High Quality Hot rolled Bearing Steel Bar

High Quality Hot rolled Bearing Steel Bar System 1

High Quality Hot rolled Bearing Steel Bar

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Loading Port:: China main port

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:

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

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.

steel bearing

bearing steel

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: How does the corrosion resistance of special steel compare to regular steel?: The corrosion resistance of special steel is generally superior to that of regular steel due to its unique composition and additional alloying elements that enhance its durability and protect it from corrosion.

Q: What are the international standards for special steel?: The international standards for special steel vary depending on the specific type and application of the steel. However, some widely recognized international standards organizations, such as the International Organization for Standardization (ISO) and the American Society for Testing and Materials (ASTM), provide guidelines and specifications for special steel in terms of composition, mechanical properties, and performance. These standards ensure uniformity and quality control in the production and usage of special steel across different countries and industries.

Q: What are the different pharmaceutical grades of special steel?: There are several different pharmaceutical grades of special steel, including 316L, 904L, and 2205. These grades are chosen for their high corrosion resistance, excellent mechanical properties, and their ability to withstand harsh environments in pharmaceutical manufacturing processes.

Q: How does special steel contribute to the aerospace landing gear industry?: The aerospace landing gear industry relies heavily on special steel to ensure safe and efficient aircraft landings. Special steel is essential for providing the required strength, durability, and resistance to extreme conditions. One vital aspect of landing gears is their high tensile strength, as they bear the weight of the aircraft during takeoff, landing, and taxiing. Special steel alloys, such as ultra-high strength steels, are specifically engineered to resist deformation and endure the immense forces exerted on the landing gear. These steels possess remarkable mechanical properties, enabling them to maintain their structural integrity under heavy loads. Additionally, special steel used in aerospace landing gears must exhibit exceptional fatigue resistance to withstand the repeated stress cycles experienced during each landing. Fatigue failure of landing gears can have catastrophic consequences, so the use of high-quality steel ensures an extended service life and reduces the risk of failure. Moreover, special steel alloys used in landing gears must possess outstanding corrosion resistance. Aircraft operate in diverse environments, including humid and salty conditions, which can accelerate corrosion. By utilizing corrosion-resistant steels, the landing gear components can endure these harsh conditions and maintain their performance and safety over time. Furthermore, the unique properties of special steel alloys allow for weight reduction in landing gear components. The aerospace industry constantly strives to decrease aircraft weight to enhance fuel efficiency and performance. Special steel alloys, such as high-strength low-alloy (HSLA) steels, provide the perfect balance between strength and weight, enabling the design of lighter landing gear components without compromising safety or durability. In conclusion, special steel is indispensable to the aerospace landing gear industry due to its ability to provide the necessary strength, fatigue resistance, corrosion resistance, and weight reduction capabilities required for safe and efficient aircraft landings. By utilizing special steel alloys, the industry can ensure the reliability and longevity of landing gear components, thereby contributing to the overall safety and performance of aircraft.

Q: What are the different corrosion protection methods used for special steel?: To ensure the durability and longevity of special steel, various methods are employed for corrosion protection. These methods encompass: 1. Coatings: The application of diverse coatings, including paint, epoxy, or zinc, creates a protective layer on the steel surface. Such coatings function as barriers, preventing direct contact between moisture, corrosive elements, and the steel. 2. Galvanization: By coating the steel with a layer of zinc through the process of galvanization, a sacrificial barrier is formed wherein the zinc corrodes instead of the steel. Galvanized steel is commonly utilized in outdoor applications such as fences, poles, and roofing. 3. Stainless steel: Special steel can be manufactured using stainless steel, which contains a high percentage of chromium. The presence of chromium results in the formation of a passive layer on the steel's surface, endowing it with excellent corrosion resistance. Stainless steel finds wide usage in industries like construction, food processing, and medical equipment. 4. Cathodic protection: This method involves the creation of an electrical current or the utilization of sacrificial anodes to protect the steel. By introducing a more reactive metal (sacrificial anode) or applying an electrical current, corrosion is minimized as the reactive metal corrodes instead of the steel. 5. Alloying: Modifying the steel's composition by incorporating elements like nickel, molybdenum, or copper can enhance its resistance to corrosion. These alloying elements form a protective layer on the surface, rendering the steel more resistant to rust and other forms of corrosion. 6. Passivation: Passivation is a chemical process that eliminates free iron from the steel's surface, leading to the formation of a protective oxide layer. This layer acts as a barrier against corrosion, augmenting the steel's resistance to rust and other forms of corrosion. 7. Proper maintenance: Regular inspection, cleaning, and maintenance of special steel play a vital role in preventing corrosion. The removal of dirt, debris, and other contaminants from the steel's surface aids in preserving its protective coatings and averting corrosion. It is crucial to select the appropriate corrosion protection method based on the specific application and environmental conditions to ensure the long-term performance and durability of special steel.

Q: How does special steel perform under extreme cold conditions?: Special steel performs well under extreme cold conditions due to its high strength, toughness, and resistance to brittleness. It retains its mechanical properties even at low temperatures, making it suitable for various applications in sub-zero environments.

Q: How is special steel used in the aerospace sector?: Special steel is extensively used in the aerospace sector due to its unique properties that make it suitable for various applications. One of the primary uses of special steel in the aerospace industry is for manufacturing aircraft engine components. These components, such as turbine blades, shafts, and casings, are subjected to extremely high temperatures, pressures, and stresses. Special steel, with its excellent heat resistance, high strength, and superior mechanical properties, enables these engine parts to withstand such harsh conditions, ensuring optimal performance and safety. Moreover, special steel is also utilized in the construction of aircraft structures, including wings, fuselage, landing gears, and other critical components. These structures need to be lightweight, yet strong enough to withstand the forces experienced during flight. Special steel alloys, such as stainless steel, are used to achieve this balance by providing excellent strength-to-weight ratios and corrosion resistance. Additionally, special steel finds application in aerospace fasteners, such as bolts, nuts, and screws. These fasteners must have exceptional strength and durability to ensure the structural integrity of the aircraft. Special steel alloys, like titanium alloys, are commonly used in this regard due to their lightweight nature, high strength, and resistance to corrosion. Furthermore, special steel is utilized in the production of aerospace tooling and equipment. These tools, such as molds, dies, jigs, and fixtures, need to be robust, wear-resistant, and capable of withstanding high temperatures and pressures during manufacturing processes. Special steel, with its excellent hardness, toughness, and heat resistance, makes it ideal for such applications. In summary, special steel plays a critical role in the aerospace sector by providing the necessary properties required for aircraft engine components, structures, fasteners, and tooling. Its unique characteristics of high strength, heat resistance, lightweight, and corrosion resistance make it an indispensable material in the production of reliable and high-performance aerospace systems.

Q: How does special steel perform in terms of wear resistance in abrasive environments?: Special steel performs very well in terms of wear resistance in abrasive environments. Its unique composition and treatment processes enhance its hardness and toughness, making it highly resistant to abrasion caused by particles and friction. This allows special steel to withstand harsh conditions and maintain its integrity for prolonged periods, reducing the need for frequent replacements or repairs.

Q: What are the key characteristics to consider when selecting special steel?: There are several key considerations to keep in mind when choosing special steel. Firstly, the composition of the steel is of utmost importance. The elements and their proportions within the alloy play a vital role in determining the steel's properties, such as strength, hardness, and resistance to corrosion. It is essential to carefully assess the intended use and select a composition that aligns with the desired performance. Mechanical properties are another critical aspect to consider. Tensile strength, yield strength, ductility, and toughness all determine how the steel will perform under different loads and impacts. Choosing a steel with appropriate mechanical properties for the specific application is crucial. The steel's heat treatment capabilities should also be taken into account. Special steels often undergo various heat treatment processes to enhance their properties. Factors like hardenability, tempering ability, and the ability to maintain hardness at high temperatures are essential factors to consider when selecting special steel. Corrosion resistance is a significant characteristic, particularly if the steel will be exposed to harsh environments or chemicals. Certain special steels are specifically designed to have excellent resistance to corrosion, making them suitable for applications in marine environments, chemical processing plants, or the oil and gas industries. Other characteristics to consider include machinability, weldability, and cost. Machinability refers to how easily the steel can be cut, drilled, or shaped, while weldability determines the steel's ability to be welded without compromising its properties. Cost is an important factor that should align with the project's budget constraints. To summarize, when choosing special steel, it is crucial to consider the composition, mechanical properties, heat treatment capabilities, corrosion resistance, machinability, weldability, and cost. By assessing these key characteristics in relation to the specific application, one can make an informed decision and select the most suitable special steel for the intended purpose.

Q: What are the properties of titanium alloys?: Titanium alloys have several properties that make them highly desirable in various industries. Firstly, they have excellent strength-to-weight ratio, which means they are strong and lightweight. This property makes them suitable for applications where strength and durability are required, such as aerospace engineering. Secondly, titanium alloys have high corrosion resistance, even in harsh environments. They form a protective oxide layer on their surface, which prevents them from corroding. This characteristic makes them ideal for marine and chemical processing industries. Thirdly, titanium alloys have a high melting point, allowing them to withstand extreme temperatures without losing their structural integrity. This property makes them suitable for applications in the automotive, defense, and power generation sectors. Furthermore, titanium alloys are biocompatible, meaning they are well-tolerated by the human body and are often used in medical implants and prosthetics. Overall, titanium alloys possess a unique combination of strength, lightweightness, corrosion resistance, high melting point, and biocompatibility, making them highly valuable and versatile materials in various industries.

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