B7 cold - heading steel hot - rolled wire rod

B7 cold heading steel hot-rolled wire rod is a high-quality steel product specifically designed for the cold heading forming process. This product has excellent mechanical properties and processing performance, and is widely used in the manufacturing of high-strength fasteners such as bolts, nuts, screws, and other cold heading formed parts.

Product Features

High Strength: B7 cold heading steel hot-rolled wire rod has high tensile strength and yield strength, which can meet the manufacturing requirements of high-strength fasteners.

Good Cold Heading Performance: This steel has excellent cold heading forming performance, which can be used for complex forming processing at room temperature, reducing the risk of cracking and breaking during the processing.

Uniform Microstructure: Through precise control of the hot-rolling process, B7 cold heading steel hot-rolled wire rod has a uniform microstructure, ensuring the consistency and reliability of the product.

Excellent Surface Quality: The surface of the wire rod is smooth, free of cracks, folds and other defects, making it suitable for subsequent surface treatment processes such as galvanizing and phosphating.

High Dimensional Accuracy: The product has precise dimensions and strict tolerance control, ensuring stability and consistency during the cold heading processing.

Outstanding Physical Properties:

High Strength: After being tempered by the hot-rolling process, B7 cold heading steel hot-rolled wire rod exhibits remarkable tensile strength. In critical application scenarios such as oil pipeline connections and large machinery fastening, it can firmly withstand huge tensile and compressive forces, effectively preventing component loosening and fracture, providing a solid guarantee for the overall structural integrity of the project, and ensuring the reliable operation of various heavy equipment under harsh working conditions.

Toughness Reserve: While having high strength, its toughness is also remarkable. During the cold heading processing, it can greatly reduce the risk of crack generation due to its good toughness, and easily meet the forming requirements of parts with complex shapes. Whether it is a small connecting piece in a precision instrument or a special-shaped fastener in a large machine, it can be processed smoothly, greatly improving production flexibility and the qualified product rate, and reducing waste losses.

High Precision: The advanced hot-rolling production process combined with precise equipment adjustment enables B7 cold heading steel hot-rolled wire rod to have extremely high dimensional accuracy. The diameter tolerance is controlled within a very small range, and the surface flatness and smoothness are excellent. This not only allows the automated cold heading production line to operate efficiently and accurately, reducing the probability of malfunctions such as material jams and dimensional deviations, but also saves a lot of time and cost for subsequent high-precision machining processes. It can meet the requirements of precision manufacturing without complicated secondary trimming.

B7 cold heading steel hot-rolled wire rod is widely used in the following fields:

Automotive Industry: For manufacturing high-strength fasteners such as bolts, nuts, and screws.

Machinery Manufacturing: Used to produce various cold heading formed parts.

Construction Industry: For manufacturing high-strength fasteners for construction.

Home Appliance Industry: Used to produce fasteners and connectors for home appliances.

Packaging and Transportation:

Packaging: The wire rod is usually packaged in bundles. The weight of each bundle is customized according to customer requirements. Common packaging methods include plastic film wrapping and steel strip bundling.

Transportation: During transportation, the product should be protected from severe collisions and a humid environment to ensure surface quality and dimensional accuracy.

Storage Recommendations:

The storage environment should be dry and well-ventilated, and avoid contact with corrosive substances.

The wire rod should be stored flat to avoid deformation due to long-term pressure.

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