be used in all kinds of low temperature welding products or structures. Low alloy structural steel sheet is also resistant to atmospheric corrosion and rust.
To sum up, low alloy structural steel sheet is widely used in the construction and engineering industry due to its excellent welding performance, low temperature toughness and high strength. In addition, it can also be used to reduce the carbon and alloy content of the material, thus reducing the cost and maintenance cost of the structure.
