Hot Rolled High Quality Bearing Steel Bar
- Ref Price:
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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:
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
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.
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.
Q4: What makes stainless steel stainless?
A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
- Q: What is the life cycle of special steel products?
- The life cycle of special steel products typically involves several stages, including raw material extraction, steel production, manufacturing of specialized products, distribution, usage, and eventual disposal or recycling. This cycle starts with the extraction of iron ore and other raw materials, which are then processed and transformed into steel through various methods such as smelting and casting. Once the steel is produced, it is shaped and formed into specialized products through forging, rolling, or machining processes. These products are then distributed to various industries, where they are used for applications such as construction, automotive, aerospace, and energy. Throughout their usage, special steel products may undergo maintenance, repairs, or modifications. Eventually, when they reach the end of their life, these products can be recycled or disposed of in an environmentally responsible manner to minimize waste and resource consumption.
- Q: What are the properties of shock-resistant alloy steel?
- Shock-resistant alloy steel is a type of steel that possesses specific properties that make it highly resistant to shock and impact. These properties include high tensile strength, toughness, and hardness. It is also known for its ability to withstand sudden changes in temperature, making it suitable for applications in extreme environments. Additionally, shock-resistant alloy steel has excellent fatigue resistance, corrosion resistance, and wear resistance, making it ideal for use in industries such as aerospace, automotive, and defense.
- Q: What are the specific requirements for special steel used in the textile machinery industry?
- The specific requirements for special steel used in the textile machinery industry include high strength and durability to withstand the high-speed operations and repetitive movements of the machinery. The steel should also possess excellent wear resistance to prevent premature wear and tear. Additionally, it should have good corrosion resistance to withstand exposure to moisture and chemicals commonly found in textile processing. Lastly, the steel should exhibit good heat resistance to maintain its structural integrity even under high temperatures generated during the production process.
- Q: What is the significance of tensile strength in special steel?
- Tensile strength is of great significance in special steel because it determines the steel's ability to withstand stretching or pulling forces without breaking or deforming. This property is crucial in various industries, especially in manufacturing and construction, where high tensile strength is required for structural integrity and safety. Special steel with superior tensile strength can withstand heavy loads, resist impacts, and provide durability, making it highly sought after in applications such as building infrastructure, automotive manufacturing, and aerospace engineering.
- Q: How is special steel recycled?
- Special steel can be recycled through a process called electric arc furnace (EAF) recycling. In this method, the steel scrap is melted in an electric arc furnace, where impurities are removed and alloying elements are added to obtain the desired composition. The molten steel is then cast into new shapes or used to produce various steel products. This recycling process helps to conserve resources, reduce energy consumption, and minimize waste in the steel industry.
- Q: Can special steel be used for making renewable energy equipment?
- Making renewable energy equipment is possible using special steel. Special steel, also referred to as high-performance or alloy steel, possesses various properties that make it appropriate for use in different renewable energy applications. For instance, in wind energy, special steel finds utility in crafting wind turbine components, including rotor blades, tower structures, and drive train systems. The durability and longevity of these components are ensured by the high strength and corrosion resistance of special steel, as they are consistently exposed to harsh weather conditions and mechanical stress. In solar energy, special steel can be employed in the construction of solar panels, support structures, and tracking systems. The material's exceptional thermal conductivity and resistance to deformation make it an ideal choice for effectively capturing and converting solar energy into electricity. Moreover, special steel can be utilized in the production of hydroelectric power equipment, such as turbine blades, runners, and penstocks. These components are designed to withstand the forces and pressures associated with water power generation, and special steel's high tensile strength and resistance to erosion and cavitation make it suitable for this purpose. Furthermore, in the realm of biomass energy, special steel can be used in the fabrication of bioenergy plants and equipment. Its ability to withstand high temperatures and resist corrosion makes it suitable for handling the corrosive substances and high temperatures involved in the biomass conversion process. Overall, special steel's unique combination of strength, durability, corrosion resistance, and thermal properties makes it an excellent option for manufacturing renewable energy equipment, thereby contributing to the development and sustainability of the renewable energy industry.
- Q: What are the different test methods used to evaluate special steel?
- Special steel undergoes several test methods to evaluate its quality and performance, ensuring that it meets the required standards and specifications. Commonly employed test methods include: 1. Tensile Testing: This method assesses the steel's ability to withstand tension or pulling forces, determining its ultimate tensile strength, yield strength, and elongation. 2. Hardness Testing: Hardness tests, such as Rockwell or Brinell tests, evaluate the steel's resistance to indentation or scratching, providing insight into its strength and durability. 3. Impact Testing: This test measures the steel's capacity to absorb energy under high-stress conditions. Charpy and Izod tests are frequently used to determine the steel's toughness and resistance to sudden shocks or impacts. 4. Chemical Analysis: Determining the steel's composition, including the percentage of elements like carbon, manganese, and chromium, guarantees that it meets the necessary specifications and standards. 5. Microstructure Evaluation: Microscopic examination of the steel's microstructure reveals crucial information about its grain size, phase distribution, and any potential defects or inclusions. Optical microscopy or electron microscopy techniques are employed for this purpose. 6. Corrosion Testing: Special steel must endure harsh environments or corrosive substances. Various corrosion tests, such as salt spray tests or immersion tests, assess the steel's resistance to corrosion and degradation. 7. Non-Destructive Testing (NDT): NDT methods, including ultrasonic testing, magnetic particle testing, or eddy current testing, detect surface or internal defects without damaging the steel. These tests provide valuable information about the steel's structural integrity. 8. Fatigue Testing: Fatigue tests simulate repetitive loading conditions to evaluate the steel's resistance to cyclic stress, assessing its durability and ability to withstand long-term usage or repetitive loading. Utilizing these diverse test methods, manufacturers and quality control departments can thoroughly assess the mechanical properties, chemical composition, microstructure, and other crucial factors of special steel, ensuring it meets the necessary standards and specifications.
- Q: What is the role of chromium in special steel?
- The role of chromium in special steel is to provide enhanced corrosion resistance, increased hardness, and improved strength. It forms a protective layer on the surface of the steel, known as chromium oxide, which prevents the steel from rusting or corroding. Chromium also helps in improving the steel's ability to withstand high temperatures and maintain its structural integrity.
- 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: What are the requirements for special steel used in defense equipment manufacturing?
- The requirements for special steel used in defense equipment manufacturing typically include high strength and durability, resistance to corrosion and wear, good toughness and impact resistance, as well as the ability to withstand extreme temperatures and harsh environments. Additionally, the steel must meet stringent quality control standards and industry specifications to ensure its reliability and performance in critical defense applications.
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Hot Rolled High Quality Bearing Steel Bar
- Ref Price:
-
- Loading Port:
- China main port
- 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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