Cold formed steel profiles are the main material for making light-weight steel structures, which are made of cold-formed metal plates or steel strips. Its wall thickness can not only be made very thin, but also greatly simplifies the production process and improves production efficiency. It can produce various profiles with uniform wall thickness but complex cross-sectional shapes and cold-formed steel with different materials that are difficult to produce by general hot rolling methods. In addition to being used in various building structures, cold-formed steel is also widely used in vehicle manufacturing and agricultural machinery manufacturing. There are many kinds of cold-formed steel, which are divided into open, semi-closed and closed according to the section. According to the shape, there are cold-formed channel steel, angle steel, Z-shaped steel, square tube, rectangular tube, special-shaped tube, rolling shutter door, etc. In the latest standard 6B/T 6725-2008, the yield strength grade classification of cold-formed steel products, fine-grained steel, and specific assessment indicators for the mechanical properties of products have been added.
Cold-formed steel is made of ordinary carbon structural steel, high-quality carbon structural steel, low-alloy structural steel plate or steel strip. Cold-formed steel is an economical cross-section steel, and it is also a high-efficiency and energy-saving material. It is a new type of steel with strong vitality. It is widely used in various fields of the national economy. Containers, steel formwork and scaffolding, railway vehicles, ships and bridges, steel sheet piles, transmission towers, and other 10 categories.
In the production of cold-formed hollow square (rectangular) section steel, there are two different production and forming processes. One is to form a circle first and then become a square or rectangle; the other is to directly form a square or rectangle.
ZTZG has over 20 years of cold roll forming technology R&D and manufacturing capabilities, mainly engaged in Multi-Functional Cold Rolled Section Steel/Welded Pipe Production Line, H.F. Straight Welded Pipe Production Line, Stainless Steel Pipe Production Line, and Other Auxiliary Equipment. With its state-of-the-art and excellent product quality, it serves worldwide.
Post time: Mar-10-2023
