Hot- rolled wire rod
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Wire is 5-22 mm diameter hot rolled round steel, or rather the cross section of special-shaped steel. Due to the delivery of the goods in the form of wire rod, so it is also known as wire rod. Wire cross-section circumference is small, common specifications for 5-13 mm diameter. According to the different can be divided into the high speed wire rod mill (line) and ordinary wire line (at) two kinds.
classification
Generally made from ordinary carbon steel and high quality carbon steel wire rod. According to the directory and USES different steel distribution, mild steel wire including ordinary hot rolled plate, the high quality carbon steel wire rod, carbon electrode wire rod, conditioning threaded rod, wire rope with wire rod, piano wire with wire rod and stainless steel wire rod, etc.
1. Ordinary low carbon steel hot rolled plate (GB701-65), normal low carbon steel hot rolled plate by low carbon ordinary carbon structural steel or the carbon structural steel rolling of low yield point, is dosage the biggest, the most widely used in varieties of wire rod, also known as the cord.
Main use: general line is mainly used in construction of reinforced concrete structure for reinforcement, can also be made steel wire, cold drawn to pull for strapping, etc.
2. Ordinary no twist accused of cold, hot rolled low carbon steel wire rod (ZBH4403-88), no twist accused of cold, hot-rolled wire rod by no twist to control cooling after rolling in high speed wire-rod mill, material is the same as the general line, but no twist accused of cold, hot-rolled wire rod with high dimensional accuracy, good surface quality and higher mechanical properties, etc.
Main application: no twist accuracy of cold, hot-rolled wire rod size control points A, B, C level 3. A, B, C level precision is applicable to drawing, construction, packaging and electrode and other purposes, B, C level accuracy is suitable for processing into bolts, screws and nuts, etc.
3. Quality carbon steel wire rod (GB4354-84), high quality carbon steel wire rod is made of high quality carbon structural steel rolling. Is one dosage larger varieties of wire rod variety.
Main application: high quality carbon steel wire rod is mainly used for processing and manufacturing carbon spring steel wire, oil quenching tempering carbon spring steel wire, prestressed steel wire, high strength and high quality carbon structural steel wire, galvanized steel wire, galvanized wire rope, etc.
4. Quality carbon steel no twist accused of cold, hot-rolled wire rod (ZBH44002-88), no twist accused of cold, hot-rolled wire rod quality carbon steel by the high-speed wire mill rolling with no twist, disposed of by controlled cooling after rolling. Compared with the high quality carbon steel wire rod, high dimensional accuracy, good surface quality, have higher mechanical properties.
Main USES: the main purpose is the same as the high quality carbon steel wire rod. Often used in the manufacture of carbon spring steel wire, oil quenching tempering carbon spring steel wire, prestressed steel wire, high quality carbon structural steel wire, galvanized steel wire, etc.
5. Wire rope with wire rod (YB349-64), wire rope with wire rod is one of the high quality carbon structural steel hot rolled plate.
Main application: wire rope with wire rod available 35 and 40, 45, 55, 60, 65, 70, 75, 80 and 85 steel grade high quality carbon structural steel manufacture. Chemical composition meet GB699 (high quality carbon structural steel technical conditions).
6. Wire rope with no twist accused of cold, hot-rolled wire rod (ZBH44004-88), wire rope with no twist charged with hot and cold rolled plate and with high quality carbon structural steel, in the absence of torsion wire mill rolling, controlled cooling after rolling. This rolling of wire rod, high dimensional accuracy, good surface quality, superior mechanical properties.
Main application: mainly used for drawing steel and steel strand steel wire rope.
7. Carbon electrode steel wire rod (GB3429-82), carbon electrode made by high quality carbon structural steel hot rolled low carbon steel rod.
Main application: mainly used in the manufacture of manual arc welding welding core.
8. No twist accused of cold, hot rolled carbon electrode steel wire rod (ZBH44005-88), no twist accused of cold, hot rolled carbon electrode steel wire rod is rolling on blockade twist wire mill, and made controlled cooling after rolling. Its high dimensional accuracy, good surface quality, superior performance, is a kind of high quality welding rod steel wire rod.
Main application: mainly used in the manufacture of a coated electrode steel reinforced carbon steel hot rolled plate.
9. Alloy structural steel hot-rolled wire rod (GB3077-82), alloy structural steel hot-rolled wire rod by alloy structural steel rolling material. Alloy structural steel with a total of 26 steel group, the 78 steel grades. Each manufacturer according to buyer's requirements and different USES to choose brand for production.
Main use: alloy hot rolled wire rod structure is mainly used for drawing wire, metal products and components.
10. Carbon tool steel hot-rolled wire rod (GB1298-86), carbon tool steel by high quality or high quality high carbon steel rolling. Processing performance and wear-resisting performance is good, the price is cheap.
Main USES: mainly used in drawn steel ratio and making tools, etc.
11. Alloy tool steel hot-rolled wire rod (GB1299-77)
Alloy tool steels is in chrome is joined on the matrix carbon tool steel, tungsten, molybdenum, vanadium, silicon, manganese, nickel and cobalt alloy elements and tempered steel. Compared with the carbon tool steel. It has good hardenability, small heat cracking tendency, the characteristics of high wear resistance and heat resistance. Alloy tool steel hot-rolled wire rod by 33 five steel group steel grade of alloy tool steel material and rolled. Respectively by the dalian steel, benxi steel mills and steel mills and other unit production in shaanxi province.
Main use: is suitable for measuring tool, cutting tool and cold and hot die, shock resistant, etc.
12. Spring steel hot-rolled wire rod (GB1222-84)
Spring steel is used in the manufacture of springs or other steel grade of elastic element. Springs and elastic element mainly USES the elastic degeneration absorb and store energy, alleviate vibration, shock, or make parts to complete some action for the purpose. Since it is in shock, vibration or even under the working conditions of periodic alternating stress for a long time, so the spring steel with high yield strength, especially must have higher showed (the ratio of yield strength to tensile strength) and fatigue strength of high elastic, high resistance to high temperature and corrosion resistant performance. The surface of spring steel shall also have the good quality.
Spring steel with carbon spring steel and alloy spring steel, a total of 17 brands.
Main use: spring steel hot-rolled wire rod is mainly used in the production of various USES of helical spring.
13. Ball bearing steel hot-rolled wire rod (YB9-68), referred to as "bearing steel, ball bearing steel is used in the manufacture of various types of rolling bearing ring (sleeve) and steel rolling body (the ball). Due to the particularity of its USES for bearing steel has high and even hardness and wear resistance, high elasticity and fatigue strength. Enough toughness and hardenability, at the same time in the atmospheric environment or lubricant has certain corrosion resistant ability. Some special use of the rolling bearing also require high temperature resistance, corrosion resistance, nonmagnetic, ultra-low temperature, high precision, long life and other performance. So the choice of bearing steel and steel than ordinary steel strict quality.
Bearing steel is usually refers to the high carbon chromium steel, there are also carburizing bearing steel, high carbon chromium stainless bearing steel. Commonly used in rolling bearing steel hot-rolled wire rod steel grade five.
Main use: ball bearing steel hot-rolled wire rod is mainly used in the manufacture of bearing steel ball (ball), etc.
14. Stainless steel wire rod (GB4356-84), stainless steel wire rod was organized by a variety of brand different size of stainless steel hot rolling.
Main use: stainless steel wire rod is mainly used in the manufacture of stainless steel wire, stainless spring steel wire, stainless wire upsetting and stainless steel wire. According to the main industrial USES for to distinguish, stainless steel wire rod are stainless steel and stainless acid-resistant steel wire rod.
15. Welding of stainless steel wire rod (GB4241-84), welding of stainless steel wire rod and stainless steel wire rod is different in chemical composition. In order to guarantee its excellent welding performance, improve the quality of weld, welding of stainless steel wire rod in composition marked characteristics are low carbon, phosphorus, sulfur, less toxic impurities, such as nickel, chromium content is higher.
Main application: mainly used in the manufacture of welding electrode wire and steel core.
The production process
The editor
Commonly used wire line production.
A, through the step by step the billet heating furnace heated to above 1100 degrees Celsius;
Two, heating the billet, after high pressure water descaling;
Three, into the roughing mill rolling, roughing mill for the strip plant;
Four, after roughing rolled piece into the water for cooling, in order to control its internal microstructure;
Five, leave water cooling period after entering the mill and finishing mill for further rolling;
Sixth, after finishing the shape of rolled piece formed by spinning machine spit out volume;
Seven, volume of wire forward cooled in the air cooling section;
Eight, at the end of the air cooling section, wire rod by coil unit into drum shape;
After nine, with drum shape of baling wire into the baling machine;
Ten, into the shipping department.
- Q: What are the different types of steel wire rod cooling methods?
- There are several different types of steel wire rod cooling methods that are commonly used in the industry. These methods aim to efficiently cool down the wire rod after it has been processed through the hot rolling mill. The cooling methods can vary depending on the desired properties and specifications of the wire rod. One common cooling method is air cooling. In this method, the wire rod is exposed to ambient air, allowing natural convection to dissipate the heat. This is a cost-effective and energy-efficient method, however, it may not be suitable for all applications as it might not provide the desired cooling rate or uniformity. Another cooling method is water cooling, which involves spraying water onto the wire rod to rapidly cool it down. This method provides a high cooling rate, ensuring quick solidification of the steel and preventing the formation of unwanted structures. Water cooling is widely used in high-speed wire rod mills where a fast cooling rate is necessary to achieve the desired mechanical properties. Oil quenching is another cooling method used for specific applications where the wire rod needs to achieve specific hardness or strength. In this method, the wire rod is immersed in oil, such as mineral oil or polymer-based oil, to rapidly cool it down. Oil quenching allows for controlled cooling rates, resulting in the desired microstructure and mechanical properties. Some advanced cooling methods involve the use of innovative technologies such as forced air cooling or water mist cooling. Forced air cooling utilizes high-velocity air jets to rapidly cool the wire rod, while water mist cooling employs a fine mist of water droplets to achieve efficient cooling. These methods offer enhanced cooling rates and can be tailored to specific requirements. In summary, the different types of steel wire rod cooling methods include air cooling, water cooling, oil quenching, forced air cooling, and water mist cooling. Each method has its advantages and is chosen based on the desired properties and specifications of the wire rod.
- Q: What are the common material specifications for steel wire rod?
- The material specifications for steel wire rod are typically determined by the specific requirements of the industry or application in which it will be used. However, there are some general material specifications commonly found in steel wire rod. One crucial aspect to consider is the chemical composition of the steel wire rod. It is usually made from carbon steel, which contains varying amounts of carbon and other alloying elements like manganese, silicon, and sulfur. The exact composition depends on the desired mechanical properties and intended application. Another important factor is the size and shape of the steel wire rod. Typically, it comes in coils with diameters ranging from a few millimeters to several centimeters. The specific size and shape depend on the end product's requirements, including strength, flexibility, and conductivity. The mechanical properties of the steel wire rod are also specified, including tensile strength, yield strength, and elongation. These properties determine the wire rod's ability to withstand forces and deformations without breaking. Achieving these properties requires specific manufacturing processes and heat treatments. Surface quality requirements, such as smoothness, cleanliness, and absence of defects, are other common material specifications for steel wire rod. Additionally, certain industries or applications may have specific requirements for corrosion resistance, electrical conductivity, or thermal conductivity. It's important to note that material specifications can vary significantly depending on the industry or application. Therefore, carefully reviewing the requirements and consulting industry standards or experts is crucial to ensure the appropriate material specifications are met for the intended use of the steel wire rod.
- Q: How is steel wire rod used in the manufacturing of reinforcing bars?
- Steel wire rod is used in the manufacturing of reinforcing bars by being stretched and formed into the desired diameter and shape. It is then commonly used as the core material within reinforced concrete structures to provide strength and stability, enhancing the load-bearing capacity and durability of the final product.
- Q: How is steel wire rod used in the manufacturing of electrical cables?
- Steel wire rod is commonly used in the manufacturing of electrical cables due to its excellent strength and conductivity properties. The wire rod is typically drawn through a series of dies to reduce its diameter and increase its length. This process, known as wire drawing, results in a fine, high-quality wire that can be used as a conductor in electrical cables. The steel wire rod serves as the core conductor of the cable, providing a path for the electrical current to flow. Its high conductivity ensures minimal power loss during transmission, making it an ideal choice for electrical applications. Additionally, the strength of steel wire rod allows for the cable to withstand mechanical stress and strain, ensuring its durability and longevity. In the manufacturing process, the steel wire rod is often coated with a layer of insulation material, such as PVC or polyethylene, to provide electrical insulation and protect against moisture and other environmental factors. This insulation layer prevents short circuits and ensures the safe and efficient transmission of electricity. Furthermore, steel wire rod is also used in the armor layer of certain types of electrical cables. By wrapping the wire rod around the core conductor, it provides additional mechanical protection to the cable, making it more resistant to bending, crushing, and external impacts. Overall, steel wire rod plays a crucial role in the manufacturing of electrical cables by providing a strong and conductive core conductor. Its use ensures the safe and reliable transmission of electricity while maintaining the structural integrity of the cable.
- Q: How is the global steel wire rod market expected to grow?
- The global steel wire rod market is expected to grow steadily due to increasing construction and infrastructure projects worldwide, as well as the rising demand for automotive and manufacturing industries. Additionally, the ongoing technological advancements and innovations in steel wire rod production are further driving market growth.
- Q: What are the different surface defects that can affect the performance of steel wire rod?
- There are several surface defects that can affect the performance of steel wire rods. These include cracks, pits, scratches, scale, and decarburization. Cracks can weaken the wire rod and lead to breakage under stress. Pits and scratches can cause stress concentration points, reducing the strength and ductility of the rod. Scale, which is a layer of oxide on the surface, can affect the adhesion of coatings and cause corrosion. Decarburization, where the carbon content is reduced at the surface, can lead to reduced strength and hardness of the wire rod. Overall, these surface defects can compromise the performance and durability of steel wire rods.
- Q: What are the different surface marking materials used for steel wire rod?
- Steel wire rod can be marked using various surface marking materials to provide identification and traceability. Some commonly used materials include paint, ink, hot stamping, laser marking, and etching. 1. Paint is frequently used to mark steel wire rod and can display information like product identification, grade, and the manufacturer's logo. Paint markings are durable and can withstand handling and transportation. 2. Ink is another popular option for marking steel wire rod. It is applied through a printing process and can indicate product specifications, lot numbers, and barcodes. Ink markings are resistant to abrasion and offer high-contrast visibility. 3. Hot stamping involves applying a marking foil to the surface of the steel wire rod using heat and pressure. This technique transfers pre-printed information onto the rod, often including heat numbers, production dates, and customer-specific requirements. 4. Laser marking is a non-contact process that uses a laser beam to create permanent markings on the surface of the steel wire rod. This method allows for precise engraving of information like logos, serial numbers, and part numbers. Laser markings are highly durable and resistant to fading. 5. Etching is a chemical process that removes a thin layer of material from the surface of the steel wire rod. It creates indented markings that can be filled with paint or ink for increased visibility. Etched markings are resistant to abrasion and provide a long-lasting identification solution. The choice of surface marking material for steel wire rod depends on factors such as required durability, visibility, and specific application requirements. Each material offers its own advantages and can be customized to meet the needs of wire rod manufacturers and end-users.
- Q: What are the different types of steel wire rod surface cleaning tools?
- A variety of steel wire rod surface cleaning tools can be found on the market. These tools are designed to eliminate dirt, rust, and other impurities from the surface of steel wire rods, resulting in a pristine and smooth outcome. One commonly used cleaning tool is the wire brush. These brushes feature rigid bristles made of steel or other materials, which effectively remove rust and loose debris from the wire rod's surface. Wire brushes are available in different shapes and sizes, allowing users to choose the one that suits their needs best. Another type of cleaning tool is the sanding disc or wheel. These tools are typically constructed with abrasive materials like sandpaper or grinding wheels. They are attached to a rotating machine and, when pressed against the wire rod's surface, eliminate rust and impurities through abrasion. Chemical cleaning agents are also employed for cleaning steel wire rod surfaces. These agents are typically applied using brushes or sprays, working by breaking down and dissolving contaminants on the surface. After application, the surface is usually rinsed with water to eliminate the cleaning agent and any remaining residue. Ultrasonic cleaners offer an alternative for cleaning steel wire rod surfaces. These machines utilize high-frequency sound waves to generate small bubbles in a cleaning solution. As these bubbles implode, they create a scrubbing action that removes dirt, rust, and other impurities from the wire rod's surface. In addition to these tools, specialized cleaning machines are available for larger-scale operations. These machines often combine mechanical, chemical, and/or ultrasonic cleaning methods to ensure a thorough and efficient cleaning process. Ultimately, the choice of cleaning tool depends on the user's specific needs and requirements. Important factors to consider include the extent of contamination, the desired finish, and the size of the wire rod when selecting the appropriate cleaning tool.
- Q: What are the common industry qualifications for steel wire rod professionals?
- The common industry qualifications for steel wire rod professionals typically include a bachelor's degree in metallurgical engineering or a related field, relevant work experience in the steel industry, and knowledge of steel manufacturing processes. Additionally, certifications such as Certified Steel Professional (CSP) or Certified Metallurgical Engineer (CME) can further enhance one's qualifications in this field.
- Q: What are the major factors affecting the supply and demand of steel wire rod?
- The supply and demand of steel wire rod can be affected by various major factors. 1. Economic growth plays a crucial role in determining the demand for steel wire rod. When the economy is growing, there is an increased need for construction, infrastructure development, and manufacturing, all of which require steel wire rod. Conversely, during economic downturns, demand for steel wire rod may decrease as construction projects are put on hold and manufacturing activities slow down. 2. The global production capacity and output levels of steel have a direct impact on the supply of steel wire rod. If there is an increase in steel production, it will result in a larger supply of steel wire rod in the market. Conversely, if steel production declines due to trade restrictions or disruptions in production, the supply of steel wire rod may be limited. 3. The availability and prices of raw materials used in steel wire rod production, such as iron ore and scrap metal, can also affect the supply and pricing of steel wire rod. If the prices of these raw materials increase, it can lead to higher production costs for steel wire rod manufacturers, potentially reducing the supply or increasing the price of the product. 4. Technological advancements in steel wire rod production processes can impact both the supply and demand. Improved production techniques can increase the supply by making the manufacturing process more efficient and cost-effective. Additionally, advancements in steel wire rod applications, such as in the automotive or construction industries, can increase the demand for the product. 5. Trade policies and tariffs imposed by governments can significantly impact the supply and demand of steel wire rod. Tariffs on steel imports can limit the supply of steel wire rod from foreign producers, potentially increasing the demand for domestic manufacturers. On the other hand, reduced trade barriers can increase competition and supply from global markets. 6. Environmental regulations and sustainability initiatives can also influence the supply and demand of steel wire rod. Stricter environmental regulations may require steel wire rod manufacturers to invest in cleaner production methods, potentially increasing production costs and limiting supply. Additionally, the demand for sustainably produced steel wire rod may increase as companies and consumers prioritize environmentally friendly products. In conclusion, the supply and demand of steel wire rod are influenced by a combination of economic factors, technological advancements, raw material availability, trade policies, and environmental considerations. These factors can change over time, leading to fluctuations in the supply and demand dynamics of the steel wire rod market.
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Hot- rolled wire rod
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
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- Supply Capability:
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