High Quality Hot rolled Bearing Special Steel Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 500 m.t./month
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Product Description:
OKorder is offering Hot rolled Bearing Special Steel Bar at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Our products have been used in all kinds of areas, such as aviation, aerospace, navigation, nuclear, energy, chemical industry, electronic information, petrochemical, automotive, instrument and meter, Communication ,transportation, and medical instruments, etc. Bearing ring,steel rolling mill ,machinery, 100Cr6 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile, bags, electronics.
Product Advantages:
OKorder's Hot rolled Bearing Special Steel Bar are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Specifications of Bearing Steel
1. Dimensional sizes: Thickness: 14~100mm.Length:3000~5800mm,Diameter :14-500mm
2.Chemical composition:
C | Si | Mn | Cr | Ni | Cu |
Equal or less than | |||||
0.95-1.05 | 0.15-0.35 | 0.20-0.40 | Cr:1.30-1.65 | 0.30 | 0.25 |
3. Grade: SAE51200/ GCr15 / 100cr6
4. Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
5. Surface requirements: Black, grinding, bright, polish
6. Characters:
1) Comprehensive properties
2) Good performance in cutting and processing after spheroids annealing
3) High hardness and homogenization after quenching and tempering
4) High abrasive resistance and fatigue resistance
7. Payment terms: T/T or L/C at sight
Usage & Applications of Bearing Steel
Our products have been used in all kinds of areas, such as aviation, aerospace, navigation, nuclear, energy, chemical industry, electronic information, petrochemical, automotive, instrument and meter, Communication ,transportation, and medical instruments, etc. Bearing ring,steel rolling mill ,machinery, 100Cr6 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile, bags, electronics.
Packaging & Delivery of Bearing Steel
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.
Note:
1. According to national standard (GB) for our products, if not, supply according to national standards (GB) or agreement.
2. We can not only provide electric furnace +LF+VD and electro-slag re-melting (ESR)steel forging materials, but also forging products of piece, bar, etc.
3. Our company is equipped with roll equipment and can provide our customers with roll billets or finished.
4. Please send us your detailed specifications when inquire. We will reply to you ASAP.
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4: What makes stainless steel stainless?
A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
- Q: What are the different classifications of special steel?
- Special steel is a broad term that encompasses various types of steel alloys that possess unique properties and characteristics, making them suitable for specific applications. There are several classifications of special steel, including: 1. Stainless Steel: This type of special steel contains a high percentage of chromium, which provides excellent corrosion resistance. It also typically contains other elements like nickel and molybdenum, enhancing its strength and durability. Stainless steel is commonly used in applications that require resistance to oxidation, heat, chemicals, and wear, such as in food processing, medical devices, and construction. 2. Tool Steel: Tool steel is specifically designed for manufacturing tools, dies, and molds. It is known for its exceptional hardness, wear resistance, and toughness. Tool steel is further classified into several subcategories, including high-speed steel (HSS), cold work steel, hot work steel, and plastic mold steel, each tailored for specific tooling applications. 3. Alloy Steel: Alloy steel is a type of special steel that contains additional alloying elements apart from carbon. These elements, such as manganese, silicon, nickel, chromium, and molybdenum, are added to enhance specific properties like strength, toughness, hardenability, and corrosion resistance. Alloy steels are used in various applications, such as automotive components, machinery, construction, and aerospace. 4. Spring Steel: This type of special steel is specifically designed to withstand repeated bending or twisting without permanently deforming. Spring steel has excellent elasticity and fatigue resistance, making it suitable for applications such as springs, suspension systems, and high-performance automotive parts. 5. Bearing Steel: Bearing steel is engineered to provide high hardness, wear resistance, and dimensional stability necessary for manufacturing bearings. It typically contains high levels of carbon, chromium, and other alloying elements, ensuring the required mechanical properties for reliable and long-lasting bearings. 6. Electrical Steel: Electrical steel, also known as silicon steel, is specifically designed for electrical applications. It possesses low electrical resistivity and high magnetic permeability, allowing it to efficiently conduct and transform electrical energy. Electrical steel is commonly used in transformers, electric motors, and generators. These classifications of special steel highlight the versatility and tailored properties of different steel alloys, enabling their application in a wide range of industries and specialized uses.
- Q: How is special steel used in the production of engine components?
- Special steel is used in the production of engine components due to its superior strength, durability, and heat resistance properties. It is commonly utilized to manufacture critical parts such as crankshafts, connecting rods, camshafts, valves, and piston rings. The high strength of special steel allows these engine components to withstand the extreme forces and temperatures experienced during engine operation, ensuring optimal performance and longevity of the engine.
- Q: Is special steel resistant to chemical corrosion?
- Yes, special steel is generally resistant to chemical corrosion. Special steel, also known as stainless steel, is a type of alloy that contains a minimum of 10.5% chromium. The addition of chromium in the steel composition forms a passive oxide layer on the surface, which acts as a protective barrier against corrosion. This oxide layer is highly stable and prevents the steel from reacting with various chemicals and corrosive substances. Additionally, special steel may also contain other alloying elements such as nickel, molybdenum, and titanium, which further enhance its resistance to chemical corrosion. These elements increase the steel's ability to withstand exposure to acids, alkalis, salts, and other corrosive agents commonly found in industrial and environmental settings. However, it is important to note that the resistance of special steel to chemical corrosion may vary depending on the specific grade and composition. Different grades of stainless steel offer different levels of corrosion resistance, and it is crucial to select the appropriate grade based on the intended application and the specific corrosive environment. In summary, while special steel is generally resistant to chemical corrosion, the specific resistance can vary depending on the grade and composition. Therefore, it is essential to consider the specific requirements and consult with experts to choose the most suitable special steel for a particular application.
- Q: How does special steel perform in surface hardening applications?
- Special steel is renowned for its exceptional performance in surface hardening applications, as it possesses certain desirable properties such as high strength, toughness, and resistance to corrosion and heat. Unlike regular steel, special steel exhibits superior characteristics when it comes to surface hardening. This is due to the presence of alloying elements like chromium, molybdenum, and vanadium, which enhance its hardenability and allow for effective heat treatment processes such as carburizing, nitriding, or induction hardening. These processes alter the microstructure of the steel surface, resulting in increased hardness and wear resistance. What sets special steel apart is its ability to be hardened to a greater depth compared to regular steel. This quality makes it an ideal choice for surface hardening applications, as the hardened layer provides protection against abrasion, erosion, and fatigue, significantly prolonging the lifespan of the component. Moreover, the improved wear resistance and hardness of special steel make it suitable for industries such as automotive, aerospace, and manufacturing, where components are subjected to extreme conditions and high levels of stress. Furthermore, even after surface hardening, special steel retains its exceptional mechanical properties, ensuring durability and the ability to withstand heavy loads and impacts without failure. This combination of hardness and toughness is crucial for applications where both wear resistance and structural integrity are vital. In conclusion, special steel is highly effective in surface hardening applications due to its superior hardenability, wear resistance, and mechanical properties. Its ability to endure extreme conditions while maintaining durability makes it the preferred choice for industries that require components with enhanced surface hardness and longevity.
- Q: What are the applications of special steel in the automotive manufacturing process?
- Special steel is widely used in the automotive manufacturing process for various applications. It is commonly used for making engine components like crankshafts, camshafts, and connecting rods due to its high strength and resistance to wear and heat. Special steel is also used for manufacturing suspension systems, steering components, and chassis parts, as it offers excellent mechanical properties and durability. Additionally, special steel is utilized in the production of safety features such as seatbelt components and airbag systems, ensuring the highest level of protection for occupants. Overall, special steel plays a crucial role in enhancing the performance, reliability, and safety of vehicles in the automotive industry.
- Q: How does special steel contribute to the ductility of products?
- Special steel's ability to enhance the ductility of products is attributed to its distinct composition and manufacturing techniques. Ductility refers to a material's capacity to deform under stress without fracturing or breaking. In the case of special steel, its composition incorporates specific alloying elements that bolster its ductility. One way in which special steel augments ductility is by reducing the presence of impurities. Stringent quality control measures are employed during the production of special steel to ensure that impurities like sulfur and phosphorus are kept at minimal levels. These impurities have the potential to render steel brittle, thereby diminishing its ductility. By minimizing their presence, special steel retains its ability to deform without failure. Moreover, special steel often contains particular alloying elements such as nickel, chromium, and molybdenum. These alloying elements play a critical role in enhancing ductility. For instance, nickel enhances the toughness and ductility of steel by increasing its capacity to absorb energy before fracturing. On the other hand, chromium enhances the steel's resistance to corrosion and oxidation, thereby safeguarding its ductility. The manufacturing processes employed in producing special steel also contribute to its ductility. Precise temperature control during the heat treatment of special steel can optimize its microstructure, resulting in improved ductility. Additionally, special steel can undergo various forming processes, such as hot or cold rolling, which further refine its microstructure and augment its ductility. In conclusion, special steel's unique composition, minimal impurity levels, inclusion of specific alloying elements, and meticulous manufacturing processes significantly contribute to its ductility. Consequently, it is an excellent choice for applications that require deformation without failure, such as automotive components, machinery parts, and structural applications.
- Q: How does hot rolling affect the microstructure of special steel?
- Hot rolling, a metalworking process, involves heating steel above its recrystallization temperature and passing it through rollers to reduce thickness. This process significantly affects the microstructure of special steel. When steel is hot rolled, the high temperature prompts the grains to recrystallize, eliminating defects and creating a more uniform and refined grain structure. This leads to smaller, equiaxed grains, which enhance the steel's mechanical properties. Furthermore, hot rolling encourages the formation of microstructural features like dislocation cells and subgrains. These features increase the steel's strength and toughness, making it suitable for applications requiring high performance and durability. Moreover, hot rolling can cause certain alloying elements to precipitate within the steel. These precipitates play a crucial role in enhancing specific properties such as corrosion resistance or high-temperature strength. Overall, hot rolling profoundly impacts the microstructure of special steel. It refines the grain structure, promotes beneficial microstructural features, and facilitates the precipitation of alloying elements. These changes contribute to improved mechanical properties and performance, making hot rolled steel a preferred choice in industries like automotive, aerospace, and construction.
- Q: How does special steel contribute to the overall strength and durability of structures?
- Special steel contributes to the overall strength and durability of structures in several ways. Firstly, special steel is manufactured using specific alloying elements that enhance its mechanical properties, such as increased tensile strength and hardness. This makes it capable of withstanding higher loads and pressures, ensuring the structural integrity of the building or infrastructure. Moreover, special steel is known for its excellent corrosion resistance, which is crucial for structures exposed to harsh environmental conditions or in contact with corrosive substances. By preventing rust and degradation, special steel prolongs the lifespan of structures, reducing maintenance costs and the need for frequent repairs or replacements. Additionally, the unique properties of special steel allow for the creation of more streamlined and lightweight structures. Its high strength-to-weight ratio enables architects and engineers to design structures with thinner sections and reduced material usage without compromising strength. This not only saves costs but also minimizes the environmental impact associated with construction. Furthermore, special steel possesses exceptional toughness and impact resistance, making it highly resistant to fractures or buckling under extreme loads or dynamic forces. This property is particularly crucial for structures subjected to seismic events, heavy vibrations, or impacts, as it ensures the safety and stability of the building or infrastructure. In summary, special steel plays a vital role in enhancing the overall strength and durability of structures. Its unique mechanical properties, corrosion resistance, lightweight nature, and high toughness contribute to the longevity, safety, and cost-effectiveness of buildings and infrastructures.
- Q: What are the characteristics of special stainless steel?
- Special stainless steel, also known as superalloys, possess several unique characteristics. Firstly, they exhibit exceptional resistance to corrosion, making them highly durable and long-lasting in harsh environments. Additionally, they have high strength and toughness, allowing them to withstand extreme temperatures and pressures. Special stainless steel also demonstrates excellent heat resistance, making it suitable for applications in high-temperature environments. Furthermore, these alloys often exhibit superior chemical stability, resistance to wear and tear, and excellent mechanical properties, making them highly versatile for various industrial applications.
- Q: What are the different surface hardening grades of special steel?
- Different surface hardening grades of special steel are available, each with specific characteristics and properties. Some commonly used grades include the following: 1. Case-hardening steels: These grades, typically low carbon steels, develop a hard outer layer while maintaining a softer core. Carburizing or nitriding processes introduce carbon or nitrogen into the steel surface. These steels are used in applications where wear resistance and toughness are necessary. 2. Tool steels: These grades are designed for cutting, forming, and shaping tools. Tool steels are known for their high hardness, wear resistance, and ability to retain a cutting edge even at high temperatures. Various types of tool steels, such as HSS, hot work steel, cold work steel, and plastic mold steel, are suitable for specific applications. 3. Stainless steels: These grades contain a minimum of 10.5% chromium, providing excellent corrosion resistance. Stainless steels can be hardened through precipitation hardening or martensitic transformation. They are commonly used in industries requiring resistance to corrosion and high temperatures, such as food processing, chemical, and medical industries. 4. High-strength steels: These grades offer exceptional strength and toughness. They often contain alloying elements like manganese, chromium, or nickel to enhance their mechanical properties. High-strength steels are commonly used in structural applications, automotive components, and heavy machinery. 5. Maraging steels: These grades are known for their high strength, toughness, and excellent resistance to fracture. Maraging steels achieve these properties through a unique aging process involving precipitation hardening. They find applications in aerospace, defense, and tooling industries. 6. Bearing steels: These grades are specially formulated to provide excellent wear resistance and durability for bearing applications. Bearing steels often contain alloying elements like chromium, molybdenum, and vanadium to enhance their mechanical properties and fatigue resistance. These examples represent the diverse range of surface hardening grades of special steel, each offering unique properties and characteristics. This allows for a wide range of applications across various industries.
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High Quality Hot rolled Bearing Special Steel Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 500 m.t./month
OKorder Service Pledge
OKorder Financial Service
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