Carbon Structural Steel Round Bars ASTM A36
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 120000 m.t./month
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Carbon Structural Steel Round Bars ASTM A36
PRODUCT SPECIFICATION
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr | Cu |
| ASTM A36 | ≤0.25 | ≤0.40 | 0.80-1.20 | ≤0.050 | ≤0.040 | ≥0.30 | ≥0.20 |
2, Diameter: 9mm - 80mm
APPLICATION
1. Manufacturing of mechanical parts
2. Welding structure building
3. Bridge engineering with higher quality requirements
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.
PRODUCT SHOW
ABOUT US
- Q: What are the different types of steel round bars used in the automotive aftermarket?
- There are several different types of steel round bars commonly used in the automotive aftermarket. These include: 1. Carbon Steel Round Bars: Carbon steel is a commonly used material in the automotive industry due to its high strength and durability. It is often used in applications that require heavy-duty performance, such as suspension components, drive shafts, and steering linkages. 2. Alloy Steel Round Bars: Alloy steel is a type of steel that has been alloyed with other elements to enhance its mechanical properties. It is commonly used in the automotive aftermarket for applications that require high strength, such as crankshafts, camshafts, and axles. 3. Stainless Steel Round Bars: Stainless steel is known for its corrosion resistance and aesthetic appeal. It is often used in automotive aftermarket applications that require resistance to harsh environments, such as exhaust systems, trim components, and decorative elements. 4. Tool Steel Round Bars: Tool steel is a type of high-carbon steel that is specifically designed for tooling and machining applications. It is commonly used in the automotive aftermarket for manufacturing specialized tools, dies, and molds. 5. Bearing Steel Round Bars: Bearing steel is a type of high-carbon steel that is specifically designed for bearing applications. It is commonly used in the automotive aftermarket for manufacturing bearings and other rotating components. These are just a few examples of the different types of steel round bars used in the automotive aftermarket. The specific type of steel chosen for a particular application will depend on factors such as the required strength, durability, and corrosion resistance.
- Q: Can steel round bars be used in the manufacturing of fasteners?
- Yes, steel round bars can be used in the manufacturing of fasteners. Steel round bars are often used as raw materials to create fasteners such as screws, bolts, and nuts. The round shape of the bars allows for easy shaping and machining to meet the desired specifications of the fasteners. Additionally, steel is a strong and durable material that provides the necessary strength and resilience required for fasteners to withstand various applications and loads. Therefore, steel round bars are commonly utilized in the manufacturing of fasteners due to their mechanical properties and versatility.
- Q: How do you calculate the shear strength of a steel round bar?
- To calculate the shear strength of a steel round bar, you need to know its diameter and the material's shear modulus. The shear strength is determined by dividing the maximum load the bar can withstand before it shears by its cross-sectional area. The formula to calculate the shear strength is as follows: Shear Strength = Maximum Load / Cross-sectional Area To find the cross-sectional area, you need to calculate the area of a circle using the diameter of the round bar. The formula for the area of a circle is: Area = π * (Diameter/2)^2 Once you have the maximum load and the cross-sectional area, you can substitute these values into the shear strength formula to determine the shear strength of the steel round bar. It's important to note that the shear modulus is a critical factor in the calculation. The shear modulus represents the material's resistance to deformation and measures how much shear stress the material can withstand before it starts to deform. The shear modulus value can be obtained from reference materials or technical specifications provided by the manufacturer.
- Q: What are the different surface defects that can be found in steel round bars?
- Some common surface defects that can be found in steel round bars include scratches, pits, cracks, scale, and decarburization.
- Q: How are steel round bars tested for quality and strength?
- To ensure that steel round bars meet the necessary standards and specifications, various methods are employed to test their quality and strength. One commonly used test is the tensile test, which measures the bar's ability to withstand tension. In this test, a sample of the steel bar is gradually loaded until it reaches its breaking point, and the maximum load it can handle is recorded, along with the sample's elongation and reduction in area. These values offer valuable insights into the bar's strength and ductility. Another test employed is the hardness test, which assesses the steel bar's resistance to indentation or penetration. This test utilizes a hardness testing machine that applies a specific force to a small indenter, such as a diamond or a steel ball, and measures the resulting indentation's depth or size. The obtained hardness values can indicate the bar's strength and its ability to withstand wear and deformation. Apart from these mechanical tests, non-destructive testing methods are also used for steel round bars. Ultrasonic testing is a common technique employed to identify internal defects or inconsistencies in the bar's structure. This method involves transmitting high-frequency sound waves through the bar and analyzing the reflected waves to detect any irregularities. Magnetic particle inspection is another non-destructive test that relies on magnetic fields and particles to identify surface or near-surface defects in the steel bar. Chemical analysis plays a crucial role in determining the quality of steel round bars. This analysis involves testing the steel's composition to ensure it meets the required chemical specifications. It helps identify the presence of impurities or elements that could impact the bar's performance and durability. In summary, steel round bars undergo a combination of mechanical, non-destructive, and chemical tests to evaluate their quality and strength. These tests provide manufacturers with essential information, enabling them to ensure that the bars meet the necessary standards and are suitable for their intended applications.
- Q: How do steel round bars perform under torsion or twisting forces?
- Steel round bars perform very well under torsion or twisting forces due to their high tensile strength and excellent resistance to deformation. They have a strong resistance to twisting and can withstand significant torque without breaking or deforming. This makes them suitable for applications where torsional stresses are involved, such as in shafts, axles, and other mechanical components.
- Q: How do steel round bars perform under torsion or twisting forces?
- Steel round bars are known for their excellent performance under torsion or twisting forces. Due to their inherent strength and stiffness, steel round bars are capable of withstanding high levels of torque without significant deformation or failure. When subjected to torsion, steel round bars exhibit a phenomenon known as elastic behavior. Initially, the bar will twist and deform elastically, meaning it will return to its original shape once the twisting forces are removed. This elastic deformation is proportional to the applied torque, following Hooke's law. However, if the torsional forces exceed the elastic limit of the steel round bar, it will undergo plastic deformation. This means that the bar will permanently twist and will not return to its original shape once the forces are released. The amount of plastic deformation depends on the magnitude and duration of the torsional forces. Steel round bars are highly resistant to torsional failure due to their high tensile strength, which allows them to withstand significant twisting forces. Additionally, the smooth and uniform surface of the round bars reduces the likelihood of stress concentrations, further enhancing their torsional performance. It is important to note that the performance of steel round bars under torsion can be influenced by factors such as alloy composition, heat treatment, and manufacturing processes. By selecting suitable grades of steel and employing appropriate processing techniques, the torsional strength and performance of steel round bars can be further optimized to meet specific application requirements.
- Q: Can steel round bars be used in the aerospace manufacturing industry?
- The aerospace manufacturing industry can indeed utilize steel round bars. In various aerospace applications like structural components, landing gear, engine components, and fasteners, steel round bars are a common choice. The reason behind this is the commendable strength and durability of steel, which makes it highly suitable for critical aerospace applications. Moreover, steel round bars can be conveniently machined and shaped into intricate forms, offering customization and precise engineering solutions in the aerospace sector. Furthermore, steel's ability to resist corrosion and withstand extreme temperatures enhances its reliability in aerospace manufacturing. Ultimately, due to their strength, durability, machinability, and corrosion resistance, steel round bars emerge as a versatile and extensively employed material in the aerospace industry.
- Q: What is the difference between a cold-drawn and a polished steel round bar?
- A cold-drawn steel round bar and a polished steel round bar differ in their manufacturing processes and resulting properties. A cold-drawn steel round bar is produced by pulling or drawing a hot-rolled steel bar through a die or series of dies to reduce its diameter and increase its length. This process is done at room temperature, which imparts certain characteristics to the steel. Cold-drawn steel bars have a smooth and shiny surface, with tight dimensional tolerances and improved mechanical properties. The cold drawing process refines the microstructure of the steel, making it stronger, more uniform, and less prone to defects. These bars are commonly used in applications that require high strength, precision, and resistance to fatigue, such as automotive components, machinery, and tooling. On the other hand, a polished steel round bar undergoes a different treatment process. After the steel bar is formed, it goes through polishing, which involves grinding or buffing the surface to achieve a smooth and reflective finish. Polished steel bars have a shiny and mirror-like appearance due to the removal of surface imperfections and contaminants. This process is primarily done for aesthetic purposes and does not significantly alter the mechanical properties of the steel. Polished steel round bars are commonly used in decorative applications, architectural designs, and furniture. In summary, the main difference between a cold-drawn and a polished steel round bar lies in their manufacturing processes and intended applications. Cold-drawn bars undergo a precise cold drawing process to improve their mechanical properties, while polished bars are subjected to surface polishing for an aesthetically pleasing finish.
- Q: Can steel round bars be used for making storage tanks?
- Yes, steel round bars can be used for making storage tanks. Steel is a versatile and widely used material in various industries, including the manufacturing of storage tanks. Steel round bars are known for their strength, durability, and resistance to corrosion, making them suitable for storing a wide range of substances, including liquids and gases. The round shape of the bars allows for easy fabrication and assembly, ensuring the structural integrity of the storage tank. Additionally, steel round bars can be easily welded or bolted together, allowing for customization and flexibility in tank design. Overall, steel round bars are a popular choice for making storage tanks due to their reliability, longevity, and ability to withstand high pressure and extreme environmental conditions.
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Carbon Structural Steel Round Bars ASTM A36
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 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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