5mm to 100mm 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 Steel Round Bar:
1. Standard: GB
2. Grade: Q345
3. Invoicing on theoretical weight or actual weight as customer’s request
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled
Packaging & Delivery of Steel Round Bar:
Packaging Detail: Standard seaworthy packing or as customer required; all goods are packed in bundle with steel strips and shipped by break bulk vessel or container
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF or as customer required
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request.
Documents given: Full set (3/3) of original clean on board bill of lading; Original signed commercial invoice, in 3 originals and 3 copies; Original packing list in 3 originals and 3 copies; Policy of insurance; Certificate of origin and what the target market needs.
Specification of Spring Steel:
-Material: 70Si2CrA
-Production: Hot rolled or cold rolled
-Standard: GB/T·5218-1999
-Type: Spring Steel
-Alloy or no: Alloy
Chemical Composition:
C | Mn | Si | Cr |
0.65~0.75 | 0.40~0.60 | 1.40~1.70 | 0.20~0.40 |
S | P | Ni | |
≤0.030 | ≤0.030 | ≤0.030 |
Mechanical Properties:
-Annealing Condition:
1, Tensile Strength: σb/MPa：≤835
2, Elongation: δ/%：≥8
-Quencher condition:
1, Tensile strength: σb/MPa：785~1175
2, Elongation: -
- Q: What are the advantages of using vanadium-alloy steel round bars?
- There are several advantages of using vanadium-alloy steel round bars. Firstly, vanadium increases the strength and toughness of the steel, making it highly durable and resistant to wear and tear. This makes it ideal for applications that require high strength and reliability, such as construction, automotive, and machinery industries. Secondly, vanadium-alloy steel has excellent heat resistance, allowing it to withstand high temperatures without losing its mechanical properties. This makes it suitable for use in environments with elevated temperatures or in applications involving heat treatment processes. Lastly, vanadium-alloy steel offers improved corrosion resistance, reducing the risk of rust and corrosion, and increasing the lifespan of the round bars. Overall, the use of vanadium-alloy steel round bars provides enhanced performance, durability, and reliability, making them a preferred choice in various industrial applications.
- Q: Can steel round bars be used in the production of shafts?
- Shafts can indeed be produced using steel round bars. The manufacturing process of shafts often involves utilizing steel round bars as a raw material due to their remarkable attributes of strength, durability, and versatility. These bars can be machined or forged into the precise shape and size required for the shaft. With their inherent properties, they are well-suited for a wide range of applications, including the automotive, machinery, and construction industries. Steel round bars boast exceptional mechanical properties such as high tensile strength, impressive impact resistance, and resistance to corrosion. Consequently, they are an ideal choice for shafts that necessitate both a high load-bearing capacity and reliability. Additionally, steel round bars can undergo heat treatment to further enhance their strength and hardness, thereby ensuring optimal performance and longevity of the shafts under diverse operating conditions.
- Q: Could you tell me what is the difference between steel pipe and round steel?
- Widely used in the manufacture of structural and mechanical parts, such as oil drilling pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction. Making ring parts with steel tubes can improve data application rate, simplify manufacturing process, save data and work hours, such as rolling bearings, rings, Jack sleeves, etc., and have been widely used in steel pipe manufacture.
- Q: Are steel round bars suitable for welding applications?
- Yes, steel round bars are suitable for welding applications. Steel round bars are commonly used in welding applications due to their high strength and durability. They can be easily welded to other steel components or structures using various welding processes such as arc welding, MIG welding, or TIG welding. Steel round bars also offer good mechanical properties, including excellent tensile strength, which makes them suitable for welding applications where strength and load-bearing capacity are important factors. Additionally, steel round bars are available in a wide range of sizes and grades, allowing for versatility and compatibility with different welding projects. However, it is important to choose the appropriate type of steel round bar based on the specific welding application and the desired properties of the final product.
- Q: What's the difference between round steel and other steel bars?
- The composition is different, round steel (grade a steel) belongs to ordinary low carbon steel, other steel bars are alloy steel
- Q: What is the difference between a hot-finished and a cold-finished steel round bar?
- The main difference between a hot-finished and a cold-finished steel round bar lies in the manufacturing process and the resulting physical properties of the steel. Hot-finished steel round bars are produced by passing the steel through a high-temperature furnace, followed by a series of rolling processes. This process helps to shape the steel into its desired final dimensions. The high temperatures during the manufacturing process allow for the steel to be more malleable, making it easier to shape and form. As a result, hot-finished steel round bars often have a rougher surface finish and may have slight imperfections such as scaling and decarburization. However, the high-temperature process imparts improved mechanical properties to the steel, such as higher tensile strength and yield strength, making it suitable for applications that require higher strength and durability. On the other hand, cold-finished steel round bars undergo a different manufacturing process. Cold-finished bars are formed by passing the steel through a series of cold rolling processes, which typically occur at room temperature. This process results in a smoother surface finish and tighter dimensional tolerances compared to hot-finished bars. The absence of high temperatures during the manufacturing process prevents scaling and decarburization, resulting in a more uniform and clean appearance. While cold-finished bars may have slightly lower tensile strength and yield strength compared to hot-finished bars, they offer improved dimensional accuracy and a smoother surface, making them suitable for applications that require precision machining or aesthetic appeal. In summary, the main differences between hot-finished and cold-finished steel round bars lie in the manufacturing process, surface finish, dimensional accuracy, and mechanical properties. Hot-finished bars offer higher strength and are suitable for applications that prioritize durability, while cold-finished bars provide better surface finish and dimensional accuracy, making them ideal for precision machining or applications where aesthetics are important.
- Q: Are steel round bars resistant to corrosion?
- Yes, steel round bars can be resistant to corrosion depending on the type of steel and the environment they are exposed to. Stainless steel round bars, for example, contain chromium which forms a thin passive layer on the surface that protects against corrosion. This layer is self-repairing and provides excellent resistance to corrosion in many environments, including moisture, chemicals, and saltwater. However, carbon steel round bars are not inherently corrosion-resistant and may require additional protective coatings or treatments to prevent corrosion. Therefore, it is important to consider the specific type of steel and the intended application when determining the corrosion resistance of steel round bars.
- Q: How do steel round bars compare to glass round bars?
- Steel round bars are significantly stronger and more durable compared to glass round bars. Steel is a metallic material that offers high tensile strength and can withstand heavy loads, making it suitable for structural applications. On the other hand, glass round bars are more fragile and prone to breakage under stress. However, glass round bars have a more aesthetic appeal and are commonly used in decorative applications. The choice between steel and glass round bars depends on the specific requirements of the project, with steel being preferred for strength and glass for its visual qualities.
- Q: What are the advantages of using silicon-alloy steel round bars?
- There are several advantages of using silicon-alloy steel round bars. Firstly, silicon-alloy steel has enhanced strength and durability, making it suitable for demanding applications and heavy-duty industries. Secondly, the addition of silicon improves the steel's resistance to corrosion and oxidation, increasing its lifespan and reducing maintenance costs. Additionally, silicon-alloy steel round bars offer excellent heat resistance, making them ideal for high-temperature environments. Furthermore, these round bars have good machinability and weldability, allowing for easy fabrication and customization. Overall, the advantages of silicon-alloy steel round bars include increased strength, improved corrosion resistance, enhanced heat resistance, and ease of fabrication.
- Q: What is the cost of a steel round bar?
- The cost of a steel round bar can vary depending on factors such as the size, grade, and market conditions.
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5mm to 100mm 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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