Hot-rolled Coil of SAE10B33 Cold Heading Steel

The hot-rolled coil of SAE10B33 cold heading steel is a kind of steel product with specific chemical composition and performance characteristics. It has high tensile strength and yield strength, which can meet the manufacturing requirements of high-strength fasteners. At the same time, it also has good toughness and ductility, ensuring the reliability of the fasteners during use. Moreover, it has excellent wear resistance and fatigue resistance, making it quite suitable for long-term cyclic loading applications.

The material advantages of the hot-rolled coil of SAE10B33 cold heading steel:

The chemical composition is stable, and the content of harmful elements is low, ensuring the consistency of the material's performance.

The decarburized layer is small, and the surface quality is high, reducing the difficulty of subsequent processing.

The original hardness is low, and the cold heading cracking rate is low, improving the processing efficiency.

It has good hardenability and high strength after heat treatment, meeting the performance requirements of high-strength fasteners.

The application fields of the hot-rolled coil of SAE10B33 cold heading steel:

Automobile industry: It is used to manufacture high-strength fasteners such as bolts and nuts on automobiles.

Machinery manufacturing industry: It can be used to manufacture various mechanical parts, such as gears, shafts, chains, etc.

Construction industry: It is used to manufacture building structural components and connectors.

Electronics and home appliance industry: It is used to manufacture the fasteners of electronic devices and home appliance products.

Shipbuilding industry: It is used to manufacture high-strength connectors on ships.

The production of the hot-rolled coil of SAE10B33 cold heading steel usually includes the following main process steps:

Steelmaking: Ingredients and smelting are carried out according to the specified chemical composition, and the content of each element is precisely controlled. Through operations such as refining, harmful components such as impurities and gases in the molten steel are removed to obtain high-quality molten steel.

Continuous casting: The molten steel is cast into steel billets of certain dimensions and shapes. During the continuous casting process, parameters such as the cooling rate and the billet withdrawal rate need to be well controlled to ensure the internal quality and surface quality of the steel billets.

Heating: The steel billets are heated to an appropriate rolling temperature, generally above 1000°C, to make the steel billets have good plasticity, which is convenient for subsequent rolling processing.

Rolling: Through multiple passes of rolling, the steel billets are gradually rolled into the required coil specifications. Parameters such as the rolling speed and the reduction amount are controlled to obtain good structure and performance.

Cooling: The rolled coils need to be appropriately cooled, such as by air cooling or water cooling. Controlling the cooling rate can adjust the structure and performance of the steel. For example, a fine grain structure can be obtained to improve the strength and toughness of the steel.

Finishing: Finishing treatments such as surface inspection and grinding are carried out on the coils to remove surface defects and ensure the surface quality of the coils. At the same time, the coils are bundled and packaged for easy transportation and storage.

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