High Quality Round Bar Bearing Steel Gcr15/SAE 52100
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 10000 m.t./month
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Specifications:
1) Grade: Bearing steel SAE 52100 / GCr15 round bars
2) Diameter: 20-500mm
3) Hot rolled/forged, annealed
Application:
Bearing steels are the most important special steels for the manufacturing of rolling elements and bearing rings.
The high-carbon chrome bearing steels are widely used in transmission shaft rollers and sleeves for auto,construction machinery, inter combustion engine manufacturing,electrical locomotive,machine tool,tractor,steel rolling equipment,drilling machinery and others.
Carburized bearing steels are mainly used in railway locomotives and wind power field.The self-developed high-grade bearing steels are acknowledged by lots of famous bearing companies in the world.
Packaging & Delivery
Mark: Heat No. will be cold stamped and Steel grade, diameter (mm), length (mm), and the manufacturer LOGO and weight (kg) is painted.
Standard seaworthy packing or as customer required
Delivery time: Within 30 days after order is confirmed.
- Q: How is high-temperature tool steel used in the production of hot work tools?
- High-temperature tool steel is used in the production of hot work tools due to its exceptional heat resistance and strength properties. It can withstand the high temperatures generated during hot work processes such as forging, extrusion, and die casting, without losing its hardness or experiencing deformation. This steel is used to manufacture tooling components like dies, punches, and inserts, ensuring their longevity and performance in extreme heat conditions.
- Q: How does special steel contribute to the manufacturing of medical implants?
- Special steel plays a crucial role in the manufacturing of medical implants due to its unique properties and characteristics. Medical implants require materials that are biocompatible, corrosion-resistant, and durable. Special steels, such as stainless steel, titanium alloys, and cobalt-chromium alloys, possess these desired qualities, making them ideal for medical implant production. Firstly, stainless steel is widely used in the manufacturing of medical implants due to its excellent corrosion resistance and high strength. It is often employed in applications like surgical instruments, orthopedic implants, and dental devices. Stainless steel implants can withstand the harsh physiological environment within the body, ensuring long-term performance and reducing the risk of complications. Titanium alloys are another type of special steel extensively used in medical implant manufacturing. These alloys offer high strength-to-weight ratio, exceptional biocompatibility, and resistance to corrosion. Titanium implants are commonly used in orthopedic surgeries, such as joint replacements, as well as dental implants. The biocompatible nature of titanium allows for better integration with the surrounding bone, promoting faster healing and reducing the risk of rejection. Cobalt-chromium alloys are yet another type of special steel utilized in the production of medical implants. These alloys possess excellent mechanical strength, wear resistance, and biocompatibility. Cobalt-chromium implants are frequently employed in orthopedic surgeries and cardiovascular interventions, such as stents. Their high strength ensures stability and longevity, while their biocompatibility minimizes adverse reactions and promotes patient recovery. Overall, special steel provides the necessary qualities required for manufacturing medical implants. Whether it is stainless steel, titanium alloys, or cobalt-chromium alloys, these materials contribute to the development of biocompatible, corrosion-resistant, and durable implants that improve patients' quality of life and ensure successful medical procedures.
- Q: What is the role of special steel in sustainable manufacturing?
- Special steel plays a crucial role in sustainable manufacturing by offering numerous advantages that contribute to environmentally friendly production processes. Firstly, special steel is highly durable and has a long lifespan, which reduces the need for frequent replacement or repairs. This durability minimizes waste and extends the life cycle of products, reducing the overall environmental impact. Furthermore, special steel has excellent recyclability properties. It can be recycled multiple times without losing its quality or performance, making it a sustainable choice for manufacturers. By incorporating recycled special steel into the production process, manufacturers can reduce their reliance on virgin materials and decrease energy consumption and greenhouse gas emissions associated with the extraction and production of new steel. Moreover, special steel offers high strength and lightweight characteristics, enabling manufacturers to design products that are more energy-efficient. For example, in the automotive industry, using special steel in the manufacturing of vehicles reduces their weight, leading to improved fuel efficiency and lower emissions. This contributes to the reduction of carbon footprint and supports sustainable transportation. Special steel also plays a significant role in the production of renewable energy technologies. Wind turbines, solar panels, and hydropower systems require sturdy and resilient materials to withstand harsh conditions. Special steel provides the necessary strength, corrosion resistance, and durability required for these renewable energy infrastructure projects. By enabling the development of such technologies, special steel contributes to the growth of the renewable energy sector, which is essential for transitioning to a more sustainable energy mix. In conclusion, special steel plays a vital role in sustainable manufacturing by offering durability, recyclability, lightweight properties, and strength. By using special steel, manufacturers can reduce waste, energy consumption, and emissions, while also enabling the development of energy-efficient products and renewable energy technologies. Incorporating special steel into manufacturing processes is an essential step towards achieving a more sustainable and environmentally friendly future.
- Q: What are the standards and certifications for special steel?
- Some of the standards and certifications for special steel include ISO 9001 for quality management systems, ISO 14001 for environmental management systems, and ISO 45001 for occupational health and safety management systems. Additionally, there are various industry-specific standards such as ASTM International, EN standards, and JIS standards that provide specifications and testing requirements for different types of special steel. These standards and certifications ensure that the special steel meets specific quality, safety, and environmental standards, and helps to establish trust and credibility in the industry.
- Q: What is the impact of high temperature on the mechanical properties of special steel?
- High temperatures can significantly affect the mechanical properties of special steel. As the temperature increases, the steel's strength and hardness decrease, leading to reduced load-carrying capacity and increased susceptibility to deformation and failure. High temperature can also cause a decrease in toughness and ductility, making the steel more brittle and prone to fracture. Additionally, the expansion and contraction of the steel due to thermal cycling can induce stress and lead to thermal fatigue, further compromising its mechanical integrity. Therefore, it is crucial to consider the impact of high temperature on the mechanical properties of special steel when designing and operating systems that involve elevated temperatures.
- Q: Can special steel be used in the manufacturing industry?
- Yes, special steel can be used in the manufacturing industry. Special steel refers to specific types of steel that have been tailored to possess certain properties, such as increased strength, improved corrosion resistance, or superior heat resistance. These specialized properties make special steel ideal for various applications in the manufacturing industry, including the production of heavy machinery, automotive parts, tools, and construction materials.
- Q: How does special steel resist thermal fatigue?
- Special steel is able to resist thermal fatigue due to its unique composition and properties. Thermal fatigue occurs when a material is subjected to repeated heating and cooling cycles, leading to the formation of cracks and eventual failure of the material. Special steel is specifically designed to withstand extreme temperature changes. It has a high melting point and excellent thermal conductivity, which allows it to efficiently dissipate heat and minimize thermal stress. Additionally, the steel is often alloyed with elements such as chromium, nickel, and molybdenum, which enhance its resistance to thermal fatigue. The alloying elements in special steel form a protective layer that acts as a barrier against oxidation and corrosion. This protective layer prevents the formation of cracks and improves the steel's ability to withstand thermal cycling. Furthermore, the alloying elements improve the steel's structural integrity by promoting the formation of fine and evenly dispersed microstructures. This enhances the steel's toughness and resistance to cracking. Moreover, special steel undergoes various heat treatment processes to further enhance its resistance to thermal fatigue. These processes involve controlled heating and cooling cycles, which refine the microstructure of the steel and make it more resistant to deformation and cracking. The heat treatment also helps in relieving any residual stresses that may have been induced during the manufacturing process. In summary, special steel resists thermal fatigue through its unique composition, alloying elements, and heat treatment processes. Its high melting point, excellent thermal conductivity, and protective layer against oxidation and corrosion make it highly resistant to thermal cycling. The refined microstructure and relieved residual stresses further enhance its ability to withstand repeated heating and cooling cycles without failure.
- Q: What are the different chemical processing grades of special steel?
- Various chemical processing grades of special steel exist, each possessing its own unique properties and applications. Some commonly encountered grades include: 1. Martensitic stainless steel: Esteemed for its exceptional strength and hardness, this grade finds utility in contexts that prioritize corrosion and wear resistance, such as cutlery, surgical instruments, and industrial equipment. 2. Austenitic stainless steel: Distinguished by its remarkable corrosion resistance and formability, this grade is frequently employed in sectors where hygiene and cleanliness are paramount, like the food and beverage industry, pharmaceuticals, and chemical processing. 3. Duplex stainless steel: This grade amalgamates the desirable qualities of both austenitic and ferritic stainless steels, offering elevated strength and outstanding corrosion resistance. It is aptly suited for applications in harsh environments, such as offshore oil and gas platforms, chemical plants, and desalination plants. 4. Precipitation-hardening stainless steel: By undergoing heat treatment, this grade can attain heightened strength and hardness. It is commonly employed in the aerospace, defense, and nuclear industries, where strength, toughness, and corrosion resistance are of utmost importance. 5. Tool steel: Specifically formulated for the production of tools, dies, and molds, tool steel exhibits exceptional hardness, wear resistance, and toughness. It is widely utilized in industries such as automotive, aerospace, and manufacturing. These examples merely scratch the surface of the diverse array of chemical processing grades of special steel. Each grade possesses its own distinct composition and processing techniques to achieve the desired properties for its designated application.
- Q: What are the challenges in heat treatment of special steel?
- Some challenges in the heat treatment of special steel include achieving the desired hardness and strength without compromising other properties, such as toughness and corrosion resistance. Special steels often have complex compositions, which can make it difficult to accurately control the heat treatment process. Additionally, heat treatment of special steel can be time-consuming and costly due to the need for precise temperature and time control, as well as the potential for distortion or cracking during the heat treatment process.
- Q: How does special steel compare to other high-performance materials?
- Special steel stands out from other high-performance materials due to its exceptional strength, durability, and versatility. It exhibits higher tensile strength compared to materials like aluminum, titanium, and composites, making it suitable for robust and load-bearing applications. Moreover, special steel excels in resisting corrosion, heat, and wear, making it a perfect choice for harsh environments and high-temperature uses. One advantage of special steel is its cost-effectiveness, making it more affordable than materials like titanium. This affordability makes it the preferred choice in various industries. Additionally, the manufacturing process allows for customization, enabling the production of different grades and compositions to meet specific requirements. Special steel's excellent machinability and weldability make fabrication and assembly easy. Its versatility allows it to be utilized in various industries, including automotive, aerospace, construction, and energy. Whether it's structural components or precision tools, special steel provides a reliable and efficient solution. However, it's important to consider that the choice of material depends on the specific application and its requirements. While special steel has numerous advantages, there may be instances where other high-performance materials are more suitable, such as lightweight components or extreme temperature conditions. Therefore, conducting a comprehensive evaluation of the application's needs and characteristics is crucial in determining the most appropriate material.
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High Quality Round Bar Bearing Steel Gcr15/SAE 52100
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 10000 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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