Hot rolled High Quality 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
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.
- Q: What are the challenges in machining special steel alloys?
- Machining special steel alloys presents several challenges. These alloys are typically harder and more brittle than regular steel, making them more difficult to cut and shape. They also tend to generate higher heat during the machining process, increasing the risk of tool wear and thermal damage. Special steel alloys may also have complex microstructures and chemical compositions, which can result in uneven material removal and unpredictable machining behavior. Additionally, these alloys often have lower machinability ratings, requiring specialized cutting tools and techniques to achieve desired results. Overall, the challenges in machining special steel alloys lie in their hardness, heat generation, complex microstructures, and lower machinability, necessitating expertise and careful consideration during the machining process.
- Q: Can special steel be used in the mining industry?
- Yes, special steel can be used in the mining industry. Special steel is known for its high strength, durability, and resistance to wear and corrosion, making it suitable for various applications in mining such as drilling equipment, crushers, conveyor systems, and extraction machinery. Additionally, special steel can withstand harsh operating conditions and extreme temperatures commonly encountered in mining operations, making it a reliable and efficient choice for this industry.
- Q: What is the impact of impurities on the machinability of special steel?
- The impact of impurities on the machinability of special steel can be significant. Impurities in the steel, such as sulfur, phosphorus, and non-metallic inclusions, can adversely affect the performance and machinability of the material. Sulfur is commonly present in steel as an impurity, and it tends to form brittle compounds that can reduce the machinability of the steel. High levels of sulfur can lead to increased tool wear, poor surface finish, and decreased cutting tool life. Therefore, it is essential to control the sulfur content in special steel to ensure good machinability. Phosphorus is another impurity that can have a negative impact on machinability. It tends to form hard and brittle compounds, which can cause tool chipping, breakage, and poor chip control. High levels of phosphorus can also lead to reduced cutting tool life and surface finish. Non-metallic inclusions, such as oxides, sulfides, and silicates, are also significant impurities in steel. These inclusions can act as stress concentrators, leading to increased tool wear and decreased machining quality. Large inclusions can cause tool breakage and interrupt the machining process. Therefore, minimizing the presence of non-metallic inclusions is crucial for improving the machinability of special steel. Overall, impurities in special steel can have a detrimental effect on its machinability. To ensure good machinability, it is important to control and minimize the levels of impurities like sulfur, phosphorus, and non-metallic inclusions. This can be achieved through careful selection of raw materials, refining processes, and quality control measures during the manufacturing of special steel.
- Q: What are the different non-destructive testing methods used for special steel?
- Some of the common non-destructive testing methods used for special steel include ultrasonic testing, magnetic particle testing, liquid penetrant testing, radiographic testing, and eddy current testing. These methods allow for the detection of internal and surface defects in the steel without causing any damage or alteration to the material.
- Q: What are the different methods of joining special steel components?
- There are several methods of joining special steel components, each with its own advantages and applications. Some of the most common methods include welding, brazing, soldering, and mechanical fastening. 1. Welding: Welding is one of the most widely used methods for joining special steel components. It involves melting the base metals and adding a filler material to create a strong bond. Different welding techniques, such as arc welding, gas welding, or laser welding, can be used depending on the specific requirements and properties of the steel components. 2. Brazing: Brazing is a joining process that uses a filler material with a lower melting point than the base metals. The filler material is heated and distributed between the components, creating a strong bond when it solidifies. Brazing is often used for high-temperature applications and can be done with a torch, furnace, or induction heating. 3. Soldering: Soldering is similar to brazing but uses a lower melting point filler material called solder. It is commonly used for electrical and electronic applications, as well as for joining small or delicate steel components. Soldering requires less heat and can be done with a soldering iron or a hot air gun. 4. Mechanical Fastening: Mechanical fastening involves joining components using mechanical means such as screws, bolts, nuts, or rivets. This method is often used when disassembly or reassembly is required, as it allows for easy removal and replacement of components. Mechanical fastening is suitable for applications where a strong and reliable joint is needed but welding or brazing may not be feasible. 5. Adhesive Bonding: Adhesive bonding is another method used for joining special steel components. It involves applying an adhesive material to the mating surfaces and allowing it to cure or harden, creating a strong bond. Adhesive bonding is often used when a continuous joint is required or when joining dissimilar materials. It is also advantageous for applications that require vibration damping or sealing. Each method of joining special steel components has its own strengths and limitations, and the selection of the appropriate method depends on factors such as the specific requirements of the application, the properties of the steel components, and the desired strength and durability of the joint.
- 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: How does special steel perform in high-temperature fatigue resistance?
- The excellent performance of special steel in high-temperature fatigue resistance is well-known. Unlike ordinary steel, special steel contains alloying elements like chromium, nickel, and molybdenum, which improve its mechanical properties and resistance to fatigue at elevated temperatures. When exposed to high temperatures, the microstructure of special steel undergoes significant changes that can result in the initiation and propagation of cracks. However, the presence of alloying elements in special steel plays a crucial role in stabilizing the microstructure, thereby preventing the formation and growth of cracks. This ensures that the material can withstand cyclic loading and maintain its structural integrity even in extreme temperature conditions. Furthermore, special steel possesses exceptional heat resistance, allowing it to retain its mechanical strength and hardness at high temperatures. This characteristic is vital in applications where components are subjected to repeated thermal cycles or continuous exposure to high temperatures, such as in gas turbines, power plants, and aerospace engines. Moreover, the composition and heat treatment of special steel also influence its high-temperature fatigue resistance. By precisely controlling the alloying elements and employing appropriate heat treatment processes, the fatigue life and resistance to thermal fatigue of the material can be further improved. To conclude, special steel demonstrates remarkable performance in high-temperature fatigue resistance due to its unique composition and microstructure. Its ability to endure cyclic loading, maintain mechanical properties, and resist crack formation in extreme temperature conditions make it a preferred choice for demanding applications across various industries.
- Q: What are the challenges in surface treating special steel?
- Some of the challenges in surface treating special steel include achieving uniform and consistent coatings, ensuring adhesion of the coating to the steel substrate, overcoming the high hardness of the steel, preventing distortion or warping during the treatment process, and managing the potential for thermal degradation or oxidation. Additionally, the presence of unique alloying elements in special steel may require specialized treatment techniques to achieve the desired surface properties.
- Q: How does special steel perform in high-temperature oxidation with sulfur-containing atmospheres?
- Special steel performs well in high-temperature oxidation with sulfur-containing atmospheres due to its enhanced resistance to sulfur attack. The alloying elements present in special steel, such as chromium, molybdenum, and nickel, provide excellent protection against sulfur-induced corrosion and oxidation. This makes special steel an ideal choice for applications where exposure to high temperatures and sulfur-containing atmospheres is a concern.
- Q: How does special steel contribute to reducing energy consumption?
- Special steel contributes to reducing energy consumption in several ways. Firstly, special steel is known for its high strength and durability, which allows for the construction of lighter and more efficient structures. This means that less material is required, resulting in reduced energy consumption during the manufacturing and transportation processes. Additionally, special steel has excellent heat resistance properties, making it ideal for the production of energy-efficient appliances and machinery. By using special steel in these applications, energy losses due to heat transfer are minimized, resulting in lower energy consumption. Furthermore, special steel is often used in the production of renewable energy technologies such as wind turbines and solar panels. By utilizing these energy sources, which rely on steel components, the overall demand for fossil fuels and non-renewable energy is reduced, consequently decreasing energy consumption. Overall, the use of special steel in various industries plays a significant role in reducing energy consumption and promoting sustainability.
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Hot rolled High Quality 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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