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:What are the main applications of special steel in the power generation sector?
- Special steel is widely used in the power generation sector for various applications. Some of the main applications include turbine components, such as blades and rotors, which require high strength and temperature resistance to withstand the harsh operating conditions. Special steel is also used in the construction of boilers and pressure vessels, where its corrosion resistance and high tensile strength are essential. Additionally, special steel is utilized in the manufacturing of power transmission infrastructure, such as transmission lines and transformers, to ensure efficient and reliable electricity transfer. Overall, special steel plays a crucial role in enhancing the performance and longevity of power generation equipment in the industry.
- Q:What are the different non-metallic inclusions in special steel?
- The different non-metallic inclusions commonly found in special steel include oxides, sulfides, nitrides, and carbides. These inclusions can have various shapes and sizes, and their presence can significantly affect the mechanical properties and performance of the steel.
- Q:What are the main characteristics of corrosion-resistant steel?
- Stainless steel, also referred to as corrosion-resistant steel, possesses distinct qualities that render it highly resistant to corrosion. Below are the primary attributes of this type of steel: 1. Exceptional resistance to corrosion: An essential feature of corrosion-resistant steel is its capacity to withstand corrosion. This is achieved through the addition of specific alloying elements, namely chromium, nickel, and molybdenum, which generate a protective layer on the steel's surface. This layer, known as the passive layer, prevents the steel from coming into contact with corrosive substances, including moisture, chemicals, and acids. 2. Superb durability: Corrosion-resistant steel boasts remarkable durability, making it suitable for diverse applications in harsh environments. It can endure extreme temperatures, high humidity levels, and corrosive chemicals without deteriorating or compromising its structural integrity. This durability ensures that structures constructed from corrosion-resistant steel enjoy an extended service life, thereby reducing the need for frequent maintenance and replacements. 3. Aesthetically pleasing: In addition to its functionality, corrosion-resistant steel offers aesthetic appeal. Its smooth and polished surface bestows it with a visually pleasing appearance, rendering it a popular choice for architectural applications, interior design, and decorative elements. The ability to maintain its appearance over time, without rusting or discoloration, enhances its desirability in both industrial and residential settings. 4. High strength: Renowned for its strength and toughness, corrosion-resistant steel retains its mechanical properties even in corrosive environments. Consequently, it can withstand heavy loads, impacts, and other external forces, making it suitable for applications where structural integrity and safety are paramount. Examples include bridges, buildings, marine equipment, and automotive components. 5. Versatility: Corrosion-resistant steel exhibits versatility in terms of its applications. It can be easily fabricated, welded, machined, and formed into various shapes and sizes, thereby allowing for customization and adaptability. This versatility renders it ideal for a wide array of industries, encompassing construction, aerospace, automotive, chemical processing, and marine. 6. Hygienic properties: Another crucial characteristic of corrosion-resistant steel lies in its hygienic properties. Its non-porous surface impedes the growth of bacteria, making it suitable for applications in the food and beverage industry, healthcare facilities, and pharmaceutical manufacturing. Furthermore, its ease of cleaning and maintenance further bolsters its hygiene standards. In summary, corrosion-resistant steel seamlessly combines exceptional resistance to corrosion with durability, strength, versatility, and aesthetic appeal. These characteristics render it a dependable and cost-effective material for various industries, ensuring long-term performance and protection against the detrimental effects of corrosion.
- Q:What are the physical properties of special steel?
- Compared to regular steel, special steel possesses unique physical properties. These properties can vary depending on the specific composition and processing techniques employed. However, special steel typically exhibits high strength, hardness, and durability. Its design often aims to withstand extreme conditions, including high temperatures, pressure, and corrosive environments. Additionally, special steel may display exceptional wear resistance, making it suitable for applications involving heavy machinery or cutting tools. Moreover, it can possess superior electrical and thermal conductivity, along with favorable magnetic properties. In conclusion, the physical properties of special steel render it highly versatile and valuable across various industries, such as automotive, aerospace, construction, and energy.
- Q:How does spring steel maintain its elasticity?
- Spring steel maintains its elasticity due to its unique composition and manufacturing process. It is made from a specific type of high-carbon steel that undergoes a specialized heat treatment called quenching and tempering. This process involves heating the steel to a high temperature and then rapidly cooling it in water or oil, followed by reheating to a specific temperature and allowing it to cool slowly. This heat treatment creates a fine-grained microstructure in the steel, which gives it the ability to withstand repeated bending or twisting without permanently deforming. Additionally, the high carbon content in spring steel enhances its strength and resilience, allowing it to return to its original shape even after being subjected to significant force or pressure.
- Q:How does special steel contribute to the chemical industry?
- Special steel plays a crucial role in the chemical industry by offering exceptional corrosion resistance and high temperature resistance properties. It is used to manufacture various equipment such as storage tanks, pipelines, valves, and reactors, which are essential for handling corrosive chemicals and operating under extreme conditions. Special steel ensures the integrity and safety of these structures, preventing leaks and maintaining product quality, thus enabling efficient and reliable chemical processes.
- Q:What are the main applications of special steel in the chemical industry?
- Special steel is widely used in the chemical industry for various applications. One of the main applications is in the construction of chemical processing equipment, such as reactors, storage tanks, and pipes, due to its excellent corrosion resistance properties. Additionally, special steel is used for manufacturing valves, fittings, and pumps, where high strength and resistance to chemicals are crucial. It is also utilized in the production of heat exchangers and condensers, which require materials that can withstand extreme temperatures and corrosive environments. Overall, special steel plays a vital role in ensuring the safety and efficiency of chemical processes in the industry.
- Q:What are the different methods of improving the machinability of special steel?
- To enhance the machinability of special steel, various techniques can be employed. These techniques encompass: 1. Alloying: The machinability can be improved by incorporating specific alloying elements like sulfur, selenium, lead, or bismuth into the steel composition. These elements serve as lubricants during machining, reducing friction and cutting forces. 2. Heat treatment: Enhancing the machinability of special steel can be achieved through heat treatment processes such as annealing, normalizing, or stress relieving. These processes refine the microstructure, lower hardness, and increase ductility, facilitating easier machining. 3. Modifying the microstructure: The machinability of special steel can be enhanced by modifying its microstructure through grain refinement or controlled precipitation of carbides. Generally, fine-grained steels are easier to machine due to reduced cutting forces. 4. Surface coatings: The application of specialized coatings like titanium nitride (TiN) or diamond-like carbon (DLC) onto the surface of special steel can minimize friction, extend tool life, and enhance chip flow during machining. 5. Optimal tool selection and optimization: The choice of cutting tools with specific geometries, coatings, and cutting parameters can greatly enhance machinability. Selecting the ideal tool ensures efficient chip evacuation, minimizes heat generation, and reduces tool wear. 6. Optimization of machining parameters: Adjusting parameters such as cutting speed, feed rate, and depth of cut significantly impacts machinability. Fine-tuning these parameters helps reduce tool wear, control chip formation, and achieve superior surface finish. 7. Lubrication and cooling: Employing appropriate lubrication and cooling methods, such as cutting fluids or coolants, enhances machinability by reducing friction and heat generation during machining. This prolongs tool life and minimizes workpiece deformation. It is essential to consider that the specific technique or combination of techniques utilized to improve machinability will depend on the type of special steel and the desired machining outcome.
- Q:Can special steel be used for food processing equipment?
- Yes, special steel can be used for food processing equipment. Special steel, often referred to as stainless steel, is commonly used in the food industry due to its corrosion resistance, durability, and hygienic properties. It is non-reactive and does not leach any harmful substances into the food, making it a safe and reliable choice for various food processing applications.
- Q:What are the different methods for case hardening special steel?
- There are several different methods for case hardening special steel, each with its own advantages and applications. 1. Carburizing: This method involves heating the steel in a carbon-rich environment at high temperatures. Carbon atoms diffuse into the surface of the steel, forming a hard and wear-resistant outer layer. Carburizing can be done through various techniques such as gas carburizing, pack carburizing, or liquid carburizing. 2. Nitriding: Nitriding is a process where the steel is heated in a nitrogen-rich environment. Nitrogen atoms diffuse into the surface of the steel, forming a hard and corrosion-resistant layer. This process is mainly used for steels with high alloy content. 3. Induction hardening: Induction hardening utilizes induction heating to selectively heat the surface of the steel. Once heated, a quenching process rapidly cools the surface, resulting in a hard layer. Induction hardening is ideal for parts that require localized hardening, such as gears or shafts. 4. Flame hardening: Flame hardening involves heating the surface of the steel with a high-temperature flame and then rapidly cooling it. This method is commonly used for large parts or components that cannot be easily treated with other methods. 5. Laser hardening: Laser hardening is a precise and localized method that uses a laser beam to heat and harden specific areas of the steel. This technique is highly controlled and allows for precise control over the hardened layer depth and hardness. Each method has its own advantages and limitations, and the choice of case hardening method depends on factors such as the desired hardness, the size and shape of the part, and the specific requirements of the application.
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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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