Forged AISI 52100 Steel Hot Rolled Round Bar Steel
- Ref Price:
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- 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:
Spring Steel
Shape:
Steel Round Bar
Forged AISI 52100 Steel Hot Rolled Round Bar Steel
Product Details:
1. AISI 52100/EN31/GCr 15/ DIN 1.3505/JIS SUJ2 bearing steel round bar
2.Hot rolled or forged condition, annealing , black or milled surface
3.Hardness: ≤210HBS ;
4 Hot rolled technology:EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
5.Ultrasonic test standard: SPE1921-GR3, CLASS C/C
6.Production leadtime: 7~10 days
Chemical Composition:
C | Si | Mn | P | S | Cr | Mo |
0.95-1.05 | 0.15-0.35 | 0.25-0.45 | ≤0.025 | ≤0.025 | 1.4-1.65 | 0.1 max |
Advantage:
1)good comprehensive properties
2)good perfomance in cutting and processing after spheroids annealing
3)high hardness and homogrnization after quenching and tempering
4)high abrasive resistance and fatigue resistance
5)large amount of metal elements
6)Top quality
7)GCr15 is the most widely used bearing steel
Application:
Our products have been used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,chemical
industry,electronic information,achine manufacture, petrochemical, automotive,instrument and meter, Communication ,
transportation, and medical instruments, etc.
Product Show:
- Q:What are the main factors affecting the machinability of special steel?
- The machinability of special steel, which refers to its ability to be easily cut, shaped, and formed, is influenced by several key factors. 1. Alloy Composition: The chemical composition of special steel plays a crucial role in its machinability. Elements such as carbon, chromium, nickel, and molybdenum can significantly affect the material's hardness, toughness, and cutting properties. Higher carbon content, for example, can increase the hardness of steel, making it more difficult to machine. 2. Hardness: The hardness of special steel is a critical factor in determining its machinability. Harder steels require more cutting force and generate more heat during machining, which can lead to increased tool wear and reduced efficiency. Softer steels, on the other hand, are generally easier to machine but may result in lower tool life. 3. Heat Treatment: The heat treatment process used on special steel can greatly impact its machinability. Heat treatments such as annealing, tempering, or quenching can alter the steel's microstructure and mechanical properties, affecting how it responds to cutting forces. Properly heat-treated steel can improve machinability by reducing hardness and increasing toughness. 4. Grain Size: The size and distribution of grains within the steel also affect its machinability. Fine-grained steel tends to have improved machinability compared to coarse-grained steel, as smaller grains offer more uniform cutting conditions and reduce the risk of tool damage. 5. Cutting Speed and Feed Rate: Machining parameters, including cutting speed and feed rate, directly impact the machinability of special steel. Higher cutting speeds can increase tool wear and generate excessive heat, affecting the surface finish and dimensional accuracy. Similarly, incorrect feed rates can cause chip formation problems, leading to poor machinability. 6. Cutting Tool Selection: The choice of cutting tool material and geometry is critical in achieving optimal machinability. Different tool materials, such as carbide or high-speed steel, have varying wear resistance and cutting properties. The tool geometry, including rake angle and clearance angle, also affects chip formation, cutting forces, and heat generation. 7. Lubrication and Cooling: Adequate lubrication and cooling during machining are vital to enhance machinability. Lubricants or coolants help reduce friction and heat, prolong tool life, and improve chip evacuation. They also prevent workpiece deformation and improve surface finish. Considering these factors, it is essential to carefully select the appropriate special steel grade, optimize machining parameters, and use suitable cutting tools and lubrication to achieve the desired machinability and maximize productivity.
- Q:What are the different methods for electroplating special steel?
- There are several methods for electroplating special steel, including electroless nickel plating, gold plating, silver plating, and zinc plating. Each method involves immersing the steel in a solution containing the desired plating material and passing an electric current through the solution to deposit a layer of the plating material onto the steel surface. These methods can enhance the appearance, corrosion resistance, and durability of special steel products.
- Q:How can I determine the cooling water flow of square billet mold for special steel?
- The mould water quantity is calculated according to experience. The cooling water quantity of mould is calculated according to the periphery length of mould:W=2 (L+D) - QkW in mould -- cooling water quantity of mould;L - slab width, mm;D - slab thickness, mm;Qk - water flow per unit length, L/ (min = mm), for billet mold, 2.0~3.0L/ (min. Mm).
- Q:What are the main factors affecting the fracture toughness of special steel?
- The fracture toughness of special steel is influenced by several main factors. 1. Alloy composition: The specific chemical composition of the steel, including the type and amount of alloying elements, greatly affects its fracture toughness. Elements like chromium, nickel, and molybdenum can improve the toughness by promoting the formation of fine-grained microstructures or enhancing the steel's ability to resist crack propagation. 2. Heat treatment: The heat treatment process, including the temperature and duration of heating and cooling, plays a crucial role in determining the fracture toughness. Proper heat treatment can refine the microstructure and eliminate potential defects, enhancing the steel's resistance to fracture. 3. Microstructure: The microstructure of the steel, such as grain size and distribution, phase composition, and presence of inclusions, significantly affects its fracture toughness. Fine-grained structures generally exhibit higher toughness due to improved resistance to crack propagation. 4. Presence of defects: The presence of defects like cracks, voids, or inclusions in the steel can act as stress concentrators, reducing its fracture toughness. These defects can initiate cracks and propagate them more easily, leading to lower toughness. 5. Temperature: Fracture toughness is temperature-dependent, and the behavior of special steel can vary significantly at different temperatures. Some steels exhibit improved toughness at low temperatures due to the transformation of the microstructure, while others may experience reduced toughness at elevated temperatures due to the softening of the material. 6. Loading conditions: The fracture toughness of special steel can also be influenced by the loading conditions, such as the rate of loading or the presence of dynamic loading. Higher loading rates or dynamic loading can result in reduced toughness as the steel may not have sufficient time to deform and absorb energy before fracture. 7. Mechanical properties: The mechanical properties of the steel, such as strength, hardness, and ductility, can affect its fracture toughness. Higher strength and hardness can sometimes lead to lower toughness, as the material becomes more brittle. However, a balance between strength and toughness can be achieved by carefully selecting the alloy composition and heat treatment parameters. Overall, the fracture toughness of special steel is a complex interplay of various factors, including alloy composition, heat treatment, microstructure, defects, temperature, loading conditions, and mechanical properties. Optimizing these factors can help enhance the fracture toughness of special steel for specific applications.
- Q:What are the different casting methods used for special steel?
- For special steel, various casting methods are commonly utilized, depending on the specific requirements and needs of the application. These methods encompass investment casting, sand casting, continuous casting, and centrifugal casting. 1. Investment casting: To create the desired part, a wax pattern is made and coated with a ceramic shell. The wax is melted away, leaving a hollow shell that is then filled with molten steel. After solidification, the ceramic shell is broken, yielding the final part. Investment casting enables the production of accurate and intricate shapes, making it ideal for high-quality and precise special steel components. 2. Sand casting: Among the oldest and most prevalent casting techniques, sand casting involves forming a mold using a mixture of sand and a binder like clay. The mold is shaped around a pattern of the desired part and molten steel is poured into it. Upon cooling and solidification, the casting is complete. Sand casting is versatile and cost-effective, suitable for producing large and heavy special steel components. 3. Continuous casting: This method is commonly employed for manufacturing long steel products such as bars, rods, and billets. Molten steel is continuously poured into a water-cooled mold, which solidifies the outer surface. The solidified steel is then continuously withdrawn as more molten steel is poured in. Continuous casting ensures high-quality steel with a consistent cross-section, devoid of defects. 4. Centrifugal casting: In this technique, molten steel is poured into a rotating mold. The centrifugal force drives the molten steel towards the outer walls, resulting in a dense and compact casting with enhanced mechanical properties. Centrifugal casting is particularly suitable for producing cylindrical or tubular special steel components such as pipes and rings. In summary, the selection of a casting method for special steel hinges on factors like part complexity, required quality and accuracy, component size and shape, and production volume. Each method has its advantages and limitations, necessitating careful consideration to determine the most appropriate casting technique for a specific application.
- Q:How is wear-resistant steel used in mining equipment?
- Wear-resistant steel is commonly used in mining equipment to enhance their durability and longevity. It is specifically designed to withstand the harsh conditions and abrasive environments typically found in mining operations. Components such as buckets, blades, chutes, crushers, and screens are often made from wear-resistant steel to prevent excessive wear and damage caused by rocks, minerals, and other abrasive materials. This steel's high hardness and toughness properties ensure that the equipment can withstand the constant impact and abrasion, reducing maintenance needs and extending the equipment's lifespan.
- Q:What are the different galvanizing techniques used for special steel?
- There are several galvanizing techniques used for special steel, each with its own advantages and considerations. Some common techniques include 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 uses an electric current to deposit a thin layer of zinc onto the steel surface. Mechanical galvanizing, also known as centrifuge galvanizing, uses centrifugal force to apply a zinc coating. Each technique has its own specific applications and benefits, depending on factors such as the desired thickness of the coating, the complexity of the steel structure, and the intended use of the galvanized steel.
- Q:Can special steel be used in marine applications?
- Marine applications can indeed utilize special steel. This type of steel, also referred to as marine grade steel, is specifically engineered to endure the demanding conditions found in marine environments. It possesses exceptional qualities, including heightened resistance to corrosion, increased strength, and enhanced durability, which render it suitable for a wide range of marine applications. The construction of ships, offshore structures, and marine equipment commonly employs special steel. Its capacity to withstand corrosion from saltwater, chemicals, and other environmental factors makes it an excellent choice for marine applications. Additionally, special steel finds use in the production of propellers, shafts, and other components that necessitate high tensile strength and fatigue resistance. All in all, special steel proves to be a dependable and efficient material for marine applications due to its unique properties and ability to withstand the challenges presented by the marine environment.
- Q:How does special steel contribute to the power generation machinery industry?
- Special steel plays a crucial role in the power generation machinery industry by contributing to the efficiency, reliability, and durability of power generation equipment. Firstly, special steel possesses exceptional mechanical properties, such as high strength, toughness, and temperature resistance. These properties make it ideal for manufacturing key components of power generation machinery, such as turbines, generators, and boilers. The superior strength and toughness of special steel enable these components to withstand high pressures, extreme temperatures, and harsh operating conditions, ensuring the safe and efficient operation of power plants. Moreover, special steel alloys can be specifically designed to resist corrosion, erosion, and wear, which are common challenges faced by power generation equipment. Corrosion can be caused by the chemical reactions between metals and the environment, while erosion and wear result from the high-speed flow of steam, water, or gases. By utilizing corrosion-resistant and wear-resistant special steel, power generation machinery can operate for longer periods without significant degradation, reducing maintenance requirements and downtime. Another significant contribution of special steel to the power generation machinery industry is its ability to retain magnetic properties at elevated temperatures. This property is crucial for electrical generators, as it ensures optimal performance and efficiency. Special steel with excellent magnetic properties enables generators to produce electricity with minimal energy losses due to heat, resulting in higher power output and reduced energy consumption. Furthermore, the design flexibility of special steel allows for the production of customized components, tailored to the specific requirements of different power generation technologies. For instance, in nuclear power plants, special steel alloys with high resistance to radiation and neutron embrittlement are used for the construction of reactor pressure vessels and other critical components. In renewable energy systems like wind turbines, special steel with superior fatigue resistance is utilized to withstand the cyclic loading experienced by turbine blades. In summary, special steel significantly contributes to the power generation machinery industry by enhancing the efficiency, reliability, and durability of power generation equipment. Its exceptional mechanical properties, corrosion resistance, wear resistance, magnetic properties, and design flexibility make it indispensable for manufacturing components that can withstand extreme conditions and ensure the continuous and efficient generation of electricity.
- Q:How does special steel compare to other high-performance materials?
- Special steel stands out from other high-performance materials due to its exceptional strength, durability, and versatility. It exhibits higher tensile strength compared to materials like aluminum, titanium, and composites, making it suitable for robust and load-bearing applications. Moreover, special steel excels in resisting corrosion, heat, and wear, making it a perfect choice for harsh environments and high-temperature uses. One advantage of special steel is its cost-effectiveness, making it more affordable than materials like titanium. This affordability makes it the preferred choice in various industries. Additionally, the manufacturing process allows for customization, enabling the production of different grades and compositions to meet specific requirements. Special steel's excellent machinability and weldability make fabrication and assembly easy. Its versatility allows it to be utilized in various industries, including automotive, aerospace, construction, and energy. Whether it's structural components or precision tools, special steel provides a reliable and efficient solution. However, it's important to consider that the choice of material depends on the specific application and its requirements. While special steel has numerous advantages, there may be instances where other high-performance materials are more suitable, such as lightweight components or extreme temperature conditions. Therefore, conducting a comprehensive evaluation of the application's needs and characteristics is crucial in determining the most appropriate material.
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Forged AISI 52100 Steel Hot Rolled Round Bar Steel
- 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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