Carbon Structural Steel Square Bars Q235CR
- 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 Q235CR
Product Specification
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr |
| Q235CR | ≤0.22 | ≤0.35 | ≤1.4 | ≤0.050 | ≤0.045 | ≥0.30 |
2, Mechanical Properties
| Strength of Extension σb | Yield Strength σs | Elogation δ5 |
| 375-500 Mpa | ≥235 Mpa | ≥25 % |
3, Diameter: 9mm, 9.8mm, 10mm, 12mm, 12.5mm, 13mm, 15mm, 15.87mm, 16mm, 19mm,
20mm, 22mm, 25mm, 25.4mm, 28mm, 38mm, 50mm, 51.5mm, 53mm, 65mm, 75mm, 100mm
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.
4, Q235CR with grade C or D can be used as steel with special use.
5, Can be used in making all kinds of mould hand and other unimportant mould parts.
6, Can be used as punch material.
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
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About Us
- Q:How are steel round bars used in the manufacturing of material handling equipment?
- Steel round bars are commonly used in the manufacturing of material handling equipment due to their strength and durability. These bars are often used as components in the construction of various equipment, such as cranes, forklifts, conveyors, and hoists. One of the primary applications of steel round bars in material handling equipment is for the construction of load-bearing structures. For example, in cranes and hoists, steel round bars are used to create the mast, boom, and jib, which need to withstand heavy loads and provide stability. The high tensile strength and resistance to bending of steel make it an ideal choice for these critical components. Additionally, steel round bars are used for shafts and axles in material handling equipment. These components play a crucial role in transmitting power and torque, allowing the equipment to operate efficiently. Steel's ability to withstand high stress and torsional forces makes it a suitable material for these applications. Another common use of steel round bars in material handling equipment is for the fabrication of lifting attachments and hooks. These bars are often shaped and welded to create the required lifting mechanism, ensuring that they can safely lift and transport heavy loads. The strength and rigidity of steel make it capable of withstanding the forces exerted during lifting operations. Furthermore, steel round bars are used in the manufacturing of conveyor systems. These bars are utilized as rollers or shafts to support and guide the movement of materials along the conveyor belts. The smooth surface of the steel bars reduces friction, allowing for efficient material handling. In summary, steel round bars play a vital role in the manufacturing of material handling equipment. Their strength, durability, and versatility make them suitable for various applications, including load-bearing structures, shafts, lifting attachments, and conveyor systems.
- Q:What is the Young's modulus of a steel round bar?
- The Young's modulus of a steel round bar is a measure of its stiffness or elasticity. It is a material property that determines how much a material deforms under a given load and is defined as the ratio of stress to strain. For steel, the Young's modulus typically ranges from 190 to 210 gigapascals (GPa). This means that for every unit of stress applied to the steel round bar, the strain experienced by the bar is approximately 190 to 210 times greater. The actual Young's modulus of a specific steel round bar may vary depending on various factors such as the specific grade of steel, its composition, and any heat treatment it has undergone. Therefore, it is important to consult the relevant material specifications or conduct specific testing to determine the exact Young's modulus for a particular steel round bar.
- Q:Can steel round bars be bent or shaped?
- Certainly! Steel round bars have the capability to undergo bending and shaping. Steel, being a highly malleable material, can be formed into desired shapes through different processes. Techniques such as hot bending, cold bending, or induction bending can be employed to bend the steel. By applying force to the steel bar, it can be deformed and molded into the desired shape. Moreover, machining processes like turning, drilling, milling, or grinding can also be utilized to shape steel round bars. These processes enable the creation of various profiles, including cylindrical, square, or hexagonal shapes, among others. In summary, steel round bars provide great flexibility for bending and shaping, allowing for their versatile use in a wide range of applications.
- Q:What is the elasticity of a steel round bar?
- The ability of a steel round bar to return to its original form and size after external forces or deformations is referred to as its elasticity. Steel is renowned for its high elastic modulus, indicating its resistance to deformation and ability to withstand significant stress before permanently bending or breaking. The composition of a steel round bar, specifically its carbon content and the inclusion of other alloying elements, determines its elasticity. Generally, steel with higher carbon content possesses greater elasticity and can be more easily manipulated without enduring permanent deformation. Nonetheless, it is noteworthy that factors like temperature, strain rate, and any defects or imperfections in the material can also influence the elasticity of a steel round bar.
- Q:What are the different types of steel round bar surface finishes used in the construction industry?
- Steel round bars are widely used in the construction industry due to their strength and durability. To meet specific requirements and enhance performance, these bars undergo various surface finishes. Some common surface finishes used in construction include: 1. Hot Rolled Finish: The most commonly used finish involves heating the steel bar above its recrystallization temperature and rolling it through rollers. This process creates a rough and scale-covered surface. 2. Cold Drawn Finish: This process involves drawing the steel bar through dies to reduce its diameter and increase its length. Cold drawing produces a smooth and shiny surface, ideal for applications where aesthetics and precision are important. 3. Peeled and Polished Finish: This finish includes removing the outer layer of the steel bar through peeling and polishing it to achieve a smooth and mirror-like surface. It is often used in applications that require high visual appeal, such as architectural structures or decorative elements. 4. Ground Finish: Grinding is used to achieve a smooth and uniform surface finish on steel round bars. The process removes imperfections and unevenness, resulting in a precise and polished surface. Ground finishes are commonly used in applications that require tight tolerances, such as machinery or automotive components. 5. Coated Finish: Steel round bars can be coated with various materials, such as galvanized, epoxy, or powder coatings, to enhance corrosion resistance and provide additional properties. These coatings not only protect the steel from environmental factors but also improve its aesthetic appeal. Each surface finish offers unique advantages and is chosen based on specific project requirements. Whether it's for aesthetics, corrosion resistance, or tolerances, selecting the right surface finish is crucial to ensure optimal performance of steel round bars in their intended applications.
- Q:Can steel round bars be used in the manufacturing of bearings?
- No, steel round bars are not typically used in the manufacturing of bearings. Bearings require materials that have specific characteristics such as high strength, hardness, and wear resistance. Steel round bars may not possess these properties in the required magnitude. Instead, bearings are typically made from high-quality steel alloys specifically designed for bearing applications, such as bearing steel or stainless steel. These materials undergo specialized heat treatment processes to achieve the desired properties necessary for bearing manufacturing, including high load-carrying capacity, low friction, and long-lasting durability.
- Q:How do you determine the straightness of a steel round bar?
- To determine the straightness of a steel round bar, you can use a straightedge or a precision measuring instrument such as a dial indicator. Place the straightedge along the length of the bar and observe if there are any visible gaps or deviations from a straight line. Alternatively, by using a dial indicator, you can measure the amount of deflection or deviation from a straight path at different points along the bar's length.
- Q:What are the advantages of using bearing steel round bars?
- There are several advantages of using bearing steel round bars: 1. High strength and durability: Bearing steel round bars are known for their exceptional strength and durability. They are specifically designed to withstand heavy loads and high impact forces, making them ideal for applications that require a reliable and robust material. 2. Excellent wear resistance: Bearing steel round bars have excellent wear resistance properties, which means they can endure constant friction and abrasion without experiencing excessive wear and tear. This makes them suitable for applications where the material needs to withstand repetitive rotational motion or sliding. 3. Superior hardness: Bearing steel round bars are typically heat-treated to achieve optimal hardness levels. This hardness allows them to maintain their shape and structural integrity even under extreme conditions, such as high temperatures or heavy loads. 4. Dimensional stability: Bearing steel round bars exhibit excellent dimensional stability, meaning they maintain their shape and size even under varying temperature and environmental conditions. This quality is crucial in applications where precise dimensions are required to ensure proper functioning and performance. 5. Corrosion resistance: Bearing steel round bars are often alloyed with elements like chromium and molybdenum, which enhance their corrosion resistance. This makes them suitable for use in corrosive environments, such as marine or chemical industries. 6. Machinability: Bearing steel round bars are relatively easy to machine and process, which allows for efficient production and customization. This makes them a cost-effective choice for various applications, as they can be easily shaped, cut, or drilled according to specific requirements. Overall, the advantages of using bearing steel round bars include their high strength, excellent wear resistance, superior hardness, dimensional stability, corrosion resistance, and machinability. These qualities make them a preferred choice in industries such as automotive, aerospace, machinery, and construction, where reliability, durability, and performance are crucial.
- Q:What kind of steel is used for anchor bolt material? What's the quality of anchor bolt material?
- The tensile capacity of the anchor bolt is the tensile capacity of the round bar itself. The size is equal to the sectional area multiplied by the allowable stress (Q235B:140MPa, 16Mn, or, Q345:170MPA), that is, the allowable tensile load capacity at design time.
- Q:Can steel round bars be used for making brake components?
- Yes, steel round bars can be used for making brake components. Steel is a commonly used material in brake systems due to its high strength, durability, and heat resistance properties. Steel round bars can be machined and shaped into various brake components such as brake discs, brake rotors, brake calipers, and brake pistons. The use of steel round bars ensures the brake components can withstand the high pressures and temperatures generated during braking, providing reliable and efficient stopping power.
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Carbon Structural Steel Square Bars Q235CR
- 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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