Carbon Structural Steel Round Bars ST37-2CR
- 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 ST37-2CR
Product Specification
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr |
| ST37-2CR | 0.21-0.25 | ≤0.35 | ≤1.4 | ≤0.045 | ≤0.045 | ≥0.30 |
2, Mechanical Properties
| Strength of Extension σb | Yield Strength σs | Impact AKv |
| 340-470 Mpa | ≥235 Mpa | ≥27J |
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.
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:
EXW, 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.
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About Us
- Q:What is the maximum phosphorus content allowed for steel round bars?
- The maximum phosphorus content allowed for steel round bars typically ranges from 0.04% to 0.10%.
- Q:Are steel round bars suitable for architectural applications?
- Yes, steel round bars are suitable for architectural applications. Steel is a versatile and durable material that is commonly used in construction and architectural projects. Steel round bars offer several benefits for architectural applications. Firstly, steel round bars are known for their strength and load-bearing capacity. They have excellent tensile strength and can withstand heavy loads, making them suitable for applications where structural integrity is crucial. Whether used as support beams, columns, or in other structural elements, steel round bars offer a reliable and long-lasting solution. Additionally, steel round bars are highly resistant to corrosion and fire, which is essential for architectural applications. They can withstand harsh weather conditions, including extreme temperatures, without compromising their structural integrity. This resistance to corrosion and fire makes steel round bars a safe and reliable choice for architectural projects. Furthermore, steel round bars can be easily fabricated and customized to meet specific design requirements. They can be cut, welded, bent, and shaped into various forms, allowing architects and designers to create unique and innovative structures. The versatility of steel round bars makes them suitable for a wide range of architectural applications, including bridges, stadiums, and high-rise buildings. Moreover, steel round bars are cost-effective compared to some other building materials. They have a longer lifespan and require minimal maintenance, reducing the overall lifecycle costs of a project. This cost-effectiveness, combined with their durability and versatility, makes steel round bars a popular choice in architectural applications. In conclusion, steel round bars are indeed suitable for architectural applications. Their strength, resistance to corrosion and fire, ease of fabrication, and cost-effectiveness make them an ideal choice for a wide range of architectural projects. Whether used for structural elements or decorative purposes, steel round bars offer a reliable and aesthetically pleasing solution for architects and designers.
- Q:How are steel round bars manufactured?
- Hot rolling is the method utilized to produce steel round bars. The process begins with heating a large steel billet in a furnace until it becomes soft and malleable. Subsequently, the billet is passed through a series of rollers, which compress and shape it into a round bar. The initial step in hot rolling is the roughing mill, where the billet is subjected to multiple sets of rollers to reduce its thickness and increase its length. This step ensures that the steel maintains a consistent temperature throughout. Following the roughing mill, the bar enters the finishing mill, where it undergoes further size reduction and acquires its final shape. The finishing mill typically comprises several sets of rollers that gradually decrease the bar's diameter while increasing its length. This process is repeated until the desired dimensions are attained. Throughout the rolling process, rigorous quality control measures are implemented to continuously monitor the steel round bar. Any imperfections or defects that arise are promptly identified and rectified to ensure the final product adheres to the required specifications. Once the bar reaches its final dimensions, it is cooled and cut to the desired length. The cooling process can be achieved through the use of air, water, or a combination of both. Subsequently, the bar is inspected for any surface defects and may undergo further processing if needed. In certain cases, additional treatments such as heat treatment or surface finishing may be employed to enhance the properties and appearance of the steel round bar. In conclusion, the manufacturing of steel round bars involves a combination of heating, rolling, cooling, and cutting processes. These procedures are meticulously executed to yield a superior product that fulfills the specific requirements of diverse industries.
- Q:Can steel round bars be used in the manufacturing of fasteners?
- Yes, steel round bars can be used in the manufacturing of fasteners. Steel round bars are often used as raw materials to create fasteners such as screws, bolts, and nuts. The round shape of the bars allows for easy shaping and machining to meet the desired specifications of the fasteners. Additionally, steel is a strong and durable material that provides the necessary strength and resilience required for fasteners to withstand various applications and loads. Therefore, steel round bars are commonly utilized in the manufacturing of fasteners due to their mechanical properties and versatility.
- Q:What is the difference between a solid steel round bar and a hollow steel round bar?
- A solid steel round bar is a cylindrical metal rod that has a uniform diameter throughout its entire length. It is made of solid steel, meaning it does not have any hollow or empty space inside. On the other hand, a hollow steel round bar also has a cylindrical shape but contains a hollow or empty space within its center. This hollow space can vary in size, depending on the specific design and purpose of the hollow round bar. The main difference between the two lies in their structural integrity and weight-bearing capacity. A solid steel round bar offers greater strength and stability compared to a hollow steel round bar. This is because the solid bar is made of a continuous steel material, making it more resistant to bending, twisting, or deforming under pressure. It is commonly used in applications where high strength and durability are required, such as construction, engineering, and manufacturing industries. In contrast, a hollow steel round bar may have reduced strength and load-bearing capacity due to the presence of the hollow space within. However, the hollow design provides certain advantages in terms of weight, cost, and flexibility. The hollow space allows for a lighter overall weight of the bar, making it more suitable for applications where weight is a critical factor, such as aerospace or automotive industries. Additionally, the hollow space can be utilized for various purposes, such as passing through electrical wires or fluids, providing a channel for ventilation, or even reducing material costs by using less steel. Ultimately, the choice between a solid steel round bar and a hollow steel round bar depends on the specific requirements of the application. If strength and stability are paramount, a solid bar would be the preferred choice. Conversely, if weight reduction, cost-efficiency, or additional functionality is desired, a hollow bar may be more suitable.
- Q:What is the resistance to fatigue of a steel round bar?
- The ability of a steel round bar to resist fatigue refers to its capacity to endure repeated cycles of loading and unloading without failing or deforming. Fatigue resistance is a crucial mechanical property for materials utilized in diverse applications, including structural components, machinery, and automotive parts. Several factors influence the fatigue resistance of a steel round bar, including the specific grade of steel, its microstructure, surface condition, and the applied loading conditions. Steel is widely recognized for its exceptional fatigue resistance in comparison to other materials, which explains its extensive utilization across various industries. The high strength, ductility, and presence of various alloying elements in steel contribute to its resistance to fatigue. These characteristics enable steel to endure cyclic loading without significant deformation or weakening. Moreover, the microstructure of the steel, such as grain size and distribution, significantly impacts its fatigue resistance. Engineers typically conduct fatigue tests, such as rotating beam or axial loading tests, to assess the fatigue resistance of a steel round bar. These tests subject the steel bar to controlled cyclic loading and measure the number of cycles it can withstand before failure occurs. The results determine the fatigue strength or fatigue limit of the steel, representing the maximum stress level it can indefinitely endure without failing. It is important to acknowledge that the fatigue resistance of a steel round bar can vary due to factors like surface defects, stress concentration, and environmental conditions. Therefore, proper design considerations, such as surface treatments, stress reduction techniques, and appropriate loading specifications, are crucial to ensure the desired fatigue performance of the steel round bar in specific applications.
- Q:What are the different types of steel round bars used in the automotive drivetrain systems?
- There are several types of steel round bars commonly used in automotive drivetrain systems, including alloy steel, carbon steel, and stainless steel. These bars are chosen based on their specific properties and characteristics, such as strength, durability, and resistance to corrosion. The selection of the type of steel round bar depends on the specific application and requirements of the drivetrain system.
- Q:Are steel round bars suitable for bearing applications?
- In general, steel round bars are suitable for bearing applications. Steel possesses qualities such as strength, durability, and resistance to wear and tear, which make it an ideal material for bearing purposes. Manufacturers often utilize steel round bars in the production of bearings because they have the ability to carry heavy loads and endure rotational forces. Furthermore, steel round bars can undergo heat treatment to increase their hardness and enhance their resistance to friction and corrosion, making them even more suitable for bearing applications. Nevertheless, it is crucial to take into account the specific requirements and conditions of the bearing application to ensure that the chosen steel round bars meet the necessary standards and specifications.
- Q:How are steel round bars used in the construction of high-rise buildings?
- Due to their strength, durability, and versatility, steel round bars are commonly utilized in the construction of high-rise buildings. Carbon steel is typically used to manufacture these bars because it possesses excellent mechanical properties and can endure high loads and pressures. In reinforced concrete structures for high-rise buildings, steel round bars are primarily employed. They serve as reinforcement in concrete beams, columns, and slabs. By embedding the bars in the concrete, the overall structure gains added strength and stiffness. One of the main benefits of utilizing steel round bars is their ability to withstand tension forces. Concrete is strong in compression but weak in tension. Therefore, the steel bars act as tension reinforcement, preventing the concrete from cracking or failing when subjected to tension loads. This significantly improves the building's structural integrity and overall safety. Moreover, steel round bars offer easy bending, shaping, and welding, allowing for flexible design and construction options. They can be customized to specific lengths and diameters to meet the requirements of the building project. This adaptability makes them ideal for constructing various structural elements, like beams and columns, which must be precisely engineered to support the weight and stresses of a high-rise building. Furthermore, steel round bars exhibit excellent resistance to corrosion, which proves crucial when constructing high-rise buildings exposed to various environmental elements. The steel's corrosion-resistant properties ensure the structure's long-term durability and lifespan. In conclusion, steel round bars are essential in the construction of high-rise buildings as they provide strength, durability, and flexibility to reinforced concrete structures. They enhance the overall structural integrity, safety, and longevity of the building, making them a crucial component in modern construction practices.
- Q:Can steel round bars be used in the renewable energy industry?
- Indeed, in the renewable energy industry, steel round bars find utility. Their versatility and durability render them fitting for diverse applications within renewable energy projects. As an illustration, they serve as support structures for solar panels, wind turbine towers, and hydroelectric power plants. The steel round bars furnish the requisite strength and stability to endure the adverse environmental conditions frequently encountered in renewable energy projects. Moreover, steel is a material highly amenable to recycling, thereby aligning with the sustainable principles upheld by the renewable energy industry. Consequently, steel round bars represent a feasible and frequently employed constituent in the construction and advancement of renewable energy infrastructure.
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Carbon Structural Steel Round Bars ST37-2CR
- 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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