Q235 Steel Wire Rod

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications of Wire Rod Q235:

Grade: Q235 Standard: GB

Diameter: 5.5mm, 6.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm

Alloy or Not: Alloy

Technique: Hot Rolled Place of Origin: China Mainland

Chemical Composition:

Please kindly find our chemistry of our material based on Q235 as below for your reference:

Trademark	Rank	Chemical composition (quality score) %
		C	Si	Mn	S	P
		C	Si	Mn	S	P
			≤		≤	≤
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
Trademark	Rank	Pulling Test
		Bend PointΔs/Mpa		Tensile Strength	Elongation Ratioδ5%
					Elongation Ratioδ5%
		Thickness (Diameter) /MM			Thickness (Diameter) /MM
		≤16	16-40		≤16	16-40
		≥			≥
Q235	A	235	225	375-500	26	25
Q235	B	235	225	375-500	26	25

Usage and Applications of Wire Rod Q235:

After hot-rolled 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 Wire Rod Q235:

Packaging Detail: products are packed in coil and then shipped by container or bulk vessel

Each coil weight: About 2.05MT

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

*If you would like to get our price, please inform us the size, standard/material and quantity. Thank you very much for your attention.

Q: How is steel wire rod used in the manufacturing of wire mesh cable trays?: Steel wire rod is used in the manufacturing of wire mesh cable trays as it serves as the primary material for creating the interwoven mesh structure. The wire rod is drawn, stretched, and shaped to form individual wires that are then woven together to create a strong and durable mesh. This mesh structure provides excellent support and containment for cables, ensuring their organized and safe installation in various industrial and commercial settings.

Q: How is steel wire rod used in the production of wire fencing?: Steel wire rod is used as the primary material in the production of wire fencing. It is typically drawn through various dies to reduce its diameter and increase its strength, resulting in the creation of wire strands. These strands are then twisted or woven together to form the structure of the wire fencing. The steel wire rod provides durability, strength, and rigidity to the fencing, ensuring it can effectively contain livestock, secure property boundaries, or serve other protective purposes.

Q: What are the international standards for steel wire rod?: The international standards for steel wire rod vary depending on the specific application and country. However, some commonly recognized standards include ASTM A510/A510M (United States), BS 4449:2005 (United Kingdom), DIN 17140 (Germany), and JIS G 3505 (Japan). These standards outline requirements for chemical composition, mechanical properties, dimensions, and tolerances to ensure the quality and consistency of steel wire rod used in various industries.

Q: What are the different impact testing methods for steel wire rod?: There are several different impact testing methods that can be used to assess the mechanical properties of steel wire rods. These methods help determine how well the wire rods can withstand sudden impact or shock loading, which is crucial in various applications such as construction, automotive, and aerospace industries. Some of the commonly used impact testing methods for steel wire rods include: 1. Charpy Impact Test: This method involves striking a notched or V-notch specimen with a pendulum hammer to measure the energy absorbed during fracture. The test measures the toughness of the material and is widely used due to its simplicity and ease of implementation. The results are typically reported as the energy absorbed in joules. 2. Izod Impact Test: Similar to the Charpy test, the Izod test also measures the energy absorbed during fracture. However, in this method, the specimen is clamped vertically, and the pendulum strikes it at the opposite side of the notch. The test provides information about the material's resistance to sudden impact. 3. Drop Weight Test: In this method, a weight is dropped from a specified height onto a wire rod specimen. The energy absorbed during fracture is measured, and the test is useful in determining the material's ability to withstand impact loading under specific conditions. 4. Dynamic Tear Test: This test evaluates the fracture toughness of steel wire rods by measuring the energy required to propagate a pre-existing crack through the specimen. The test involves applying a load to the specimen, either by a pendulum or a hydraulic system, and monitoring the crack propagation. 5. Ballistic Pendulum Test: This method determines the velocity of a small projectile before and after striking the wire rod specimen. By measuring the change in velocity, the impact resistance of the material can be evaluated. The test is commonly used for high-strength steel wire rods. Each of these impact testing methods has its own advantages and limitations, and the choice of the method depends on various factors such as the specific application, material properties, and test requirements. It is essential to select an appropriate testing method that accurately reflects the intended use of the steel wire rod and ensures its performance and reliability in real-world scenarios.

Q: What are the main factors influencing the choice of steel wire rod quality standards?: The quality standards for steel wire rod are determined by various factors. Firstly, the intended use of the wire rod is crucial in determining the appropriate quality standards. Different industries have specific requirements for strength, durability, corrosion resistance, and other mechanical properties. Therefore, the choice of quality standards depends on meeting these specific needs. Secondly, national and international regulations play a significant role in determining the quality standards for steel wire rod. Organizations like ASTM, ISO, and EN regulate these standards to ensure safety and performance requirements are met. Customer specifications also influence the choice of quality standards. Customers may have their own specific requirements for chemical composition, mechanical properties, surface finish, and dimensional tolerances. Meeting these specifications is essential for customer satisfaction and maintaining long-term business relationships. Manufacturers and suppliers of steel wire rod have their own internal quality assurance and control processes. These processes include inspections, testing, and certifications to ensure the wire rod meets the required quality standards. The choice of quality standards is influenced by the manufacturer's ability to meet these internal quality control measures. Additionally, cost considerations play a role in determining the choice of quality standards. Higher quality standards may require more stringent manufacturing processes, testing, and inspections, resulting in higher production costs. Striking a balance between quality and cost is necessary to remain competitive in the market. In conclusion, the choice of steel wire rod quality standards is influenced by application requirements, national and international regulations, customer specifications, quality assurance and control processes, and cost considerations. By considering these factors, manufacturers and customers can select the appropriate quality standards to meet their specific needs and ensure the desired performance and reliability of the steel wire rod.

Q: What are the different types of steel wire rod finishes for improved impact resistance?: There are several types of steel wire rod finishes that can enhance impact resistance. Some common ones include galvanized finish, epoxy coating, and powder coating. These finishes provide a protective layer on the steel wire rod, preventing it from corrosion and increasing its durability and strength against impacts.

Q: What are the different types of defects that can occur in steel wire rod?: There are several types of defects that can occur in steel wire rods, including surface defects such as scabs, scratches, and pits. Other common defects include internal defects like cracks, voids, and inclusions. It is essential to identify and address these defects to ensure the quality and reliability of the steel wire rod.

Q: What are the different grain size measurement methods for steel wire rod?: Steel wire rod is commonly measured using various grain size measurement methods. These methods provide crucial information about the microstructure and mechanical properties of the steel. One method widely utilized is the ASTM E112 standard, which employs a microscope to measure the average grain size. To apply this method, a metallographic sample is prepared and polished to a mirror-like finish. Subsequently, the sample is etched to reveal the grain boundaries. Under a microscope, the grain boundaries are then traced and counted to determine the average grain size. Another technique is the Sieve Analysis method, frequently employed to determine the grain size distribution in steel wire rod. This method entails sieving a representative sample of the wire rod through a series of progressively smaller mesh sieves. The weight of material retained on each sieve is measured, and the grain size distribution is determined based on the percentage of retained material. The Laser Diffraction method is another frequently used approach for measuring grain size in steel wire rod. In this method, a suspension of wire rod particles is subjected to a laser beam, and the resulting scattering pattern is measured. Particle size can be determined based on the diffraction pattern, allowing for the calculation of the grain size distribution. Additional methods include the Electron Backscatter Diffraction (EBSD) method, which utilizes an electron microscope to determine crystallographic orientation and grain boundaries in the wire rod, and the X-ray Diffraction (XRD) method, which measures the angle of X-ray diffraction to determine crystallographic structure and grain size. Each of these grain size measurement methods possesses distinct advantages and limitations. The choice of method depends on factors such as the desired level of accuracy, the type of steel wire rod being analyzed, and the available equipment and expertise.

Q: What are the different types of steel wire rod testing equipment?: To ensure the quality and performance of steel wire rods, various types of testing equipment are utilized. Included among these are: 1. Tensile testing machines, which measure the maximum force a wire rod can endure by subjecting it to a pulling force until it breaks. 2. Hardness testers, which evaluate the hardness of the steel wire rod, a crucial determinant of its strength and durability. Different methods, such as Rockwell, Brinell, and Vickers hardness tests, are employed. 3. Ultrasonic testing equipment, a non-destructive method that utilizes high-frequency sound waves to identify internal defects and flaws within the wire rods. 4. Dimensional measurement tools, including micrometers, calipers, and gauges, that accurately measure the dimensions and tolerances of the wire rods. 5. Surface inspection equipment, which visually examines the wire rod's surface for any defects, such as cracks or irregularities. This can be done manually or with the aid of automated systems utilizing cameras and computer algorithms. 6. Chemical composition analyzers, which determine the presence and concentration of various elements in the wire rods, ensuring they meet the required composition standards. These examples represent just a portion of the testing equipment employed for steel wire rods. Each type plays a vital role in guaranteeing the quality, strength, and performance of these materials across diverse industries, including construction, automotive, and manufacturing.

Q: What are the common production processes for manganese-coated steel wire rod?: The common production processes for manganese-coated steel wire rod include wire drawing, cleaning, manganese phosphating, drying, and coiling.

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