Our present invention relates to a method of producing cold-rolled steel strip of stainless-steel and metal strip, especially of titanium alloys. The invention also relates to a processing line for producing the cold-rolled steel or titanium-alloy strip. Hot-rolled steel strip, hot strip of stainless steel or titanium alloy and the like notoriously have relatively difficult to remove scale layers adherent to them and of varying hardness. As a result, the strip surface is generally nonhomogeneous. To facilitate working of the steel strip by cold rolling, such steel strip is generally initially annealed.
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- Wide electrical steel tape and sheet production volume in Japan 2012-2018
- Rolling (metalworking)
- Hot-rolled steel coils
- Main Production Lines
- Cold-rolled narrow steel tape production volume in Japan 2012-2018
- Cold-rolled wide steel tape production volume in Japan 2012-2018
- Cold rolled coil, strip and sheet
Wide electrical steel tape and sheet production volume in Japan 2012-2018VIDEO ON THE TOPIC: Aluminum strip sheet band hot roll machine equipment casting processing forming platevbv
Hot-rolled coils HRC are a type of sheet product resembling a wound steel strip and are produced at hot-rolling mills. These products are widely used for construction, the machine industry, car manufacturing, the production of general-purpose, construction, oil and gas and special-purpose pipes, and as a work-piece for the further production of cold-rolled products. You can order hot-rolled steel coils from the manufacturer by submitting a request on the website. To do this, go to the catalog and specify the desired product parameters.
You can also order hot-rolled steel coils or get advice and find out prices for structural and general-purpose steel at Company offices around the world. Hot-rolled coil is used to manufacture steel structures, pipes and closed sections, as well as to enclose structures and facade elements. Shaped and round pipes are mainly used in this industry for:.
Support steel structures and frameworks of industrial and civil facilities. Protective enclosures for various utility lines wires and cables, plastic or other channels. Support of main pipelines, water lines and heat supply networks, bridges and trestles. Sewerage lines, flue ducts and ventilation systems.
For road construction — poles, guides, drainage elements, lighting columns and crash barriers. Steel structures for use in sports grounds and children's playgrounds, to erect fences and partitions, and in other solutions. The key requirements of this segment to this kind of rolled product include minimum dimension tolerances, heavy coil weight, weldability, high strength and toughness, crack resistance also at negative temperatures and, for some specific spheres, exterior resistance.
Recently, there has been a trend of cold-rolled steel products being replaced with less expensive, thin hot-rolled products in the construction segment. However, high-strength rolled product types are now widely being used to reduce the product weight. Large-diameter pipes from HRC steel are produced with spiral seams. Such technology allows to produce pipes with a diameter of up to 2, mm for the following segments:. Main pipelines for transportation of oil, gas and other substances.
Process pipelines, heat supply networks, water lines and sewerage lines. Supports for industrial facilities, bridges and trestles, elements of onshore and offshore platforms. For these purposes, the hot-rolled steel sheet needs to be in coils weighing up to 32 tonnes, which makes it possible to increase equipment capacity and yield. The HRC should have such properties as good weldability, high strength and toughness, and crack resistance also at negative temperatures.
Given the increased aggressiveness of transported substances, demand is growing for rolled steel with guaranteed resistance to hydrogen sulphide media HIC, SSC. A significant amount of global HRC steel output is used as a feedstock to make cold-rolled steel products. Key requirements for HRC include a narrow dimensional tolerance range, plasticity, high surface quality, as well as the absence of rust, external and internal defects. Hot-rolled coils are subject to acid pickling to clean their surfaces from rust and other contaminants prior to cold rolling.
Hot-rolled steel in coils is widely used in the following segments of the machine industry:. Machine tool engineering and heavy engineering bodies and components of machine tools, mining, road and handling machinery.
Automotive engineering bodies of cars and trucks, elements of lining for freight wagons, tanks, booms of truck-mounted cranes, etc.
To manufacture agricultural machinery components ploughs, blades, harrows, parts of seeding machines and bodies of agricultural machinery. More extensive use of high-strength, low-alloy rolled steel dual-phase steels, TMCP steel, etc can reduce the weight of machinery and equipment and, thus, increase their lifting carrying capacity and operation efficiency. Hot-rolled, normalised rolled, thermomechanical rolled also pickled or pickled and oiled. The end consumers of service metal centres are machine engineering enterprises, shipbuilders, wind generation plants, boiler equipment manufacturers, etc.
Due to the varying scope of applications for steel products, service metal centres consume a wide range of steel product grades and sizes. The HRC should have extremely precise size dimensions, uniform mechanical characteristics and low internal stresses for laser and plasma cutting at fully automated plants. Hot-rolled steel coils are used in various industries, and each industry requires certain specific quality parameters of finished products that are grouped into standards. The main standards for technical specifications that apply to HRC production are:.
Hot-rolled coil wide strip products are produced by semi-continuous or continuous hot-rolling mills, which can also be a part of compact strip production plants. Continuously cast or rolled slabs made of carbon, low-alloy and alloy steel grades are used as a semi-finished product to make steel coils.
The HRC production process includes the following stages:. Heating the slab for rolling in a reheating furnace the heating temperature is regulated depending on the steel grade and the selected process conditions.
Hydraulic descaler to remove scale from the surface of the feedstock. Rolling in roughing and finishing stands with intermediate rewinding or without rewinding of the semi-finished strip in a coilbox unit. Finishing the hot-rolled steel coils, ie cutting, acceptance, packaging, labelling, etc. Metinvest enterprises produce hot-rolled coils with a thickness of 1. Products are available both as hot-rolled and with special in-line treatment including controlled rolling, thermomechanical rolling and normalised rolling.
Steel plates. High strength steel Structural and general use steel Boiler and pressure vessel steel Machine building steel Steel for large diameter pipes, offshore structures and energy applications Shipbuilding plate. Long products. Electric-Welded pipes and profiles. Electric-Welded pipes and profiles Roll-formed sections. Semi-finished products, chemical and by-products. Steel sheets. Cold-rolled steel sheets Hot-rolled steel sheets Galvanised sheets. Steel coils. Colour-coated rolled steel Cold-rolled coils Hot-rolled steel coils Galvanised steel coils.
Services and solutions The nearest representative office Downloads. Careers Responsibility Suppliers Media Operations. Logistics and supply. Metinvest Shipping. Service and engineering. Hot-rolled steel coils. Buy hot-rolled steel coils from the manufacturer You can order hot-rolled steel coils from the manufacturer by submitting a request on the website. Go to catalog. Buy from a dealer or metal center You can also order hot-rolled steel coils or get advice and find out prices for structural and general-purpose steel at Company offices around the world.
Contact our representatives. Hot-rolled steel coils application. Shaped and round pipes are mainly used in this industry for: Support steel structures and frameworks of industrial and civil facilities Protective enclosures for various utility lines wires and cables, plastic or other channels Support of main pipelines, water lines and heat supply networks, bridges and trestles Sewerage lines, flue ducts and ventilation systems For road construction — poles, guides, drainage elements, lighting columns and crash barriers Steel structures for use in sports grounds and children's playgrounds, to erect fences and partitions, and in other solutions The key requirements of this segment to this kind of rolled product include minimum dimension tolerances, heavy coil weight, weldability, high strength and toughness, crack resistance also at negative temperatures and, for some specific spheres, exterior resistance.
Sizes in high demand: Thickness, mm Width, mm Inner diameter, mm 1. Such technology allows to produce pipes with a diameter of up to 2, mm for the following segments: Main pipelines for transportation of oil, gas and other substances Process pipelines, heat supply networks, water lines and sewerage lines Supports for industrial facilities, bridges and trestles, elements of onshore and offshore platforms For these purposes, the hot-rolled steel sheet needs to be in coils weighing up to 32 tonnes, which makes it possible to increase equipment capacity and yield.
Sizes in high demand: Thickness, mm Width, mm Inner diameter, mm 3. Hot-rolled steel coils classification. Production of hot-rolled coils. Get in touch Find the nearest office Subscribe to our newsletter.
Stallard [5 7 ABSTRACT A process for manufacturing a cold-rolled high strength steel sheet particularly suitable for fabrication of car body comprising the steps of making a steel comprising 0. More particularly, the present invention relates to a process for manufacturing a high strength cold-rolled steel sheet particularly suitable for fabrication of car body. The steel sheet used usually for fabrication of passenger car body has generally a thickness of 3. The social constantly increasing requirement for improving the security of cars obliges the manufacturer to enhance strength of the car body. For this purpose, a thicker steel sheet may be used or more members may be used, but any of such measures will result in the increase of weight of the car body, which is adverse to the desirable reduction of weight of the car body.
In metalworking , rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness and to make the thickness uniform. The concept is similar to the rolling of dough. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature, then the process is known as hot rolling.
Hot-rolled steel coils
Buying the correct type of steel will save you both time and money, and ensure you are offering the best quality products to your customers. Steel can be processed using a variety of machinery and at a variety of temperatures. One of these processes involves sending the steel through a pair of rollers that shapes the metal to a specific thickness. When comparing cold rolled steel to hot rolled steel, the difference begins with the temperature at which the metal is processed. Cold rolling is done when the metal is below its recrystallization temperature, which is the temperature at which the steel grain structure can be altered.
Industry-specific and extensively researched technical data partially from exclusive partnerships. A paid subscription is required for full access. You need a Premium Account for unlimited access. Additional Information. Show source. Show sources information Show publisher information. According to the source, narrow strips are defined as steel strips with less than mm in width.
Main Production Lines
Contact us to get more information about our products. Subscribe for the latest product news. A wide selection for a variety of use; our cold rolled coil, strip and sheet products are available in both heat- and corrosion resistant forms.
This application is a continuation, of now abandoned application Ser. This invention relates to a method and apparatus for manufacturing cold-rolled steel strip and more particularly to a method and apparatus for removing the scale formed on the surface of hot-rolled steel strip that is used as the breakdown in the cold reduction process. In the cold reduction of hot-rolled coils, the scale formed on the surface of hot-rolled coils which serve as the starting material must be removed before they are subjected to cold reduction in order to obtain finished products of satisfactory surface quality. A popularly employed descaling practice is pickling by immersion in such acidic solutions as hydrochloric and sulphuric acids. Ideas of continuously performing pickling and cold reduction have already been disclosed in Japanese Patent Publication No. Also already known is the direct linkage of cold reduction and continuous annealing processes that are carried out continuously. Still, a practice to continuously perform pickling, cold reduction and continuous annealing over a series of directly connected lines has been non-existent. In order to perform continuous annealing, cold reduction and continuous annealing in succession using conventionally known means, a pickling tank according to Japanese Patent Publication No. But this combination presents the following problem. Depending on the type of steel processed, the pickling rate of a coil can vary from one spot to another, such as in its leading end, middle and tail end. Accordingly, the leading and tail ends, which are usually slower to get pickled, cannot be pickled to the same extent as the middle portion unless they are passed through a pickling tank at a slower speed.
Cold-rolled narrow steel tape production volume in Japan 2012-2018
Antimony by John A Rathjen. Asbestos by Robert A Clifton. Barite by David E Morse. Bromine by Phyllis A Lyday. Cement by James T Dikeou. Cesium by Robert J Bascle.
Cold-rolled wide steel tape production volume in Japan 2012-2018
Industry-specific and extensively researched technical data partially from exclusive partnerships. A paid subscription is required for full access. You need a Premium Account for unlimited access. Additional Information. Show source. Show sources information Show publisher information. According to the source, wide strips are defined as steel strips with mm and more in width. Values have been rounded. Data prior to come from previous reports.
Cold rolled coil, strip and sheet
Ferrous materials have made a major contribution to the development of modern technology; they span a tremendous range of properties and applications. Reflecting the industrial practices, the information provided here offers easy access to reliable processes involved in the manufacturing of Steel products like Steel Bars, Wires, Tubes, Pipes, Sheets etc that proves to be the backbone of construction and automobile industries booming worldwide. The work closes the gap in the treatment of steel and cast iron.
Industry-specific and extensively researched technical data partially from exclusive partnerships. A paid subscription is required for full access.
This is a byproduct from the acid regeneration plant, where in the spent acid from the pickling line is processed to recover and reuse the acid. Iron oxide is used in the soft-magnet, paint, and cement manufacturing industries. The typical specifications of this product are as follows: This composition may vary depending on the processing conditions. Hot Rolled Pickled Trimming Scrap Edge trimming of the hot-rolled steel coils is essential to eliminate the negative effect of microcracks that develop during the hot-rolling process on the cold-rolling operation.