Hot rolled steel round bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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OKorder Financial Service
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Product Description:
OKorder is offering hot rolled steel round bar for construction at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Hot rolled steel round bar are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's steel round bar are durable, strong, and resist corrosion.
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
Product Specifications:
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
Usage and Applications of Steel Round Bar Products
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.
Packaging & Delivery of Steel Round Bar Products
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 Steel Round Bar Products
Material prepare (billet) — heat up — rough rolling — precision rolling — cooling — packing — storage and transportation
Characteristics of Steel Round Bar Products
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.
FAQ:
Q1: What makes stainless steel stainless?
A1: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q2: Can stainless steel rust?
A2: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
- Q: What are the different heat treatment methods for steel round bars?
- Steel round bars can undergo various heat treatment methods to enhance their mechanical properties and overall performance. These methods, namely annealing, normalizing, quenching, tempering, and case hardening, are commonly employed. 1. Annealing: By subjecting the steel round bars to a specific temperature and maintaining it for a certain duration, annealing achieves a uniform microstructure. This treatment alleviates internal stresses, improves ductility, and enhances machinability. 2. Normalizing: This technique involves heating the steel round bars slightly above their critical transformation temperature and subsequently cooling them in still air. Normalizing refines the grain structure, enhances mechanical properties, and improves resistance to impact and fatigue. 3. Quenching: The process of quenching entails heating the steel round bars above their critical temperature and rapidly cooling them by immersion in a quenching medium like oil, water, or brine. This rapid cooling hardens the steel, rendering it stronger and more resistant to wear and abrasion. However, quenched steel may exhibit brittleness, necessitating additional heat treatment steps. 4. Tempering: Following the quenching process, tempering is often employed to reduce brittleness and enhance toughness. Tempering involves reheating the quenched steel to a specific temperature and holding it there for a designated time, followed by gradual cooling. This procedure alleviates internal stresses, improves ductility, and enhances overall toughness and machinability. 5. Case Hardening: Case hardening is a surface heat treatment method that increases the hardness of the outer layer of steel round bars while maintaining a relatively softer core. This technique involves heating the steel in a carbon-rich environment, such as a gas or salt bath, and subsequently quenching it to achieve a hardened outer layer. Case hardening improves wear resistance and fatigue strength, making it suitable for applications requiring high surface hardness. It is crucial to note that the selection of the specific heat treatment method for steel round bars depends on the desired mechanical properties and intended application. Manufacturers meticulously choose the appropriate heat treatment method based on factors such as steel composition, desired hardness, and required strength.
- Q: Are steel round bars available in different shapes other than round?
- No, steel round bars are specifically designed and manufactured in a cylindrical shape.
- 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: Are steel round bars suitable for use in the manufacturing of valves?
- Valve manufacturing finds steel round bars to be suitable. Various industries, including valve manufacturing, widely use steel due to its versatility. Steel round bars possess advantages that make them fitting for this purpose. Firstly, steel round bars offer high strength and durability, crucial qualities for valves that experience high pressure and temperature conditions. Steel possesses exceptional mechanical properties, including high tensile strength and impact resistance, enabling it to withstand the demanding requirements of valves. Secondly, steel round bars come in a wide range of sizes and grades, allowing manufacturers to select the most suitable material for their valve designs. Different steel grades offer varying characteristics, such as corrosion resistance, heat resistance, and machinability, enabling the production of valves suitable for different environments and applications. Furthermore, steel round bars can be easily machined and fabricated to meet specific valve requirements. The round shape of the bar facilitates processing, including cutting, drilling, and threading, enabling manufacturers to efficiently produce valves with complex geometries and precise dimensions. In addition to their mechanical properties and versatility, steel round bars are also cost-effective. Steel is a cost-efficient material compared to alternatives like titanium or stainless steel, while still delivering reliable performance and reliability in valves. Overall, steel round bars are a suitable choice for valve manufacturing due to their high strength, durability, versatility, and cost-effectiveness. These qualities make steel round bars the preferred material for valve manufacturers aiming to produce reliable and high-quality valves for various industrial applications.
- Q: What is the difference between a hot rolled and a cold drawn steel round bar?
- The main difference between a hot rolled and a cold drawn steel round bar lies in their production process and resulting characteristics. Hot rolled steel round bars are produced by heating a billet or ingot to a high temperature and then shaping it into the desired form, typically through rolling. This process results in a rough, scaled surface with rounded edges. Hot rolling allows for larger sizes and quantities to be produced quickly and efficiently. The steel is less precise in terms of dimensions and has a lower surface finish quality compared to cold drawn steel. On the other hand, cold drawn steel round bars are produced by pulling a hot rolled bar through a die at room temperature, which results in a smooth, polished surface with tighter dimensional tolerances. This process enhances the mechanical properties of the steel, such as improved strength, hardness, and dimensional accuracy. Cold drawing also provides a better surface finish and closer dimensional control compared to hot rolling. In terms of applications, hot rolled steel round bars are commonly used in construction, manufacturing, and general fabrication due to their lower cost and ease of production. They are suitable for applications where precision and surface finish are not critical factors. Cold drawn steel round bars, on the other hand, are often utilized in more demanding applications that require superior dimensional accuracy, surface finish, and mechanical properties. They are commonly used in automotive, aerospace, and machinery industries, where precision and quality are paramount. In summary, the main differences between hot rolled and cold drawn steel round bars lie in their production process, resulting surface finish, dimensional accuracy, and mechanical properties. The choice between the two depends on the specific requirements and applications of the steel.
- Q: How do steel round bars compare to other materials like aluminum or stainless steel?
- Steel round bars have several advantages over other materials like aluminum or stainless steel. Firstly, steel is known for its exceptional strength and durability, making it a preferred choice for applications that require high tensile strength. Compared to aluminum, steel round bars are generally stronger and have a higher resistance to impact and wear. Additionally, steel is more cost-effective than stainless steel, making it a popular choice for various industrial and construction purposes. However, it's important to note that stainless steel offers superior corrosion resistance, making it more suitable for applications where exposure to moisture or chemicals is a concern. Ultimately, the choice between steel round bars, aluminum, or stainless steel depends on the specific requirements of the project.
- Q: Can steel round bars be used in food processing applications?
- Using steel round bars in food processing applications is not advisable. These bars are usually crafted from carbon steel, which may contain impurities and fail to meet the required food safety standards. When working with food, it is crucial to utilize materials that are explicitly designed and sanctioned for food contact, like stainless steel. Stainless steel boasts superior resistance to corrosion, ease of cleaning, and non-reactivity with food, preserving its original flavor. Hence, to guarantee the safety and integrity of processed food, it is recommended to employ stainless steel round bars or other food-grade materials in food processing applications.
- Q: How do you prevent steel round bars from warping during machining?
- To prevent warping of steel round bars during machining, there are multiple measures that can be implemented: 1. Opt for appropriate material selection: Select steel round bars with minimal residual stress and a consistent internal structure. This will decrease the likelihood of warping during machining. 2. Prioritize stress relief before machining: Prior to machining, subject the steel round bars to stress-relieving heat treatment. This procedure assists in releasing internal stress and stabilizing the material, resulting in reduced warping. 3. Ensure proper machine setup: Guarantee that the machine used for machining the steel round bars is accurately calibrated and aligned. Any misalignment or imbalance can induce stress and lead to warping. Regular maintenance and inspection of machine components are crucial. 4. Employ suitable cooling techniques: While machining, employ appropriate cooling methods to control the temperature. Excessive heat buildup can cause thermal distortion and warping. Implementing lubricants and coolants effectively dissipates heat, maintaining stable machining conditions. 5. Utilize the correct cutting tools: Utilize high-quality cutting tools specifically designed for machining steel. Dull or incorrect tools generate excessive heat and contribute to warping. Regular inspection and replacement of tools are essential for optimal performance. 6. Adjust cutting parameters appropriately: Modify cutting parameters such as cutting speed, feed rate, and depth of cut according to the specific steel grade and machining operation. Inappropriate cutting parameters generate excessive heat and increase the risk of warping. 7. Minimize interrupted cuts: Whenever possible, avoid interrupted cuts as they create stress concentrations and raise the probability of warping. If interrupted cuts are necessary, employ proper tool entry and exit strategies to minimize stress points. 8. Implement post-machining stress relief: After machining, subject the steel round bars to stress-relieving heat treatment once again to alleviate any residual stresses induced during the machining process. This step further reduces the chances of warping. By adhering to these preventive measures, the risk of steel round bars warping during machining can be significantly reduced, ensuring the production of high-quality and precise machined components.
- Q: What are the different grades of tool steel round bars?
- There are several different grades of tool steel round bars, including A2, D2, O1, S7, and H13. Each grade has its own unique properties and is suitable for specific applications in the manufacturing and machining industries.
- Q: Are steel round bars suitable for conveyor belt applications?
- Depending on various factors, conveyor belt applications can benefit from the use of steel round bars. These bars are renowned for their strength, durability, and resistance to wear and tear, making them a viable choice for applications involving heavy loads, high speeds, or abrasive materials. One of the main advantages of utilizing steel round bars in conveyor belt applications lies in their ability to withstand heavy loads. Their strength ensures that the bars can support the weight of conveyed materials without bending or breaking. This is particularly crucial in industries where continuous transportation of large quantities of bulky or heavy materials is required. Moreover, steel round bars exhibit high resistance to wear and tear. The smooth surface of the bars reduces friction, resulting in minimal wear on the conveyor belt and prolonging its lifespan. This is especially important in applications where the conveyor belt constantly moves and comes into contact with abrasive materials, such as in the mining or construction industries. Additionally, steel round bars are capable of withstanding high speeds without compromising their structural integrity. Their high tensile strength enables them to handle the forces exerted on the conveyor belt during acceleration or deceleration. As a result, the conveyor system operates smoothly and efficiently, reducing downtime and enhancing productivity. However, it is crucial to consider the specific requirements of the conveyor belt application when selecting steel round bars. Factors such as the type of conveyed materials, the operating environment, and the specific load and speed requirements should be carefully evaluated. In certain cases, alternative materials or coatings may be necessary to enhance the performance and longevity of the conveyor system. In conclusion, steel round bars can be a suitable choice for conveyor belt applications due to their strength, durability, and resistance to wear and tear. Nonetheless, careful consideration of the specific application requirements is essential to ensure optimal performance and longevity of the conveyor system.
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Hot rolled steel round bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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