Steel Round Bar Reliable Manufacturer with High Quality
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 55 m.t.
- Supply Capability:
- 2000000 m.t./month
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Description of steel round bar:
1.Diameter 80 to 800 mm
2.Black or Bright surface
3.Annealed or Quenched and tempered provided
4.Cutting service provide
This steel has good workability,processing deformation is small, anti fatigue performance is quite good, belongs to medium quenching steel,4140 after heat treatment, it has good strength and good comprehensive mechanical properties.The process is good.
Festures of steel round bar:
4340 Forged Round Steel Bar
1.Dia 80-800mm Length:2000-13000mm or as required
2.Technique:Forged
3.Delivery Time:45 days
Specifications of steel round bar:
1. Standards: AISI 4340 8620 8640 4320 , JIS SNCM8 GB:40CrNiMoA
2. Specification: Dia: 80~450mm Length:2000-13000mm or as required
3. Process: EAF+LF+VD ( necessary) UT+ Peeled +Turned + Heat Treatment (optional)
Images of coffee machine:
FAQ:
1. What is your package?
Packing situation: standard seaworthy packing or as customer required.
2. How long is the lead time?
Delivery time: 45 days after order confirmed.
3. What payment term do you accept?
Payment: T/T or L/C at sight.
- Q:What is the tolerance level for steel round bars?
- The tolerance level of steel round bars can vary based on multiple factors, including the bar's grade, diameter, and industry standards. Typically, the tolerance level is specified in terms of diameter or diameter deviation. For instance, in manufacturing, the tolerance level can be defined as a specific range of diameters, such as +/- 0.001 inches or +/- 0.02 millimeters. This means that the actual diameter should fall within this range to meet the tolerance requirements. Alternatively, the tolerance level can be expressed as diameter deviation, which measures the difference between the actual diameter and the specified nominal diameter. This deviation is often presented as a percentage or a specific measurement, like +/- 0.5% or +/- 0.010 inches. It is important to acknowledge that certain industries, like aerospace or automotive, may have stricter tolerance requirements due to the need for precision and quality. In these cases, the tolerance specifications might be narrower to ensure compliance with performance and safety standards. Ultimately, it is crucial to refer to relevant industry standards, specifications, or customer requirements to determine the specific tolerance level for steel round bars in a particular application.
- Q:Can steel round bars be used in the manufacturing of couplings?
- The manufacturing of couplings can indeed make use of steel round bars. Steel round bars find widespread usage in a variety of industrial applications owing to their strength, durability, and versatility. When it comes to couplings, these are mechanical devices employed for connecting two shafts, either for power transmission or to accommodate the misalignment of the shafts. There exist diverse types of couplings, such as rigid couplings, flexible couplings, or universal couplings, each of which can be fabricated by machining, forming, or welding steel round bars. By utilizing steel round bars in the production process, the resulting couplings possess exceptional tensile strength, enabling them to endure heavy loads and torque. Moreover, steel round bars can be subjected to heat treatment, thereby augmenting their mechanical properties and rendering them suitable for an array of operating conditions and environments. Consequently, steel round bars hold considerable popularity as a preferred choice for the manufacturing of couplings.
- Q:Are steel round bars suitable for structural applications?
- Yes, steel round bars are suitable for structural applications. They are commonly used in construction, engineering, and manufacturing industries for various structural purposes due to their high strength, durability, and versatility. Steel round bars provide excellent support and reinforcement in buildings, bridges, machinery, and other structural components.
- Q:What is the difference between a cold-drawn and a centerless ground steel round bar?
- A cold-drawn steel round bar and a centerless ground steel round bar are both types of steel bars that have undergone different manufacturing processes, resulting in different characteristics and properties. Cold-drawn steel round bars are produced by pulling a hot-rolled or annealed steel bar through a die to reduce its diameter and increase its length. This process improves the mechanical properties of the steel, making it stronger, more precise in dimensions, and with a smoother surface finish. Cold-drawn bars have a higher tensile strength, better surface finish, and tighter dimensional tolerances compared to hot-rolled bars. They are commonly used in applications where precision and strength are required, such as in automotive components, machinery parts, and construction materials. On the other hand, centerless ground steel round bars are produced by passing a cylindrical steel bar through a grinding machine without the need for centers or support. The grinding process removes surface imperfections and deviations in diameter, resulting in a precise and smooth finish. Centerless ground bars offer excellent dimensional accuracy, surface finish, and roundness. They are often used in applications where precision and tight tolerances are critical, such as in the manufacturing of bearings, shafts, and hydraulic cylinders. In summary, the main difference between a cold-drawn steel round bar and a centerless ground steel round bar lies in the manufacturing process and the resulting properties. Cold-drawn bars are formed by pulling the steel through a die, resulting in improved mechanical properties, tighter tolerances, and a smoother surface finish. Centerless ground bars are produced by grinding the steel to enhance dimensional accuracy, roundness, and surface finish. Both types of bars have their own advantages and are suited for different applications based on the required precision, strength, and surface finish.
- Q:Can steel round bars be used for making renewable energy systems?
- Indeed, the utilization of steel round bars is feasible for the production of renewable energy systems. Steel, being a versatile material, finds extensive usage across multiple industries, including the renewable energy sector. Its robustness, longevity, and resistance against corrosion render it an ideal choice for fabricating frameworks, support structures, and components of renewable energy systems. For instance, steel round bars serve as an excellent building material for manufacturing wind turbine towers, solar panel frames, and support structures for hydroelectric power systems. Wind turbine towers necessitate a sturdy and stable structure to bear the weight of the turbine and endure the forces exerted by the wind. In this regard, steel round bars provide the requisite strength and stability, thereby ensuring the safety and efficiency of wind turbines. Similarly, solar panel frames require a sturdy construction capable of supporting the panels' weight and withstanding adverse weather conditions. Steel round bars can be employed to construct durable frames that securely hold the solar panels in place. Moreover, in the context of hydroelectric power systems, steel round bars prove invaluable in erecting support structures for various components like turbines, generators, and penstocks. Given the colossal pressure and force exerted by water flow, these structures need to possess the necessary durability and strength, making steel an exceptional choice for this purpose. All in all, steel round bars represent a dependable and frequently employed material in the construction of renewable energy systems. Their strength, durability, and resistance to corrosion render them suitable for diverse applications, thereby contributing to the long-term viability and sustainability of renewable energy sources.
- Q:Are steel round bars suitable for heat exchanger applications?
- Yes, steel round bars are suitable for heat exchanger applications. Steel has excellent thermal conductivity and high strength, making it a reliable choice for transferring heat efficiently in heat exchangers. Additionally, steel round bars can withstand high temperatures and pressures, making them durable and suitable for various industrial applications.
- Q:Can steel round bars be heat treated to enhance their properties?
- Steel round bars can undergo heat treatment to improve their properties. This process involves controlled heating and cooling to modify the microstructure of the steel, ultimately enhancing its mechanical properties like strength, hardness, toughness, and ductility. Various heat treatment methods can be employed based on the desired outcome. One commonly used method is quenching and tempering. This involves heating the steel to high temperatures, forming a uniform austenitic structure, then rapidly cooling it in oil or water to transform the austenite into a stronger structure called martensite. However, martensite can be brittle, so the steel is subsequently tempered by reheating it at lower temperatures to reduce brittleness while maintaining the desired hardness. Another method is annealing, where the steel is heated to a specific temperature and slowly cooled to relieve internal stresses and enhance ductility. This process also refines the grain structure of the steel, improving machinability and formability. Furthermore, there are other heat treatment methods like normalizing, stress relieving, and case hardening, each tailored to enhance specific properties of steel round bars. Overall, heat treatment is a versatile and effective technique for enhancing the properties of steel round bars, enabling them to meet specific requirements in industries such as manufacturing, construction, automotive, and aerospace.
- Q:What are the advantages of using nickel-molybdenum-chromium alloy steel round bars?
- The advantages of using nickel-molybdenum-chromium alloy steel round bars include excellent corrosion resistance, high strength and toughness, good weldability, and the ability to withstand extreme temperatures and pressures. These properties make the alloy steel round bars suitable for various applications in industries such as oil and gas, aerospace, and chemical processing, where durability and reliability are essential.
- Q:What are the advantages of using molybdenum-alloy steel round bars?
- One of the advantages of using molybdenum-alloy steel round bars is their superior strength and durability. The addition of molybdenum enhances the material's tensile strength and resistance to corrosion, making it suitable for various applications in industries such as manufacturing, construction, and engineering. Additionally, molybdenum-alloy steel round bars offer excellent heat resistance, allowing them to withstand high temperatures without losing their structural integrity. This makes them ideal for use in environments where heat and stress are prevalent, ensuring long-lasting performance and reliability.
- Q:What are the different grades of alloy steel round bars?
- Alloy steel round bars encompass a range of grades, each possessing distinct properties and characteristics. Among the various grades are: 1. 4140: Renowned for its exceptional strength, toughness, and resistance to abrasion, this alloy steel round bar finds common use in axles, shafts, and gears. 2. 4340: Distinguished by its superb hardenability and high tensile strength, this grade is frequently employed in applications necessitating exceptional durability and strength, such as aircraft landing gear components and crankshafts. 3. 8620: Recognized for its case hardening properties, this grade is ideal for applications requiring a combination of toughness and wear resistance. It is commonly utilized in gears, pinions, and camshafts. 4. 316: This stainless steel grade offers remarkable corrosion resistance, rendering it suitable for marine environments or situations where exposure to corrosive substances is a concern. 5. 52100: Known for its elevated hardness and wear resistance, this grade is frequently incorporated into the production of bearings and other components subject to high levels of wear. 6. 4340M: Similar to 4340, this grade features the addition of molybdenum to enhance hardenability and strength. It is often utilized in applications necessitating both high strength and toughness, such as aircraft landing gear components and crankshafts. These examples merely scratch the surface of the diverse range of grades available for alloy steel round bars. The selection of a specific grade hinges on the precise requirements of the application, including desired mechanical properties, corrosion resistance, and heat treatment capabilities.
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Steel Round Bar Reliable Manufacturer with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 55 m.t.
- Supply Capability:
- 2000000 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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