good quality round steel bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 10000 m.t./month
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Specifications of Round Bar
1. Grade: Q195, Q235, Q345
2. Diameter: 6mm-150mm
3. Length: 6m, 9m, 12m or as customer’s request
4. Tolerance: Within ±5% for weight; ±2mm for diameter
5. Note: The price can be better is the quantity is good
6. Chemical composition
Alloy No | Element (%) | ||||
C | Mn | S | P | Si | |
Q195 | 0.06-0.12 | 0.25 | ≤0.05 | ≤0.045 | ≤0.3 |
Q235 | 0.12—0.20 | 0.3—0.7 | ≤0.045 | ≤0.045 | ≤0.3 |
Q345 | ≤0.2 | 1.00-1.60 | ≤0.045 | ≤0.045 | ≤0.55 |
Usage and Applications of Round Bar
1. Chinese standard steel bar is often used where large amounts of steel need to be formed, for example as structural steel.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Steel round bar is used in construction and a large number of architectural and engineering structures.
Packaging & Delivery of Round Steel Spring Bar:
-Packing Detail: The products can be packed in bundles by steel wires.
-Delivery Detail:
1, Delivery time: 30~45 working days after receive buyer’s T.T. or L/C.
2, Delivery status should be written in the contract. (Heat treatment or no)
Payment:
-Invoicing on theoretical weight or actual weight as customer’s request.
-FOB, CFR or CIF.
-Regular terms of payment:
1, 30% payment in advance, the remaining balance (70% payment) against the copy of B/L. 100% payment before shipment.
2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L. 100% payment before shipment.
3, Negotiable.
Photos of Round Steel Spring Bar:
- Q: Can I use steel bar instead of steel bar?
- But there is a difference between steel reinforcement ratio can good toughness steel reinforced high strength reinforced surface than the thread in the engineering application of the surface force can he assisted according to what you want instead of general effect is no problem except in mechanical parts to replace.
- Q: Are steel round bars suitable for the manufacturing of shafts?
- Yes, steel round bars are highly suitable for the manufacturing of shafts. Steel round bars offer excellent strength, durability, and resilience, making them ideal for applications that require transmitting power, such as in shafts. Their uniform shape and consistent diameter also facilitate ease of machining and assembly, further enhancing their suitability for shaft manufacturing.
- Q: What are the different surface defects that can be found in steel round bars?
- There are several surface defects that can be found in steel round bars. These defects can vary in severity and can have an impact on the overall quality and performance of the steel. Some common surface defects include: 1. Scale: Scale refers to the thin, flaky layer of iron oxide that forms on the surface of steel during the manufacturing process. It can appear as a rough, scaly texture and may cause issues with adhesion or coating application. 2. Pitting: Pitting is the formation of small holes or depressions on the surface of the steel. It can be caused by corrosion, contamination, or uneven heating during the manufacturing process. Pitting can weaken the structural integrity of the steel and increase the likelihood of failure. 3. Scratches: Scratches are superficial marks or cuts on the surface of the steel. They can occur during handling, transportation, or processing. While small scratches may not significantly affect the performance of the steel, deep or extensive scratches can create stress concentrations and reduce the strength of the material. 4. Cracks: Cracks are linear fractures that can occur on the surface of the steel. They can be caused by excessive cooling, improper heat treatment, or mechanical stress. Cracks can propagate and lead to catastrophic failure if not detected and addressed. 5. Decarburization: Decarburization is the loss of carbon content on the surface of the steel due to exposure to high temperatures or improper heat treatment. It can result in a softer and weaker surface layer, reducing the material's strength and hardness. 6. Laminations: Laminations are layers or separations within the steel round bar that can occur due to improper rolling or manufacturing processes. These can weaken the material and reduce its load-bearing capacity. 7. Inclusions: Inclusions are non-metallic impurities or foreign substances that are trapped within the steel during the manufacturing process. They can include oxides, sulfides, or other debris. Inclusions can act as stress concentrators and reduce the material's resistance to cracking and deformation. Detecting and addressing these surface defects is crucial to ensure the quality and reliability of steel round bars. Various inspection techniques such as visual examination, ultrasonic testing, magnetic particle testing, or dye penetrant testing can be employed to identify and assess the severity of these defects.
- Q: What are the chemical composition requirements for steel round bars?
- The chemical composition requirements for steel round bars vary depending on the specific grade or type of steel being used. However, in general, steel round bars are typically made from carbon steel, alloy steel, or stainless steel. Carbon steel round bars typically have a chemical composition consisting of iron and carbon, with trace amounts of other elements such as manganese, phosphorus, sulfur, and silicon. The carbon content in carbon steel round bars can range from 0.08% to 2.1%, depending on the desired strength and hardness. These bars are commonly used in construction, manufacturing, and general-purpose applications. Alloy steel round bars contain additional alloying elements such as chromium, nickel, molybdenum, vanadium, and manganese. These elements are added to enhance the mechanical properties of the steel, such as improved strength, hardness, and resistance to wear and corrosion. The specific chemical composition requirements for alloy steel round bars can vary significantly depending on the desired properties and the specific alloy being used. Stainless steel round bars are composed primarily of iron, chromium, and nickel, along with smaller amounts of other elements such as carbon, manganese, and molybdenum. The high chromium content in stainless steel provides excellent corrosion resistance, while the nickel content enhances its strength and ductility. The chemical composition requirements for stainless steel round bars are typically specified by international standards such as ASTM or EN, which outline the minimum and maximum allowable percentages of each element. In summary, the chemical composition requirements for steel round bars depend on the specific grade or type of steel being used, with carbon steel, alloy steel, and stainless steel being the most common types. The composition of these bars is carefully controlled to achieve the desired mechanical properties and performance characteristics for various applications.
- Q: Can steel round bars be used for making drill bits?
- No, steel round bars cannot be used for making drill bits. Drill bits require specific materials and manufacturing processes to ensure their durability and effectiveness. Drill bits are typically made from high-speed steel (HSS), cobalt steel, or carbide. These materials are chosen for their hardness, heat resistance, and ability to withstand the high forces and temperatures generated during drilling. Steel round bars, on the other hand, are not specifically designed or manufactured to meet the requirements of drill bits. Using steel round bars for making drill bits would result in inferior performance, increased wear, and potential breakage during drilling operations. It is important to use drill bits that are specifically designed and manufactured for the purpose to ensure efficient and safe drilling operations.
- Q: Can steel round bars be used in the manufacturing of conveyor systems?
- Yes, steel round bars can be used in the manufacturing of conveyor systems. Steel is a strong and durable material that can withstand heavy loads and provide stability and support to conveyor systems. Steel round bars can be used as rollers or shafts in conveyor systems to facilitate the movement of materials or products along the conveyor belt. The smooth surface of the round bars allows for easy rotation and reduces friction, ensuring the smooth operation of the conveyor system. Additionally, steel round bars can be easily customized to fit specific conveyor system requirements, making them versatile and suitable for various industrial applications.
- Q: Can steel round bars be used in the production of electrical equipment?
- Steel round bars are capable of being utilized in the production of electrical equipment. Steel possesses a multitude of properties that render it suitable for various applications, including electrical equipment. Components such as shafts, connectors, and structural supports within electrical equipment can be manufactured using steel round bars. The reliability of steel is derived from its strength and durability, enabling it to withstand the mechanical stresses and environmental conditions that electrical equipment may encounter. Moreover, steel offers favorable electrical conductivity and magnetic properties, crucial characteristics for specific electrical components. Nevertheless, it is important to acknowledge that steel round bars may necessitate additional processes like machining, heat treatment, or surface finishing in order to meet specific requirements for the production of electrical equipment.
- Q: What are the advantages of using nickel-molybdenum alloy steel round bars?
- One of the main advantages of using nickel-molybdenum alloy steel round bars is their exceptional strength and durability. These bars have a high tensile strength, making them suitable for applications that require resistance to heavy loads and extreme temperatures. Additionally, nickel-molybdenum alloy steel round bars offer excellent corrosion resistance, making them ideal for use in harsh environments where exposure to moisture, chemicals, or corrosive substances is a concern. Moreover, this alloy steel also exhibits good weldability and machinability, allowing for ease of fabrication and customization. Overall, the use of nickel-molybdenum alloy steel round bars can result in long-lasting, reliable, and cost-effective solutions in various industries such as construction, automotive, and aerospace.
- Q: What are the different types of steel round bar surface treatments used in the automotive industry?
- In the automotive industry, the most common types of steel round bar surface treatments used are galvanization, electroplating, and powder coating. Galvanization involves coating the steel with a layer of zinc to protect it from corrosion. Electroplating is a process where a thin layer of another metal, such as chrome or nickel, is applied to the steel surface for enhanced aesthetics and protection. Powder coating, on the other hand, involves applying a dry powder to the steel surface and then curing it under high heat to create a durable and attractive finish. These surface treatments help improve the durability, appearance, and overall performance of steel round bars used in automotive applications.
- Q: How do steel round bars perform under impact or shock loading?
- Steel round bars are known for their exceptional performance under impact or shock loading. Due to their high strength and toughness, steel round bars can withstand sudden forces and resist deformation or failure. The inherent properties of steel, such as its hardness and ductility, contribute to its ability to absorb energy and distribute it throughout the material, minimizing the impact on the structure. When subjected to impact or shock loading, steel round bars undergo plastic deformation, which allows them to absorb the applied energy without breaking. The ability to absorb energy is crucial in various applications, such as construction, automotive, and machinery industries, where components are often subjected to dynamic loads. Additionally, steel's excellent fatigue resistance further enhances its performance under impact or shock loading. Even when subjected to repeated impacts, steel round bars can withstand the cyclic loading without undergoing significant degradation in their mechanical properties. Moreover, steel round bars can be further enhanced through various heat treatment processes, such as quenching and tempering, to improve their resistance to impact or shock loading. These processes help to refine the microstructure of the steel, resulting in increased strength, toughness, and hardness. In conclusion, steel round bars have a remarkable performance under impact or shock loading. Their high strength, toughness, and ability to absorb energy make them reliable and widely used in applications where sudden forces or dynamic loads are expected.
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good quality round steel bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 10000 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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