Steel Round Bar Reliable Manufacturer from China
- Ref Price:
-
- Loading Port:
- Lianyungang
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 221 m.t.
- Supply Capability:
- 200334443 m.t./month
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Description of steel round bar:
1. Commodity: Round steel bar
3. Technical: Hot rolling
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm
5. Packing: In Bundle or according to your requirements.
Festures of steel round bar:
1.Dia 80-800mm Length:2000-13000mm or as required
2.Technique:Forged
3. Annealing after forging:heat to 840-860°c,keep 2-4H,coolbelow to 500°c,hardness≤285HBS. Isothermal annealing after forging:heat to 540-860°c,keep temperature 2-4H,furnacecold to 740-760°c,keep temperature 4-6H,to 500°c,hardness≤255HBS.
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)
4. Chemical Composition (%):
C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
0.37-0.44 | 0.17-0.37 | 0.40-0.80 | 0.025(max) | 0.025(max) | 0.60-0.90 | 1.25-1.65 | 0.025(max) | 0.15-0.25 |
Images of steel round bar:
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 are the typical hardness values for different grades of steel round bars?
- The typical hardness values for different grades of steel round bars can vary depending on the specific grade and manufacturing process. However, common ranges for hardness values in steel round bars can be between 200 and 400 on the Brinell hardness scale.
- Q: What is the elongation of a steel round bar?
- When a tensile force is applied to a steel round bar, its elongation occurs, which is the extent to which it stretches or deforms. This elongation indicates the bar's capacity to endure tension and is commonly stated as a percentage of its original length. The elongation is influenced by various properties of the steel, including its composition, grain structure, and heat treatment. Additionally, factors such as the applied force, temperature, and loading speed impact the elongation. Steel round bars typically demonstrate considerable elongation before reaching their breaking point, which renders them suitable for structural applications demanding both strength and ductility.
- Q: Can steel round bars be heat treated to enhance their properties?
- Yes, steel round bars can be heat treated to enhance their properties. Heat treatment is a process of heating and cooling the steel in a controlled manner to alter its microstructure, which in turn improves its mechanical properties such as strength, hardness, toughness, and ductility. There are several heat treatment methods that can be applied to steel round bars, depending on the desired outcome. One common method is quenching and tempering. In this process, the steel is heated to a high temperature to form a uniform austenitic structure, and then rapidly cooled by quenching it in a medium such as oil or water. This rapid cooling transforms the austenite into a harder and stronger structure called martensite. However, martensite can be brittle, so the steel is then tempered by reheating it to a lower temperature, which reduces the brittleness and increases toughness while maintaining the desired hardness. Another heat treatment method is annealing, where the steel is heated to a specific temperature and then slowly cooled to relieve internal stresses and improve ductility. This process can also refine the grain structure of the steel, resulting in improved machinability and formability. In addition, there are other heat treatment methods such as normalizing, stress relieving, and case hardening, each designed to enhance specific properties of the steel round bars. Overall, heat treatment is a versatile and effective technique to enhance the properties of steel round bars, allowing them to meet specific requirements for various applications in industries such as manufacturing, construction, automotive, and aerospace.
- Q: What are the different types of steel round bars used in the marine industry?
- In the marine industry, various types of steel round bars are used for different applications. These steel round bars are specifically designed to withstand the harsh marine environment and provide high strength and corrosion resistance. 1. Stainless Steel Round Bars: Stainless steel round bars are widely used in the marine industry due to their excellent corrosion resistance properties. They are resistant to saltwater, acids, and other corrosive elements found in the marine environment. Stainless steel round bars are commonly used for marine fittings, fasteners, and propeller shafts. 2. Carbon Steel Round Bars: Carbon steel round bars are known for their high strength and durability. They are used in various marine applications such as shipbuilding, construction of offshore structures, and fabrication of marine equipment. Carbon steel round bars are available in different grades, with higher carbon content providing increased strength and hardness. 3. Alloy Steel Round Bars: Alloy steel round bars are made by combining different elements such as chromium, nickel, and molybdenum with carbon steel to enhance their mechanical properties. These bars offer excellent strength, toughness, and resistance to corrosion. Alloy steel round bars are commonly used for marine shafts, gears, and structural components. 4. Duplex Stainless Steel Round Bars: Duplex stainless steel round bars are a combination of austenitic and ferritic stainless steels. They offer superior corrosion resistance and high strength, making them ideal for marine applications. Duplex stainless steel round bars are often used in offshore platforms, marine vessels, and underwater equipment. 5. Nickel Alloy Round Bars: Nickel alloy round bars are known for their exceptional resistance to corrosion and high-temperature environments. They are used in critical marine applications where strength, durability, and resistance to corrosive elements are essential. Nickel alloy round bars are commonly used in marine valves, pumps, and heat exchangers. Each type of steel round bar used in the marine industry has its own unique properties and advantages. The selection of the appropriate steel round bar depends on the specific application and requirements of the marine project.
- Q: How are steel round bars used in the construction of stadiums and sports facilities?
- Due to their strength, durability, and versatility, steel round bars find wide application in the construction of stadiums and sports facilities. Typically made from carbon steel, these bars come in various diameters and lengths to cater to the specific requirements of each project. An important function of steel round bars in stadium construction is reinforcing concrete structures. They are commonly embedded within concrete columns, beams, and slabs to enhance their load-bearing capacity and overall structural integrity. The exceptional tensile strength of steel enables it to withstand heavy loads and provide crucial support for large seating areas, roofs, and other architectural elements. Moreover, steel round bars are utilized in the construction of stadium roofs and canopies. These structures demand a material that is both strong and lightweight, capable of spanning long distances without excessive reliance on support columns. Steel bars, when designed and installed properly, offer an optimal solution by providing the necessary strength while minimizing the number of support elements, thus allowing unobstructed views and spacious seating arrangements. In addition, steel round bars are commonly employed in the fabrication of stadium fences, guardrails, and handrails. These components are essential in ensuring the safety and security of spectators, preventing falls or accidents in elevated areas, and guiding the flow of people within the facility. The high tensile strength of steel makes it an ideal material for these applications, providing the necessary resistance against impact. To summarize, steel round bars play a crucial role in the construction of stadiums and sports facilities. Their strength, durability, and versatility make them the preferred choice for reinforcing concrete structures, constructing roofs and canopies, and fabricating safety components. By incorporating steel round bars, stadiums can be built to withstand heavy loads, offer unobstructed views, and ensure the safety of spectators, ultimately enhancing the overall experience for sports enthusiasts.
- Q: What is the maximum vanadium content allowed for steel round bars?
- The maximum vanadium content allowed for steel round bars varies depending on the specific steel grade and industry standards. However, in general, the maximum vanadium content is typically around 0.10-0.15%.
- Q: Are steel round bars suitable for marine environments?
- Steel round bars can be suitable for marine environments, but their suitability depends on the specific type of steel and the conditions of the marine environment. Stainless steel is often the preferred choice for marine applications because it possesses excellent corrosion resistance properties. This is due to the presence of chromium in stainless steel, which forms a protective layer on the steel's surface, preventing corrosion and rusting. However, not all steel round bars are suitable for marine environments. Carbon steel, for instance, is more vulnerable to corrosion in marine settings, especially when exposed to saltwater. To prevent corrosion, carbon steel needs to be carefully protected with coatings or treatments. In addition to the type of steel, the conditions of the marine environment also play a significant role in determining the suitability of steel round bars. Factors such as water salinity, exposure to chemicals, temperature fluctuations, and physical stress can impact steel's corrosion resistance. In highly corrosive marine environments, it is advisable to use specialized marine-grade stainless steel or other corrosion-resistant alloys. Ultimately, it is crucial to choose the appropriate steel grade and consider extra protective measures like coatings or galvanization to enhance the durability and longevity of steel round bars in marine environments.
- Q: What is a steel round bar?
- A steel round bar, a lengthy metal rod with a circular shape, is usually made of strong and durable steel, an alloy composed mainly of iron and carbon. The round bar finds wide usage in industries like construction, manufacturing, and engineering, thanks to its flexibility and dependability. It is frequently employed as a structural element in buildings, as reinforcement or support in concrete structures, or as a part in machinery and equipment. The round shape enables effortless handling, machining, and welding procedures. Steel round bars are available in different diameters and lengths, and they can be further tailored or manufactured to suit particular project needs.
- Q: Can steel round bars be used in the textile industry?
- Limited applications exist where steel round bars can be utilized in the textile industry. Although textiles are mainly composed of natural or synthetic fibers, steel round bars can be employed in the machinery and equipment employed in textile production. These bars commonly serve as the foundation for frames, supports, and other structural components of textile machinery. For instance, steel round bars can be employed to construct the frames of looms, which are essential for fabric weaving. Additionally, they can be integrated into the fabrication of spinning machines, knitting machines, and other textile manufacturing equipment. Furthermore, steel round bars can function as a base or support for textile drying racks, storage systems, or conveyor systems. The strength and durability of steel make it an appropriate material for withstanding the rigorous demands of industrial textile production. However, it is worth noting that steel round bars are not directly incorporated into the fabric or textile products themselves.
- Q: Can steel round bars be used for fastener applications?
- Indeed, fastener applications can make use of steel round bars. In various industries, these round bars are frequently employed as fasteners due to their remarkable durability and high strength. By threading, drilling, or machining them, a variety of fasteners, including bolts, screws, and studs, can be fashioned. The outstanding tensile strength and corrosion resistance of steel round bars render them suitable for demanding tasks that necessitate robust and dependable fastening. Moreover, these round bars are easily obtainable in assorted sizes and grades, enabling customization based on precise fastener needs.
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Steel Round Bar Reliable Manufacturer from China
- Ref Price:
-
- Loading Port:
- Lianyungang
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 221 m.t.
- Supply Capability:
- 200334443 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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