Hot Rolled Round Rod Coil

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications of Hot Rolled Wire Rod:

Steel Grade: Q195/235, SAE1006-1018B Standard: ASTM, GB

Diameter: 5.5mm, 6.5mm, 7mm,8mm,9mm,10mm,12mm,14mm

Type: in coil, coil weight around 2MT Alloy or Not: Alloy

Technique: Hot Rolled Place of Origin: China Mainland

Surface: round, no twisted, light and smooth

Chemical Composition: (Please kindly find our chemistry of our material based on Q195、Q235A and Q235B as below for your information)

Trademark	Rank	Chemical composition (quality score) %
		C	Si	Mn	S	P
		C	Si	Mn	S	P
			≤		≤	≤
Q195		0.06-0.12	0.30	0.25	0.050	0.045
Q235	A	0.14-0.22	0.30	0.30-0.65	0.050	0.045
Q235	B	0.12-0.20	0.30	0.30-0.70	0.045	0.045

Usage and Applications of Hot Rolled Wire Rod:

After hotrolled the products shaped into coil and delivery as finished product, including round, square, rectangular, hexagonal and so on. Since most of the products are round, it is generally called wire rod. Carbon steel wire rod is widely used in construction and manufacturing. Carbon steel wire rod is mainly used for reinforcement of reinforced concrete and welded structure or reprocessed (roberts , nail, etc.) materials, especially used to produce wire drawing, welding electrode, nails, spring, electronic, precise machinery parts and so on.

Packaging & Delivery of Hot Rolled Wire Rod:

Packaging Detail: products are packed in coil, each coil weight around 2 MT, and then shipped by container or bulk vessel

Delivery Detail: within 45 days after received deposit or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF

Q: What are the different surface protection methods for steel wire rod?: There exists a variety of surface protection methods for steel wire rods, each with different levels of protection and suitability for various applications. Some commonly used methods include: 1. Galvanization: The application of a zinc coating to the surface of the steel wire rod. Galvanization provides exceptional corrosion resistance, safeguarding the steel against moisture and chemicals. It is widely employed for outdoor or corrosive environments. 2. Coating: Steel wire rods can be coated with materials like epoxy, PVC, or polyethylene. These coatings act as a barrier between the steel surface and external factors, preventing corrosion and abrasion. They also enhance the wire's resistance to chemicals, UV radiation, and other damaging elements. 3. Phosphating: An approach that involves applying a phosphate coating to the steel wire rod. This process creates a thin layer of phosphate crystals, improving adhesion for subsequent coatings or paints. Phosphating also offers some corrosion resistance. 4. Electroplating: A method that deposits a thin layer of metal onto the steel wire rod through electrochemical means. Commonly used metals for electroplating include zinc, nickel, and chromium. This technique enhances the wire's resistance to corrosion, wear, and tarnishing. Furthermore, it adds aesthetic appeal, making it suitable for decorative purposes. 5. Powder coating: This approach entails the electrostatic application of a dry powder onto the steel wire rod, followed by curing under heat. The powder melts, forming a protective coating on the wire's surface. Powder coating provides excellent durability, resistance to corrosion, chemicals, and UV radiation. Moreover, it offers a wide range of color options and a smooth, attractive finish. Selecting the appropriate surface protection method for steel wire rods is crucial and should be based on specific requirements and the intended environment. Factors such as corrosion resistance, abrasion resistance, aesthetics, and cost-effectiveness must be considered when determining the most suitable method.

Q: How is steel wire rod used in the manufacturing of wire mesh shelves?: Steel wire rod is used in the manufacturing of wire mesh shelves as it serves as the raw material for creating the wire mesh. The steel wire rod is first processed and drawn into thin wires, which are then woven or welded into a mesh pattern to form the shelves. This mesh structure provides strength, durability, and allows for proper ventilation and visibility in the shelves.

Q: How are surface defects in steel wire rod repaired?: Surface defects in steel wire rod can be repaired by various methods such as grinding, peeling, or machining. These processes involve removing the defective area, exposing the sound material beneath, and then reshaping or refinishing the surface to restore its integrity. Additionally, heat treatment processes like annealing can be employed to further enhance the mechanical properties of the repaired wire rod.

Q: How are steel wire rods used in the manufacturing of welding wires?: Welding wires are manufactured from steel wire rods, which are essential components in the manufacturing process. Typically made of carbon steel, these wire rods undergo various manufacturing processes to transform them into welding wires. To begin with, the steel wire rods are cleaned to eliminate impurities and contaminants. This step ensures that the resulting welding wires meet high-quality standards and are suitable for welding applications. The cleaning process may involve techniques such as acid pickling or mechanical descaling. Once cleaned, the wire rods are drawn through a series of dies to reduce their diameter to the desired size. This drawing process elongates and thins the rods by pulling them through progressively smaller dies. The result is a more uniform wire diameter, which is crucial for precise welding applications. After achieving the desired diameter, the wire rods may undergo additional treatments depending on their intended use. For instance, heat treatment processes like annealing can be applied to enhance the wires' mechanical properties and reduce internal stresses. Next, the wire rods are typically coated with materials like copper to improve their electrical conductivity and provide corrosion resistance. This coating also enhances the weldability of the wires. Finally, the coated wire rods are spooled onto reels or coils to be used in various welding processes. These welding wires are then supplied to industries and professionals engaged in welding applications, such as construction, automotive, or manufacturing. In conclusion, the manufacturing of welding wires involves a series of processes, including cleaning, drawing, heat treatment, coating, and spooling. These wires play a crucial role in welding applications, offering a reliable and efficient means of joining metals together.

Q: What are the main factors influencing the choice of steel wire rod dimensions?: The main factors influencing the choice of steel wire rod dimensions include the intended application, desired mechanical properties, manufacturing capabilities, cost considerations, and industry standards or specifications.

Q: How is steel wire rod used in the manufacturing of wire for overhead power lines?: Steel wire rod is used in the manufacturing of wire for overhead power lines by being drawn through a series of dies to reduce its diameter. This process, known as wire drawing, helps to increase the wire's strength and flexibility. The resulting steel wire is then stranded or twisted together to form a conductor that can efficiently transmit electricity over long distances. Additionally, the steel wire's corrosion resistance and high tensile strength make it ideal for withstanding the environmental challenges and mechanical stresses associated with overhead power lines.

Q: How are steel wire rods used in the manufacturing of bicycle spokes for strength and durability?: Steel wire rods are essential components in the manufacturing of bicycle spokes as they provide the necessary strength and durability required for the spokes to withstand the stress and tension experienced during cycling. The use of steel wire rods in bicycle spokes ensures that the spokes can effectively support the weight of the rider and the bicycle, while also maintaining their shape and structural integrity. The high tensile strength of steel wire rods allows the spokes to bear the load without breaking or deforming, enhancing the overall durability of the bicycle. In the manufacturing process, steel wire rods are typically drawn through a series of dies to reduce their diameter to the required thickness. This drawing process aligns the steel's grain structure, resulting in improved strength and resistance to fatigue. The drawn wire rods are then cut to the desired length, forming the individual spokes. The spokes are further strengthened through a process known as cold forging. During cold forging, the spokes are subjected to high pressure to compress and compact the steel, enhancing its strength and rigidity. This process also aligns the crystal structure of the steel, making it more resistant to bending and breaking. Once the spokes are formed, they are typically attached to the bicycle wheel rim and hub through a process called lacing. This involves threading the spokes through the rim and hub, and then tightening them to achieve the desired tension. The steel wire rods' strength allows the spokes to maintain the required tension, ensuring the stability and balance of the wheel. Overall, the use of steel wire rods in the manufacturing of bicycle spokes is crucial for providing the necessary strength and durability required for a reliable and long-lasting bicycle. The properties of steel, such as high tensile strength and resistance to fatigue, make it an ideal material for spokes, ensuring their ability to withstand the demanding conditions of cycling.

Q: What are the different testing methods for steel wire rod?: There are several different testing methods that can be used to evaluate the quality and characteristics of steel wire rods. Some of the most common testing methods include: 1. Tensile Testing: This method involves subjecting the steel wire rod to tension until it breaks. It helps to measure the maximum load the rod can bear and provides information about its tensile strength, yield strength, and elongation. 2. Bend Testing: In this method, the steel wire rod is bent to a specific angle and examined for any cracks or fractures. It helps to assess the rod's ductility and resistance to deformation. 3. Hardness Testing: This method measures the hardness of the steel wire rod using various techniques such as Rockwell, Brinell, or Vickers hardness tests. It determines the material's ability to resist indentation or penetration. 4. Microscopic Examination: This method involves examining the microstructure of the steel wire rod under a microscope. It helps to assess the material's grain size, inclusion content, and overall quality. 5. Chemical Analysis: This method involves analyzing the chemical composition of the steel wire rod. It helps to ensure that the rod meets the required specifications and standards. 6. Ultrasonic Testing: This non-destructive testing method uses high-frequency sound waves to detect any internal flaws or defects in the steel wire rod. It helps to assess the rod's integrity and identify any potential weaknesses. 7. Dimensional Inspection: This method involves measuring the physical dimensions of the steel wire rod to ensure it meets the specified tolerances and requirements. By employing these testing methods, manufacturers and quality control personnel can ensure that steel wire rods meet the necessary standards for their intended applications.

Q: What are the different surface coatings applied to steel wire rod?: There are several different surface coatings that can be applied to steel wire rod, including zinc, copper, nickel, and various types of polymer coatings. These coatings serve to protect the steel from corrosion, improve its appearance, and enhance its performance in specific applications.

Q: How is the quality of steel wire rod ensured during manufacturing?: The quality of steel wire rod is ensured during manufacturing through a combination of rigorous testing, stringent quality control measures, and adherence to industry standards. Firstly, the raw materials used in the production of steel wire rod undergo thorough inspection and testing to ensure they meet the required specifications. This includes testing the chemical composition, physical properties, and metallurgical properties of the raw materials. During the manufacturing process, various quality control measures are implemented to monitor and maintain the quality of the steel wire rod. These measures include regular inspections of the production equipment, verification of process parameters, and continuous monitoring of key performance indicators. In addition, samples of the steel wire rod are taken at different stages of the manufacturing process and subjected to a range of tests to evaluate their quality. These tests can include dimensional analysis, tensile strength testing, hardness testing, surface quality inspection, and other specialized tests depending on the specific requirements of the end-use applications. Moreover, manufacturing facilities often have a dedicated quality control department that oversees the entire production process and conducts comprehensive quality checks. This department ensures that all quality control procedures and standards are followed and that any deviations or non-conformances are identified and addressed promptly. Furthermore, steel wire rod manufacturers are required to comply with industry standards and certifications, such as ISO 9001, which provide guidelines and best practices for quality management systems. These standards help ensure that the manufacturing processes are standardized and consistently implemented to maintain the quality of the final product. Overall, the quality of steel wire rod is ensured during manufacturing through a combination of stringent quality control measures, extensive testing, adherence to industry standards, and continuous monitoring of the production process. These efforts help guarantee that the steel wire rod meets the required specifications and is suitable for its intended applications.

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