Hot Rolled Alloy Bearing Steel Round Bars for Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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OKorder Financial Service
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Product Description:
High Quality Bearing steel is used for manufacturing ball, roller bearing steel and rings. Bearing in work is under great pressure and friction, so have high demands bearing steel and hardness and resistance, and high elastic limit.
Bearing steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.
For example, bearing ring, steel rolling mill, machinery, 100Cr6 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile, bags electronically.
Product Applications:
High Quality Hot Rolled Alloy Bearing Steel Round Bars are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
1. Steel round bar products is used in construction and a large number of architectural and engineering structures. And it can be used in production of handrail, windows, machinery, telecom and curtain wall.
2. It can be used in the fields like metal mines, cement plants, water coal slurry, power stations and chemical industry.
3. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.
4. Recommended watchcase factory, screw factory and other cold stamping products industry use.
Product Advantages:
OKorder's High Quality Hot Rolled Alloy Bearing Steel Round Bars are durable, strong, and resist corrosion.
1. The steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.
2. As the carbon percentage content rises, steel has the ability to become harder and stronger through heat treating; however it becomes less ductile.
3. Regardless of the heat treatment, higher carbon content reduces weld ability. In carbon steels, the higher carbon content lowers the melting point.
4. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.
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
Specifications of High Quality Hot Rolled Alloy Bearing Steel Round Bars
1. Grade: Q235, A36, SS400, S235JR
2. Feature: Unbreakable, grinding resistant and high impact value
3. Diameter: 8mm-150mm
4. Performance: Mainly for civil construction
5. Characteristics: Even hardness, no deformation, no breaking, no mal-roundness
6. Technique: Hot rolled
7. Mass: Mass (kg/m) = Diameter (mm) × Diameter (mm) × 0.00617
Packaging & Delivery of Mild Hot Rolled Steel Round Bars for Bults and Nults
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Production Flow of High Quality Hot Rolled Alloy Bearing Steel Round Bars
Material prepare (billet) — heat up — rough rolling — precision rolling — cooling — packing — storage and transportation
FAQ:
Q1: The products are invoicing on theoritical weight or on actual weight?
A1: We can do it in both manners, according to the customers' request.
Q2: What is the normal tolerance of High Quality Hot Rolled Alloy Bearing Steel Round Bars?
A2: Normally 3%-5%, but we can also produce the goods according to the customers' requests.
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: What are the different methods of improving the creep resistance of special steel?
- There are several methods of improving the creep resistance of special steel, which are designed to enhance its ability to withstand long-term exposure to high temperatures and constant stress. Some of the methods commonly employed include: 1. Alloying: Special steel can be alloyed with specific elements to enhance its creep resistance. The addition of elements such as chromium, molybdenum, tungsten, and vanadium can significantly improve the material's ability to resist creep deformation. These alloying elements form strong carbides or intermetallic compounds, which impede the movement of dislocations and enhance the material's strength and resistance to creep. 2. Heat treatment: Precise heat treatment techniques can be employed to improve the creep resistance of special steel. Processes such as quenching and tempering, annealing, and normalizing can alter the steel's microstructure, leading to the formation of fine-grained and homogeneous structures that offer improved creep resistance. Heat treatment also helps in relieving residual stresses and improving the material's overall strength. 3. Grain refinement: Special steel can be subjected to processes that refine its grain structure, thereby enhancing its creep resistance. Techniques such as grain size reduction through controlled rolling, recrystallization, and severe plastic deformation can lead to the formation of smaller and more uniform grains. This refined microstructure hinders dislocation movement and improves the material's resistance to creep deformation. 4. Precipitation hardening: Special steel can be subjected to precipitation hardening methods, where the material is heated and then rapidly cooled to induce the formation of fine precipitates. These precipitates act as barriers to dislocation movement, improving the material's strength and creep resistance. 5. Surface modification: Special steel can be treated with surface modification techniques to increase its creep resistance. Methods such as shot peening, laser surface melting, and surface coatings can improve the surface integrity, reduce surface roughness, and introduce compressive residual stresses, all of which contribute to enhanced creep resistance. It is important to note that the selection and combination of these methods depend on the specific requirements of the application and the type of special steel being used. The aim is to optimize the material's microstructure, chemical composition, and surface characteristics to achieve the desired creep resistance and ensure long-term performance at elevated temperatures.
- Q: What are the challenges in machining special steel alloys?
- Machining special steel alloys presents several challenges. These alloys are typically harder and more brittle than regular steel, making them more difficult to cut and shape. They also tend to generate higher heat during the machining process, increasing the risk of tool wear and thermal damage. Special steel alloys may also have complex microstructures and chemical compositions, which can result in uneven material removal and unpredictable machining behavior. Additionally, these alloys often have lower machinability ratings, requiring specialized cutting tools and techniques to achieve desired results. Overall, the challenges in machining special steel alloys lie in their hardness, heat generation, complex microstructures, and lower machinability, necessitating expertise and careful consideration during the machining process.
- Q: What are the different heat treatment techniques used for special steel?
- There are several heat treatment techniques used for special steel, including annealing, normalizing, quenching, tempering, and case hardening. Each technique serves a specific purpose in altering the properties of the steel, such as improving hardness, strength, toughness, or ductility. Annealing involves heating the steel to a specific temperature and then slowly cooling it to relieve internal stresses and increase ductility. Normalizing is similar to annealing but involves air cooling instead of slow cooling. Quenching involves rapid cooling of the steel to increase hardness, while tempering is a subsequent heating process to reduce brittleness and enhance toughness. Case hardening involves heating the steel in the presence of a carbon-rich atmosphere to increase surface hardness while maintaining a tough core.
- Q: Can special steel be used in the defense equipment manufacturing industry?
- Yes, special steel can be used in the defense equipment manufacturing industry. Special steel is often chosen for its exceptional strength, durability, and resistance to wear and corrosion. These properties are crucial for manufacturing defense equipment that can withstand harsh environments and extreme conditions. Additionally, special steel can be tailored to specific requirements, allowing for the production of specialized defense equipment with enhanced performance and reliability.
- Q: What are the different surface cleaning methods for special steel?
- Maintaining the quality and appearance of special steel requires the use of various surface cleaning methods. Here are some options: 1. To remove dirt, rust, or other contaminants from the steel surface, mechanical cleaning utilizes tools like wire brushes, sandpaper, or abrasive pads. This method effectively eliminates loose particles and light stains. However, it may not be suitable for stubborn dirt or deep stains. 2. Chemical cleaning is a commonly employed technique for special steel surfaces. It involves applying specific chemical solutions to dissolve and eliminate contaminants. The choice of chemicals depends on the type of dirt or stain. Acid-based cleaners work well for rust removal, while alkaline cleaners are effective against grease or oil stains. 3. Electrochemical cleaning employs an electrical current to eradicate contaminants from the steel surface. This method requires submerging the steel in an electrolyte solution and applying a direct current. As a result, the contaminants dissolve and separate from the surface. It is crucial to monitor this method closely to avoid any damage to the steel. 4. High-pressure water cleaning, also known as water blasting, removes dirt, paint, or other contaminants from the steel surface by using pressurized water. This method is particularly effective for heavy stains or coatings and is commonly used in industrial cleaning processes. 5. Steam cleaning is a gentle technique that uses high-temperature steam to loosen and eliminate dirt, grease, or other contaminants from the steel surface. It is a non-abrasive method that can effectively clean delicate or sensitive surfaces without causing any damage. It is important to consider the specific type of steel, the nature of the contaminants, and the desired level of cleaning when selecting the appropriate surface cleaning method. Consulting experts or following manufacturer guidelines is recommended to ensure the best cleaning method for a particular type of special steel.
- Q: Can special steel be used in the rubber manufacturing industry?
- Yes, special steel can be used in the rubber manufacturing industry. Special steel is often used to create molds, tools, and equipment that are used in the production of rubber products. It is valued for its strength, durability, and resistance to wear and tear, making it suitable for various applications in the rubber manufacturing process.
- Q: How does special steel contribute to improving product resistance to environmental factors?
- Special steel contributes to improving product resistance to environmental factors through its unique properties. Special steels are engineered to have superior strength, corrosion resistance, and durability, allowing them to withstand harsh environmental conditions such as extreme temperatures, moisture, and chemical exposure. These enhanced properties enable products made from special steel to have a longer lifespan, reduced maintenance requirements, and increased performance in challenging environments. Ultimately, special steel helps to enhance product reliability and longevity, making it an essential material for improving resistance to environmental factors.
- Q: What are the main characteristics of tool steel?
- Tool steel is a type of steel that is specifically designed for the production of tools, such as drills, dies, and cutting instruments. It possesses several key characteristics that make it suitable for these applications. Firstly, tool steel is known for its exceptional hardness. It has a high carbon content, typically ranging from 0.5% to 1.5%, which contributes to its hardness. This hardness allows tool steel to resist wear and abrasion, making it ideal for cutting and shaping materials. Another important characteristic of tool steel is its high toughness. Tool steel is able to withstand high impact and shock loads without fracturing or breaking. This toughness is crucial in tooling applications where tools are subjected to heavy loads and forces. Tool steel also exhibits excellent heat resistance. It has a high melting point, allowing it to maintain its strength and hardness even at elevated temperatures. This heat resistance is crucial in applications where tools are exposed to high temperatures during cutting or shaping processes. In addition to these characteristics, tool steel possesses good dimensional stability and machinability. It has low distortion and shrinkage during heat treatment, ensuring that the tool maintains its shape and size. Tool steel is also easily machinable, allowing for the production of intricate shapes and designs. Overall, the main characteristics of tool steel include high hardness, toughness, heat resistance, dimensional stability, and machinability. These properties make tool steel an ideal material for the production of tools that require high strength, durability, and performance.
- Q: How does special steel perform in cryogenic corrosion resistance?
- Special steels possess exceptional capabilities in terms of resisting corrosion in cryogenic environments. Unlike regular steels, which tend to become brittle and prone to corrosion when exposed to extremely low temperatures, special steels are specifically engineered to endure such conditions while maintaining their mechanical properties and corrosion resistance. The remarkable performance of special steels in cryogenic settings can be primarily attributed to their composition and microstructure. These steels are typically infused with elements like nickel, molybdenum, and nitrogen, which significantly enhance their ability to withstand corrosion at low temperatures. Additionally, the microstructure of special steels is meticulously controlled, resulting in a fine grain size and a uniform distribution of alloying elements. This microstructure contributes to the steel's capacity to resist corrosion and retain its mechanical strength even in cryogenic temperatures. Furthermore, special steels undergo rigorous testing procedures to ensure their suitability for cryogenic applications. They are subjected to low-temperature impact tests, which evaluate their toughness and resistance to brittle fracture. These tests verify that the steel can endure the stresses and strains imposed by cryogenic conditions without experiencing failure. In conclusion, special steels exhibit exceptional resistance to cryogenic corrosion due to their distinct composition, microstructure, and comprehensive testing. They are the preferred choice for applications that demand reliable performance in extremely low temperatures, such as in the aerospace, energy, and scientific research industries.
- Q: How is special steel used in the automotive industry?
- Special steel is used in the automotive industry for various applications such as manufacturing engine components, transmission parts, suspension systems, and safety features. It provides high strength, durability, and resistance to wear and corrosion, enabling vehicles to perform better and ensuring safety standards are met.
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Hot Rolled Alloy Bearing Steel Round Bars for Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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