Steel Round Bar Reliable Manufacturers from China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 554 m.t.
- Supply Capability:
- 2000000 m.t./month
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Description of steel round bar:
1. Commodity: Round steel bar
3. Technical: Hot rolling
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm
Festures of steel round bar:
1.Dia 80-800mm Length:2000-13000mm or as required
2.Technique:Forged
3.Delivery Time:45 days
Specifications of steel round bar:
1. Standards: AISI 4340 8620 8640 4320 , JIS SNCM8 GB:40CrNiMoA
2. Specification: Dia: 80~450mm Length:2000-13000mm or as required
The highest temperature is 427 degrees Celsius.it has good strength,and high quenching property ,the toughness is good and small deformation during quenching.At high temperature.
C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
0.37-0.44 | 0.17-0.37 | 0.40-0.80 | 0.025(max) | 0.025(max) | 0.60-0.90 | 1.25-1.65 | 0.025(max) | 0.15-0.25 |
Images of steel round bar:
FAQ:
1. What is your package?
Packing situation: standard seaworthy packing or as customer required.
2. How long is the lead time?
Delivery time: 45 days after order confirmed.
3. What payment term do you accept?
Payment: T/T or L/C at sight.
- Q:What are the safety precautions to be taken while handling steel round bars?
- When handling steel round bars, it is important to follow safety precautions to prevent accidents or injuries. Some key safety measures to take include wearing personal protective equipment such as gloves, safety glasses, and steel-toed boots to protect against potential hazards. Additionally, ensure proper lifting techniques are used when moving or transporting the bars to prevent strain or back injuries. It is crucial to store the round bars in a designated area, away from walkways or other potential obstructions, to avoid tripping or falling hazards. Regularly inspect the bars for any damage or defects that may compromise their structural integrity. Lastly, always follow established safety protocols and guidelines provided by the manufacturer or employer to promote a safe working environment.
- Q:How are steel round bars used in the construction of high-rise buildings?
- Due to their strength, durability, and versatility, steel round bars are commonly utilized in the construction of high-rise buildings. Carbon steel is typically used to manufacture these bars because it possesses excellent mechanical properties and can endure high loads and pressures. In reinforced concrete structures for high-rise buildings, steel round bars are primarily employed. They serve as reinforcement in concrete beams, columns, and slabs. By embedding the bars in the concrete, the overall structure gains added strength and stiffness. One of the main benefits of utilizing steel round bars is their ability to withstand tension forces. Concrete is strong in compression but weak in tension. Therefore, the steel bars act as tension reinforcement, preventing the concrete from cracking or failing when subjected to tension loads. This significantly improves the building's structural integrity and overall safety. Moreover, steel round bars offer easy bending, shaping, and welding, allowing for flexible design and construction options. They can be customized to specific lengths and diameters to meet the requirements of the building project. This adaptability makes them ideal for constructing various structural elements, like beams and columns, which must be precisely engineered to support the weight and stresses of a high-rise building. Furthermore, steel round bars exhibit excellent resistance to corrosion, which proves crucial when constructing high-rise buildings exposed to various environmental elements. The steel's corrosion-resistant properties ensure the structure's long-term durability and lifespan. In conclusion, steel round bars are essential in the construction of high-rise buildings as they provide strength, durability, and flexibility to reinforced concrete structures. They enhance the overall structural integrity, safety, and longevity of the building, making them a crucial component in modern construction practices.
- Q:How are steel round bars tested for quality?
- Steel round bars are tested for quality through various methods to ensure that they meet the required standards and specifications. One common test is the visual inspection, which involves examining the bars for any visible defects such as surface cracks, pits, or deformities. This is done by highly skilled personnel who are trained to identify any irregularities that may affect the quality of the steel bars. Another important test is the dimensional inspection, which measures the diameter, length, and straightness of the round bars. This ensures that the bars are within the specified tolerances and that they meet the required dimensions for their intended use. Mechanical testing is also conducted to assess the strength and mechanical properties of the steel bars. This includes tests like tensile strength, yield strength, and elongation, which determine how the bars will perform under various loads and conditions. These tests are carried out using specialized equipment and provide valuable information about the structural integrity and quality of the steel bars. Furthermore, chemical composition analysis is performed to verify that the steel bars contain the correct proportions of different elements such as carbon, manganese, and alloying elements. This analysis is crucial as it determines the suitability of the bars for specific applications and ensures that they possess the desired characteristics. In addition to these tests, non-destructive testing methods such as ultrasonic testing, magnetic particle inspection, or dye penetrant testing may also be employed. These techniques can detect internal or surface defects that may not be visible to the naked eye and provide further assurance of the quality and integrity of the steel bars. Overall, a combination of visual inspection, dimensional inspection, mechanical testing, chemical composition analysis, and non-destructive testing methods is used to thoroughly assess the quality of steel round bars. These rigorous testing processes help to ensure that the bars meet the required standards and specifications, providing customers with high-quality and reliable steel products.
- Q:What are the different types of steel round bars used in the automotive steering systems?
- In automotive steering systems, there exists a range of steel round bars with distinctive properties and advantages. 1. Carbon Steel Round Bars: These round bars are extensively utilized in automotive steering systems due to their superior strength and durability. They are suitable for various steering components like tie rods and drag links. Additionally, carbon steel round bars are cost-effective and readily accessible, making them a popular choice in the automotive industry. 2. Alloy Steel Round Bars: By incorporating alloying elements such as chromium, nickel, and molybdenum into carbon steel, alloy steel round bars enhance their strength, hardness, and wear resistance. They are particularly useful in high-stress areas of the steering system, including steering shafts and steering knuckles, where additional strength is required. 3. Stainless Steel Round Bars: Stainless steel round bars are renowned for their exceptional resistance to corrosion, making them ideal for steering components exposed to harsh environments or moisture. Steering column shafts and tie rod ends frequently incorporate stainless steel round bars. 4. Tool Steel Round Bars: Steering system components that demand high hardness, wear resistance, and toughness often utilize tool steel round bars. These bars are commonly employed in the production of steering gears and other precision steering components. 5. High-Strength Low-Alloy (HSLA) Steel Round Bars: HSLA steel round bars, a type of alloy steel, offer a favorable balance between strength, toughness, and formability. Lightweight steering system components often employ HSLA steel round bars to reduce weight while maintaining structural integrity. Ultimately, the selection of steel round bars in automotive steering systems depends on factors such as the specific application, desired strength, durability, and corrosion resistance. Manufacturers carefully choose the appropriate steel type to ensure optimal performance and safety in steering systems.
- Q:What are the advantages of using vanadium-alloy steel round bars?
- Vanadium-alloy steel round bars offer numerous benefits. Firstly, they possess significantly enhanced strength and toughness compared to regular steel, making them ideal for applications requiring durability and high strength, such as construction, manufacturing, and engineering projects. The inclusion of vanadium improves the steel's ability to withstand heavy loads, impacts, and extreme temperatures, enabling it to thrive in demanding environments. Secondly, vanadium-alloy steel round bars display exceptional resistance to corrosion. The vanadium creates a protective oxide layer on the steel's surface, preventing rusting and corrosion. Consequently, these bars have impressive longevity, even in harsh or corrosive surroundings. Moreover, vanadium-alloy steel exhibits excellent weldability and machinability. It can be effortlessly welded, facilitating efficient fabrication and construction processes. Additionally, its machinability allows for precise shaping and forming, making it adaptable to various design requirements. Furthermore, vanadium-alloy steel excels in wear resistance. This quality is particularly advantageous in applications where the bars face high levels of friction, abrasion, or wear, such as mining or manufacturing equipment. The addition of vanadium enhances the steel's hardness and wear resistance, thereby extending the lifespan of the bars and reducing maintenance costs. Lastly, vanadium-alloy steel demonstrates exceptional heat resistance. It can endure high temperatures without compromising its strength or structural integrity. Consequently, it is suitable for applications involving exposure to extreme heat, such as automotive engines, turbines, or power generation equipment. In conclusion, the utilization of vanadium-alloy steel round bars provides a range of advantages, including increased strength and toughness, corrosion resistance, ease of welding and machining, impressive wear resistance, and high heat resistance. These qualities establish vanadium-alloy steel round bars as a dependable and versatile choice for various applications.
- Q:What are the different finishes available for steel round bars?
- There are several different finishes available for steel round bars, each of which serves a specific purpose and provides distinct benefits. Some of the most common finishes include: 1. Hot Rolled: This finish is achieved by heating the steel above its recrystallization temperature and then rapidly cooling it. It results in a rough, scaly surface texture that provides excellent corrosion resistance and durability. 2. Cold Rolled: In this process, the steel is rolled at room temperature, resulting in a smooth and polished finish. Cold rolled steel round bars are known for their precise dimensions, tight tolerances, and improved surface finish. 3. Bright Drawn: This finish involves subjecting the steel round bars to a drawing process, where they are pulled through a die to achieve the desired shape and size. It leaves the surface smooth, bright, and free from any imperfections or defects. 4. Polished: Polishing is typically done after the steel round bars have been cold rolled or drawn. It involves using abrasive materials or chemical treatments to remove any surface imperfections and create a highly reflective finish. Polished steel round bars are often used in decorative applications. 5. Ground: Grinding is a process where the steel round bars are subjected to abrasive wheels to remove any surface imperfections or irregularities. It results in a smooth and even finish, making the bars suitable for applications where tight tolerances and uniformity are required. 6. Galvanized: Galvanizing is a coating process where the steel round bars are dipped in a bath of molten zinc. This creates a protective layer that prevents corrosion and increases the lifespan of the bars, making them suitable for outdoor applications or environments with high humidity or moisture. These different finishes offer a range of properties and appearances, allowing steel round bars to be used in various industries and applications such as construction, automotive, manufacturing, and engineering. It is important to consider the specific requirements and conditions of the intended use when selecting the appropriate finish for steel round bars.
- Q:How do steel round bars compare to other materials like aluminum or titanium?
- Steel round bars have numerous advantages over materials like aluminum or titanium. Firstly, steel is renowned for its exceptional strength and durability, possessing a high tensile strength that enables it to withstand heavy loads and resist deformation under stress more effectively than aluminum or titanium. This makes steel round bars an excellent option for applications necessitating robust structural support. Moreover, steel boasts a higher melting point in comparison to aluminum, rendering it more suitable for high-temperature environments. It can endure extreme heat without compromising its strength, making it the preferred choice for industries such as construction, manufacturing, and automotive. Furthermore, steel round bars offer a cost-effective solution. Generally, steel is more affordable than titanium, making it a more budget-friendly alternative for a variety of projects. Additionally, steel is readily available and easily sourced, while obtaining titanium can be more challenging and manufacturing it can be more expensive. Nevertheless, it is imperative to acknowledge that aluminum and titanium possess their own unique advantages. Aluminum, for instance, is lightweight and exhibits excellent corrosion resistance, making it the preferred material for industries like aerospace, marine, and automotive. Conversely, titanium is renowned for its exceptional strength-to-weight ratio and corrosion resistance. It is commonly utilized in applications requiring high strength and low weight, such as aircraft components and medical implants. In conclusion, steel round bars offer unparalleled strength, durability, and cost-effectiveness when compared to aluminum or titanium. However, choosing the appropriate material ultimately depends on the specific requirements of the project, as each material possesses distinct advantages and applications.
- Q:Are steel round bars susceptible to corrosion?
- Steel round bars are generally susceptible to corrosion, especially when they are exposed to moisture, oxygen, and certain chemicals. Corrosion occurs when a metal reacts with its environment, leading to the degradation of the material. Steel, being an alloy primarily made of iron, can undergo various types of corrosion, such as general corrosion, pitting corrosion, and stress corrosion cracking. In the presence of oxygen and moisture, steel round bars can undergo general corrosion, which is the gradual deterioration of the material by forming an oxide layer on its surface. This can result in the loss of material and a decrease in strength over time. Pitting corrosion is another type of corrosion that steel round bars may experience. It occurs when localized areas on the surface of the metal become damaged, leading to the formation of small pits. These pits can deepen and expand, leading to structural issues and reduced integrity. Stress corrosion cracking is a specific type of corrosion that can affect steel round bars under tensile stress and in the presence of specific corrosive agents. This phenomenon can lead to the sudden failure of the material, even at stress levels below its yield strength. To mitigate the susceptibility to corrosion, steel round bars are often coated with protective layers or treated with corrosion inhibitors. Common methods include galvanization, where a layer of zinc is applied to the surface, or the use of coatings such as epoxy or paint. Additionally, regular maintenance and proper storage can help prevent excessive exposure to corrosive elements. It is important to note that the susceptibility to corrosion can vary depending on the specific grade and composition of the steel used in the round bars. Certain types of stainless steel, for example, are more resistant to corrosion due to the presence of chromium and other alloying elements. Overall, while steel round bars are susceptible to corrosion, appropriate preventive measures can be taken to minimize the risk and extend their lifespan.
- Q:What are the different grades of steel used in round bars?
- There are various grades of steel used in round bars, each with its own unique properties and applications. Some commonly used grades include: 1. Mild Steel (Grade 1018): This is a low carbon steel with good machinability and weldability. It is often used in general engineering applications, such as construction, automotive, and machinery. 2. Carbon Steel (Grade 1045): Carbon steel is a medium carbon steel with high tensile strength and good wear resistance. It is commonly used in shafts, axles, gears, and other high-stress applications. 3. Alloy Steel (Grades 4140, 4340): Alloy steels contain additional elements such as chromium, molybdenum, or nickel to enhance their mechanical properties. These grades offer excellent strength, toughness, and wear resistance and are often used in applications that require high strength and durability, such as automotive parts, aircraft components, and industrial machinery. 4. Stainless Steel (Grades 304, 316): Stainless steel is a corrosion-resistant steel that contains a minimum of 10.5% chromium. It is widely used in various industries, including food processing, chemical, and medical, due to its excellent corrosion resistance, heat resistance, and aesthetic appeal. 5. Tool Steel (Grades A2, D2): Tool steels are specifically designed to have high hardness, wear resistance, and toughness. They are commonly used in the manufacturing of cutting tools, dies, and molds. These are just a few examples of the different grades of steel used in round bars. The selection of the appropriate grade depends on the specific application requirements, including strength, corrosion resistance, heat resistance, and machinability.
- Q:Can steel round bars be machined using CNC equipment?
- Indeed, CNC equipment is capable of machining steel round bars. By utilizing computer programs to govern the movement of cutting tools, CNC machines can execute a vast array of operations on diverse materials, including steel round bars. These operations encompass turning, milling, drilling, and threading, effectively achieving the desired shape, dimensions, and surface finish. Notably, CNC machines exhibit exceptional repeatability, consistency, and efficiency, rendering them an optimal selection for machining steel round bars in industries such as automotive, aerospace, construction, and manufacturing.
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Steel Round Bar Reliable Manufacturers from China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 554 m.t.
- Supply Capability:
- 2000000 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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