Carbon Structural Steel Square Bars Q235CR
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 120000 m.t./month
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Carbon Structural Steel Square Bars Q235CR
Product Specification
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr |
| Q235CR | ≤0.22 | ≤0.35 | ≤1.4 | ≤0.050 | ≤0.045 | ≥0.30 |
2, Mechanical Properties
| Strength of Extension σb | Yield Strength σs | Elogation δ5 |
| 375-500 Mpa | ≥235 Mpa | ≥25 % |
3, Diameter: 9mm, 9.8mm, 10mm, 12mm, 12.5mm, 13mm, 15mm, 15.87mm, 16mm, 19mm,
20mm, 22mm, 25mm, 25.4mm, 28mm, 38mm, 50mm, 51.5mm, 53mm, 65mm, 75mm, 100mm
Application
1, Widely used in construction and engineering structure.
2, Widely used in making reinforcing steel bar or building plant room rack, high voltage transmission tower, bridge, vehicle, boiler, vessel, ship, etc.
3, Widely used in manufacturing mechanical parts which are not required to be with high performance.
4, Q235CR with grade C or D can be used as steel with special use.
5, Can be used in making all kinds of mould hand and other unimportant mould parts.
6, Can be used as punch material.
Product Main Points
1, Heat Treatment: normalizing, annealing, tempering, quenching
2, Surface Treatment: black, grinding, bright, polish
3, Product Process: hot rolled, cold drawn, forged
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About Us
- Q: The difference between round steel and screw steel
- Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Of which: 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts, and more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets
- Q: What is the maximum length of a steel round bar that can be manufactured?
- The maximum length of a steel round bar that can be manufactured is dependent on several factors, including the diameter or thickness of the bar and the limitations of the manufacturing process. In general, steel round bars can be produced in lengths ranging from a few feet to several hundred feet or even longer. However, it is important to note that as the length of the bar increases, it becomes more challenging to maintain its straightness and dimensional accuracy. This is particularly true for thinner or larger diameter bars, as they are more prone to bending or warping during the manufacturing process. Additionally, logistical constraints such as transportation and handling may also impose limitations on the maximum length of a steel round bar that can be manufactured and delivered efficiently. Therefore, the maximum length of a steel round bar that can be manufactured is not a fixed value, but rather depends on various factors related to the specific requirements, capabilities, and limitations of the manufacturer and the application for which the bar is intended.
- Q: What is the difference between a rough turned and a seamless steel round bar?
- A rough turned steel round bar refers to a metal bar that has undergone a preliminary turning process, where excess material is removed to achieve a rougher surface finish. This process helps to create a more uniform diameter and removes any surface imperfections or irregularities. Rough turned bars are commonly used in applications where a smooth surface finish is not a requirement, such as in manufacturing machinery or agricultural equipment. On the other hand, a seamless steel round bar is a solid metal bar that is formed without any welding or seams. It is manufactured through a process called piercing, where a solid billet is heated and then pierced with a mandrel to create a hollow tube. The tube is then elongated and reduced in diameter through a series of rolling and drawing processes until it reaches the desired dimensions. Seamless round bars are known for their superior strength and resistance to corrosion, making them suitable for applications where a high level of performance is required, such as in the oil and gas industry or automotive manufacturing. In summary, the main difference between a rough turned and a seamless steel round bar lies in their manufacturing processes and surface finishes. Rough turned bars are created by removing excess material to achieve a rougher surface finish, while seamless bars are formed without any welding or seams, resulting in a smooth and continuous surface.
- Q: Can steel round bars be used for making conveyor belts?
- No, steel round bars are not typically used for making conveyor belts. Conveyor belts are usually made from materials such as rubber or fabric, which provide flexibility and durability necessary for conveying items efficiently.
- Q: Can steel round bars be used in the production of musical instruments?
- Certainly! Musical instruments can indeed be produced using steel round bars. Steel, being a versatile material, possesses a wide array of desirable attributes including strength, durability, and resonance. Although wood is typically the go-to material for crafting musical instruments, steel can be utilized in specific instances to augment the instrument's sound and performance. For instance, steel round bars can be implemented in the fabrication of various components such as keys or valves for wind instruments like saxophones or trumpets. Moreover, these bars can be employed to construct the internal support systems in instruments like guitars or cellos, thereby providing stability and enriching tonal qualities. Furthermore, steel round bars can be employed in the construction of percussion instruments such as steel drums or xylophones, where their robust and resonant attributes are highly sought after. On the whole, although wood remains the more prevalent choice in the realm of musical instrument production, steel can certainly be employed in specific scenarios to attain desired sound characteristics and structural integrity.
- Q: How are steel round bars used in the manufacturing of conveyor systems?
- Steel round bars are commonly used in the manufacturing of conveyor systems as they provide the necessary strength and durability for supporting heavy loads, guiding conveyor belts, and maintaining stability. These bars are often used as support beams, rollers, and shafts within the conveyor system, ensuring efficient movement of materials along the production line.
- Q: How do steel round bars compare to fiberglass or composite bars?
- Steel round bars and fiberglass or composite bars exhibit distinct differences in their properties and applications. Strength and Durability: Steel round bars possess exceptional strength and durability, boasting a high tensile strength that enables them to withstand heavy loads and stress. Conversely, fiberglass or composite bars possess a favorable strength-to-weight ratio but generally lack the same level of strength as steel bars. They may be more susceptible to bending or breaking under high pressure or impact. Weight: A significant disparity exists in weight between steel bars and fiberglass or composite bars. This contrast can prove advantageous in certain applications where additional weight is necessary for stability or to counteract external forces. Conversely, situations that prioritize weight reduction, such as in the aerospace or automotive industries, favor fiberglass or composite bars due to their lightweight nature. Corrosion Resistance: Steel bars are prone to corrosion, particularly when exposed to moisture or harsh environments. Consequently, they necessitate regular maintenance and protective coatings to prevent rusting. In contrast, fiberglass or composite bars inherently possess corrosion-resistant properties, rendering them suitable for applications prevalent in marine or chemical industries that often involve exposure to corrosive elements. Electrical Conductivity: Steel round bars boast electrical conductivity, which proves advantageous in specific applications requiring electrical grounding or conductivity. Fiberglass or composite bars, by contrast, are non-conductive and preferred in situations necessitating electrical insulation, such as in electrical installations or sensitive electronic systems. Cost: Steel bars generally offer a more cost-effective solution compared to fiberglass or composite bars. The abundance of raw materials for steel production contributes to their affordability in most cases. Conversely, fiberglass or composite bars involve intricate manufacturing processes and the utilization of specialized materials, leading to higher production costs. In conclusion, steel round bars are favored for their strength, durability, and cost-effectiveness, finding widespread use in construction, manufacturing, and infrastructure projects. Conversely, fiberglass or composite bars present advantages in weight reduction, corrosion resistance, and electrical insulation, frequently finding application in industries that prioritize these properties. The selection between the two hinges upon the specific requirements and conditions of the project or industry.
- Q: Can steel round bars be used for making exercise equipment?
- Yes, steel round bars can be used for making exercise equipment. Steel round bars are known for their durability and strength, making them suitable for constructing various types of exercise equipment. They can be used to create weightlifting bars, dumbbells, barbells, and other fitness equipment that require sturdy and reliable materials. Additionally, steel round bars can be easily machined, welded, and shaped into different forms, allowing for customization and versatility in exercise equipment design. The use of steel round bars ensures that the exercise equipment can withstand heavy loads and provide stability during workouts, making them a popular choice among gym equipment manufacturers and fitness enthusiasts.
- Q: Are steel round bars susceptible to cracking?
- Yes, steel round bars can be susceptible to cracking under certain conditions. The specific factors that can contribute to cracking in steel round bars include high stress levels, improper heat treatment, and the presence of impurities or defects in the material. Additionally, sudden changes in temperature or excessive loading can also increase the likelihood of cracking. It is important to note that steel round bars can vary in their susceptibility to cracking depending on the specific grade and composition of the steel. Some types of steel, such as low carbon or mild steel, are generally less prone to cracking compared to higher carbon or alloy steels. To mitigate the risk of cracking, proper handling and storage of steel round bars is crucial. This includes avoiding dropping or mishandling the bars, as well as storing them in a dry and controlled environment to prevent corrosion. Furthermore, proper heat treatment processes, such as annealing or tempering, can help improve the structural integrity of steel round bars and reduce the risk of cracking. Additionally, regular inspections and testing for any potential defects or impurities can help identify and address any issues before they lead to cracking. Overall, while steel round bars can be susceptible to cracking, taking appropriate precautions and utilizing proper manufacturing and handling techniques can minimize the risk and ensure the integrity of the bars.
- Q: What are the different types of steel used in round bars?
- There are several different types of steel that are commonly used in the production of round bars. Some of the most common types include: 1. Carbon Steel: This is the most basic type of steel used in round bars. It contains a small amount of carbon (typically less than 1%) and is known for its strength and durability. Carbon steel is often used in construction and structural applications. 2. Alloy Steel: Alloy steel is made by adding other elements to carbon steel, such as manganese, chromium, or nickel. These additional elements enhance the strength, hardness, and corrosion resistance of the steel. Alloy steel round bars are commonly used in machinery and automotive parts. 3. Stainless Steel: Stainless steel is a type of steel that contains a minimum of 10.5% chromium by mass. This high chromium content gives stainless steel its unique properties, including corrosion resistance and a shiny appearance. Stainless steel round bars are widely used in the food industry, construction, and in applications where high corrosion resistance is required. 4. Tool Steel: Tool steel is a special type of steel that is designed to withstand high temperatures and resist wear and tear. It is commonly used in the manufacturing of tools and dies, as well as in applications where high strength and hardness are necessary. 5. Duplex Stainless Steel: Duplex stainless steel is a type of stainless steel that contains a combination of austenite and ferrite phases in its microstructure. This gives it superior strength and corrosion resistance compared to regular stainless steel. Duplex stainless steel round bars are often used in marine and chemical industries. Overall, the choice of steel for round bars depends on the specific requirements of the application, such as strength, corrosion resistance, and temperature resistance.
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Carbon Structural Steel Square Bars Q235CR
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 120000 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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