Hot Rolled Carbon Steel Round Bars S40C
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 120000 m.t./month
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Hot Rolled Carbon Steel Round Bars S40C
Product Specification
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr | Ni | Cu |
| S40C | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | ≤0.030 | ≤0.030 | ≤0.20 | ≤0.25 | ≤0.25 |
2, Mechanical Properties
| Strength of Extension σb | Yield Strength σs | Reduction of Area ψ | impact absorbing energy |
| ≥570 Mpa | ≥335 Mpa | ≥45% | ≥47 Aku2/J |
3, Diameter: 16mm - 300mm
Length: Max 12m
Application
Used to produce axis shaft, transmission shaft, piston rod, connecting rod, chain wheel, wheel gear, etc.
Product Main Points
1, Heat Treatment: normalizing, annealing, tempering, quenching
2, Surface Treatment: black, grinding, bright, polish
3, Product Process: hot rolled, cold drawn, forged
FAQ
1, Payment Terms:
30% T/T deposit & 70% T/T before delivery.
Irrevocable L/C at sight
2, Trade Terms:
EXW, FOB, CIF, CNF
3, Delivery Time:
Normally 30-40 days. According to quantity.
4, Manufacture or Trading Company:
CNBM is a state-owned fortune global 500 trading company. We have intergrated supply system.
There are about 20 overseas locations in different countries.
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- Q: How are steel round bars measured and specified?
- Steel round bars are measured and specified based on their diameter. The diameter of a round bar is typically measured in millimeters (mm) or inches (in). The measurement is taken across the widest point of the circular cross-section. In terms of specification, steel round bars are commonly specified by their diameter and length. For example, a specification for a steel round bar may be written as "25mm diameter x 3 meters length". This means that the bar has a diameter of 25mm and a length of 3 meters. Additionally, steel round bars may also be specified based on their tolerance, surface finish, and grade. Tolerance refers to the allowable deviation from the specified diameter. Surface finish refers to the quality of the bar's surface, which can range from rough to smooth. Grade refers to the quality and composition of the steel used to make the round bar, such as mild steel, carbon steel, or alloy steel. It is important to accurately measure and specify steel round bars to ensure that they meet the required dimensions and properties for a particular application.
- Q: How do steel round bars compare to ceramic round bars?
- The properties and applications of steel round bars and ceramic round bars differ significantly. Steel round bars exhibit exceptional strength and durability due to their composition of iron and carbon alloys, along with additional elements like manganese, chromium, and nickel. They possess high resistance to deformation, can withstand high temperatures, and have impressive tensile strength. As a result, steel round bars find common use in construction, manufacturing, and engineering industries where strength and reliability are vital. Their versatility allows for easy machining and shaping into various forms. On the contrary, ceramic round bars consist of non-metallic materials such as clay, porcelain, or glass. Ceramics offer distinct properties, including heat resistance, corrosion resistance, and wear resistance. Additionally, they are chemically inert and exhibit excellent electrical insulation capabilities. Ceramic round bars are frequently employed in industries that demand high-temperature resistance, chemical resistance, or electrical insulation, such as aerospace or electronic component manufacturing. When comparing steel round bars to ceramic round bars, it is crucial to consider the specific requirements of the application at hand. Steel round bars are preferred for heavy-duty uses where mechanical stress and load-bearing capabilities are essential, owing to their exceptional strength and toughness. Conversely, ceramic round bars are often chosen for their resistance to heat, chemicals, and electrical insulation properties, which play a crucial role in specialized industries. In conclusion, steel round bars and ceramic round bars possess distinct properties and are suitable for diverse applications. Steel round bars excel in heavy-duty uses, owing to their strength and durability, while ceramic round bars are particularly valuable in applications requiring high-temperature resistance, chemical resistance, and electrical insulation.
- Q: How do I choose the right grade of steel round bar for my application?
- Choosing the right grade of steel round bar for your application requires careful consideration of several factors. Here are some steps to help you make an informed decision: 1. Determine the application requirements: Start by understanding the specific demands of your application. Consider factors such as load-bearing capacity, corrosion resistance, temperature resistance, and any specific industry standards or regulations that may apply. 2. Identify the required mechanical properties: Depending on the application, you may need specific mechanical properties such as strength, hardness, toughness, or ductility. Identify the required values for these properties and prioritize them based on their importance to your application. 3. Consider the environmental conditions: Evaluate the conditions in which the steel round bar will operate. This includes factors such as exposure to moisture, chemicals, high temperatures, or abrasive environments. Some grades of steel are more resistant to corrosion or heat, making them more suitable for specific conditions. 4. Consult with experts: If you are unsure about the best grade of steel for your application, seek advice from professionals such as metallurgists, engineers, or suppliers. They can provide valuable insights based on their expertise and experience. 5. Compare different grades: Once you have a clear understanding of your application requirements, research and compare different grades of steel round bars available on the market. Consider factors such as composition, manufacturing process, and specific properties of each grade. Look for grades that closely match your requirements. 6. Review industry standards and specifications: Check if there are any industry standards or specifications that dictate the use of specific grades for your application. These standards can provide guidance and ensure compliance with safety and quality requirements. 7. Evaluate cost-effectiveness: Evaluate the cost-effectiveness of different grades by considering factors such as initial purchase cost, maintenance and replacement costs, and the overall lifespan of the steel round bar. 8. Conduct tests and trials: If possible, conduct tests or trials using different grades of steel round bars to assess their performance in your specific application. This can provide valuable data and help you make a more informed decision. By following these steps and considering all relevant factors, you can choose the right grade of steel round bar that will meet the demands of your application efficiently and effectively.
- Q: What are the advantages of using nitriding steel round bars?
- Nitriding steel round bars offer numerous benefits. Firstly, they possess a remarkable surface hardness. Through the nitriding process, nitrogen diffuses into the outer layer of the steel, creating a hard nitride layer. This greatly enhances the wear resistance and durability of the round bars, rendering them suitable for applications involving heavy loads or abrasive environments. Secondly, the fatigue strength of nitriding steel round bars is improved. The nitride layer formed during the nitriding process also enhances the steel's ability to withstand fatigue. Consequently, the round bars can endure repeated loading and high-stress conditions without experiencing premature failure. Moreover, nitriding steel round bars exhibit outstanding corrosion resistance. The nitride layer acts as a barrier against corrosive elements, such as moisture, chemicals, or saltwater, effectively protecting the underlying steel. This makes them ideal for use in harsh environments where corrosion is a concern, such as the marine or chemical industries. Furthermore, nitriding steel round bars retain a high surface hardness even at elevated temperatures. Unlike other surface hardening processes that rely on thin coatings, nitriding modifies the surface layer of the steel, resulting in a stable hardened layer that withstands high temperatures. This ensures that the round bars maintain their hardness and mechanical properties even in demanding heat-intensive applications. In conclusion, the advantages of utilizing nitriding steel round bars include high surface hardness, improved fatigue strength, excellent corrosion resistance, and high surface hardness retention at elevated temperatures. These properties make them the preferred choice for various applications in industries such as automotive, aerospace, manufacturing, and construction.
- Q: What are the factors to consider when selecting a steel round bar for a specific application?
- When choosing a steel round bar for a particular application, there are several key factors that need to be taken into account. Firstly, the material grade of the steel round bar is of utmost importance. Different grades of steel have different properties, such as strength, hardness, and resistance to corrosion. It is crucial to select a material grade that is suitable for the specific requirements of the application. Secondly, the mechanical properties of the steel round bar, such as tensile strength, yield strength, and elongation, need to be carefully evaluated. These properties determine how well the bar can withstand forces and deformations under load. It is important to choose a steel round bar with mechanical properties that are compatible with the demands of the application. The size and dimensions of the steel round bar also play a critical role. This includes considering the diameter, length, and tolerance requirements. The dimensions should be chosen based on the structural needs of the application and the desired load-bearing capacity of the bar. The surface finish of the steel round bar is significant, particularly in applications where aesthetics or contact with other components are important. Factors such as smoothness, roughness, and the presence of coatings or treatments should be taken into account. Depending on the environment in which the application will be used, it is crucial to select a steel round bar with adequate corrosion resistance. Factors such as exposure to moisture, chemicals, or extreme temperatures can impact the bar's performance and longevity. Options like stainless steel or corrosion-resistant coatings can be considered to enhance the bar's resistance to corrosion. If the steel round bar needs to be machined or fabricated into a specific shape, its machinability must be considered. Some steel grades are easier to machine than others and may require different tools or techniques. It is important to choose a bar with a machinability that aligns with the desired manufacturing processes. Lastly, the cost of the steel round bar should not be overlooked. Different material grades and specifications come with varying price points. It is important to strike a balance between the required properties and performance of the bar and the budget constraints of the project. In conclusion, selecting a steel round bar for a specific application necessitates careful consideration of the material grade, mechanical properties, size, surface finish, corrosion resistance, machinability, and cost. By taking these factors into account, one can ensure that the chosen steel round bar will meet the requirements of the application and deliver optimal performance.
- Q: What are the advantages of using nickel-alloy steel round bars?
- There are several advantages of using nickel-alloy steel round bars: 1. High strength and durability: Nickel-alloy steel round bars are known for their superior strength and durability. They can withstand high levels of stress and provide excellent resistance to corrosion, making them ideal for applications in harsh environments. 2. Enhanced temperature resistance: Nickel-alloy steel round bars have excellent temperature resistance properties, allowing them to maintain their strength and integrity even at elevated temperatures. This makes them suitable for use in high-temperature applications such as aerospace, power generation, and petrochemical industries. 3. Improved corrosion resistance: Nickel-alloy steel round bars exhibit exceptional corrosion resistance, making them highly resistant to rust and oxidation. This characteristic makes them ideal for use in marine environments, chemical plants, and other applications where exposure to corrosive substances is common. 4. Excellent mechanical properties: Nickel-alloy steel round bars possess excellent mechanical properties such as high tensile strength, toughness, and ductility. This enables them to withstand heavy loads and impacts without deformation or failure, making them suitable for use in critical structural applications. 5. Versatility and adaptability: Nickel-alloy steel round bars can be easily machined, forged, and welded, allowing for greater versatility in manufacturing processes. They can be shaped and formed into various sizes and dimensions to meet specific application requirements, making them highly adaptable to different industries. 6. Cost-effective solution: While nickel-alloy steel round bars may have a higher initial cost compared to other materials, their long-term cost-effectiveness makes them a preferred choice for many industries. Their resistance to corrosion and wear reduces maintenance and replacement costs, ultimately resulting in significant cost savings over time. In conclusion, the advantages of using nickel-alloy steel round bars lie in their high strength, enhanced temperature resistance, improved corrosion resistance, excellent mechanical properties, versatility, adaptability, and cost-effectiveness. These qualities make them a reliable and efficient choice for a wide range of applications in various industries.
- Q: Are steel round bars suitable for bicycle frame applications?
- Yes, steel round bars are suitable for bicycle frame applications. Steel is a commonly used material for bicycle frames due to its strength, durability, and ability to absorb vibrations. Round bars provide a strong and rigid structure, allowing for a stable and reliable frame that can withstand the stresses and strains of regular use.
- Q: Can steel round bars be used for making pipelines?
- Pipelines can indeed be constructed using steel round bars. Steel is commonly utilized in pipeline construction because of its robustness, longevity, and ability to resist corrosion. Cylindrical in shape, round bars are easily manufactured and can be joined together through welding to create pipelines of different sizes and lengths. The steel round bars employed for pipelines typically consist of carbon or alloy steel, both of which possess substantial tensile strength and can endure high pressure and temperature conditions. Moreover, protective coatings like epoxy or polyethylene can be applied to steel round bars to heighten their resistance to corrosion. As a whole, steel round bars offer a dependable and efficient choice for building pipelines across various industries, including oil and gas, water supply, and construction.
- Q: How are steel round bars used in the construction of bridges and buildings?
- Due to their strength, durability, and versatility, steel round bars find wide usage in the construction of bridges and buildings. Typically made of carbon steel and possessing a circular cross-section, these bars are ideal for structural applications. In bridge construction, steel round bars are commonly employed to reinforce concrete structures. They are frequently embedded within concrete beams, columns, and slabs to enhance their load-bearing capacity and resist bending and shearing forces. Strategically placed in the concrete, these bars provide tensile strength to complement the compressive strength of the concrete. This reinforcement ensures that the bridge can endure heavy loads and traffic while maintaining its structural integrity. Similarly, in building construction, steel round bars play a crucial role in reinforcing concrete structures. They are commonly utilized in the construction of columns, beams, and foundations to increase their load-carrying capacity and prevent structural failure. During the pouring process, the bars are typically added to the concrete, forming a sturdy framework that enhances the building's strength and stability. Furthermore, steel round bars are utilized to create steel frames in building construction. These frames provide the skeletal structure of the building, supporting the weight of the floors, walls, and roofs. Due to their high strength-to-weight ratio, steel round bars are perfect for constructing lightweight yet robust frames that can withstand various loads, including wind and seismic forces. Additionally, steel round bars serve other purposes in construction, such as fabricating steel reinforcements, connectors, and fasteners. They can be welded, bolted, or threaded to join different structural elements, ensuring a secure and sturdy construction. Overall, steel round bars are an essential component in the construction of bridges and buildings, providing the necessary strength, durability, and flexibility to create structurally sound and long-lasting structures.
- Q: What are the advantages of using precipitation-strengthened steel round bars?
- One advantage of using precipitation-strengthened steel round bars is their superior strength and hardness. The precipitation-hardening process allows for the formation of fine and evenly dispersed particles, enhancing the material's mechanical properties. This makes them suitable for applications that require high strength and durability, such as in construction, manufacturing, and automotive industries. Additionally, precipitation-strengthened steel round bars have excellent corrosion resistance, enabling them to withstand harsh environments and prolonged exposure to moisture without compromising their strength.
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Hot Rolled Carbon Steel Round Bars S40C
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 120000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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