GB 45#/SAE 1045 Steel Round Bar 20mm/25mm
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t
- Supply Capability:
- 10000 m.t/month
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Quality Product, Order Online Tracking, Timely Delivery
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GB 45#/SAE 1045 Steel Round Bar 20mm/25mm
Description：
-Specification: 20mm/25mm
-Length: 6m/12m
-Standard: GB/SAE/Japanese Standard
-Material: GB 45#/SAE1045/S45C
Chemical Composition of GB 45#/SAE 1045 Steel Round Bar 20mm/25mm:
| C | Si | Mn | P | S | Ni | Cr | Cu |
| 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 |
Packaging & Delivery of GB 45#/SAE 1045 Steel Round Bar 20mm/25mm:
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 45 days
MOQ: 50 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 and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Payment:
-Invoicing on theoretical weight or actual weight as customer's request.
-FOB, CFR or CIF.
-Regular terms of payment:
1, 30% payment in advance, the remaining balance (70% payment) against the copy of B/L.
2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L.
3, Negotiable.
Images of GB 45#/SAE 1045 Steel Round Bar 20mm/25mm:
*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:How are steel round bars used in the mining industry?
- The mining industry extensively utilizes steel round bars for various purposes. Underground support systems heavily rely on these bars, commonly employed as roof bolts or rock bolts, to prevent cave-ins or roof falls. In the manufacturing of drilling equipment, steel round bars are frequently transformed into drill rods or drill bits. This conversion allows them to endure the challenging conditions associated with mining operations. The bars are typically subjected to heat treatment to enhance hardness and resistance to wear, ensuring their durability during drilling processes. Within the mining field, steel round bars have another significant application in the production of grinding media for grinding mills. Termed grinding rods, these bars consist of high-quality steel and possess specific hardness and toughness. Their function is to effectively reduce ore particles into smaller sizes, facilitating the extraction of valuable minerals. Furthermore, steel round bars contribute to the construction of conveyor systems in mining operations. They are commonly employed as support bars or rollers in conveyor belts, ensuring the efficient transportation of mined materials from one location to another. To summarize, steel round bars hold a crucial position in the mining industry. Their diverse applications, ranging from providing support in underground mines to manufacturing drilling equipment and grinding media, contribute to the overall efficiency and productivity of mining operations.
- Q:Can steel round bars be used in the construction of bridges?
- Yes, steel round bars can be used in the construction of bridges. They provide structural strength, durability, and flexibility, making them suitable for various components such as piers, beams, and reinforcements. The high tensile strength of steel round bars allows for the construction of longer and larger bridges, ensuring stability and safety. Additionally, steel is resistant to corrosion, which is crucial in bridge construction due to exposure to environmental elements.
- Q:Can steel round bars be used for hydraulic cylinder applications?
- Yes, steel round bars can be used for hydraulic cylinder applications. Steel round bars are commonly used in the manufacturing of hydraulic cylinders due to their high strength, durability, and resistance to corrosion. Additionally, steel round bars can be machined to precise dimensions, allowing for the creation of custom hydraulic cylinder components.
- Q:What are the different grades of alloy steel round bars for automotive applications?
- Automotive applications commonly utilize alloy steel round bars due to their exceptional strength, durability, and resistance to wear and corrosion. The grading of these bars is typically based on their chemical composition, mechanical properties, and appropriateness for specific automotive uses. Here are several distinct grades of alloy steel round bars frequently employed in automotive applications: 1. 4140/42CrMo4: Renowned for its high tensile strength, good toughness, and excellent fatigue strength, this grade of alloy steel round bars is extensively employed in gears, crankshafts, axles, and suspension components. 2. 8620: Offering exceptional hardenability, this grade of alloy steel round bars can be subjected to heat treatment to attain high strength and toughness. It is commonly utilized in shafts, gears, and camshafts. 3. 4340: Known for its impressive strength and toughness, this grade of alloy steel round bars provides good wear resistance and can be heat treated to achieve even greater hardness and strength. It is often used in connecting rods, crankshafts, and high-stress components. 4. 52100: This high carbon, chromium alloy steel is renowned for its outstanding hardness and wear resistance. It is commonly employed in applications such as bearings and races that require high strength and durability. 5. 316L: Recognized for its exceptional corrosion resistance, particularly in harsh environments, this grade of alloy steel round bars is frequently utilized in automotive applications like exhaust systems, where resistance to corrosion is crucial. 6. 4340M: Specifically designed for high-performance automotive applications, this modified version of the 4340 grade offers improved fatigue strength and toughness. It is suitable for demanding applications, including high-performance engine components. These examples represent only a few of the various grades of alloy steel round bars employed in automotive applications. The selection of a specific grade depends on the requirements of the application, including desired strength, toughness, wear resistance, and corrosion resistance.
- Q:Can steel round bars be used for making shafts?
- Yes, steel round bars can be used for making shafts. Steel round bars are widely used in various industries for making shafts due to their high strength and durability. They can withstand heavy loads, resist bending and twisting forces, and provide excellent performance in applications that require the transmission of power or rotational movement. Steel round bars also offer good machinability, allowing them to be easily shaped and formed into shafts of different sizes and dimensions. Additionally, steel round bars can be heat treated to enhance their strength and hardness, further making them suitable for shafts in demanding environments. Overall, steel round bars are a popular choice for making shafts due to their inherent properties and reliability in various industrial applications.
- Q:What are the different types of steel round bar finishes for decorative purposes?
- There are several different types of steel round bar finishes that are commonly used for decorative purposes. These finishes can enhance the aesthetic appeal and overall look of the steel round bar, making it suitable for various decorative applications. Some of the most popular finishes include: 1. Polished Finish: This is a smooth and shiny finish achieved by polishing the steel round bar using abrasives. It gives a reflective, mirror-like surface that adds a touch of elegance and sophistication to any decorative project. 2. Brushed Finish: Also known as satin finish, this type of finish is achieved by brushing the steel round bar with a fine abrasive material, creating a textured pattern. It provides a slightly matte appearance, making it suitable for contemporary or industrial-style decorative applications. 3. Hammered Finish: This finish involves striking the steel round bar with a hammer, creating a textured and hammered surface. It gives a rustic and aged appearance, making it ideal for decorative items with a vintage or antique-inspired theme. 4. Blackened Finish: This finish is achieved by applying a chemical or heat treatment to the steel round bar, resulting in a darkened or blackened appearance. It adds a sleek and modern touch to decorative projects, making it a popular choice for contemporary designs. 5. Powder Coated Finish: Powder coating is a durable and long-lasting finish where a powdered paint is electrostatically applied to the steel round bar and then cured under heat. This finish allows for a wide range of color options and provides excellent protection against corrosion, making it suitable for both indoor and outdoor decorative applications. These are just a few examples of the different types of steel round bar finishes that can be used for decorative purposes. Choosing the right finish depends on the desired aesthetic, style, and overall theme of the decorative project.
- Q:How do you store excess steel round bars?
- Excess steel round bars can be stored by utilizing proper stacking techniques and ensuring a clean and dry storage area. It is recommended to stack the bars horizontally, with sturdy supports at regular intervals to prevent bending or deformation. Additionally, storing them in a covered area or using protective covers can help prevent corrosion and maintain the quality of the bars.
- Q:How are steel round bars heat treated?
- To enhance the strength and hardness of steel round bars, as well as improve their mechanical properties, they undergo a heat treatment process comprising of three main steps: heating, soaking, and cooling. To begin with, the steel round bars are subjected to heating at a specific temperature referred to as the austenitizing temperature. This temperature is typically higher than the critical temperature of the steel, enabling the material to transform into its austenite phase. The exact austenitizing temperature varies depending on the type of steel and the desired properties. Once the steel round bars reach the austenitizing temperature, they are then soaked at this temperature for a specific duration. This soaking period ensures a complete transformation of the microstructure, promoting uniformity and preventing any thermal gradients within the material. The duration of soaking plays a vital role in determining the ultimate properties of the steel. After the soaking phase, the steel round bars undergo rapid cooling through a process known as quenching. Quenching is typically achieved by immersing the bars in a quenching medium, such as oil, water, or air, depending on the desired hardness and properties. The quenching process swiftly cools the bars, resulting in a martensitic transformation within the steel's microstructure. This transformation contributes to increased hardness and strength. Subsequently, the steel round bars may undergo an additional step called tempering. Tempering involves reheating the bars to a lower temperature, usually below the austenitizing temperature. This step aims to alleviate the brittleness caused by the quenching process while further enhancing the material's toughness and ductility. In summary, the heat treatment process for steel round bars involves heating to the austenitizing temperature, soaking for a specific duration, quenching to rapidly cool and harden the material, and potentially tempering to achieve the desired properties. This process allows for the customization and improvement of the steel's mechanical properties, making it suitable for a wide range of applications.
- Q:What is the difference between a centerless ground and a polished steel round bar?
- A centerless ground steel round bar is a type of steel bar that has been ground to achieve precise dimensions and a smooth surface finish. The grinding process involves removing material from the outer diameter of the bar, resulting in a consistent diameter and improved dimensional accuracy. On the other hand, a polished steel round bar is a steel bar that has been subjected to a polishing process to enhance its appearance and provide a reflective, shiny surface. While both processes improve the surface finish, centerless grinding focuses more on dimensional accuracy and consistency, while polishing emphasizes aesthetics and visual appeal.
- Q:How do you calculate the weight of a steel round bar?
- To calculate the weight of a steel round bar, you can use the formula: Weight = (Diameter^2 / 4) * Length * Density In this formula, the Diameter refers to the diameter of the round bar, Length represents the length of the bar, and Density is the density of the steel material. First, you need to measure the diameter of the steel round bar accurately. Then, square the diameter by multiplying it by itself. Divide the result by 4. This will give you the cross-sectional area of the round bar. Next, multiply the cross-sectional area by the length of the bar. Finally, multiply this value by the density of the steel material. The density of steel is typically around 7850 kg/m^3. The result of this calculation will give you the weight of the steel round bar in grams or kilograms, depending on the units used for the length and density.
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GB 45#/SAE 1045 Steel Round Bar 20mm/25mm
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t
- Supply Capability:
- 10000 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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