SAE 52100 Bearing Steel Round Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Type:
Bearing Steel
Shape:
Steel Round Bar
SAE 52100 Bearing Steel Round Bars
Product description:
Material | suj2 | ||
Chemical Composition | Mechanical Properties(In Quenched & Tempered State) | ||
C | 0.95-1.05 | Tensile strength(MPA) | ---- |
Si | 0.15-0.35 | Yield strength (MPA) | -- |
Mn | 0.25-0.45 | Elongation(δ5/%) | -- |
Cr | 1.40-1.65 | Reduction in Area (ψ/%) | -- |
Mo | ≤0.10 | Impact (J) | -- |
P | ≤0.025 |
Hardness | HB170-207 HB207-229 HB270-390 HB229-285 HRC62-66 HRC61-66 HRC≈67 |
S | ≤0.025 | ||
Ni | ≤0.30 | ||
Cu | ≤0.25 | ||
Ni+Cu | ≤0.50 | ||
Charactteristics:
Flat Steel GCr15 Flats are of
Good hardening ability. Good wear resistance. Shadow depth of hardness
Harden from a temperature of 790-820oC, 820-860oC followed by water or oil quenching. Hardness after quenching is 63-67, 63-66 HRC.
Tempering temperature: 150-300oC. Hardness after tempering is 56-65 HRC.
Application:
Commom steel used to produce balls and rings of bearing. The product has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, well-distributed carbide, good surface quality. It also has characteristics of wide scope of plastic,stable heat-treatment quality, uniformand high hardness, high wear resistance,high strength of touching fatigue. It has excellent machining property afer spheroidize annealing.
The use of products The product is used to produce balls and rings of bearing. Future Development By rational rolling and cooling process, the product can be spheroidized on-line and can be used in drawing and machining directly by customers. By combining re-spheroidize annealing and re-crystallisation of semi-finished product, the steel wire process can be simplified.
Product show:
- Q: Can special steel be used in the nuclear power industry?
- Yes, special steel can be used in the nuclear power industry. Specialized steel alloys, such as stainless steel and low alloy steel, are commonly used in the construction of nuclear reactors and other components due to their high strength, corrosion resistance, and ability to withstand high temperatures and radiation. These materials are crucial for ensuring the safety and reliability of nuclear power plants.
- Q: What are the different forging methods used for special steel?
- Special steel can be forged using several different methods, including open die forging, closed die forging, and ring rolling. Open die forging, also known as smith forging, involves heating the metal and shaping it between flat dies or anvils. The metal is hammered and rotated repeatedly until it reaches the desired shape. This method is ideal for producing customized large and complex shapes. Closed die forging, also known as impression die forging, requires placing the heated metal between multiple dies that have impressions of the final shape. The metal is compressed to fill the impressions and take on the shape of the dies. This method is suitable for producing accurately sized small to medium components. Ring rolling is a specific forging method used to create seamless rings. The metal is heated and positioned between two rollers, which apply pressure to shape the metal into a ring. This technique is commonly used for producing rings with thin walls and large diameters. Secondary forging processes can be employed to further enhance the properties of special steel. Heat treatment, such as annealing or quenching, can improve the material's strength and hardness. Additionally, machining operations can be performed to achieve the desired dimensions and surface finish. The choice of forging method for special steel depends on factors such as the desired shape, size, and properties of the final product. Each method has its own advantages and limitations, and manufacturers select the most appropriate technique based on the specific requirements of the application.
- Q: How does special steel contribute to the automotive aftermarket industry?
- The automotive aftermarket industry greatly benefits from the use of special steel, as it offers various advantages that enhance the performance, durability, and safety of vehicles. To begin with, special steel is renowned for its exceptional strength and durability. This characteristic allows manufacturers and suppliers to create high-performance components and parts that can withstand extreme conditions and heavy usage. Engine parts, suspension systems, and chassis components all benefit from the superior strength of special steel, ensuring their longevity and reliability. Furthermore, special steel provides excellent corrosion resistance, which is crucial for automotive components exposed to different weather conditions and road environments. By utilizing corrosion-resistant steel, suppliers can produce parts that are less susceptible to rust and degradation, ultimately prolonging the lifespan of vehicles and reducing the need for frequent replacements. Additionally, special steel enables the production of lightweight components without compromising on strength. As the demand for fuel efficiency and reduced emissions continues to grow, lightweight materials are highly sought after in the automotive industry. By utilizing special steel, suppliers can create lightweight parts that contribute to improved fuel economy and overall vehicle performance. Moreover, the versatility of special steel allows for the development of complex and intricate components, which supports advancements in vehicle technology. From precision-engineered gears and shafts to specialized parts for electric vehicles, special steel can be tailored to meet specific automotive requirements, driving continuous innovation within the industry. Finally, special steel offers cost-effectiveness in the automotive aftermarket industry. While the initial cost of special steel may be higher than conventional steel, its durability and longevity result in reduced maintenance and replacement costs over time. This benefit is particularly significant for suppliers and vehicle owners, as it helps minimize expenses and ensures a higher return on investment. In conclusion, special steel plays a crucial role in the automotive aftermarket industry by providing strength, durability, corrosion resistance, lightweight properties, versatility, and cost-effectiveness. These qualities contribute to the overall performance, safety, and longevity of vehicles, making special steel an essential material in the development of high-quality aftermarket components and parts.
- Q: Is special steel suitable for manufacturing cutting tools?
- Yes, special steel is highly suitable for manufacturing cutting tools. Special steel refers to steel that has been specifically designed and processed to possess exceptional properties such as high hardness, toughness, and wear resistance. These characteristics make special steel an ideal choice for cutting tools as they enable the tools to withstand the high stresses and pressures involved in cutting operations. The hardness of special steel ensures that cutting tools can maintain their sharpness for a longer period of time, leading to improved cutting performance and efficiency. Additionally, the toughness of special steel allows cutting tools to resist chipping, cracking, or breaking during use, enhancing their durability and longevity. Furthermore, the wear resistance of special steel ensures that cutting tools can withstand the abrasive forces encountered during cutting operations without significant loss of material or deterioration. This helps to maintain the accuracy and precision of the cutting tools over time. Moreover, special steel can be tailored to meet specific requirements for different cutting applications. For example, high-speed steel (HSS) is a type of special steel that is particularly suitable for cutting tools used in high-speed machining operations. HSS possesses excellent heat resistance and can retain its hardness even at elevated temperatures. In conclusion, special steel is highly suitable for manufacturing cutting tools due to its hardness, toughness, wear resistance, and ability to be customized for specific cutting applications. These properties enable cutting tools to deliver optimal cutting performance, durability, and accuracy.
- Q: How does special steel perform in extreme pressure conditions?
- Special steel offers exceptional performance in conditions of extreme pressure, thanks to its unique composition and manufacturing process. It possesses high strength, durability, and resistance to deformation, which make it ideal for applications involving extreme pressures. Under extreme pressure, special steel maintains its structural integrity without significant deformations. This is possible due to its impressive tensile strength, allowing it to withstand tremendous forces without breaking or bending. Furthermore, the hardness and toughness of special steel enable it to resist wear and damage caused by intense pressure. In addition, special steel exhibits excellent heat resistance, which is vital in extreme pressure situations where elevated temperatures are common. Its ability to withstand high temperatures without compromising its mechanical properties ensures its dependability and effectiveness even in the most demanding circumstances. Moreover, the corrosion resistance properties of special steel are outstanding, making it suitable for use in extreme pressure environments where exposure to corrosive substances is a concern. Its resistance to oxidation and other chemical reactions prevents deterioration or weakening, guaranteeing long-term performance and reliability. Overall, special steel excels in extreme pressure conditions due to its high strength, durability, resistance to deformation, heat resistance, and corrosion resistance. These characteristics make it a reliable and efficient choice for various industries and applications that operate in extreme pressure environments, including oil and gas exploration, aerospace, automotive, and heavy machinery manufacturing.
- Q: What are the requirements for special steel used in transportation infrastructure?
- Special steel used in transportation infrastructure must meet certain requirements to ensure its durability, strength, and resistance to various environmental factors. Some of the key requirements for special steel in transportation infrastructure include: 1. High Strength: Special steel used in transportation infrastructure must have high tensile strength to withstand heavy loads and stresses. It should be able to resist deformation and maintain its structural integrity under significant pressure. 2. Corrosion Resistance: Transportation infrastructure is often exposed to harsh weather conditions, including rain, humidity, and saltwater. Special steel must have excellent corrosion resistance to prevent rusting and deterioration over time. This is particularly important for bridges, tunnels, and railway tracks located near coastal areas. 3. Fatigue Resistance: Transportation infrastructure experiences repetitive and cyclic loading, which can lead to fatigue failure if the steel used is not resistant to this type of stress. Special steel should have good fatigue resistance properties to prevent cracking and failure due to repeated loading. 4. Weldability: Special steel used in transportation infrastructure should have good weldability to facilitate construction and repairs. It should be easily weldable without compromising its strength and performance. 5. Impact Resistance: Transportation infrastructure, such as guardrails and crash barriers, is subjected to impact loads from vehicles. Special steel should possess excellent impact resistance to absorb and distribute the energy from impacts, reducing the risk of catastrophic failure. 6. Fire Resistance: In the event of a fire, special steel used in transportation infrastructure should have a high melting point and retain its structural integrity for a reasonable amount of time. This is crucial for ensuring the safety of passengers and minimizing the damage caused by fire incidents. 7. Low Maintenance: For cost-effectiveness and long-term sustainability, special steel used in transportation infrastructure should require minimal maintenance. It should have a long service life and minimal need for repainting, repair, or replacement. Meeting these requirements ensures that the special steel used in transportation infrastructure can provide a safe, reliable, and durable foundation for roads, bridges, railway tracks, and other critical components of the transportation network.
- Q: How does special steel perform in aerospace applications?
- Special steel performs exceptionally well in aerospace applications due to its unique properties. It possesses high strength, excellent corrosion resistance, and exceptional heat resistance, making it ideal for manufacturing critical components such as turbine blades, landing gear, and structural frameworks. The use of special steel ensures the durability and safety of aerospace systems, enabling them to withstand extreme conditions, such as high temperatures and pressure, encountered during flight.
- Q: What are the different methods of surface cleaning for special steel?
- There are several different methods of surface cleaning for special steel, each with its own advantages and applications. Some of the most common methods include: 1. Mechanical Cleaning: This method involves the use of mechanical tools like wire brushes, sandpaper, or abrasive pads to physically remove dirt, rust, or other contaminants from the surface of the steel. Mechanical cleaning is effective for light to moderate surface contamination and is often used as a pre-treatment before other cleaning methods. 2. Chemical Cleaning: Chemical cleaning involves the use of specific chemicals or cleaning agents to dissolve or loosen contaminants on the surface of the special steel. These chemicals can be applied through brushing, spraying, or immersion methods. Acid-based cleaners are commonly used for removing scale, rust, or oxide deposits, while alkaline cleaners are effective for removing oils, greases, or organic residues. 3. Electrochemical Cleaning: This method utilizes electrochemical reactions to remove surface contaminants from special steel. Electrochemical cleaning involves the use of an electric current and an electrolyte solution to dissolve or dislodge dirt, rust, or other deposits. This method is particularly useful for cleaning intricate or hard-to-reach areas on the steel surface. 4. Ultrasonic Cleaning: Ultrasonic cleaning involves the use of high-frequency sound waves in a liquid medium to agitate and remove contaminants from the surface of special steel. This method is highly effective for removing fine particles, oils, greases, or other organic residues from complex or delicate surfaces. 5. High-pressure Water Jetting: High-pressure water jetting uses a focused stream of pressurized water to remove contaminants from the special steel surface. This method is particularly useful for removing heavy deposits, coatings, or paints from large areas. It can be adjusted to different pressure levels to accommodate various degrees of surface contamination. It is important to note that the choice of surface cleaning method for special steel will depend on factors such as the type and extent of contamination, the condition of the steel surface, the desired level of cleanliness, and the specific requirements of the application. It is recommended to consult with experts or professionals in the field to determine the most suitable method for a given situation.
- Q: What are the different methods of preventing stress corrosion cracking in special steel?
- To prevent stress corrosion cracking in special steel, various approaches can be implemented: 1. Optimal steel alloy selection is pivotal, as it enhances resistance to stress corrosion cracking. Alloys like stainless steel, duplex stainless steel, and nickel-based alloys are renowned for their effectiveness against this type of corrosion. 2. Implementing surface treatments such as passivation or electroplating forms a protective layer on the steel surface. This serves to prevent the penetration of corrosive substances and diminishes the likelihood of stress corrosion cracking. 3. Employing stress relieving through heat treatment methods aids in reducing residual stresses within the steel, which can contribute to stress corrosion cracking. This procedure involves heating the steel to a specific temperature and gradually cooling it, effectively minimizing residual stresses. 4. The use of corrosion inhibitors aids in safeguarding the steel from corrosive environments. These inhibitors can be introduced into the system or applied as a coating on the steel surface, creating a barrier that prevents corrosive substances from reaching the steel. 5. Environmental control plays a crucial role in stress corrosion cracking prevention. Monitoring and regulating factors such as temperature, humidity, and the presence of corrosive substances are essential in minimizing the risk. 6. Incorporating cathodic protection techniques can effectively prevent stress corrosion cracking. This involves applying sacrificial or impressed current to the steel, acting as a cathode and shielding the steel from corrosion. 7. Proper design considerations are paramount in preventing stress corrosion cracking. Factors such as avoiding sharp edges, minimizing stress concentrations, and ensuring adequate drainage to prevent the accumulation of corrosive substances significantly reduce the risk. By employing a combination of these methods, stress corrosion cracking in special steel can be effectively prevented, ensuring the longevity and integrity of the structure.
- Q: Can special steel be used in the defense industry?
- Yes, special steel can be used in the defense industry. Special steel alloys are often used in the manufacturing of military vehicles, aircraft, naval vessels, and weaponry due to their exceptional strength, durability, and resistance to corrosion. These properties make special steel an ideal material for critical components and structures that require high performance and reliability in defense applications.
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SAE 52100 Bearing Steel Round Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 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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