Steel is the raw material of certain shape, specification and performance made by steel casting, slab or steel according to the working pressure. The vast majority of steel products are produced and processed according to the working pressure, causing plastic deformation of the steel (billet, ingot, etc.) to be produced and processed. According to different steel production and processing temperatures, it can be divided into cold drawing and heat treatment.
Steel classified by type
There are many types of steel products, which can be generally divided into four categories: forming, plate, pipe and wire.
1. Section steel
There are many types of section steel, which is a solid bar steel with a certain cross-section shape and specification. According to their different cross section shapes, they can be divided into simple and complicated cross sections. The former includes round steel, square steel, galvanized flat steel, hexagonal steel and angle iron; The latter type includes rail, I-shaped steel, grain steel, window steel and profiled steel. Small round steel weighing cable with a diameter of 6.5-9.0Mm.
2. Thick steel plate
It is a kind of flat steel with very large thickness ratio and area. According to different thickness, it can be divided into three types: metal sheet (thickness ＜ 4mm), plate steel (thickness 4-25mm) and thick steel plate (thickness ＞ 25mm). Strip steel is included in thick steel plate.
3. Steel pipes
Steel pipe is a kind of strip steel with hollow cross section. According to their different cross section shapes, they can be divided into various special-shaped cross section steel pipes, such as round steel pipes, rectangular square pipes and hexagonal pipes. According to different manufacturing processes, it can be divided into seamless pipe and welded pipe steel pipe.
4. Steel wire
Steel wire is another cold drawn commodity of cable. Round steel wire, flat steel wire and triangular steel wire shall be divided according to different shapes. In addition to immediate application, steel wire is also used to produce wire ropes, steel lines and other products.