Bearing Steel Round Bar

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Loading Port:: Guangzhou

Payment Terms:: TT or LC

Min Order Qty:: 25MT m.t.

Supply Capability:: 80000 Tons/Year m.t./month

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Specifications of Bearing Steel Round Bar

Grade	AISI 52100, ASTM E52100, DIN 1.3505,JIS SUJ2, GCr15
Dimensions	Diameter: 30-60mm Length: 2000-13000mm or as required
Shape	Round Bar
Type	Alloy Steel Bar
Delivery Condition	Black Surface
Material	Bearing Steel
Technique	Hot Rolled

Usage and Applications of Bearing Steel Round Bar

Bearing steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.

Usage of Bearing Steel

First the famous 1C-1.5Cr steel from which the majority of bearings are made. Its structure is apparently well-understood and the focus is on purity in order to avoid inclusions which initiate fatigue during rolling contact. Then there is the M50 steel and its variants, from which bearings which serve at slightly higher temperatures in aeroengines are manufactured, based on secondary-hardened martensite.

Tapered roller bearing are generally used to support combined load mainly consisting of radial load. Their cups are separable for easy assembling ,During mounting and using, radial clearance and axial clearance can be adjusted and preloaded mounting can be made.

Packaging & Delivery of Bearing Steel Round Bar

Packaging Detail: ASTM 52100 Steel in seaworthy packing or on customer request; Packed in bundles with standard export sea-worthy package or as customer require

Delivery Detail: 45 days after confirmed

Trade terms: FOB, CFR, CIF ou as customer's required

MOQ: 25 tons or at customer's demands. If the quantity is good, the price will be better.

Processing of Bearing Steel Round Bar

The processing of Bearing Steel Round Bar is hot rolled (strictly control sulphur, phosphorus and non-metallic inclusions content and distribution)

Chemical Composition of Bearing Steel Round Bar

C	Si	Mn	Cr	Ni	Cu
			Equal or less than
0.95-1.05	0.15-0.35	0.25-0.45	Cr:1.40-1.65	0.30	0.25

All products' chemical composition and specification can be design according to customers' requirement.

Note of Bearing Steel Round Bar

1. According to national standard (GB) for our products, if not, supply according to national standards (GB) or agreement.

2. We can not only provide electric furnace +LF+VD and electros lag re-melting (ESR) steel forging materials, but also forging products of piece, bar, etc.

3. Our company is equipped with roll equipment and can provide our customers with roll billets or finished.

4. Please send us your detailed specifications when inquire. We will reply to you ASAP.

5. Certificate of quality is issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation and hardness. forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the certificate of quality.

Q: What are the properties of high-strength stainless steel?: High-strength stainless steel possesses several key properties. Firstly, it exhibits excellent corrosion resistance, making it highly resistant to rust and other forms of chemical degradation. Additionally, it has exceptional strength and durability, allowing it to withstand high levels of stress and pressure without deformation or failure. Furthermore, it retains its mechanical properties even at elevated temperatures, making it suitable for use in extreme environments. Lastly, high-strength stainless steel is often non-magnetic, providing advantages in certain applications where magnetic interference needs to be minimized.

Q: What are the different surface hardening techniques for special steel?: There are several surface hardening techniques that can be used for special steel to enhance its mechanical properties and improve its wear resistance. These techniques include: 1. Case hardening: This method involves introducing carbon or nitrogen into the surface of the steel through diffusion. The steel is heated in the presence of a carbon-rich or nitrogen-rich environment, causing the carbon or nitrogen atoms to diffuse into the surface layer. This process forms a hardened case while maintaining a tough core. 2. Nitriding: Nitriding is a surface hardening process that involves the diffusion of nitrogen into the steel. The steel is placed in a nitrogen-rich environment at elevated temperatures, forming a hardened surface layer with improved wear resistance and corrosion resistance. 3. Carburizing: Carburizing is a process that involves introducing carbon into the surface of the steel. The steel is heated in a carbon-rich environment, allowing the carbon atoms to diffuse into the surface layer. This forms a hardened case with increased hardness and wear resistance. 4. Induction hardening: Induction hardening is a localized surface hardening technique. The steel is heated using an induction coil, and then rapidly quenched. This process results in a hardened surface layer with high hardness and improved wear resistance. 5. Flame hardening: Flame hardening is another localized surface hardening method. The steel surface is heated using a high-temperature flame and then quickly quenched. This technique produces a hardened surface layer with increased hardness and wear resistance. 6. Laser hardening: Laser hardening is a precise and localized surface hardening technique. A laser beam is used to heat the desired area of the steel, followed by rapid quenching. This process forms a hardened surface layer with enhanced mechanical properties. These surface hardening techniques for special steel can significantly improve its durability, strength, and resistance to wear and corrosion, making it suitable for various industrial applications. The selection of the most appropriate technique depends on factors such as the desired hardness level, the complexity of the steel component, and the specific requirements of the application.

Q: What are the properties of free-cutting steel?: Free-cutting steel is a type of steel that is specifically designed to enhance machinability, making it easier to cut and shape with minimal effort. It possesses certain properties such as high sulfur content, which promotes the formation of manganese sulfide inclusions, improving chip formation during machining. It also typically contains elements like phosphorus, lead, or bismuth, which act as lubricants and reduce friction during cutting operations. Additionally, free-cutting steel has excellent surface finish, good dimensional accuracy, and high production efficiency, making it widely used in industries where machining speed and efficiency are crucial.

Q: Can special steel be used for making marine components?: Yes, special steel can be used for making marine components. Special steel is often chosen for its corrosion resistance, strength, and durability, which are crucial properties required for components used in marine environments. These components need to withstand exposure to seawater, harsh weather conditions, and extreme pressures. Special steel alloys such as stainless steel or duplex steel are commonly used for marine applications due to their excellent resistance to corrosion and ability to maintain structural integrity in marine environments.

Q: Can special steel be used in the telecommunications equipment manufacturing industry?: Yes, special steel can be used in the telecommunications equipment manufacturing industry. Special steel, such as stainless steel or alloy steel, offers various advantages such as high strength, corrosion resistance, and heat resistance. These properties make it suitable for manufacturing various components used in telecommunications equipment, including antennas, towers, cable connectors, and enclosures. Additionally, the use of special steel can enhance the durability and performance of the equipment in challenging environments, such as extreme temperatures or exposure to harsh weather conditions.

Q: What are the different manufacturing processes used for special steel?: There are several manufacturing processes used for special steel, including casting, forging, rolling, and heat treatment. Casting involves melting and pouring steel into molds to create complex shapes. Forging involves shaping steel by applying pressure and heat to deform it into desired forms. Rolling is a process where steel is passed through a series of rollers to reduce its thickness and shape it into sheets or bars. Lastly, heat treatment is used to alter the properties of steel by subjecting it to controlled heating and cooling processes.

Q: How does special steel perform in high-temperature strength?: Special steel, also known as high-temperature steel, is specifically designed to excel in high-temperature strength applications. Unlike standard steels, which may lose their strength and structural integrity at elevated temperatures, special steel retains its mechanical properties even under extreme heat conditions. One of the key reasons behind the exceptional high-temperature strength of special steel is its unique composition. It is typically alloyed with elements such as chromium, nickel, and molybdenum, which significantly enhance its resistance to the effects of thermal expansion, oxidation, and creep. These alloying elements form stable oxides on the surface of the steel, acting as a protective layer that prevents further oxidation and corrosion, thereby maintaining the material's strength and integrity. Moreover, the microstructure of special steel plays a crucial role in its high-temperature performance. Through advanced manufacturing techniques, special steel is engineered to have a fine-grained structure, which improves its resistance to deformation and improves its creep strength. The fine grains also contribute to its ability to retain its mechanical properties at elevated temperatures for prolonged periods. Additionally, special steel undergoes rigorous heat treatment processes, such as quenching and tempering, which further enhance its high-temperature strength. These processes help to refine the microstructure and optimize the mechanical properties of the steel, including its hardness, toughness, and resistance to thermal fatigue. In conclusion, special steel is specifically designed and engineered to excel in high-temperature strength applications. Its unique composition, microstructure, and heat treatment processes contribute to its exceptional resistance to thermal expansion, oxidation, and creep, ensuring that it retains its mechanical properties and structural integrity even under extreme heat conditions.

Q: What is the impact of high temperature on the mechanical properties of special steel?: High temperature has a significant impact on the mechanical properties of special steel. When exposed to high temperatures, special steel may undergo a phenomenon called thermal softening, where its mechanical strength decreases. This is primarily due to the reduction in the material's yield strength and hardness at elevated temperatures. One of the key effects of high temperature on special steel is the reduction in its ability to resist deformation. At elevated temperatures, the steel becomes more ductile, meaning it is more prone to elongation and plastic deformation. This increase in ductility can result in a decrease in the material's ability to maintain its shape and integrity under load, which can lead to distortion, warping, or even failure of the component. Furthermore, high temperatures can also cause changes in the microstructure of special steel. For instance, prolonged exposure to elevated temperatures can lead to the formation and growth of grain boundaries, which can weaken the material's mechanical properties. Additionally, high temperature can promote the diffusion of impurities or alloying elements within the steel, altering its chemical composition and potentially affecting its mechanical behavior. Another consequence of high temperature on special steel is the reduction in its resistance to corrosion and oxidation. At elevated temperatures, the steel is more susceptible to oxidation, which can result in the formation of scales or even complete material degradation. This can compromise the steel's mechanical properties, such as its strength and toughness. In conclusion, high temperature has a detrimental impact on the mechanical properties of special steel. It reduces the material's strength, increases its ductility, alters its microstructure, and decreases its resistance to corrosion and oxidation. Therefore, it is crucial to consider the effects of high temperature when designing and selecting special steel for applications that involve exposure to elevated temperatures.

Q: What are the different surface coatings available for special steel?: There are several different surface coatings available for special steel, including galvanizing, electroplating, powder coating, and thermal spraying. These coatings help to enhance the steel's corrosion resistance, durability, and aesthetic appearance.

Q: What are the different methods of surface electroplating for special steel?: There are several methods of surface electroplating for special steel, including electroless plating, electroplating by immersion, barrel plating, and rack plating. Electroless plating is a chemical process that uses a reducing agent to deposit a layer of metal onto the steel surface. Electroplating by immersion involves immersing the steel in an electrolyte bath and applying an electric current to deposit a metal coating. Barrel plating is a method where the steel parts are placed in a rotating barrel along with the plating solution, creating a tumbling action that ensures an even coating. Rack plating involves suspending the steel parts on a rack and immersing them in the plating bath. Each method has its own advantages and is chosen based on the specific requirements and characteristics of the special steel being plated.

FORWARD is specialized in special steel, die steel, including: plastic die steel, hot work steel, cold work steel, alloy structural steel, bearing steel, high speed tool steel, carbon steel, stainless steel and so on with different specification. We sincerely provide high quality and favourite price. Our company keeps the principle of “reputation is fisrt, customer is our god”. Honest, pragmatic spirit are directing our production and sale, in order to serve our valued customer with convenient, top speed and best from here.

1. Manufacturer Overview

Location	Guangdong, China
Year Established	2005
Annual Output Value	Above US$ 100 Million
Main Markets	korea, India, Malaysia, Brazil, Germany, Belgium, Middle East
Company Certifications

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Guangzhou
Export Percentage	50%-80%
No.of Employees in Trade Department	21-100 People
Language Spoken:	English; Chinese
b) Factory Information
Factory Size:	23,000 square meters
No. of Production Lines	1
Contract Manufacturing	OEM servise offered
Product Price Range	high; average