52100 Bearing Steel Rounds Hot Rolled Treatment
- 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
52100 Bearing Steel Rounds Hot Rolled Treatment
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 | ||
Characteristics:
1) Good hardability and high toughness
2) Long fatigue life
3) Medium cold processing plasticity
4) Certain machinability
5) Poor weldability
Application:
1) Steel ball, roller and collar of large machinery bearing
2) High-hardness and high contact fatigue strength machinery parts with heavy load, such as axis of rotation, blade, stator pump, profiling, sleeve, mandril, etc.
Photos of our products:
- Q: How does special steel contribute to the automotive exhaust system industry?
- Special steel contributes to the automotive exhaust system industry by offering enhanced durability, corrosion resistance, and heat resistance. It allows for the production of exhaust components that can withstand high temperatures and harsh conditions, resulting in improved performance and longevity of the system. Additionally, special steel enables the design of lightweight exhaust systems, which contribute to fuel efficiency and reduce emissions.
- Q: How does special steel contribute to the construction machinery industry?
- High-strength and durable components are essential in the construction machinery industry, and special steel plays a crucial role in providing these. It is able to withstand extreme stress and load-bearing requirements, which is particularly important considering the heavy-duty applications of construction machinery. Special steel's excellent mechanical properties allow it to resist severe conditions, such as heavy loads, vibrations, and impacts, ensuring the safety and reliability of the equipment. Special steel is also widely used in critical components of construction machinery, including booms, buckets, tracks, and gears. These components face intense wear and tear due to constant use in harsh environments. However, special steel, engineered with enhanced hardness and wear resistance, helps prolong the lifespan of these components, reducing maintenance costs and downtime. In addition to its durability, special steel provides superior corrosion resistance, a crucial feature for construction machinery used in humid or corrosive environments. By preventing rust and decay, special steel helps maintain the equipment's performance and longevity, ultimately increasing productivity and efficiency in construction projects. Furthermore, special steel allows the construction machinery industry to achieve innovative designs and advanced functionalities. Its versatility allows for the creation of complex shapes and precise tolerances, which are necessary for optimizing machinery performance and efficiency. Special steel also enables the incorporation of advanced technologies, like sensors and automation, enhancing the accuracy and productivity of construction equipment. To summarize, special steel significantly contributes to the construction machinery industry by withstanding extreme conditions, providing superior wear resistance and corrosion protection, and enabling innovative designs. By utilizing special steel in the manufacturing process, construction machinery manufacturers can ensure the durability, safety, and efficiency of their equipment, ultimately benefiting the construction industry as a whole.
- Q: How does special steel contribute to the construction aftermarket industry?
- Special steel plays a crucial role in the construction aftermarket industry by offering a wide range of benefits and applications. Firstly, special steel possesses exceptional strength and durability, making it an ideal material for constructing various infrastructure elements such as bridges, buildings, and roads. Its high tensile strength allows for greater load-bearing capacity, increasing the overall safety and longevity of structures. Additionally, special steel is known for its resistance to corrosion and extreme weather conditions, which is particularly important in construction projects. By using special steel, construction companies can ensure that their structures are better equipped to withstand harsh environments, reducing the need for frequent repairs and replacements. Moreover, special steel provides versatility in terms of fabrication and design. It can be easily molded and shaped into different forms, allowing architects and engineers to create innovative and aesthetically pleasing structures. This flexibility enables the construction aftermarket industry to meet various design requirements while maintaining structural integrity. Furthermore, special steel offers cost-effectiveness in the long run. Although the initial investment in special steel may be higher than other materials, its durability and low maintenance requirements result in reduced lifecycle costs. This makes it a cost-efficient choice for construction projects, as it minimizes ongoing expenses related to repairs and replacements. Lastly, special steel contributes to sustainability in the construction industry. Due to its strength and durability, structures built with special steel have a longer lifespan, reducing the need for frequent demolitions and rebuilds. Additionally, special steel is highly recyclable, allowing for a more sustainable approach to construction by minimizing waste and conserving resources. In conclusion, special steel plays a significant role in the construction aftermarket industry by providing superior strength, durability, resistance, versatility, cost-effectiveness, and sustainability. Its unique properties contribute to safer, longer-lasting, and more aesthetically pleasing structures, making it an essential material for construction projects.
- Q: Can special steel be used in electrical applications?
- Yes, special steel can be used in electrical applications. Special steel, such as electrical steel or transformer steel, is specifically designed to have low electrical resistance and high magnetic permeability, making it ideal for use in electrical equipment like transformers, motors, and generators.
- Q: What are the different galvanizing techniques used for special steel?
- There are several galvanizing techniques used for special steel, including hot-dip galvanizing, electro-galvanizing, and mechanical galvanizing. Hot-dip galvanizing involves immersing the steel in a bath of molten zinc, creating a thick, durable coating. Electro-galvanizing, on the other hand, uses an electrical current to deposit a thin layer of zinc onto the steel surface. Mechanical galvanizing involves tumbling the steel in a zinc powder and glass bead mixture, which adheres to the surface through friction. Each technique has its own advantages and is used depending on the specific requirements of the application.
- Q: How does special steel perform in cryogenic applications?
- Special steel is renowned for its exceptional performance in cryogenic applications, characterized by extremely low temperatures that fall below -150 degrees Celsius (-238 degrees Fahrenheit). Unlike regular steel, which tends to become brittle and weaker in such conditions, special steel, also referred to as cryogenic steel or low-temperature steel, is specifically engineered to withstand these extreme cold temperatures. One of the key advantages of special steel lies in its ability to maintain its mechanical properties even at cryogenic temperatures. It retains its strength, toughness, and ductility, enabling it to endure the stresses and strains imposed on it in cryogenic environments. As a result, special steel finds application in various fields, including aerospace, energy, and healthcare, where it is used in cryogenic storage tanks, pipelines, and equipment. Another significant feature of special steel is its excellent resistance to brittle fracture at low temperatures. This is of utmost importance since brittle fractures occur when materials become excessively brittle and fail under stress. The distinct composition and processing methods employed in special steel help prevent such fractures, ensuring the integrity and safety of components within cryogenic systems. Furthermore, special steel possesses a low coefficient of thermal expansion, meaning it undergoes minimal dimensional changes when exposed to temperature fluctuations. This characteristic proves highly advantageous in cryogenic applications as it preserves the stability and reliability of equipment and structures. Additionally, special steel exhibits commendable corrosion resistance, which is vital in cryogenic environments where the presence of moisture and certain chemicals can accelerate corrosion processes. By resisting corrosion, special steel enhances the longevity and durability of components, thereby reducing maintenance and replacement costs. In conclusion, special steel is the preferred choice for cryogenic applications due to its ability to maintain mechanical properties, resist brittle fracture, display low thermal expansion, and exhibit corrosion resistance. These properties render it a dependable and efficient material for use in cryogenic systems, providing the necessary strength and durability even under extremely low-temperature conditions.
- Q: Can special steel be used in the jewelry industry?
- Yes, special steel can be used in the jewelry industry. It is often used as an alternative to precious metals like gold or silver due to its durability and affordability. Special steel can be used to create unique and stylish jewelry pieces, such as rings, bracelets, and necklaces, that are resistant to tarnish and wear.
- Q: How does hot rolling affect the microstructure of special steel?
- Hot rolling affects the microstructure of special steel by causing recrystallization and grain growth. The high temperature during the rolling process allows the steel to undergo plastic deformation, leading to the formation of new grains with a finer size. This results in improved mechanical properties such as increased hardness and strength. Additionally, hot rolling can also help in eliminating any residual stresses and improving the overall homogeneity of the steel's microstructure.
- Q: What are the applications of special steel in the renewable energy sector?
- Special steel has various applications in the renewable energy sector. It is commonly used in the manufacturing of wind turbines, solar panel frames, and hydroelectric power plants. The high strength and corrosion resistance properties of special steel make it suitable for withstanding harsh environmental conditions, ensuring the longevity and efficiency of renewable energy infrastructure. Additionally, special steel is also utilized in the construction of energy storage systems, such as batteries and fuel cells, due to its durability and ability to withstand extreme temperatures. Overall, special steel plays a crucial role in supporting the development and sustainability of the renewable energy industry.
- Q: How does special steel resist oxidation?
- The outstanding resistance to oxidation exhibited by special steel is well-known. This is mainly attributed to the inclusion of elements like chromium, nickel, and manganese in its composition. These elements combine to create a passive film, known as a protective layer, on the steel's surface. This film effectively shields the steel from oxygen and moisture. Chromium is the principal element responsible for the oxidation resistance of special steel. It undergoes a reaction with atmospheric oxygen, resulting in the formation of a thin layer of chromium oxide on the steel's surface. This oxide layer is exceptionally stable and prevents any further oxidation of the underlying metal. It acts as a protective shield, hindering the penetration of oxygen and moisture into the steel, which could otherwise lead to corrosion or rusting. Moreover, nickel and manganese also contribute to the oxidation resistance of special steel. They assist in stabilizing the passive film created by chromium oxide and enhance its protective properties. These elements also bolster the steel's ability to withstand high temperatures and corrosive environments. Furthermore, the composition and processing techniques employed in the production of special steel play a vital role in its oxidation resistance. The steel is often subjected to heat treatment processes, such as annealing or quenching, which further enhance its resistance to corrosion. Through meticulous control of alloying elements and precise heat treatment procedures, a robust and long-lasting passive film is formed. In conclusion, special steel's ability to resist oxidation is primarily due to the presence of chromium, nickel, and manganese, which collaborate to create a protective layer on its surface. This passive film acts as a barrier against oxygen and moisture, effectively preventing corrosion and rusting. Additionally, the composition and processing techniques utilized during production significantly contribute to the exceptional oxidation resistance of special steel.
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52100 Bearing Steel Rounds Hot Rolled Treatment
- 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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