Carbon Structural Steel Square Bars SAE1018CR
- 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 Square Bars SAE1018CR
Product Specifiction
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr | Ni | Cu |
| SAE1020CR | 0.15-0.20 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.25 |
2, Mechanical Properties
| Strength of Extension σb | Yield Strength σs | Elogation δ5 | Reduction of Area ψ | Hardness |
| ≥410(42) Mpa | ≥245(25) Mpa | ≥25 % | ≥55 % | ≤156HB |
Application
Carbon steel applies to chemical industry, shipping industry,manufacturing industry, construction, decorate industry, electric power, pump shafts, sanitary wares, furniture handles, boiler, high temperature resistant, low temperature resistant, corrosion resistant.
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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- Q: Can steel round bars be threaded or machined?
- Yes, steel round bars can be threaded or machined. Threading refers to the process of creating internal or external threads on the surface of a steel round bar, allowing it to be connected or fastened to other components. Machining, on the other hand, involves using various cutting tools and techniques to remove material from the steel round bar, shaping it into a desired form or size. Both threading and machining can be performed on steel round bars to meet specific requirements and applications, such as creating threaded rods, bolts, or custom-designed components.
- Q: What are the advantages of using low-alloy steel round bars?
- There are several advantages of using low-alloy steel round bars, which make them a popular choice in various industries. Firstly, low-alloy steel round bars offer increased strength and durability compared to regular carbon steel. This makes them suitable for applications that require high strength and resistance to wear and tear. The addition of alloying elements such as manganese, chromium, and nickel enhances the hardness and toughness of the steel, making it highly reliable and long-lasting. Secondly, low-alloy steel round bars exhibit excellent weldability and machinability. The presence of alloying elements allows for better control over the grain structure of the steel, resulting in improved weldability. This means that low-alloy steel round bars can be easily welded and fabricated into complex shapes without compromising their structural integrity. Additionally, their machinability enables efficient processing and customization according to specific requirements. Furthermore, low-alloy steel round bars offer enhanced resistance to corrosion and atmospheric conditions. The alloying elements present in these bars form a protective oxide layer on the surface, preventing the steel from rusting and deteriorating over time. This makes them ideal for outdoor applications exposed to harsh environments, such as construction, marine, and oil and gas industries. Moreover, low-alloy steel round bars are cost-effective compared to higher-alloy or stainless steel alternatives. While providing similar strength and performance, low-alloy steel is generally more affordable, making it a viable option for projects with budget constraints. This cost-effectiveness, combined with their durability and versatility, makes low-alloy steel round bars a preferred choice for a wide range of applications. In conclusion, the advantages of using low-alloy steel round bars include increased strength and durability, excellent weldability and machinability, resistance to corrosion, and cost-effectiveness. These properties make low-alloy steel round bars a reliable and versatile material for various industries, contributing to their widespread use in numerous applications.
- Q: What is the difference between seamless and welded steel round bars?
- Seamless and welded steel round bars differ primarily in the manufacturing process and the resulting characteristics of the final product. Seamless steel round bars are manufactured by piercing a solid billet of steel to create a hollow tube. This tube is then elongated and further processed to achieve the desired dimensions and surface finish. The seamless manufacturing process ensures that there are no welds or joints along the length of the bar. As a result, seamless steel round bars have a uniform composition and structure throughout, providing excellent strength and reliability. They are often preferred when high pressure or high-temperature applications are involved, as they offer better resistance to internal and external pressure. On the other hand, welded steel round bars are made by joining two or more pieces of steel together through welding techniques. This involves heating the ends of the steel pieces and fusing them together using various welding methods, such as arc welding, resistance welding, or fusion welding. The welding process introduces a weld seam along the length of the bar, which can affect its structural integrity and mechanical properties. Welded steel round bars may have slightly lower strength and toughness compared to seamless bars, as the presence of the weld seam can create stress concentrations. However, they are generally more cost-effective and readily available in a wide range of sizes and grades. In summary, the main difference between seamless and welded steel round bars lies in their manufacturing process and resulting characteristics. Seamless bars are produced by piercing a solid billet, offering uniform composition and strength throughout, making them suitable for high-pressure and high-temperature applications. Welded bars, on the other hand, are created by joining multiple pieces of steel through welding, introducing a weld seam that can slightly affect their strength and toughness. Welded bars are often more cost-effective and readily available in various sizes and grades.
- Q: Are steel round bars available in different shapes other than round?
- No, steel round bars are typically only available in round shapes. The term "round bar" refers specifically to a cylindrical shape with a circular cross section. However, there are other types of steel bars available in different shapes, such as square bars, flat bars, and hexagonal bars. These bars have specific applications and properties that make them suitable for different uses. So, while steel round bars are limited to round shapes, there are various other shapes of steel bars available in the market to cater to different requirements.
- Q: Are steel round bars resistant to UV radiation?
- Typically, steel round bars lack resistance against UV radiation, which can induce oxidation and lead to rust formation. Consequently, the structural strength of the steel may weaken, potentially causing deterioration over time. However, safeguarding steel round bars from UV radiation is achievable by applying a protective layer like paint or a specialized coating. This layer acts as a barrier against harmful UV rays. Moreover, storing the bars in shaded areas or utilizing covers can effectively reduce their exposure to UV radiation, thus prolonging their lifespan.
- Q: What is the difference between a turned and a polished steel round bar?
- A turned steel round bar and a polished steel round bar both undergo separate processes that result in different surface finishes and properties. A turned steel round bar is typically created by using a lathe machine to remove material from the surface of a steel bar. This process involves rotating the bar against a cutting tool, which cuts away the outer layer and leaves behind a smooth and cylindrical surface. The turned bar may have visible machining marks due to the cutting process, although it is generally considered to have a more precise and uniform diameter compared to other types of steel bars. Turned bars are often used in applications where dimensional accuracy is crucial, such as in machinery or tooling. On the other hand, a polished steel round bar undergoes a different process that involves grinding or buffing the surface to achieve a smooth and reflective finish. Polishing removes any imperfections or roughness from the surface of the steel bar, resulting in a highly lustrous appearance. Polished bars are often used in decorative applications or where visual aesthetics are important, such as in architectural designs or high-end consumer products. In summary, the main difference between a turned and a polished steel round bar lies in their respective manufacturing processes and resulting surface finishes. A turned bar is machined to achieve precise dimensions, while a polished bar is subjected to a polishing process to obtain a smooth and reflective surface. The choice between the two depends on the specific requirements of the application, with turned bars being preferred for dimensional accuracy and polished bars for aesthetic appeal.
- Q: What are the different types of steel used in manufacturing round bars?
- There are several types of steel used in manufacturing round bars, including carbon steel, alloy steel, stainless steel, and tool steel. Carbon steel is the most common type, known for its high strength and affordability. Alloy steel contains additional elements such as chromium, nickel, and molybdenum to enhance its properties like corrosion resistance and toughness. Stainless steel is highly resistant to corrosion and can withstand high temperatures, making it ideal for applications in the food and chemical industry. Tool steel is specifically designed for tools and dies, offering high hardness, wear resistance, and toughness.
- Q: Can steel round bars be used in the production of gears?
- Indeed, gears can be produced using steel round bars. The utilization of steel round bars as a primary material in the production of gears is quite common due to their remarkable strength, endurance, and capacity to endure substantial loads and extreme temperatures. These round bars can be either machined or forged into the desired gear configuration, guaranteeing precise measurements and precise tooth profiles. Additionally, steel round bars exhibit exceptional resistance to wear and can be subjected to heat treatment to further augment their mechanical qualities. Consequently, they are a suitable option for an array of gear types, encompassing spur gears, helical gears, bevel gears, and worm gears.
- Q: Can steel round bars be anodized?
- No, steel round bars cannot be anodized. Anodizing is a process that is specific to aluminum and its alloys.
- Q: How do steel round bars compare to other types of steel products?
- Steel round bars are a versatile and widely used type of steel product that offer distinct advantages over other types of steel products. Firstly, steel round bars have a circular cross-section, which provides excellent strength and stability. This makes them ideal for applications that require load-bearing capacity, such as construction, automotive, and manufacturing industries. Compared to other types of steel products, such as steel plates or sheets, steel round bars are more easily customizable. They can be easily cut, drilled, and machined to meet specific requirements, making them highly adaptable to various applications. This flexibility allows for the creation of complex shapes and structures with precise dimensions, making steel round bars a preferred choice in engineering and fabrication projects. Furthermore, steel round bars have excellent tensile strength and durability, ensuring long-lasting performance even in demanding environments. They possess high resistance to corrosion, impact, and wear, making them suitable for outdoor or high-stress applications. This durability also contributes to the cost-effectiveness of steel round bars, as they require minimal maintenance and have a lengthy lifespan. Another advantage of steel round bars is their availability in a wide range of grades and alloys. This allows for the selection of steel round bars with specific properties, such as increased hardness, heat resistance, or enhanced machinability, depending on the intended application. The availability of various grades ensures that steel round bars can be tailored to meet specific performance requirements, making them a versatile choice for engineers and designers. In conclusion, steel round bars offer several advantages when compared to other types of steel products. Their circular cross-section provides excellent strength and stability, while their customizability allows for precise shaping and dimensioning. Steel round bars are highly durable, resistant to corrosion and wear, and available in a wide range of grades, making them suitable for a variety of applications across different industries.
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Carbon Structural Steel Square Bars SAE1018CR
- 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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