B280VK carbon structural steel
What is B280VK carbon structural steel?
B280VK carbon structural steel is a high-strength, low-alloy structural steel whose main components include carbon, silicon, manganese, vanadium and other elements. The steel has good weldability, machinability and plasticity, and is widely used in various engineering fields.
B280VK steel has high strength, excellent impact resistance and wear resistance, and is often used in the manufacture of important structural parts in the engineering field, such as ships, bridges, buildings, machinery and equipment, etc. At the same time, it is also widely used in automobile manufacturing, agricultural machinery, mining machinery and other fields.
What is the chemical composition of B280VK carbon structural steel?
Carbon (C): 0.22% – 0.28%
Silicon (Si): 0.15% – 0.40%
Manganese (Mn): 0.60% – 1.50%
Phosphorus (P): ≤0.030%
Sulfur (S): ≤0.025%
Chromium (Cr): ≤0.30%
Nickel (Ni): ≤0.30%
Copper (Cu): ≤0.30%
Vanadium (V): 0.05% – 0.12%
Aluminum (Al): ≥0.015%
What are the main mechanical properties of B280VK carbon structural steel?
Tensile strength 780-950 MPa
Yield strength ≥ 640 MPa
Elongation ≥ 14%
Reduction of area ≥ 50%
Impact toughness (absorbed energy) ≥ 34 J
B280VK carbon structural steel has high strength, excellent plasticity, weldability and machinability. Its impact resistance, wear resistance and other properties are also relatively good, and it is suitable for the manufacture of various important structural parts. However, it is necessary to strictly control the process and quality during use to ensure the quality and safety of the product.
What are the advantages of B280VK carbon structural steel?
High strength: B280VK steel has high tensile strength and yield strength, and can withstand large loads;
Good plasticity: the steel has good ductility and reduction of area, and is easy to form and process;
Good weldability: B280VK steel has good weldability and machinability, which is convenient for on-site construction and maintenance;
Good wear resistance and impact resistance: B280VK steel can withstand large impact loads and wear, and is suitable for the manufacture of high-strength structural parts.
What are the disadvantages of B280VK carbon structural steel?
Higher price: B280VK steel is more expensive than some ordinary steel, and the cost is relatively high;
Easy to rust: B280VK steel is easy to rust and requires anti-corrosion treatment;
Difficult to process: The high strength and low alloy properties of B280VK steel make it more difficult to process and form than some conventional steels, requiring more professional techniques and equipment for processing.
How is B280VK carbon structural steel used as automotive steel?
B280VK carbon structural steel is widely used in the field of automobile manufacturing due to its high strength and low alloy characteristics. The following are some applications of B280VK carbon structural steel in automobile steel:
Body structural parts: B280VK carbon structural steel can provide automobiles with excellent tensile, bending and extrusion strength, and can manufacture safer and more durable body structural parts, such as doors, roofs, body side panels, chassis, etc.
Suspension system: The high strength and good plasticity of B280VK carbon structural steel make it excellent in automobile suspension systems, able to withstand high-strength impact loads and vibrations, and to create a more comfortable and stable driving experience.
Engine hood and exhaust pipe: B280VK carbon structural steel can withstand high temperature and high pressure, and has good corrosion resistance and wear resistance, so it is also widely used in the manufacture of automobile engine hoods and exhaust pipes.
How is B280VK carbon structural steel made?
The manufacture of B280VK carbon structural steel generally requires the following steps:
Raw material preparation: Prepare the required steel raw materials and additives of other alloying elements to ensure that the chemical composition of the raw materials meets the requirements.
Smelting: Put raw materials into the furnace for smelting. Usually electric arc furnace or blast furnace is used for smelting, and suitable slag and other alloying elements are added in the furnace to adjust the composition and temperature of the melt.
Ingot Casting: The molten steel is poured into ladles or casting molds, allowed to gradually cool and solidify to form ingots.
Hot rolling: the steel ingot is heated to an appropriate temperature for hot rolling processing to form a steel plate or a steel coil. The hot rolling temperature of B280VK carbon structural steel is generally between 900°C and 1200°C, and the specific temperature needs to be determined according to the material and process requirements.
Steel annealing: Annealing steel at an appropriate temperature to relieve stress, improve grain boundaries and increase the plasticity and toughness of the material.
Finished product processing: cutting, forming, and processing hot-rolled steel plates or coils to make various structural parts, parts or products.
What is the use of B280VK carbon structural steel?
B280VK carbon structural steel is a high-strength, low-alloy structural steel widely used in engineering structures, manufacturing, automobile manufacturing and other fields. Some main uses of B280VK carbon structural steel are listed below:
Engineering structure: B280VK carbon structural steel can be used to manufacture large-scale engineering structures such as bridges, high-rise buildings, aerospace equipment, petrochemical equipment, and water conservancy projects to improve the strength and durability of the project.
Manufacturing: B280VK carbon structural steel can be used to manufacture various mechanical equipment, building structural parts, ships, railway vehicles and other products to improve the strength and stability of the products.
Automobile manufacturing: B280VK carbon structural steel can be used in the manufacture of automobile chassis, body, suspension system, engine cover, exhaust pipe and other components to improve the safety, durability and fuel efficiency of automobiles.
Military manufacturing: B280VK carbon structural steel has high strength, high hardness, and good bulletproof performance, so it has also been widely used in the field of military manufacturing.
Other fields: B280VK carbon structural steel can also be used to manufacture high-pressure vessels, pipelines, transmission towers, drilling rigs and other equipment, as well as various engineering and manufacturing fields that require high strength, high durability and corrosion resistance.
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