• Hot Rolled Carbon Steel Round Bar AISI1020 System 1
  • Hot Rolled Carbon Steel Round Bar AISI1020 System 2
  • Hot Rolled Carbon Steel Round Bar AISI1020 System 3
Hot Rolled Carbon Steel Round Bar AISI1020

Hot Rolled Carbon Steel Round Bar AISI1020

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
10000 m.t./month

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Item specifice

Type:
Carbon Steel
Shape:
Steel Round Bar

Hot Rolled Carbon Steel Round Bar AISI1020

Product Information:

Specifications

hot rolled carbon steel round bar 

Dia 18-230mm 

Grade 20,45# 

Standard GB,JIS,ASTM,DIN,AISI,BS 

LF & VD forge;ISO&TUV appro

Diameter: 10mm-300mm

Length: 3000mm-12000mm Straightness: 3mm/M max

Product Overviews:

Product NameTypical GradesDiameter(mm)Standard adopted
Carbon Steel20 (1020/S20C/C22)Ø16-Ø300GB/SAE/JIS/DIN
40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing SteelGCr9 (51100/SUJ1)Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel20Cr (5120/SCr420H/20Cr4)Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel20CrNiMoØ16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

Product Show:

Hot Rolled Carbon Steel Round Bar AISI1020

Our Advantages:

· Industry experience over 20 years.

· Shipment of goods -More than 70 countries worldwide.

· The most convenient transport and prompt delivery.

· Competitive price with best service.

· High technical production line with top quality products.

· High reputation based on best quality products.

 

With our experienced, enthusiastic and dynamic staffs, we assure to bring you the products with best quality, reasonable prices and good after-sales services under the motto: Friends First, Business After.

Communication, Experience, Expertise and Best efforts are our Promises to you.


Q:What are the applications of special steel in the defense sector?
Special steel, which is also referred to as high-strength or high-performance steel, has a wide range of uses in the defense sector due to its distinct properties and capabilities. The utilization of special steel in the defense sector can be categorized into different areas: 1. Armor and ballistic protection: In the production of armored vehicles, tanks, and personnel carriers, special steel is extensively employed. Its exceptional strength and hardness make it an optimal material for safeguarding against ballistic threats like bullets, fragments, and explosives. Special steel plates reinforce the structure and provide penetration resistance. 2. Ammunition and weapon components: Various weapon components, such as barrels, bolts, and receivers, are manufactured using special steel. Its remarkable strength, durability, and resistance to wear and corrosion make it suitable for producing firearms and ammunition. Special steel alloys can endure the high temperatures and pressure generated during firing, ensuring dependable performance and durability of weapons. 3. Aircraft and aerospace components: Special steel is employed in the construction of aircraft and aerospace components like landing gears, engine parts, and structural elements. Its high strength-to-weight ratio allows for the production of lightweight yet sturdy components, enhancing the overall performance and safety of military aircraft. Special steel alloys also exhibit excellent fatigue resistance and can withstand high-temperature environments, making them suitable for demanding aerospace applications. 4. Naval applications: Special steel plays a vital role in the naval applications of the defense sector, including the construction of warships, submarines, and naval vessels. Its corrosion resistance, high strength, and toughness make it an ideal material for shipbuilding, ensuring the longevity and structural integrity of naval platforms. Special steel is also used in critical components like propeller shafts, hulls, and others that require exceptional strength and resistance to harsh marine environments. 5. Missiles and rocketry: Special steel is used in the manufacturing of missiles, rockets, and their propulsion systems. Its ability to withstand high temperatures, strength, and resistance to extreme forces make it suitable for producing critical components like rocket nozzles and motor casings. Special steel alloys can endure the intense heat and pressure generated during rocket propulsion, ensuring reliable and efficient performance. In conclusion, the applications of special steel in the defense sector are extensive and diverse. Its unique properties and capabilities contribute significantly to the development of robust, reliable, and high-performance defense systems, ensuring the safety and security of military personnel and assets.
Q:What are the applications of special steel in the nuclear supply chain?
Special steel is widely used in the nuclear supply chain due to its unique properties. It is primarily utilized in various applications such as reactor vessel fabrication, fuel assembly manufacturing, and construction of critical components in nuclear power plants. The exceptional strength, durability, and resistance to corrosion of special steel ensure the safe and reliable operation of nuclear facilities. Additionally, special steel is also employed in the production of storage casks for nuclear waste, as it provides the necessary structural integrity and protection against radiation. Overall, the applications of special steel in the nuclear supply chain are crucial for maintaining the integrity and safety of nuclear power generation.
Q:What are the future trends and innovations expected in special steel production?
The special steel production industry is anticipated to undergo significant changes in the future. Several trends and innovations will shape this industry, and the following key areas are expected to see advancements: 1. Advanced Manufacturing Techniques: Special steel manufacturers will likely adopt advanced manufacturing techniques, such as additive manufacturing (3D printing) and digitalization. These technologies will facilitate the production of complex geometries, minimize waste, and allow for customization of special steel products. 2. Sustainable Production: Due to growing environmental concerns, there will be a focus on sustainable production methods in the special steel industry. This will involve adopting energy-efficient processes, recycling and reusing materials, and reducing the carbon footprint of steel production. 3. High-Strength and Lightweight Alloys: The demand for lightweight materials in sectors like automotive and aerospace will drive special steel production towards developing high-strength and lightweight alloys. These alloys will enhance performance while reducing component weight, leading to improved fuel efficiency and sustainability. 4. Nanotechnology and Microstructural Engineering: Nanotechnology and microstructural engineering will enhance the properties of special steels. By manipulating materials at the nanoscale, manufacturers can improve strength, toughness, corrosion resistance, and other characteristics. 5. Enhanced Surface Treatments: Advancements in surface treatments, such as coatings, will improve the performance and longevity of special steel products. Innovative surface treatments will offer increased resistance to wear, corrosion, and heat, expanding the range of applications for special steels. 6. Digitalization and Data Analytics: Special steel production will undergo a revolution with the integration of digital technologies and data analytics. Smart factories with interconnected systems will enable real-time monitoring, predictive maintenance, and improved quality control, resulting in higher productivity and efficiency. 7. Automation and Robotics: Automation and robotics will continue to play a vital role in special steel production, optimizing productivity, reducing human errors, and improving worker safety. This will enhance overall operational efficiency. 8. Industry 4.0 Integration: The special steel industry will embrace Industry 4.0 principles, including the Internet of Things (IoT) and artificial intelligence (AI). These technologies will enable seamless connectivity, intelligent decision-making, and predictive analysis, leading to improved productivity, cost-effectiveness, and competitiveness. In conclusion, the future of special steel production will be shaped by advancements in manufacturing techniques, sustainable practices, material engineering, digitalization, and automation. These innovations will not only enhance the performance and quality of special steel products but also contribute to a more sustainable and efficient industry.
Q:What are the challenges in casting special steel?
Some of the challenges in casting special steel include achieving the desired composition and metallurgical properties, controlling the cooling rate to prevent the formation of defects such as cracks or porosity, ensuring uniformity and consistency in the casting process, and managing the high temperatures and corrosive environments involved. Special steel often requires precise and complex casting techniques, making it more challenging than casting regular steel. Additionally, special steel alloys may have specific requirements for heat treatment or post-casting processing, which adds further complexity to the casting process.
Q:What are the different joining methods used for special steel?
The different joining methods used for special steel include welding, brazing, soldering, and mechanical fastening.
Q:How does special steel perform in high-stress environments?
Special steel performs exceptionally well in high-stress environments due to its unique properties. Its enhanced strength, durability, and resistance to corrosion make it highly reliable and capable of withstanding extreme conditions. This allows it to maintain its structural integrity and prevent deformation or failure, making it ideal for use in demanding industries like aerospace, oil and gas, and automotive.
Q:What are the limitations of using special steel?
There are several limitations to using special steel. Firstly, it is generally more expensive compared to regular steel, making it less economical for certain applications. Additionally, special steel typically requires specific production techniques and expertise, which may limit its availability and accessibility. Furthermore, special steel might not possess the same level of corrosion resistance as other materials, which can be a disadvantage in certain environments. Finally, the properties and characteristics of special steel may be tailored for specific purposes, which means it may not be suitable for all applications.
Q:How does special steel contribute to the overall strength and durability of structures?
Special steel contributes to the overall strength and durability of structures by providing enhanced mechanical properties such as higher tensile strength, improved corrosion resistance, and increased toughness. Its unique composition and manufacturing processes allow for greater load-bearing capacity, better resistance to wear and tear, and increased longevity. This makes it a crucial material in construction, engineering, and other industries where strength and durability are paramount.
Q:What are the different surface treatments for special steel?
For special steel, there exist various surface treatments that serve distinct purposes and offer unique benefits. Some commonly employed surface treatments include: 1. Galvanization, which entails coating the steel with a layer of zinc, providing exceptional corrosion resistance. Galvanization proves popular for outdoor applications exposed to moisture and harsh environmental conditions. 2. Powder coating, involving the application of a dry powder to the steel surface, which is then heated and cured to form a durable and protective coating. This treatment offers excellent resistance against corrosion, chemicals, and UV rays, making it ideal for automotive parts, appliances, and outdoor furniture. 3. Nitriding, a surface hardening treatment that diffuses nitrogen into the steel surface. Nitriding significantly enhances surface hardness, wear resistance, and fatigue strength. It finds common use in high-performance components like gears, crankshafts, and injection molding screws. 4. Electroplating, where a layer of metal such as chromium, nickel, or gold is deposited onto the steel surface through an electrochemical process. This treatment improves appearance, corrosion resistance, and wear resistance. Electroplating is often employed for decorative purposes or to enhance component performance in various industries. 5. Passivation, a chemical treatment that eliminates iron contaminants from the steel surface, creating a passive oxide layer. This layer acts as a barrier against corrosion, enhancing resistance to rust and other forms of degradation. Passivation is commonly used for stainless steel components in industries like food processing, pharmaceuticals, and medical devices. 6. Carbonitriding, a surface treatment that introduces carbon and nitrogen into the steel surface at high temperatures. This process forms a hardened case, improving wear resistance and fatigue strength. Carbonitriding finds frequent application in high-stress components such as gears, crankshafts, and camshafts. These examples represent just a fraction of the available surface treatments for special steel. The choice of treatment depends on factors like desired properties, application requirements, and budget constraints. Consulting experts or manufacturers is crucial for determining the most suitable surface treatment for specific steel applications.
Q:How does special steel contribute to the construction sector?
The construction sector heavily relies on special steel for its ability to enhance the quality, durability, and safety of structures. This type of steel is known for its exceptional strength and toughness, making it an ideal choice for high-rise buildings, bridges, and other infrastructure projects. Its high tensile strength allows for the construction of lighter and more slender structures, reducing material costs and allowing architects to design innovative and visually pleasing buildings. Additionally, special steel boasts high resistance to corrosion, which is particularly crucial in construction projects located in harsh environments such as coastal areas or industrial zones. This resistance ensures that structures built with special steel have a longer lifespan and require less maintenance, resulting in significant cost savings over time. Furthermore, its ability to withstand fire and extreme temperatures makes it indispensable for fire-resistant structures and critical components, guaranteeing the safety of occupants. Furthermore, special steel offers excellent ductility and weldability, allowing it to seamlessly integrate with other construction materials and facilitate efficient assembly processes. Its versatility makes it suitable for various structural elements like beams, columns, and reinforcement bars, providing stability and structural integrity to buildings, as well as improving their seismic performance. Moreover, the use of special steel in construction aligns with sustainability goals. It is a recyclable material that can be reused without compromising its properties, reducing the environmental impact of the construction sector. Additionally, its lighter weight compared to traditional materials minimizes the carbon footprint associated with transportation and installation. In conclusion, special steel significantly contributes to the construction sector by providing strength, durability, fire resistance, corrosion resistance, and versatility. Its use enables the construction of safer, more cost-effective, and environmentally-friendly structures, enhancing the overall quality and sustainability of the built environment.

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