Hot Rolled Bearing Steel Bar with High Quality for Construction
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- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 100000 m.t./month
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Specifications of Hot Rolled Bearing Steel Bar GCr15 with High Quality for Construction:
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 Hot Rolled Bearing Steel Bar GCr15 with High Quality for Construction:
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 Hot Rolled Bearing Steel Bar GCr15 with High Quality for Construction:
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.
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.
Images:
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.
- Q: What are the different quality control measures for special steel production?
- There are several quality control measures implemented during special steel production, including rigorous inspections at various stages of the manufacturing process, such as raw material testing, chemical composition analysis, and heat treatment verification. Additionally, non-destructive testing techniques, such as ultrasonic testing and magnetic particle inspection, are employed to detect any defects or inconsistencies in the steel's structure. Furthermore, dimensional and surface quality checks are performed to ensure that the final product meets the required specifications and standards.
- Q: How does stainless steel contribute to the production of medical implants?
- Stainless steel contributes to the production of medical implants by providing a highly durable and corrosion-resistant material that is compatible with the human body. It is used in various implants such as joint replacements, dental implants, and surgical instruments due to its strength, biocompatibility, and ability to withstand sterilization processes.
- Q: What are the different forging methods used for special steel?
- There are several different forging methods that are commonly used for special steel. These methods include open die forging, closed die forging, and ring rolling. Open die forging, also known as smith forging, is a technique where the metal is heated and shaped between flat dies or anvils. The metal is repeatedly hammered and rotated to achieve the desired shape. This method is commonly used for producing large and complex shapes with a high degree of customization. Closed die forging, also known as impression die forging, involves placing the heated metal between two or more dies that contain impressions of the desired final shape. The metal is then compressed to fill the impressions and take on the shape of the dies. This method is commonly used for producing small to medium-sized components with high precision and dimensional accuracy. Ring rolling is a forging method specifically used for producing seamless rings. The metal is heated and placed between two rollers that apply pressure to shape the metal into a ring. This method is commonly used for producing rings with large diameters and thin walls. In addition to these primary forging methods, there are various secondary forging processes that can be used to further refine and enhance the properties of the special steel. These secondary processes include heat treatment, such as annealing or quenching, to improve the material's strength and hardness. Additionally, machining operations may be performed to achieve the desired final dimensions and surface finish. Overall, 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 offers its own advantages and limitations, and manufacturers select the most appropriate technique based on the specific requirements of the application.
- Q: What are the emerging trends in the special steel industry?
- Some of the emerging trends in the special steel industry include the growing demand for lightweight and high-strength steel in the automotive and aerospace sectors, the increasing adoption of advanced manufacturing technologies such as additive manufacturing, and the focus on sustainability and eco-friendly practices in steel production. Additionally, there is a rising emphasis on research and development to develop innovative alloys and steel grades that offer superior performance and durability for various applications.
- Q: What are the different surface treatment methods for special steel?
- Some of the different surface treatment methods for special steel include heat treatment, coating or plating, polishing, shot blasting, and passivation. Heat treatment involves subjecting the steel to specific temperatures and cooling processes to alter its properties. Coating or plating involves applying a layer of another material, such as zinc or chrome, to protect the steel from corrosion. Polishing is done to create a smooth and glossy surface finish. Shot blasting is a process that involves using abrasive materials to remove impurities and create a textured surface. Passivation is a chemical treatment used to remove iron contaminants and improve corrosion resistance. These methods can be utilized individually or in combination to enhance the surface characteristics of special steel.
- Q: What are the factors to consider when selecting special steel for a specific application?
- When choosing special steel for a particular use, there are several critical factors to take into account: 1. Mechanical properties play a crucial role in determining the steel's suitability for the application. Strength, hardness, toughness, and ductility are all important considerations. Matching the steel's mechanical properties to the specific requirements of the application is essential to achieve optimal performance and ensure safety. 2. The steel's resistance to corrosion is another key factor to consider. Different environments, such as marine, chemical, or high-temperature conditions, may necessitate the use of corrosion-resistant alloys or coatings. This is vital to ensure the steel's longevity and reliability in service. 3. Temperature resistance is crucial in many applications. The steel must be able to withstand high or low temperatures without compromising its mechanical properties. Factors like thermal expansion, thermal conductivity, and resistance to thermal fatigue should be taken into account to ensure effective performance in the intended environment. 4. If welding or fabricating the steel into complex shapes is necessary, the ease of weldability and fabricability becomes an important consideration. Certain steels may require specialized welding techniques or preheating to prevent cracking or distortion during fabrication. 5. Cost is a significant consideration as well. It is important to find a balance between the desired properties of the steel and the available budget. This ensures cost-effectiveness without compromising performance or safety. 6. The availability of the chosen steel grade in the required form, size, and quantity is another critical factor. It is crucial to ensure that the selected steel can be easily sourced and obtained within the required timeframe. This helps to avoid project delays or cost overruns. 7. Compliance with industry-specific standards, specifications, or regulations is essential. Depending on the industry or application, there may be specific requirements that the steel must meet. Selecting a steel grade that complies with these standards is necessary to ensure compliance and maintain necessary certifications or approvals. By considering these factors, engineers and manufacturers can make well-informed decisions when choosing special steel for specific applications. This ensures optimal performance, durability, and safety.
- Q: How does special steel perform in magnetic fields?
- Special steel typically has low magnetic permeability, which means it is not strongly affected by magnetic fields. This property makes it useful in applications where magnetic interference needs to be minimized, such as in electrical transformers or magnetic resonance imaging (MRI) machines.
- Q: What are the different methods of surface electropolishing for special steel?
- There are several methods of surface electropolishing for special steel, including the use of acid-based or alkaline-based electrolytes, pulse current electropolishing, and reverse current electropolishing. The choice of method depends on factors such as the type of special steel being treated and the desired surface finish.
- Q: What are the main characteristics of magnetic steel?
- Magnetic steel, also known as ferromagnetic steel, possesses several key characteristics that make it highly suitable for various industrial applications. Firstly, magnetic steel exhibits a strong magnetic field, which allows it to attract and hold magnetic materials. This property is crucial in the manufacturing of electrical devices, such as motors, transformers, and generators, where the steel is used to create magnetic circuits and enhance the efficiency of electromagnetic processes. Another important characteristic of magnetic steel is its high saturation magnetization, meaning it can reach a maximum magnetic flux density under a given magnetic field strength. This property ensures that magnetic steel can retain a strong magnetic field even when exposed to external forces or fluctuations in the magnetic field. This stability and reliability make it ideal for applications that require consistent magnetic performance. Furthermore, magnetic steel possesses excellent electrical conductivity, which is critical in applications where the steel is used as a core material for electrical circuits. The high electrical conductivity of magnetic steel minimizes energy losses and allows for effective power transmission and distribution. In addition to these properties, magnetic steel also exhibits a high coercivity, which is the ability to resist demagnetization. This characteristic is crucial in applications where the steel is subjected to fluctuating magnetic fields or mechanical stresses, as it ensures that the magnetic properties remain stable over time. Overall, the main characteristics of magnetic steel include a strong magnetic field, high saturation magnetization, excellent electrical conductivity, and high coercivity. These properties make magnetic steel an essential material in various industries, including electrical engineering, power generation, and magnetic product manufacturing.
- Q: How does special steel contribute to the manufacturing of cutting blades for industrial machines?
- Special steel plays a crucial role in the manufacturing of cutting blades for industrial machines due to its unique properties and composition. Firstly, special steel exhibits exceptional hardness, which is essential for cutting blades to withstand the high pressure and abrasion that occurs during industrial cutting operations. This hardness ensures that the blades remain sharp for extended periods, minimizing the need for frequent replacement and reducing downtime in manufacturing processes. Moreover, special steel offers remarkable toughness, allowing cutting blades to endure heavy loads and resist chipping or breaking. This is particularly important in industrial settings where cutting blades are subjected to intense forces and must maintain their integrity to ensure efficient and reliable cutting operations. Additionally, special steel has excellent resistance to corrosion and wear, making it an ideal material for cutting blades used in harsh environments, such as those involving exposure to chemicals, extreme temperatures, or abrasive materials. This corrosion resistance prolongs the lifespan of the cutting blades, reducing maintenance costs and enhancing overall productivity. Furthermore, special steel can be customized to meet specific requirements, allowing the manufacturing of cutting blades with precise dimensions, shapes, and cutting angles. This customization ensures that the blades are tailored to the unique needs of different industrial machines and applications, optimizing cutting performance and efficiency. In summary, special steel contributes significantly to the manufacturing of cutting blades for industrial machines by providing excellent hardness, toughness, corrosion resistance, and customization options. These properties enhance the durability, reliability, and efficiency of cutting operations, ultimately leading to improved productivity and reduced costs in industrial manufacturing processes.
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Hot Rolled Bearing Steel Bar with High Quality for Construction
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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