Carbon Structural Steel Round 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 Round 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 - 80mm
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
FAQ
1, Payment Terms:
30% T/T deposit & 70% T/T before delivery.
Irrevocable L/C at sight
2, Trade Terms:
FOB, CIF, CNF
3, Delivery Time:
Normally 30-40 days. According to quantity.
4, Manufacture or Trading Company:
CNBM is a state-owned fortune global 500 trading company. We have intergrated supply system.
There are about 20 overseas locations in different countries.
PRODUCT SHOW
ABOUT US
- Q: How do you prevent steel round bars from rusting during storage?
- To prevent steel round bars from rusting during storage, there are several measures you can take: 1. Keep the round bars in a dry environment: Moisture is one of the main causes of rust. Ensure that the storage area is dry, free from any leaks or humidity. Consider using dehumidifiers or moisture-absorbing products to maintain the dryness. 2. Apply a rust inhibitor: Coating the steel round bars with a rust inhibitor can provide a protective layer against moisture and oxygen, preventing rust formation. Rust inhibitors are available in various forms, such as sprays, oils, or waxes. Apply the inhibitor following the manufacturer's instructions. 3. Store in a climate-controlled area: Extreme temperature fluctuations can cause condensation, leading to rust formation. Storing the round bars in a climate-controlled area with a consistent temperature can minimize the risk of rusting. 4. Properly package the round bars: Use appropriate packaging materials to protect the steel round bars from direct contact with moisture or other contaminants. Consider wrapping them in plastic or using moisture-resistant packaging materials. 5. Regularly inspect and maintain: Periodically inspect the stored round bars for any signs of rust or damage. If any rust spots are detected, promptly clean and reapply a rust inhibitor to prevent further corrosion. Remember, prevention is key when it comes to avoiding rust on steel round bars during storage. By implementing these measures, you can significantly reduce the risk of rust formation and maintain the quality of the round bars.
- Q: What are the different types of steel round bars used in the manufacturing of tools?
- There are several different types of steel round bars that are commonly used in the manufacturing of tools. Each type of steel has its own unique properties and characteristics that make it suitable for different applications. Here are some of the most common types of steel round bars used in tool manufacturing: 1. Carbon Steel Round Bars: These are the most commonly used type of steel round bars in tool manufacturing. They are known for their high strength and durability, making them ideal for heavy-duty applications. Carbon steel round bars can be further classified into low carbon, medium carbon, and high carbon steel, depending on the amount of carbon content present. 2. Alloy Steel Round Bars: Alloy steel round bars are made by adding various alloying elements such as manganese, chromium, nickel, or molybdenum to carbon steel. This results in enhanced strength, hardness, and resistance to wear and tear. Alloy steel round bars are commonly used in the manufacturing of cutting tools, drills, and gears. 3. Stainless Steel Round Bars: Stainless steel round bars are known for their corrosion resistance and high tensile strength. They are commonly used in the manufacturing of tools that require resistance to rust, such as kitchen knives, surgical instruments, and automotive components. 4. Tool Steel Round Bars: Tool steel round bars are specifically designed to be used in the manufacturing of tools, hence the name. They have high hardness, wear resistance, and toughness, making them ideal for applications such as cutting, drilling, and shaping. Tool steel round bars can be further classified into several types based on their specific properties, such as high-speed steel (HSS), cold work steel, hot work steel, and shock-resistant steel. 5. Stainless Tool Steel Round Bars: Stainless tool steel round bars combine the characteristics of stainless steel and tool steel. They offer good resistance to corrosion and wear, making them suitable for applications where both properties are required, such as in the manufacturing of molds and dies. These are just a few examples of the different types of steel round bars used in tool manufacturing. The choice of steel depends on the specific requirements of the tool and the application it will be used for.
- Q: How do steel round bars compare to aluminum or steel tubing?
- Steel round bars, aluminum tubing, and steel tubing all have their own unique properties and applications, so it is important to understand the characteristics of each material before making a comparison. Steel round bars are solid cylindrical bars made of steel. They are known for their high strength and durability, making them suitable for heavy-duty applications. Steel round bars have excellent tensile strength and can withstand high levels of stress and pressure. They are often used in construction, manufacturing, and engineering projects where strength and structural integrity are crucial. Steel round bars are also highly resistant to corrosion, making them suitable for outdoor and marine applications. Aluminum tubing, on the other hand, is made from aluminum, which is a lightweight and corrosion-resistant material. Aluminum tubing is known for its excellent thermal conductivity and electrical conductivity. It is often used in applications where weight reduction is important, such as in the aerospace and automotive industries. Aluminum tubing is also commonly used in the construction of heat exchangers and in electrical wiring systems due to its conductivity properties. Steel tubing, similar to steel round bars, is made of steel but is hollow in shape. Steel tubing is known for its versatility and wide range of applications. It is available in various shapes and sizes, including round, square, and rectangular, allowing for different structural designs. Steel tubing is often used in construction, automotive manufacturing, and industrial applications. It offers high strength and rigidity, making it suitable for applications that require structural support or the ability to withstand heavy loads. In comparison, steel round bars offer superior strength and durability compared to aluminum and steel tubing. They are ideal for heavy-duty applications that require high levels of strength and structural integrity. However, steel round bars can be heavier and more expensive than aluminum tubing, which is often preferred for lightweight applications. Steel tubing, on the other hand, provides versatility in terms of shape and size, allowing for more design options. Ultimately, the choice between steel round bars, aluminum tubing, and steel tubing depends on the specific requirements of the application, including factors such as strength, weight, cost, and corrosion resistance. It is important to carefully evaluate these factors and consult with experts to determine the most suitable material for a particular project.
- Q: What is the difference between cast iron and round steel?
- Cast iron is composed of iron ore by crushing and grinding into powder, into the furnace after high temperature calcination into liquid (commonly known as iron) and then poured into the special mould after cooling into ingot is also called billet or iron, iron is the main component of alloy is composed of iron, carbon and silicon.
- Q: Can steel round bars be used in the manufacturing of pressure vessels?
- Pressure vessels can make use of steel round bars for their construction. These bars are commonly chosen due to their robustness and durability. The circular shape of these bars allows for an even distribution of stress and pressure, which makes them ideal for withstanding the internal pressure generated by the vessel's contents. Moreover, steel round bars can be easily manipulated, welded, and machined to meet the specific requirements of pressure vessel fabrication. However, it is crucial to ensure that the steel used in these bars complies with the necessary specifications and standards for pressure vessel manufacturing, such as those established by international codes like ASME or EN. Furthermore, it is imperative to conduct regular inspections, implement quality control measures, and adhere to relevant safety guidelines throughout the manufacturing procedure to guarantee the integrity and safety of the pressure vessel.
- Q: What are the different types of steel round bar alloys used in aerospace applications?
- The different types of steel round bar alloys used in aerospace applications include stainless steel, nickel-based alloys, and titanium alloys. These alloys are chosen for their high strength-to-weight ratios, corrosion resistance, and ability to withstand extreme temperatures and pressures encountered in aerospace environments.
- Q: Requirements for groove welding of grade 22mm round steel and manual arc welding
- On the lathe, the car C9 chamfer (the car is sharp and difficult to weld, the car's chamfer is too small, the root is not welded).When welding, pull apart the gap of 2mm above the root clearance, the condition allows the edge to rotate while welding, otherwise it can only be welded in all positions.
- Q: Can steel round bars be used for making wheel hubs?
- Yes, steel round bars can be used for making wheel hubs. Steel is a common material choice for wheel hubs due to its high strength and durability, making it suitable for withstanding the forces and pressures experienced by wheel hubs during operation.
- Q: What is the tolerance level for steel round bars?
- The tolerance level for steel round bars can vary depending on the specific industry standards and requirements, but commonly, it falls within a range of +/- a few millimeters or less.
- Q: What are the maximum allowable stresses for steel round bars?
- The maximum allowable stresses for steel round bars depend on various factors such as the grade of steel, the specific application, and the safety standards being followed. However, a commonly used value for allowable stress in steel round bars is typically around 60,000 to 70,000 pounds per square inch (psi). It is important to consult the appropriate design codes, standards, or engineering specifications to determine the specific maximum allowable stresses for a given steel round bar.
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Carbon Structural Steel Round 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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