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Rgs . 19, 2024 08:43 Back to list

china black annealed wire specification

Specification of China Black Annealed Wire


Black annealed wire is a commonly used product in various industries, especially in agriculture, construction, and manufacturing. In China, the specifications for black annealed wire are well-defined, ensuring consistency in quality and performance across different applications. This article aims to outline the key aspects of the specifications for black annealed wire produced in China.


1. Material Composition


Black annealed wire is primarily made from high-quality low carbon steel, which provides excellent ductility and tensile strength. The carbon content typically ranges from 0.08% to 0.12%, allowing the wire to be easily manipulated and formed. The wire undergoes a process of annealing, which involves heating the wire to a specific temperature and then cooling it slowly. This process improves the wire's flexibility and workability, making it ideal for various uses.


2. Dimensions and Sizes


The specifications for black annealed wire include a range of diameters to cater to different needs. Common diameters range from 0.50 mm to 5.00 mm. The wire is typically supplied in different forms, such as coiled or straightened, depending on the requirements of the customer. Standard coil weights usually range from 100 to 1000 kg, although custom sizes can also be produced upon request.


3. Mechanical Properties


The mechanical properties of black annealed wire are crucial for its performance. The tensile strength must fall within specified limits, generally ranging from 350 MPa to 550 MPa. The elongation percentage, which indicates the wire's ability to be stretched without breaking, usually measures between 15% and 25%. These mechanical properties make black annealed wire suitable for applications that require the material to withstand significant stress and strain.


china black annealed wire specification

china black annealed wire specification

4. Surface Finish


The surface finish of black annealed wire is primarily matte black due to the presence of iron oxide. This is a result of the annealing process and is characteristic of black annealed wire. The surface finish may be subject to specific requirements, such as being free from defects, rust, or visible contaminants. This is significant because the quality of the surface directly impacts the wire's performance in applications like binding, fencing, and other structural uses.


5. Packaging and Delivery


Packaging plays a vital role in ensuring the wire maintains its quality during transportation and storage. Black annealed wire is usually packaged in coils, wrapped securely to prevent damage. The packaging may also include identification marks that indicate the product's specifications, such as diameter, weight, and batch number. Delivery times can vary based on order volume, but standard orders are typically processed within a few weeks.


6. Applications


Black annealed wire is versatile and finds usefulness in numerous applications. It is widely employed in the construction industry for binding rebar and other structural elements. Agricultural uses include fencing and tying plants. Additionally, it is utilized in various manufacturing processes, including the production of wire mesh and other wire products.


Conclusion


The specifications for black annealed wire produced in China are designed to ensure that the product meets the demands of various industries. With its excellent mechanical properties, versatile applications, and quality material composition, black annealed wire remains a staple in the global marketplace. Companies seeking to source high-quality wire will benefit from understanding these specifications and ensuring they align with their operational needs.


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