Q345 Steel Round Bar
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- Loading Port:
- China Main Port
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Specifications of Steel Round Bar:
1. Standard: GB
2. Grade: Q345
3. Invoicing on theoretical weight or actual weight as customer’s request
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled
Size:
| Size (mm) | Section Area (cm2) | Mass (Kg/m) |
| 50 | 1962.5 | 15.4 |
| 80 | 5024 | 39.5 |
| 100 | 7850 | 61.7 |
Packaging & Delivery of Steel Round Bar:
Packaging Detail: Standard seaworthy packing or as customer required; all goods are packed in bundle with steel strips and shipped by break bulk vessel or container
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF or as customer required
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request.
Documents given: Full set (3/3) of original clean on board bill of lading; Original signed commercial invoice, in 3 originals and 3 copies; Original packing list in 3 originals and 3 copies; Policy of insurance; Certificate of origin and what the target market needs.
* If you would like to get our price, please inform us the size, standard/material and quantity. Thank you very much for your attention.
- Q: What are the common alloying elements used in steel round bars?
- The common alloying elements used in steel round bars are carbon, manganese, silicon, and sometimes chromium, nickel, and molybdenum.
- Q: What are the advantages of using duplex steel round bars?
- Duplex steel round bars offer numerous benefits for various applications. Firstly, they provide exceptional resistance to corrosion. By combining chromium, nickel, and molybdenum, this steel can withstand harsh conditions found in marine and chemical industries. This makes it ideal for high exposure to corrosive elements. Secondly, duplex steel round bars possess great strength and toughness. The unique microstructure of this steel, combining ferrite and austenite phases, results in greater strength compared to traditional stainless steels. This makes them suitable for demanding applications requiring high load-bearing capacities. Additionally, duplex steel round bars exhibit excellent fatigue resistance. This makes them perfect for applications subjected to cyclic loading or dynamic stress, such as structural components or machinery parts. Their fatigue resistance allows for extended service life and reliability. Another advantage of using duplex steel round bars is their superior weldability. Their balanced chemical composition and microstructure enable easy fabrication and joining, reducing production time and costs in various industries. Furthermore, duplex steel round bars demonstrate exceptional resistance to stress corrosion cracking (SCC). This makes them a preferred choice for applications with a high risk of SCC, such as offshore and oil and gas industries. Lastly, duplex steel round bars provide cost-effective solutions. Despite their superior properties, they are often more cost-effective than other high-performance materials. Their long service life, reduced maintenance requirements, and overall durability contribute to lower lifecycle costs, making them an economical choice for various applications. In conclusion, duplex steel round bars offer excellent corrosion resistance, high strength and toughness, good fatigue resistance, superior weldability, resistance to stress corrosion cracking, and cost-effectiveness. These properties make them a preferred choice for industries such as oil and gas, chemical processing, marine, and structural applications.
- Q: What is the difference between a polished and a cold drawn steel round bar?
- A polished steel round bar refers to a steel bar that has undergone a polishing process, which involves using abrasive materials to remove any surface imperfections and create a smooth, shiny finish. Polishing enhances the aesthetic appearance of the steel bar and improves its corrosion resistance. This process is commonly used for decorative or architectural applications where the visual appeal is important. On the other hand, a cold drawn steel round bar is produced through a different manufacturing process. In this method, a steel bar is pulled through a die at room temperature to reduce its diameter and increase its length. This process results in a bar with a more precise and uniform diameter, as well as improved mechanical properties such as higher tensile strength and dimensional accuracy. Cold drawing also enhances the surface finish, but it may not achieve the same level of smoothness and shine as a polished bar. In summary, the main difference between a polished and a cold drawn steel round bar lies in the manufacturing process and the resulting properties. Polishing provides a smooth and shiny finish for aesthetic purposes, while cold drawing improves the dimensional accuracy and mechanical properties of the steel bar.
- Q: How are steel round bars inspected for quality?
- Steel round bars are inspected for quality through various methods such as visual inspection, dimensional measurements, and non-destructive testing techniques. These inspections involve checking for surface defects, ensuring accurate dimensions, and detecting any internal flaws or inconsistencies. Additionally, quality control measures may include hardness testing, chemical analysis, and mechanical property evaluations to ensure the steel bars meet the required standards and specifications.
- Q: How do steel round bars compare to plastic or composite bars?
- Steel round bars are generally considered to be stronger and more durable compared to plastic or composite bars. They have higher tensile strength, can withstand heavier loads, and are less prone to bending or breaking. Additionally, steel bars offer better resistance to harsh weather conditions, corrosion, and fire. However, plastic or composite bars can be more lightweight and cost-effective, making them suitable for certain applications where weight or budget is a concern. Overall, the choice between steel, plastic, or composite bars depends on the specific requirements of the project or application.
- Q: How do you measure the straightness of a steel round bar?
- To measure the straightness of a steel round bar, there are a few methods that can be used. One common method is to use a straight edge or ruler and place it along the length of the bar, checking for any gaps or deviations. If the bar is perfectly straight, it should be in contact with the straight edge along its entire length. Any gaps or deviations indicate that the bar is not perfectly straight. Another method is to use a laser alignment system. This involves placing the round bar on a flat surface and using a laser to project a line along its length. The laser will show any deviations or bends in the bar by the way the line is projected. This method provides a more accurate measurement of straightness. In addition, a precision measuring instrument called a dial indicator can be used. This device has a small probe that is placed against the surface of the round bar. As the bar is rotated, the dial indicator will measure any variations in the surface, indicating any bends or deviations from straightness. It is important to note that the level of straightness required will depend on the specific application of the steel round bar. In some cases, a minor deviation may be acceptable, while in others, a high degree of straightness may be necessary.
- Q: How do steel round bars compare to aluminum round bars?
- Steel round bars and aluminum round bars have several key differences in terms of their properties and applications. Strength and durability: Steel round bars are generally stronger and more durable than aluminum round bars. Steel has a higher tensile strength and can withstand higher loads and stresses compared to aluminum. This makes steel round bars suitable for heavy-duty applications where strength and durability are critical, such as construction projects or manufacturing machinery. Aluminum round bars, on the other hand, are less strong and more prone to bending or breaking under heavy loads, so they are typically used in lighter applications or where weight savings are important. Weight: Aluminum round bars are significantly lighter than steel round bars. This makes aluminum a popular choice in industries where weight is a crucial factor, such as aerospace or automotive manufacturing. The lightweight nature of aluminum round bars also makes them easier to handle and transport. Corrosion resistance: Aluminum round bars have excellent corrosion resistance due to the formation of a protective oxide layer on their surface. This oxide layer acts as a barrier, preventing further corrosion and making aluminum ideal for outdoor applications or in environments with high humidity or exposure to chemicals. Steel round bars, on the other hand, are more prone to rust and corrosion, so they require protective coatings or treatments to enhance their resistance to corrosion. Cost: Steel round bars are generally more cost-effective compared to aluminum round bars. Steel is a widely available and commonly used material, making it more affordable in most cases. Aluminum, on the other hand, is more expensive due to its production process and the higher energy requirements involved. Thermal conductivity: Aluminum round bars have excellent thermal conductivity, meaning they can efficiently transfer heat. This makes them suitable for applications where heat dissipation is crucial, such as heat sinks or electrical conductors. Steel round bars, while conducting heat to some extent, have lower thermal conductivity compared to aluminum. In summary, steel round bars are stronger, more durable, and cost-effective, making them suitable for heavy-duty applications. Aluminum round bars, on the other hand, are lighter, have excellent corrosion resistance, and superior thermal conductivity, making them ideal for lightweight applications and industries where weight savings or heat dissipation are critical. Ultimately, the choice between steel and aluminum round bars depends on the specific requirements of the application.
- Q: Are steel round bars suitable for use in the aerospace industry?
- Yes, steel round bars are suitable for use in the aerospace industry. Steel round bars offer excellent strength and durability, making them an ideal choice for various applications in aerospace engineering. They have a high tensile strength and can withstand extreme temperatures and pressures often encountered in aerospace operations. Steel round bars also have good corrosion resistance, which is crucial for maintaining structural integrity in aircraft exposed to different environmental conditions. Moreover, their machinability and weldability make them versatile for manufacturing components and structures in the aerospace industry. Overall, steel round bars are a reliable and cost-effective material choice for aerospace applications.
- Q: Can steel round bars be machined?
- Yes, steel round bars can be machined. Machining is a process that involves the removal of material from a workpiece to create the desired shape, size, or finish. Steel round bars are commonly machined to create various components, such as shafts, bolts, and fasteners. Machining processes such as turning, milling, drilling, and grinding can be used to shape and cut the steel round bars. However, the machinability of steel can vary depending on factors such as the composition and hardness of the steel, cutting tools, and machining parameters. It is important to use appropriate machining techniques and tools to ensure accurate and efficient results while machining steel round bars.
- Q: Is round steel round steel?
- Round steel is a solid strip of steel whose cross section is round. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter.
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Q345 Steel Round Bar
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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