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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About Us
- Q:Are steel round bars prone to deformation?
- Yes, steel round bars can be prone to deformation under certain conditions. Factors such as excessive heat, extreme pressure, or improper handling can cause steel round bars to bend, warp, or twist. However, when manufactured and used properly, steel round bars are highly durable and resistant to deformation.
- Q:What is the difference between hot rolled and cold drawn steel round bars?
- Hot rolled steel round bars are made by heating a billet or ingot of steel to a high temperature and then rolling it into the desired shape. This process results in a rougher surface finish and less precise dimensions compared to cold drawn steel round bars. Cold drawn steel round bars, on the other hand, are made by pulling a hot rolled bar through a die to achieve the desired shape and size. This process produces a smoother surface finish and more accurate dimensions. Overall, the main difference between hot rolled and cold drawn steel round bars lies in the manufacturing process and the resulting surface finish and dimensional accuracy.
- Q:How do you measure the straightness tolerance of a steel round bar?
- To measure the straightness tolerance of a steel round bar, you can use a variety of methods depending on the accuracy and precision required. Here are a few common techniques: 1. Visual Inspection: This is a simple method where you visually inspect the bar for any visible deviations from straightness. You can place the bar on a flat surface and look for any bends or curves along its length. However, this method is subjective and may not provide precise measurements. 2. Straightedge Method: In this method, you place a straightedge, such as a ruler or a precision straightedge, against the bar's surface and check for any gaps or spaces between the straightedge and the bar. This method provides a more accurate measurement but can still be influenced by human error. 3. Dial Indicator Method: This method involves using a dial indicator, which is a precision measuring tool, to measure the straightness tolerance. You secure the dial indicator to a fixed point and then move it along the length of the bar, noting any deviations from a straight line. This method provides more precise measurements and can be used to quantify the straightness tolerance in terms of a specific unit of measurement, such as inches or millimeters. 4. Laser Measurement: Laser systems, such as laser alignment devices, can be used to measure the straightness tolerance of a steel round bar. These systems use lasers to project a straight line onto the surface of the bar and then measure any deviations from this line. Laser measurement provides highly accurate and repeatable results, making it suitable for applications that require tight tolerances. It is important to note that the choice of measurement method depends on the required accuracy, the size of the round bar, and the available resources and equipment. Additionally, it is recommended to consult industry standards and guidelines to ensure compliance with specific tolerances and requirements for your application.
- Q:What is the tolerance for diameter and length of steel round bars?
- The tolerance for diameter and length of steel round bars can vary depending on the specific industry standards and requirements. Generally, the acceptable tolerance for diameter can range from +/- 0.005 to 0.010 inches, while for length it can range from +/- 0.125 to 0.250 inches. However, these tolerances can be more stringent or relaxed depending on the intended application and customer specifications.
- Q:Can steel round bars be used for making suspension components?
- Yes, steel round bars can be used for making suspension components. Steel is a common material used in the manufacturing of suspension components due to its high strength and durability. Steel round bars can be machined or forged into various shapes and sizes to meet the specific requirements of suspension components such as control arms, sway bars, and tie rods. The use of steel round bars ensures the suspension components can withstand the forces and stresses encountered during vehicle operation, providing stability, control, and safety.
- Q:What are the advantages of using heat-treatable steel round bars?
- Using heat-treatable steel round bars offers several advantages: 1. Strength Enhancement: Controlled heating and cooling processes can be applied to heat-treatable steel round bars, which enhance their strength and hardness. This renders them suitable for applications demanding high strength and durability. 2. Enhanced Resistance to Wear: Heat treatment enables the development of a hardened surface layer on the steel round bars, significantly improving their wear and abrasion resistance. As a result, they are ideal for use in industries such as manufacturing, construction, and automotive, where components experience heavy wear and tear. 3. Tailored Customization: Heat-treatable steel round bars possess the advantage of easy customization to meet specific requirements. By adjusting the heat treatment process, the bars' hardness, strength, and other mechanical properties can be tailored to suit different applications, ensuring optimal performance. 4. Convenient Machinability: Heat-treatable steel round bars generally exhibit good machinability, allowing for easy cutting, drilling, or shaping into various forms without compromising their structural integrity. This convenience reduces production time and costs. 5. Versatility: Heat-treatable steel round bars find versatile applications across a wide range of industries, including construction, manufacturing, oil and gas, automotive, and aerospace. They are commonly utilized in the production of shafts, gears, bolts, axles, and other critical components. 6. Long-term Cost-effectiveness: Although heat-treatable steel round bars may initially have a higher cost compared to non-heat-treatable or lower-grade steels, their durability and enhanced properties make them cost-effective in the long run. The improved strength and wear resistance contribute to a longer service life, reducing the need for frequent replacements and maintenance. In conclusion, the utilization of heat-treatable steel round bars offers a multitude of benefits, including increased strength, improved wear resistance, customized properties, easy machinability, versatility, and long-term cost-effectiveness. These advantages position them as the preferred choice for demanding applications requiring high-performance materials.
- Q:What are the different heat treatment processes for steel round bars?
- There are several heat treatment processes for steel round bars, including annealing, normalizing, quenching, tempering, and hardening. Annealing involves heating the steel to a specific temperature and then slowly cooling it to relieve internal stresses and improve its machinability. Normalizing is a similar process, but the cooling is done in still air to achieve a more uniform structure. Quenching involves rapidly cooling the steel from a high temperature to increase its hardness, while tempering is a subsequent process that reduces the brittleness caused by quenching through controlled reheating. Hardening is a process that involves heating the steel to a high temperature and then rapidly cooling it to achieve maximum hardness.
- Q:How are steel round bars used in the manufacturing of machinery and equipment?
- Due to their inherent strength, durability, and versatility, steel round bars find extensive use in the production of machinery and equipment. These bars, typically made from carbon steel or alloy steel, are available in various diameters and lengths. One of the common applications of steel round bars is in fabricating shafts and axles, which are crucial for transmitting rotational motion and torque in machinery. These bars offer the necessary strength and stiffness to withstand the forces and stresses experienced during operation. They are often machined precisely and subsequently heat-treated to enhance their mechanical properties, such as hardness and toughness. Another significant use of steel round bars is in the manufacture of gears and sprockets. These components are essential for transmitting power and motion between different machine parts. Steel round bars are machined to form teeth or cogs that interlock, ensuring smooth and efficient operation. The high strength and wear resistance of steel enable gears and sprockets to endure heavy loads and repetitive motion without distorting or failing. Steel round bars also find application in manufacturing various machine components like bearings, couplings, and fasteners. Bearings, for example, depend on the strength and hardness of steel to support rotating or sliding shafts while minimizing friction and wear. Couplings, on the other hand, utilize steel round bars to connect different machine parts, efficiently transmitting power and motion. Steel round bars also serve as fasteners, providing a secure and dependable connection between different machine elements. Furthermore, steel round bars are frequently used in constructing machine frames and structures. Their high strength-to-weight ratio makes them ideal for providing structural support and stability. By utilizing steel round bars, manufacturers can create robust and reliable machinery and equipment capable of withstanding heavy loads, vibrations, and other challenging operating conditions. In conclusion, steel round bars play a vital role in the manufacturing of machinery and equipment. Their exceptional strength, durability, and versatility make them a favored choice for a wide range of applications. Whether it is for shafts, gears, bearings, or machine frames, steel round bars provide the necessary mechanical properties to ensure the reliable and efficient operation of machinery and equipment.
- Q:Can steel round bars be used for making cooling system components?
- Certainly, cooling system components can be fabricated using steel round bars. Steel, being a versatile and resilient material, possesses the capability to endure elevated temperatures and pressures, rendering it ideal for cooling system applications. Steel round bars can be precisely shaped and dimensioned to meet the varying requirements of distinct cooling system components such as pipes, fittings, valves, and heat exchangers. Furthermore, steel exhibits exceptional thermal conductivity, enabling efficient heat transfer within cooling systems. However, it is vital to meticulously consider the specific demands of the cooling system and seek advice from engineers or professionals to ascertain the appropriate grade of steel and ensure compatibility with other system components.
- Q:What are the advantages of using bearing steel round bars?
- Bearing steel round bars offer numerous benefits: 1. They possess remarkable strength and durability, making them ideal for applications that demand a robust and dependable material capable of withstanding heavy loads and high impact forces. 2. Their exceptional wear resistance allows them to endure constant friction and abrasion without experiencing excessive wear and tear. As a result, they are suitable for applications that involve repetitive rotational motion or sliding. 3. Bearing steel round bars are typically heat-treated to attain optimal hardness levels. This hardness enables them to maintain their shape and structural integrity even under extreme conditions like high temperatures or heavy loads. 4. These round bars exhibit excellent dimensional stability, meaning they retain their shape and size even when subjected to varying temperature and environmental conditions. This quality is essential in applications that require precise dimensions for proper functioning and performance. 5. Bearing steel round bars are often alloyed with elements like chromium and molybdenum to enhance their corrosion resistance. Consequently, they are well-suited for use in corrosive environments, such as the marine or chemical industries. 6. They are relatively easy to machine and process, allowing for efficient production and customization. This ease of shaping, cutting, and drilling makes them a cost-effective choice for various applications. In summary, bearing steel round bars offer high strength, excellent wear resistance, superior hardness, dimensional stability, corrosion resistance, and machinability. These qualities make them the preferred choice in industries such as automotive, aerospace, machinery, and construction, where reliability, durability, and performance are of utmost importance.
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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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