Alloy Steel 100cr6/52100/GCr15/SUJ2 Bearing Steel

Alloy Steel 100cr6/52100/GCr15/SUJ2 Bearing Steel

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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The details of our Steel

1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard

2. Produce processes: Smelt Iron -EAF smelt Billet - ESR smelt Billet -Hot rolled or forged get the steel round bar and plate

3. Heat treatment:

Normalized / Annealed / Quenched+Tempered

4. Quality assurance:

All order we can received Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.

Product information

Chemical Composition(GB)%

C	Si	Mn	Cr	Cu	S
0.95-1.05	0.15-0.35	0.25-0.45	1.4-1.65	≤0.20	≤0.020

Heat Treatment

Item	Temperature ℃	Hardness
Anneal	790-810	170-207HB
Quenching	830-860	62-66HRC
Tempering	150-180	61-66HRC

Characterstics

1.Uniform hardness,Good abrasion resistance
2.High contact fatigue resistance
3.Cutting performance in general

1.Uniform hardness,Good abrasion resistance

2.High contact fatigue resistance

3.Cutting performance in general

Applications: Used to make the load of the larger small cross-section conditioning and stress smaller large parts

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Alloy Steel 100cr6/52100/GCr15/SUJ2 Bearing Steel

Q: Does special steel require special machining techniques?: Yes, special steel often requires special machining techniques due to its unique properties and characteristics. It is typically harder, tougher, and more heat resistant compared to regular steel, making it more challenging to cut, shape, and form. Special machining techniques such as using high-speed tools, specific tool geometries, and advanced coolant systems may be necessary to achieve desired results and maintain the integrity of the special steel.

Q: What are the different methods for improving the creep resistance of special steel?: Several methods exist to enhance the creep resistance of special steel. One commonly employed technique involves alloying. By incorporating specific alloying elements like chromium, molybdenum, and vanadium, the steel's creep resistance can be significantly improved. These alloying elements create stable carbides or nitrides that serve as obstacles to dislocation movement, thereby reducing the rate of creep deformation. Heat treatment represents another effective approach. By subjecting the steel to carefully controlled heating and cooling processes, the microstructure can be refined to enhance its creep resistance. Techniques such as quenching and tempering aid in the formation of a fine-grained structure, which in turn increases the steel's strength and resistance to creep. Surface modification offers an alternative means of improving creep resistance. Nitriding and carburizing techniques can be utilized to introduce nitrogen or carbon into the steel's surface layer, creating a hardened layer that enhances creep resistance. Moreover, grain size control can be achieved through methods like grain boundary engineering or severe plastic deformation. By refining the grain structure, the movement of dislocations within the material is impeded, resulting in improved creep resistance. Lastly, the application of coatings can also bolster the creep resistance of special steel. Coatings such as ceramic or metallic coatings provide a protective layer that hampers the diffusion of impurities and slows down the creep rate. To summarize, the improvement of creep resistance in special steel can be accomplished through various techniques, including alloying, heat treatment, surface modification, grain size control, and the use of coatings. These methods aim to fortify the steel's microstructure, hinder dislocation movement, and establish protective barriers against creep deformation.

Q: How does special steel contribute to the electronics industry?: Special steel contributes to the electronics industry by providing highly durable and corrosion-resistant materials for the manufacturing of various electronic components. It is used in the production of connectors, circuit boards, magnetic cores, and other critical parts of electronic devices. Its unique properties enhance the performance, reliability, and longevity of electronic products, ensuring efficient functioning and reducing the risk of failures.

Q: How does special steel perform in hydrogen embrittlement conditions?: Special steel, known by other names like high-strength steel or alloy steel, possesses remarkable resistance to conditions that cause hydrogen embrittlement. Hydrogen embrittlement occurs when hydrogen atoms infiltrate the metallic lattice structure, causing it to become brittle and prone to fractures when subjected to stress. Given their distinct composition and microstructure, special steels are engineered to endure harsh environments, including those susceptible to hydrogen embrittlement. These steels often contain alloying elements such as nickel, chromium, and molybdenum, which enhance their ability to withstand cracking induced by hydrogen. The presence of these alloying elements in special steel facilitates the development of protective oxide layers on the steel's surface. These layers act as a barrier, preventing hydrogen atoms from diffusing into the metal matrix. Moreover, these elements can capture and bind hydrogen atoms, reducing their mobility and minimizing their negative impact on the steel's mechanical properties. Furthermore, special steels frequently undergo diverse heat treatments and processing techniques, like quenching and tempering, to further enhance their resistance to hydrogen embrittlement. These processes refine the steel's microstructure, enhancing its strength, toughness, and ductility while minimizing the risk of hydrogen-induced cracking. In general, special steel outperforms standard steels in hydrogen embrittlement conditions. Its unique composition, microstructure, and processing techniques make it highly resilient to the detrimental effects of hydrogen atoms. As a result, special steel ensures the structural integrity and reliability of components and structures operating in hydrogen-rich environments.

Q: What are the different methods of surface pickling for special steel?: Pickling special steel can be achieved through various methods. These methods comprise acid pickling, electrolytic pickling, mechanical pickling, and passivation. The most commonly employed method for pickling special steel is acid pickling. It entails immersing the steel in an acid solution, typically hydrochloric acid or sulfuric acid, to eliminate any surface impurities. By reacting with the steel's oxide layer, the acid dissolves it, leaving a pristine surface. Electrolytic pickling, on the other hand, involves passing an electric current through the steel submerged in an electrolyte solution. This creates a chemical reaction that removes surface impurities. Electrolytic pickling offers better control and enables a more consistent surface finish compared to acid pickling. Mechanical pickling utilizes abrasive materials like sandpaper or wire brushes to physically scrub the steel's surface and eliminate any scale or rust. It is often combined with acid or electrolytic pickling to achieve the desired surface finish. After pickling, special steel can undergo passivation to enhance its corrosion resistance. Passivation entails treating the steel with a chemical solution, typically nitric acid or citric acid, to form a protective oxide layer on the surface. This layer prevents further corrosion and enhances the steel's overall durability. It's worth mentioning that the specific method of surface pickling for special steel may vary depending on factors such as the type of steel, desired surface finish, and intended application. Therefore, it is essential to consult experts or adhere to the manufacturer's guidelines to ensure the appropriate pickling method is employed for special steel.

Q: What are the specific requirements for special steel used in the chemical industry?: The specific requirements for special steel used in the chemical industry include corrosion resistance, high strength, and the ability to withstand extreme temperatures and pressures. Additionally, it should have excellent weldability and formability, as well as resistance to various chemicals and acids commonly found in chemical processes.

Q: What are the main applications of special steel in the chemical industry?: Special steel is extensively used in the chemical industry for various applications. Some of the main applications include the manufacturing of storage tanks, pipelines, and equipment that require resistance to corrosion, high temperatures, and pressure. Special steel also finds use in the production of catalysts, which are vital for many chemical processes. Additionally, it is employed in the construction of reactors, heat exchangers, and other critical components that require exceptional durability and reliability in harsh chemical environments.

Q: How is special steel used in the manufacturing of tools and dies?: Special steel is used in the manufacturing of tools and dies due to its exceptional properties, such as high strength, hardness, and wear resistance. These steels can withstand extreme temperatures and pressures during the forming, cutting, and shaping processes. They also have excellent dimensional stability, ensuring precise and accurate tooling. Special steel's unique composition and heat treatment capabilities allow for the production of durable and long-lasting tools and dies, which are essential for various industries like automotive, aerospace, and manufacturing.

Q: What are the properties of mold steel?: Mold steel is known for its exceptional hardness, wear resistance, and toughness. It possesses high heat resistance and can withstand extreme temperatures, making it suitable for use in industrial applications where molds are subjected to repetitive heating and cooling cycles. Mold steel also exhibits good dimensional stability, allowing for the precise replication of complex shapes and intricate details. Additionally, it has excellent machinability and polishability, ensuring smooth surface finishes on the molded products. Overall, the properties of mold steel make it an ideal material choice for manufacturing high-quality molds used in various industries such as automotive, aerospace, and consumer goods.

Q: What are the future trends and innovations expected in special steel production?: The special steel production industry is anticipated to undergo significant changes in the future. Several trends and innovations will shape this industry, and the following key areas are expected to see advancements: 1. Advanced Manufacturing Techniques: Special steel manufacturers will likely adopt advanced manufacturing techniques, such as additive manufacturing (3D printing) and digitalization. These technologies will facilitate the production of complex geometries, minimize waste, and allow for customization of special steel products. 2. Sustainable Production: Due to growing environmental concerns, there will be a focus on sustainable production methods in the special steel industry. This will involve adopting energy-efficient processes, recycling and reusing materials, and reducing the carbon footprint of steel production. 3. High-Strength and Lightweight Alloys: The demand for lightweight materials in sectors like automotive and aerospace will drive special steel production towards developing high-strength and lightweight alloys. These alloys will enhance performance while reducing component weight, leading to improved fuel efficiency and sustainability. 4. Nanotechnology and Microstructural Engineering: Nanotechnology and microstructural engineering will enhance the properties of special steels. By manipulating materials at the nanoscale, manufacturers can improve strength, toughness, corrosion resistance, and other characteristics. 5. Enhanced Surface Treatments: Advancements in surface treatments, such as coatings, will improve the performance and longevity of special steel products. Innovative surface treatments will offer increased resistance to wear, corrosion, and heat, expanding the range of applications for special steels. 6. Digitalization and Data Analytics: Special steel production will undergo a revolution with the integration of digital technologies and data analytics. Smart factories with interconnected systems will enable real-time monitoring, predictive maintenance, and improved quality control, resulting in higher productivity and efficiency. 7. Automation and Robotics: Automation and robotics will continue to play a vital role in special steel production, optimizing productivity, reducing human errors, and improving worker safety. This will enhance overall operational efficiency. 8. Industry 4.0 Integration: The special steel industry will embrace Industry 4.0 principles, including the Internet of Things (IoT) and artificial intelligence (AI). These technologies will enable seamless connectivity, intelligent decision-making, and predictive analysis, leading to improved productivity, cost-effectiveness, and competitiveness. In conclusion, the future of special steel production will be shaped by advancements in manufacturing techniques, sustainable practices, material engineering, digitalization, and automation. These innovations will not only enhance the performance and quality of special steel products but also contribute to a more sustainable and efficient industry.

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