Steel Round Bar-Standard GB

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Supply Capability:: -

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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)
25	490.625	3.85
26	530.66	4.17
28	615.44	4.83

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 is the typical tolerance for diameter and length in steel round bars?: The tolerance for diameter and length in steel round bars can vary depending on the industry standards and requirements specific to each sector. Generally, the tolerance for diameter in steel round bars is typically between +/- 0.005 and 0.010 inches. This means that the bar's actual diameter can deviate up to 0.010 inches from the specified diameter, either larger or smaller. Likewise, the tolerance for length in steel round bars is usually around +/- 0.125 to 0.250 inches. Consequently, the actual length of the bar can differ up to 0.250 inches from the specified length, either longer or shorter. It is essential to highlight that these tolerances can differ based on the intended application and the manufacturing industry's specific standards. Therefore, it is vital to refer to the relevant industry standards or the manufacturer's specifications to determine the precise tolerances required for a specific steel round bar.

Q: Can steel round bars be customized or fabricated?: Yes, steel round bars can be customized or fabricated to meet specific requirements. Steel round bars are commonly used in various industries such as construction, manufacturing, and engineering. They can be customized in terms of diameter, length, surface finish, and even material composition. Customization of steel round bars can be done through various processes. For example, the bars can be cut to the desired length using techniques like sawing or shearing. They can also be bent or shaped using heat and mechanical force to achieve specific angles or curves. Additionally, the surface finish of the bars can be altered through processes like grinding, polishing, or coating. Furthermore, steel round bars can be fabricated to include additional features or components. For instance, holes or slots can be drilled or machined into the bars to accommodate other parts or fasteners. They can also be threaded or grooved to allow for easy assembly or connection with other components. In summary, steel round bars can be customized or fabricated in various ways to suit specific needs. Whether it is altering the dimensions, shape, surface finish, or adding additional features, steel round bars offer flexibility and versatility in meeting different requirements across industries.

Q: Can steel round bars be used for making gears?: Certainly! Gears can indeed be made using steel round bars. The reason for their widespread use in gear manufacturing lies in their outstanding strength, longevity, and ability to withstand damage. These bars can be processed, subjected to heat treatment, and molded into different types of gears, including spur gears, helical gears, and bevel gears. Steel round bars provide exceptional accuracy and dependability, making them ideal for applications demanding durable and high-performing gears, like automotive transmissions, industrial machinery, and power transmission systems.

Q: What are the advantages of using precipitation-hardening steel round bars?: There are several advantages of using precipitation-hardening steel round bars. Firstly, these bars offer high strength and toughness, making them suitable for applications that require heavy load-bearing capacity. Secondly, they have excellent corrosion resistance, making them ideal for use in harsh environments or exposed to corrosive elements. Additionally, precipitation-hardening steel round bars can be easily machined and formed into various shapes, providing versatility in design and manufacturing. Lastly, these bars possess good dimensional stability, ensuring consistent performance and reliable results in critical applications.

Q: What is the difference between 40Cr round steel and 40Cr forging parts?: But 40Cr forgings are objects that are subjected to pressure by plastic deformation to shape a desired shape or suitable compressive force. (usually done by using hammers or pressure). The casting process constructed a fine grain structure and improved the physical properties of the metal.

Q: What are the different types of steel round bars used in the automotive braking systems?: There are several different types of steel round bars that are commonly used in automotive braking systems. These types of steel are specifically chosen for their strength, durability, and ability to withstand the high temperatures and pressures that are generated during braking. One commonly used type of steel round bar is carbon steel. This type of steel is known for its high strength and excellent hardness. Carbon steel round bars are often used in the manufacturing of brake rotors and brake drums. They are able to withstand the friction and heat generated during braking, ensuring reliable performance and longevity. Another type of steel round bar used in automotive braking systems is stainless steel. Stainless steel is highly resistant to corrosion and rust, making it ideal for brake lines and fittings. It also has good heat resistance properties, allowing it to withstand the thermal stresses generated during braking. Some automotive braking systems also utilize alloy steel round bars. Alloy steel is a combination of different metals, such as chromium, nickel, and molybdenum, which enhance its mechanical properties. Alloy steel round bars are known for their high tensile strength and toughness, making them suitable for applications that require a high level of performance and durability. In addition to these commonly used types of steel round bars, there are also specialized types that are designed for specific applications within automotive braking systems. For example, heat-treated steel round bars are used in the manufacturing of brake calipers and pistons, as they can withstand the extreme temperatures generated by the friction between the brake pads and rotors. Overall, the choice of steel round bar in automotive braking systems depends on the specific requirements of the application, such as strength, durability, heat resistance, and corrosion resistance. By selecting the appropriate type of steel, automotive manufacturers can ensure the safety and reliability of their braking systems.

Q: How can steel round bars be protected against corrosion?: There are several methods available to protect steel round bars from corrosion. One commonly used technique involves applying a protective coating, such as paint or epoxy, to create a barrier between the steel surface and the corrosive elements in the surrounding environment. This coating effectively reduces the risk of corrosion by preventing direct contact. Another effective approach is galvanizing the steel round bars. This process involves coating the steel with a layer of zinc, which acts as a sacrificial anode. By sacrificing itself, the zinc layer prevents the steel from corroding and provides long-lasting protection. Regular maintenance and inspection play a crucial role in corrosion prevention. It is important to remove any rust or scale that may have formed on the steel round bars, as these can accelerate the corrosion process. Additionally, keeping the bars dry and free from moisture is essential, as prolonged exposure to water or humidity can lead to corrosion. In environments where corrosive chemicals are present, it may be necessary to use corrosion-resistant alloys for the steel round bars. Alloys like stainless steel or nickel alloys have higher resistance to corrosion and can withstand harsh conditions better than regular steel. Overall, protecting steel round bars against corrosion requires a combination of proper coatings, regular maintenance, and selecting appropriate materials for the specific environment in which they will be used.

Q: Can steel round bars be used in the automotive parts industry?: Yes, steel round bars can be used in the automotive parts industry. Steel round bars are commonly used in the manufacturing of various automotive components due to their excellent strength, durability, and resistance to wear and tear. These bars can be fabricated into different shapes and sizes to meet the specific requirements of automotive parts such as axles, drive shafts, suspension components, steering components, and gears. The use of steel round bars ensures the structural integrity and reliability of automotive parts, making them ideal for withstanding the demanding conditions and loads experienced in the automotive industry.

Q: Are steel round bars suitable for structural applications?: Indeed, steel round bars are well-suited for structural applications. Renowned for their robustness and resilience, steel round bars prove to be excellent for diverse structural purposes. They exhibit exceptional load-bearing capabilities, thus frequently employed in construction undertakings like bridges, buildings, and infrastructure projects. Moreover, steel round bars possess commendable resistance against corrosion, fire, and severe weather conditions, thereby ensuring the longevity and structural integrity of the application. Their adaptability allows for effortless shaping, welding, and customization to satisfy the project's specific requisites. All in all, steel round bars present themselves as a dependable and cost-efficient option for structural applications.

Q: Are more bars used in high-rise buildings?: To see what kind of structure, frame structure, screw steel is much more used, such as beam column, main reinforcement, partial stirrups, plate reinforcement. The shear wall structure is used in many round bars, such as vertical wall bars, horizontal bars, steel bars and stirrups. Note that only general structures are concerned.

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