Bearing steel SAE52100 / GCr15 round bars
- 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:
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.
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 does special steel perform in terms of corrosion resistance in marine environments?
- Special steel alloys, specifically designed for marine environments, exhibit excellent corrosion resistance. Due to their higher levels of alloying elements like chromium, nickel, and molybdenum, these steels form a protective oxide layer that prevents rusting and pitting, even when exposed to saltwater and other harsh marine conditions. Their exceptional corrosion resistance ensures prolonged durability, reduced maintenance, and enhanced performance in marine environments.
- Q: How does special steel contribute to the fatigue resistance of products?
- Special steel contributes to the fatigue resistance of products by providing enhanced strength, durability, and resistance to wear and tear. The unique composition and manufacturing processes of special steel result in improved mechanical properties, such as higher tensile strength and hardness, which help products withstand repeated loading and stress cycles without failure. Additionally, special steel can be engineered to have specific microstructures that enhance its resistance to fatigue, preventing the growth of cracks and ensuring longer product lifespan.
- Q: What are the common failures or issues with special steel?
- Some common failures or issues with special steel can include brittleness, poor weldability, susceptibility to corrosion, and difficulty in heat treatment. Additionally, defects such as inclusions, voids, or cracks can also be observed, impacting the overall integrity and performance of the steel.
- Q: What are the specific requirements for special steel used in the marine industry?
- The specific requirements for special steel used in the marine industry include high corrosion resistance, ability to withstand extreme temperatures and pressure, superior strength and toughness, good weldability, and resistance to fatigue and cracking. Additionally, the steel should be able to withstand exposure to seawater and other harsh environmental conditions without deteriorating or causing any negative impact on the marine ecosystem.
- Q: What are the advancements and trends in the field of special steel?
- In recent years, the field of special steel has witnessed significant advancements and emerging trends that have revolutionized various industries. These advancements can be primarily attributed to the growing demand for high-performance materials in critical applications, such as aerospace, automotive, energy, and construction. One of the major advancements in the field of special steel is the development of advanced manufacturing techniques. Traditional steel production methods have been replaced by more efficient processes like electric arc furnaces and vacuum induction melting, resulting in improved steel quality and enhanced mechanical properties. These advancements have facilitated the production of special steels with superior strength, corrosion resistance, and heat resistance. Another significant trend in the field of special steel is the emergence of new alloy compositions. Researchers and manufacturers are continuously exploring and developing novel alloying elements to enhance the properties of special steels. For instance, the addition of elements like chromium, molybdenum, and vanadium has led to the development of stainless steels with exceptional resistance to corrosion and oxidation. Furthermore, the field of special steel has also witnessed advancements in heat treatment processes. By employing advanced heat treatment techniques like quenching and tempering, austempering, and martempering, special steels can achieve desired hardness, toughness, and dimensional stability. These advancements have significantly expanded the application range of special steels, allowing them to be used in critical components that operate under extreme conditions. In addition to advancements in manufacturing and alloy compositions, there is a growing trend towards the development of environmentally friendly special steels. With increasing concerns about sustainability and carbon footprint, researchers and manufacturers are focusing on reducing the environmental impact of steel production. This has led to the development of special steels with lower carbon content, as well as the implementation of energy-efficient manufacturing processes. Moreover, the field of special steel is witnessing the integration of digital technologies and automation. The use of artificial intelligence, machine learning, and data analytics is enabling manufacturers to optimize production processes, improve quality control, and reduce costs. This trend towards Industry 4.0 is transforming the way special steel is produced and utilized, ensuring greater efficiency and precision in the manufacturing process. In conclusion, the field of special steel is experiencing significant advancements and trends that are driving innovation in various industries. The development of advanced manufacturing techniques, new alloy compositions, improved heat treatment processes, environmentally friendly production methods, and the integration of digital technologies are revolutionizing the properties and applications of special steel. These advancements have not only enhanced the performance and durability of special steel but also opened up new possibilities for its utilization in critical applications.
- Q: How does special steel contribute to the packaging industry?
- Special steel contributes to the packaging industry by offering enhanced strength and durability to packaging materials and machinery. It helps in manufacturing high-quality packaging products with increased resistance to corrosion, impact, and wear, ensuring the protection and preservation of goods during transportation and storage. Additionally, special steel's versatility allows for the production of innovative packaging designs, enabling companies to create customized solutions that meet specific requirements and attract consumers.
- Q: What are the challenges in surface treating special steel?
- When it comes to surface treating special steel, a range of challenges can arise due to the unique properties and composition of the material. Some of the main challenges that need to be addressed are as follows: 1. Hardness: Special steels often possess a high level of hardness, which poses difficulties in achieving effective surface treatment. Traditional methods like heat treatment or chemical processes may not be sufficient to modify the surface properties without impacting the core strength. 2. Surface contamination: During the surface treatment process, special steels are vulnerable to contamination. Even the smallest traces of impurities or foreign materials can compromise the integrity of the treated surface. It is crucial to maintain a controlled environment and utilize clean equipment to minimize the risks of contamination. 3. Complex alloy composition: Special steels are typically alloyed with various elements to enhance specific characteristics, such as corrosion resistance or high temperature stability. This complex composition can make it challenging to find suitable surface treatment techniques that can effectively modify the surface properties without negatively affecting the overall performance of the alloy. 4. Adhesion and coating uniformity: Ensuring good adhesion and coating uniformity on special steel surfaces can be problematic. The surface characteristics and microstructure of special steels can make it challenging for coatings or treatments to properly and evenly adhere. Special attention must be paid to surface preparation and the selection of appropriate primers or coatings to ensure optimal adhesion and uniformity. 5. Heat sensitivity: Some special steels may be sensitive to heat during surface treatment processes. Excessive heat exposure can lead to changes in the material's properties, including structural alterations or deformation. It is essential to carefully control temperatures and employ suitable cooling methods to prevent any undesirable effects on the steel during the surface treatment process. 6. Cost: The process of surface treating special steel can be costly due to the specialized equipment, materials, and expertise required. Additionally, the challenges mentioned above can increase the complexity and time needed for surface treatment, resulting in higher costs. It is crucial to take these factors into consideration when planning and budgeting for surface treatment on special steel components.
- Q: What are the requirements for special steel used in wind turbines?
- The requirements for special steel used in wind turbines are crucial for ensuring the reliability, efficiency, and durability of these large-scale renewable energy systems. Here are some of the key requirements: 1. Strength and Durability: Special steel for wind turbines must possess high strength and durability to withstand the harsh operating conditions, including strong winds, vibrations, and extreme temperature variations. It should have a high fatigue resistance to endure cyclic loading over the turbine's operational life, which can be up to 20-25 years. 2. Corrosion Resistance: Wind turbines are often installed in coastal or offshore environments, where they are exposed to corrosive saltwater and salt-laden air. Therefore, the special steel used in wind turbines must have excellent corrosion resistance to prevent degradation and ensure long-term performance. 3. Weldability: The steel used in wind turbines should be suitable for welding processes to facilitate the fabrication and assembly of the turbine components. Good weldability allows for efficient construction and maintenance, reducing downtime and associated costs. 4. Low Temperature Toughness: Wind turbines are often located in regions with low temperatures, such as arctic or mountainous areas. Special steel used in these turbines should possess good low-temperature toughness, ensuring its mechanical properties remain intact even in cold climates. 5. Magnetic Properties: Wind turbines employ various electrical components, such as generators and transformers, where electromagnetic fields are present. Special steel used in these components should have specific magnetic properties to minimize energy losses and maximize the efficiency of the electrical system. 6. Cost-effectiveness: While meeting all the above requirements, the special steel used in wind turbines should also be cost-effective. It should offer a good balance between performance and cost to ensure the economic viability of wind energy projects. Meeting these requirements is essential to ensure the long-term operation and sustainability of wind turbines, enabling them to generate clean and renewable energy efficiently.
- Q: How does special steel resist fatigue?
- Special steel is designed to resist fatigue by incorporating specific properties that enhance its durability and strength. One of the primary factors that allows special steel to resist fatigue is its high tensile strength. This means that the steel can withstand large amounts of stress and load without deforming or breaking, which is crucial in preventing the initiation and propagation of fatigue cracks. Additionally, special steel often undergoes specific heat treatment processes, such as quenching and tempering, to further enhance its resistance to fatigue. This heat treatment modifies the microstructure of the steel, creating a fine and uniform grain structure that improves its mechanical properties. It increases the steel's hardness and toughness, making it less susceptible to fatigue failure. Furthermore, special steel can also contain alloying elements such as chromium, molybdenum, and vanadium, which contribute to its fatigue resistance. These alloying elements form carbides and other strengthening phases within the steel, resulting in improved hardness, strength, and resistance to fatigue crack propagation. Moreover, special steel can undergo specialized surface treatments, such as shot peening or nitriding. Shot peening bombards the steel surface with small metal particles, inducing compressive residual stresses. These compressive stresses counteract the tensile stresses that cause fatigue cracks, thus enhancing fatigue resistance. Nitriding involves diffusing nitrogen into the steel surface, creating a hardened layer that improves wear resistance and, consequently, fatigue resistance. In summary, special steel resists fatigue through a combination of factors, including high tensile strength, specific heat treatment processes, alloying elements, and specialized surface treatments. These properties work together to enhance the steel's durability, strength, and resistance to fatigue crack initiation and propagation, making it a reliable and long-lasting material in various applications.
- Q: Can special steel be used in the packaging industry?
- Yes, special steel can be used in the packaging industry. Special steel, such as stainless steel, offers excellent durability, corrosion resistance, and strength, making it suitable for various packaging applications. It can be used to manufacture packaging containers, machinery, and equipment, providing a reliable and long-lasting solution for packaging needs.
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Bearing steel SAE52100 / GCr15 round bars
- 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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