Cold rolling is rolling under recrystallization, but it is generally understood as rolling using normal temperature rolling materials. Since cold-rolled coils are not heated during the production process, there are no defects such as pitting and scale that often occur in hot rolling, and the surface quality is good and the finish is high. Moreover, the dimensional accuracy of cold-rolled products is high, and the performance and structure of the products can meet some special requirements for use, such as electromagnetic properties and deep drawing properties.
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Seamless steel pipes are round, square, or rectangular steel tubes with a hollow section and no joints. They are made from steel ingots or solid tube blanks through a perforation process to create capillaries. These capillaries are then hot-rolled, cold-rolled, or cold-drawn to form seamless steel pipes. The seamless steel pipe\'s hollow section makes it suitable for various applications, especially as a pipeline for fluid conveyance. Compared to solid steel, such as round steel, seamless steel pipes have a lighter weight while maintaining equivalent bending and torsional strength. This characteristic makes them an economical choice for structural parts and mechanical components. They are widely used in various industries, including the manufacturing of oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in construction.
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Seamless steel pipes are round, square, or rectangular steel tubes with a hollow section and no joints. They are made from steel ingots or solid tube blanks through a perforation process to create capillaries. These capillaries are then hot-rolled, cold-rolled, or cold-drawn to form seamless steel pipes. The seamless steel pipe's hollow section makes it suitable for various applications, especially as a pipeline for fluid conveyance. Compared to solid steel, such as round steel, seamless steel pipes have a lighter weight while maintaining equivalent bending and torsional strength. This characteristic makes them an economical choice for structural parts and mechanical components. They are widely used in various industries, including the manufacturing of oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in construction.
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Seamless steel pipes are round, square, or rectangular steel tubes with a hollow section and no joints. They are made from steel ingots or solid tube blanks through a perforation process to create capillaries. These capillaries are then hot-rolled, cold-rolled, or cold-drawn to form seamless steel pipes. The seamless steel pipe\'s hollow section makes it suitable for various applications, especially as a pipeline for fluid conveyance. Compared to solid steel, such as round steel, seamless steel pipes have a lighter weight while maintaining equivalent bending and torsional strength. This characteristic makes them an economical choice for structural parts and mechanical components. They are widely used in various industries, including the manufacturing of oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in construction.
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Welded steel pipe, also known as welded pipe, is produced by forming a steel plate or strip through crimping and welding. The production process of welded steel pipes is relatively simple, resulting in high production efficiency and a wide range of specifications. It requires less investment in equipment compared to seamless steel pipes. However, it is important to note that the general strength of welded steel pipes is lower than that of seamless steel pipes.
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Welded steel pipe, also known as welded pipe, is produced by forming a steel plate or strip through crimping and welding. The production process of welded steel pipes is relatively simple, resulting in high production efficiency and a wide range of specifications. It requires less investment in equipment compared to seamless steel pipes. However, it is important to note that the general strength of welded steel pipes is lower than that of seamless steel pipes.
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Welded steel pipe, also known as welded pipe, is produced by forming a steel plate or strip through crimping and welding. The production process of welded steel pipes is relatively simple, resulting in high production efficiency and a wide range of specifications. It requires less investment in equipment compared to seamless steel pipes. However, it is important to note that the general strength of welded steel pipes is lower than that of seamless steel pipes.
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Rebar, commonly known as hot rolled ribbed bar, is a type of steel bar. The grade of ordinary hot rolled steel bar is determined by its minimum yield point and is denoted by HRB (Hot Rolled Bar) followed by a numerical grade. The letters H, R, and B represent hot rolled, ribbed, and bars respectively. Rebar can be classified into different categories based on its strength, such as HRB300E, HRB400E, HRB500E, HRB600E, etc. The thread specification range of rebar is generally 6-50mm. We usually involve more are 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm and so on. National allowable deviation :6-12mm deviation in ±7%, 14-20mm deviation in ±5%, 22-50mm deviation in ±4%. Generally, the fixed length of rebar is 9m and 12m, among which 9m long thread is mainly used for normal road construction and 12m long thread is mainly used for bridge construction.
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Carbon steel bar is a general-purpose steel with excellent formability and weldability. There are two types of round steel bars, hot-rolled and cold-rolled. Hot rolled round bars are often used in applications like construction where finish and exact dimensions are not a priority. In contrast, cold rolled round bars are used for applications with excellent surface finish and precise dimensions.
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Carbon steel square bar is a highly durable and versatile construction material known for its strength and affordability. It features a grainy finish and is characterized by square-shaped cross-sections with rounded corners. The strength of carbon steel square bar makes it suitable for various applications in manufacturing and construction. It is widely used in the fabrication of structural components, machinery parts, supports, frames, and other load-bearing structures. The versatility of carbon steel square bar allows it to be easily machined, welded, and formed into desired shapes, further expanding its range of applications. Due to its excellent mechanical properties and cost-effectiveness, carbon steel square bar is a popular choice for industries across the globe. It provides a reliable and sturdy material option for diverse construction and manufacturing projects.
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Wire rod refers to rolled steel with a circular cross-section, typically ranging in diameter from 4mm to 16mm. It is commonly available in the form of coils or bundles. Wire rods are produced using various materials such as steel, aluminum, copper, and non-ferrous alloys. There are numerous types and varieties of wire rods available. Carbon steel wire rods are categorized into two main types: medium and low carbon steel wire rods, which are often referred to as soft wire rods, and medium and high carbon steel wire rods, which are commonly known as hard wire rods.
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Sheet piles are structural elements that consist of interlocking segments with concave profiles (grooves) forming alternating concave and convex walls. These sections are commonly manufactured using steel or other metals, and the presence of grooves enhances their resistance to bending. Steel sheet piles are categorized into three main types: straight steel sheet piles, U-shaped steel sheet piles, and Z-shaped steel sheet piles. Each type has its own unique design and structural characteristics, allowing them to be utilized in different applications and soil conditions.
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