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: Can steel round bars be used in the manufacturing of cylinders?
- Yes, steel round bars can be used in the manufacturing of cylinders. Steel round bars are commonly used in various industries, including automotive, aerospace, and manufacturing, due to their high strength and durability. In the case of manufacturing cylinders, steel round bars can be a suitable material choice for constructing the cylindrical body of the cylinder. The steel round bars can be machined, forged, or rolled into the desired shape and then welded or fastened together to form the cylindrical structure. The use of steel round bars ensures a strong and sturdy construction, which is essential for the safe and efficient functioning of cylinders in various applications.
- Q: Can steel round bars be cut to custom lengths?
- Yes, steel round bars can be cut to custom lengths. Steel round bars are versatile and can be easily cut using various methods such as sawing, shearing, or torch cutting. These methods allow for precise customization of the length according to specific requirements or project needs. Additionally, steel round bars are commonly available in standard lengths, but they can be easily cut shorter or extended by welding pieces together. Overall, steel round bars offer flexibility in terms of length customization, making them suitable for a wide range of applications.
- Q: Are steel round bars suitable for bridge construction applications?
- Yes, steel round bars are commonly used in bridge construction applications. Steel round bars offer several advantages for bridge construction, including high strength, durability, and versatility. They can withstand heavy loads and provide the necessary structural support required for bridges. Additionally, steel round bars can be easily fabricated and welded, allowing for efficient construction processes. The use of steel round bars in bridge construction also ensures that the bridges are resistant to corrosion, which is particularly important in environments exposed to moisture or harsh weather conditions. Overall, steel round bars are a suitable and commonly used material in bridge construction applications due to their strength, durability, versatility, and resistance to corrosion.
- Q: What are the advantages of using maraging steel round bars?
- There are several advantages of using maraging steel round bars in various applications. 1. High strength: Maraging steel round bars have an exceptionally high strength-to-weight ratio, making them ideal for applications where strength is crucial. These bars can withstand high stress and load-bearing conditions without deformation or failure, ensuring structural integrity. 2. Superior toughness: Maraging steel round bars exhibit excellent toughness, which means they can absorb a significant amount of energy before fracturing. This property makes them highly resistant to cracking or breaking, even under extreme conditions, enhancing their durability and reliability. 3. Corrosion resistance: Maraging steel round bars are known for their exceptional corrosion resistance. They are less susceptible to rust and oxidation compared to other types of steel, making them suitable for applications in harsh environments or where exposure to moisture or chemicals is a concern. This corrosion resistance helps prolong the lifespan of the bars and reduces maintenance costs. 4. Machinability: Maraging steel round bars are relatively easy to machine, despite their high strength and hardness. They can be readily shaped, drilled, and cut into various forms and sizes, allowing for versatile applications across different industries. This ease of machining saves time and effort during the manufacturing process. 5. Heat treatability: Maraging steel round bars have excellent heat treatability, meaning they can be hardened and tempered to further improve their mechanical properties. This flexibility in heat treatment allows for customization to meet specific project requirements, such as achieving desired hardness levels or enhancing specific characteristics like wear resistance or toughness. 6. Aerospace and defense applications: Maraging steel round bars are widely used in aerospace and defense industries due to their exceptional strength, toughness, and corrosion resistance. They are commonly employed in the manufacturing of critical components like landing gear, missile casings, and aircraft structures, where reliability and performance are of utmost importance. Overall, the advantages of using maraging steel round bars include their high strength, superior toughness, corrosion resistance, machinability, heat treatability, and suitability for aerospace and defense applications. These properties make them a preferred choice for various demanding industries and ensure optimal performance and longevity in critical applications.
- Q: How do you calculate the weight of a steel round bar based on its length, diameter, and density?
- To calculate the weight of a steel round bar, you can use the formula: weight = (π * density * diameter^2 * length) / 4.
- Q: Can steel round bars be used for making sculptures?
- Certainly, sculptures can be created using steel round bars. Steel, being an adaptable and long-lasting material, can be shaped into diverse forms and figures. Round bars, in particular, are ideal for sculpting because they offer a sleek and curved aesthetic. Steel sculptures are recognized for their robustness, durability, and ability to endure various weather conditions, making them suitable for both indoor and outdoor installations. Furthermore, steel can be effortlessly welded, bent, and molded, providing artists with the opportunity to explore their artistic abilities and produce intricate designs. By employing proper techniques and expertise, steel round bars can be transformed into breathtaking sculptures that infuse any space with a contemporary and industrial flair.
- Q: Can steel round bars be used in the production of fasteners?
- Indeed, the utilization of steel round bars is feasible when fabricating fasteners. In the realm of fastener production, steel round bars serve as a prevalent raw material, employed in the manufacturing of an array of fasteners such as bolts, screws, nuts, and studs. The circular nature of steel bars facilitates the machining and forming procedures essential for the creation of threaded or non-threaded fasteners. Steel is a favored choice for fasteners due to its robustness, longevity, and resistance to corrosion. Furthermore, steel round bars can be readily subjected to heat treatment, enhancing their mechanical attributes and rendering them suitable for a vast array of fastening applications across multiple industries.
- Q: What is the difference between a cold-drawn and a polished steel round bar?
- A cold-drawn steel round bar and a polished steel round bar differ in their manufacturing processes and resulting properties. A cold-drawn steel round bar is produced by pulling or drawing a hot-rolled steel bar through a die or series of dies to reduce its diameter and increase its length. This process is done at room temperature, which imparts certain characteristics to the steel. Cold-drawn steel bars have a smooth and shiny surface, with tight dimensional tolerances and improved mechanical properties. The cold drawing process refines the microstructure of the steel, making it stronger, more uniform, and less prone to defects. These bars are commonly used in applications that require high strength, precision, and resistance to fatigue, such as automotive components, machinery, and tooling. On the other hand, a polished steel round bar undergoes a different treatment process. After the steel bar is formed, it goes through polishing, which involves grinding or buffing the surface to achieve a smooth and reflective finish. Polished steel bars have a shiny and mirror-like appearance due to the removal of surface imperfections and contaminants. This process is primarily done for aesthetic purposes and does not significantly alter the mechanical properties of the steel. Polished steel round bars are commonly used in decorative applications, architectural designs, and furniture. In summary, the main difference between a cold-drawn and a polished steel round bar lies in their manufacturing processes and intended applications. Cold-drawn bars undergo a precise cold drawing process to improve their mechanical properties, while polished bars are subjected to surface polishing for an aesthetically pleasing finish.
- Q: How are steel round bars tested for tensile strength?
- Steel round bars are tested for tensile strength using a method called a tensile test. This test measures the resistance of a material to a stretching force, and it is commonly used to determine the mechanical properties of metals. To perform a tensile test on a steel round bar, a sample is taken from the bar in the form of a cylinder or a rectangular shape. The sample is then prepared by removing any surface imperfections or irregularities. Next, the sample is inserted into a testing machine called a tensile testing machine. The machine consists of two grips, one at each end, which securely hold the sample. One grip is fixed while the other is movable. The testing machine applies an increasing force to the sample, causing it to stretch until it eventually breaks. As the force is applied, the machine measures the amount of force required to stretch the sample and records the elongation or deformation of the sample throughout the test. The test results are used to calculate various mechanical properties of the steel round bar, including its ultimate tensile strength. This is the maximum amount of stress the material can withstand before it breaks. Other properties such as yield strength, elastic modulus, and elongation at break can also be determined from the test. Tensile testing is a critical method for determining the quality and suitability of steel round bars for various applications. It helps ensure that the material meets the required specifications and can withstand the expected loads and stresses in its intended use.
- Q: How do you store and handle steel round bars?
- When it comes to storing and handling steel round bars, there are several important factors to consider. Firstly, it is crucial to ensure that the storage area is clean, dry, and free from any moisture or corrosive materials. This will help prevent rust and other forms of damage to the steel bars. The steel round bars should be stored horizontally, either on racks or on a flat surface, to prevent deformation or sagging. It is recommended to stack them in a way that avoids excessive pressure on any individual bar, as this could lead to bending or warping. To handle steel round bars safely, it is best to use appropriate lifting equipment such as cranes, forklifts, or hoists. Manual handling should be avoided whenever possible, as steel bars can be heavy and cumbersome. When using lifting equipment, it is important to ensure that the bars are properly secured and balanced to prevent accidents or injuries. In addition, it is essential to use protective measures such as gloves and safety shoes when handling steel round bars, as they may have sharp edges or rough surfaces. Proper personal protective equipment (PPE) should be worn to minimize the risk of cuts, abrasions, or other injuries. Regular inspections should be conducted to check for any signs of damage, such as dents, cracks, or corrosion. Any damaged bars should be separated from the rest and either repaired or discarded, depending on the severity of the damage. By following these guidelines for storage and handling, you can ensure the longevity and quality of steel round bars, while also maintaining a safe working environment for yourself and others.
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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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