Hot Rolled Steel Round Bars for Making Parts
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
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Product Description:
Hot Rolled Steel Round Bars for Making Parts is used for manufacturing ball, roller bearing steel and rings. Bearing in work is under great pressure and friction, so have high demands bearing steel and hardness and resistance, and high elastic limit.
Bearing steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.
For example, bearing ring, steel rolling mill, machinery, 100Cr6 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile, bags electronically.
Product Applications:
Hot Rolled Steel Round Bars for Making Parts are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
1. Steel round bar products is used in construction and a large number of architectural and engineering structures. And it can be used in production of handrail, windows, machinery, telecom and curtain wall.
2. It can be used in the fields like metal mines, cement plants, water coal slurry, power stations and chemical industry.
3. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.
4. Recommended watchcase factory, screw factory and other cold stamping products industry use.
Product Advantages:
OKorder's Hot Rolled Steel Round Bars for Making Parts are durable, strong, and resist corrosion.
1. The steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.
2. As the carbon percentage content rises, steel has the ability to become harder and stronger through heat treating; however it becomes less ductile.
3. Regardless of the heat treatment, higher carbon content reduces weld ability. In carbon steels, the higher carbon content lowers the melting point.
4. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Specifications of Hot Rolled Steel Round Bars for Making Parts
1. Grade: Q235, A36, SS400, S235JR
2. Feature: Unbreakable, grinding resistant and high impact value
3. Diameter: 8mm-150mm
4. Performance: Mainly for civil construction
5. Characteristics: Even hardness, no deformation, no breaking, no mal-roundness
6. Technique: Hot rolled
7. Mass: Mass (kg/m) = Diameter (mm) × Diameter (mm) × 0.00617
Packaging & Delivery of Mild Hot Rolled Steel Round Bars for Bults and Nults
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
Trade terms: FOB, CFR, CIF
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 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.
Production Flow of Hot Rolled Steel Round Bars for Making Parts
Material prepare (billet) — heat up — rough rolling — precision rolling — cooling — packing — storage and transportation
FAQ:
Q1: The products are invoicing on theoritical weight or on actual weight?
A1: We can do it in both manners, according to the customers' request.
Q2: What is the normal tolerance of Hot Rolled Steel Round Bars for Making Parts?
A2: Normally 3%-5%, but we can also produce the goods according to the customers' requests.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
- Q: What is the difference between a bright and a rough turned steel round bar?
- A bright turned steel round bar refers to a steel bar that has undergone a finishing process, resulting in a smooth and polished surface. On the other hand, a rough turned steel round bar has a more textured surface due to minimal finishing, giving it a rougher appearance.
- Q: How do you measure the diameter of a steel round bar?
- In order to determine the diameter of a steel round bar, there are two tools that can be utilized: a caliper or a micrometer. First and foremost, it is crucial to ensure that the round bar is devoid of any dirt, debris, or rough edges. Place the round bar on a level and smooth surface. If a caliper is available, open it and place one jaw on one side of the round bar and the other jaw on the opposite side. It is important to guarantee that the jaws are perpendicular to the bar and in contact with its outer surface. Gradually close the caliper until both jaws are firmly pressed against the bar. The measurement can be read from the caliper's scale or digital display, providing the diameter of the round bar. Alternatively, if a micrometer is at hand, open it and adjust the thimble to zero. Position the anvil, which is the stationary part, against one side of the round bar, and the spindle, which is the moving part, against the opposite side. Rotate the thimble until the spindle makes firm contact with the bar. The measurement can be read from the thimble's scale or digital display, along with the corresponding number on the barrel. This will yield the diameter of the round bar. It is important to remember that in order to ensure accuracy, multiple measurements should be taken at various points along the bar, as the diameter may not be perfectly uniform throughout its length.
- Q: Can steel round bars be heat treated to improve their mechanical properties?
- Yes, steel round bars can be heat treated to improve their mechanical properties. Heat treatment is a process that involves heating the steel to a specific temperature, holding it at that temperature for a certain period of time, and then cooling it rapidly or slowly. This process can alter the microstructure of the steel, resulting in changes to its hardness, strength, toughness, and other mechanical properties. There are several types of heat treatment processes that can be used on steel round bars, depending on the desired outcome. For example, annealing is a heat treatment process that involves heating the steel to a specific temperature and then slowly cooling it. This process helps to relieve internal stresses in the steel, improve its ductility, and make it easier to machine. Another common heat treatment process is quenching and tempering. This involves heating the steel to a specific temperature and then rapidly cooling it, usually by immersing it in a quenching medium such as oil or water. This rapid cooling process helps to harden the steel, making it stronger and more resistant to wear and abrasion. After quenching, the steel is often tempered by reheating it to a lower temperature, which helps to reduce its brittleness and improve its toughness. In addition to annealing and quenching and tempering, other heat treatment processes such as normalizing, case hardening, and precipitation hardening can also be used to improve the mechanical properties of steel round bars. These processes involve different heating and cooling techniques, and are used to achieve specific outcomes based on the desired properties of the steel. Overall, heat treatment is a versatile and effective method for improving the mechanical properties of steel round bars. By carefully controlling the heating and cooling process, it is possible to achieve significant improvements in hardness, strength, toughness, and other properties, making the steel suitable for a wide range of applications.
- Q: What is the difference between a ground and a polished steel round bar?
- A ground steel round bar refers to a bar that has undergone a grinding process to achieve a smooth and precise outer surface. On the other hand, a polished steel round bar refers to a bar that has been polished to enhance its appearance, often resulting in a shiny and reflective surface. While both processes improve the surface quality of the bar, grinding focuses on accuracy and removing imperfections, while polishing is primarily done for aesthetic purposes.
- Q: How are steel round bars used in the manufacturing of mining equipment?
- Steel round bars are an essential component in the manufacturing of mining equipment due to their strength, durability, and versatility. These bars are used in various applications throughout the mining industry, ensuring the reliability and longevity of the equipment. One of the primary uses of steel round bars in mining equipment is for the construction of frames and structural components. The bars provide the necessary structural support, ensuring the overall stability and robustness of the equipment. Whether it is for excavators, drilling rigs, or conveyor systems, steel round bars play a crucial role in maintaining the integrity of the machinery. Moreover, steel round bars are commonly utilized in the manufacturing of mining tools and attachments. These bars can be machined and shaped into different forms, such as shafts, pins, and bolts, which are vital for various mining operations. For example, drill bits used for drilling into rock formations are often made with steel round bars due to their ability to withstand high-pressure conditions. In addition, steel round bars are essential for the fabrication of wear-resistant components in mining equipment. The harsh environments in mining, including abrasive materials and extreme temperatures, necessitate the use of durable materials. Steel round bars with specific alloys and heat treatments can be employed to create wear-resistant parts like cutting edges, teeth, and buckets for excavators, ensuring their longevity and performance. Furthermore, steel round bars are also utilized in the production of support structures and safety features in mining equipment. These bars can be used to create roll cages, protective frames, and guardrails, providing a safe working environment for operators and minimizing the risk of accidents. Overall, steel round bars are a vital component in the manufacturing of mining equipment, contributing to their strength, reliability, and performance. Their use in construction, tool fabrication, wear-resistant components, and safety features ensures the durability and efficiency of mining machinery, enabling the industry to operate effectively and safely.
- Q: What is the difference between a turned and a ground steel round bar?
- A turned steel round bar and a ground steel round bar are two different types of steel bars that have undergone different manufacturing processes. A turned steel round bar is created by rotating a cylindrical steel rod against a cutting tool, which removes material from the surface of the bar to achieve the desired dimensions and finish. This process helps to improve the dimensional accuracy and smoothness of the bar's surface. Turned steel round bars are commonly used in applications that require tight tolerances and a smooth surface finish, such as in precision machining or automotive components. On the other hand, a ground steel round bar is manufactured by passing a turned steel round bar through a grinding machine. This machine uses an abrasive wheel to remove any surface imperfections or irregularities from the bar. The grinding process ensures that the bar has a consistent diameter and a smooth, polished surface. Ground steel round bars are often used in applications that require a high level of precision and surface finish, such as in aerospace components or hydraulic cylinders. In summary, the main difference between a turned and a ground steel round bar lies in the manufacturing processes they undergo. While turned bars are created by cutting material from the surface, ground bars are refined by grinding to achieve superior dimensional accuracy and surface smoothness. The choice between turned and ground steel round bars depends on the specific requirements of the application and the level of precision and surface finish needed.
- Q: Can steel round bars be used for making electrical system components?
- Yes, steel round bars can be used for making electrical system components. However, they may not be the most common choice for such applications. Other materials like copper or aluminum are more often used due to their better electrical conductivity. Steel round bars can still be employed for certain electrical components where conductivity is not the primary concern, such as support structures or housings.
- Q: How do you calculate the weight of a steel round bar based on its length and diameter?
- To calculate the weight of a steel round bar based on its length and diameter, you can use the following equation: Weight = (π/4) x (Diameter^2) x Length x Density Here, π represents the mathematical constant pi (approximately 3.14159), Diameter is the measurement of the steel round bar across its widest point, Length is the overall length of the bar, and Density is the density of steel, which is typically around 7850 kilograms per cubic meter. To calculate the weight, first square the diameter, then multiply it by the length and density. Finally, multiply the result by π/4 to obtain the weight of the steel round bar in the desired units (typically kilograms or pounds). It's important to note that this equation assumes the steel round bar is a solid cylinder with a uniform diameter. If the bar has any variations or irregularities, the weight calculated using this equation may not be entirely accurate.
- Q: Can steel round bars be used for making engine parts?
- Absolutely! Engine parts can indeed be made using steel round bars. In fact, steel round bars are commonly employed in the production of engine components. This is primarily due to their remarkable qualities such as exceptional strength, long-lasting nature, and ability to withstand extreme temperatures and corrosion. These bars can be skillfully shaped and resized to fashion a wide array of engine parts including crankshafts, camshafts, connecting rods, and valves. By utilizing steel round bars, the desired mechanical attributes and structural integrity necessary for optimal engine performance and reliability can be ensured. Furthermore, these bars can be subjected to heat treatment and surface treatment techniques to further augment their properties, rendering them incredibly suitable for engine applications.
- Q: What are the different testing methods used for steel round bars?
- There are several testing methods used for steel round bars to ensure their quality and suitability for various applications. These methods include: 1. Visual Inspection: This is the initial step of testing, where the bars are visually examined for any visible defects, such as cracks, surface irregularities, or improper dimensions. 2. Dimensional checks: Steel round bars undergo dimensional checks to verify their diameter, length, and straightness. Precise measurements are essential to meet the specified requirements. 3. Ultrasonic Testing: Ultrasonic waves are passed through the round bars to detect internal defects, such as cracks, voids, or inclusions. This method helps identify potential weaknesses that may affect the structural integrity of the bars. 4. Magnetic Particle Inspection: This method uses a magnetic field and magnetic particles to detect surface and near-surface defects like cracks, seams, or laps. It is particularly useful in ferromagnetic materials such as steel. 5. Dye Penetrant Inspection: This technique involves applying a colored dye to the surface of the round bars and then wiping it off. The dye penetrates into any surface cracks or defects, making them visible under ultraviolet light. 6. Hardness Testing: This test measures the hardness of the steel round bars using methods like Rockwell or Brinell scales. It helps determine the material's ability to withstand external forces and ensures it meets the required hardness specifications. 7. Tensile Testing: Tensile strength testing is conducted to measure the maximum load a steel round bar can bear before it breaks. This test helps evaluate the material's strength and ductility. 8. Chemical Analysis: Chemical analysis is performed to determine the composition of the steel round bars, including the presence of elements like carbon, manganese, sulfur, phosphorus, and others. It ensures that the steel meets the required chemical composition standards. These testing methods are crucial in ensuring the quality, reliability, and compliance of steel round bars with industry standards and customer requirements. It is essential to perform a combination of these tests to ensure the overall quality and performance of the steel round bars in different applications.
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Hot Rolled Steel Round Bars for Making Parts
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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