Spring And Bearing Steel Of Round Bar Shape
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 5000 m.t./month
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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
These steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able 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 marten site.
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
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
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 quality control measures for steel round bars?
- Quality control measures for steel round bars typically involve a series of inspections and tests to ensure that the bars meet the required specifications and standards. These measures are crucial to ensure the structural integrity and reliability of the steel bars. Some common quality control measures for steel round bars include: 1. Visual Inspection: This involves a visual examination of the bars to detect any surface defects such as cracks, pits, or rust. It ensures that the bars have a smooth surface finish and are free from any visible imperfections. 2. Dimensional Inspection: This involves measuring the diameter, length, and straightness of the steel bars to ensure they meet the required tolerances. Any deviations from the specified dimensions can affect the performance and fit of the bars in various applications. 3. Chemical Composition Analysis: Steel round bars undergo chemical composition analysis to verify the percentage of various elements present in the steel. This analysis helps ensure that the bars have the correct alloying elements in the right proportions, which directly impacts their mechanical properties and performance. 4. Mechanical Testing: Various mechanical tests are performed on steel round bars to assess their strength, hardness, and other mechanical properties. These tests can include tensile testing, impact testing, and hardness testing. These tests help determine if the bars meet the required strength and durability standards. 5. Ultrasonic Testing: Ultrasonic testing is often used to detect internal defects such as voids, inclusions, or cracks in steel round bars. This non-destructive testing technique uses high-frequency sound waves to identify any flaws that may compromise the structural integrity of the bars. 6. Surface Treatment Inspection: If the steel round bars undergo any surface treatments such as heat treatment or coating, an inspection is conducted to ensure that the treatments are properly applied and meet the required specifications. 7. Certification and Documentation: Quality control measures also include proper documentation and certification of the steel round bars. This ensures traceability and provides evidence that the bars have undergone the required inspections and tests, giving customers confidence in the product's quality. Overall, these quality control measures for steel round bars help ensure that the bars are of high quality, meet the required specifications, and are suitable for their intended applications.
- Q: What is the difference between a bright and a cold finished steel round bar?
- A bright steel round bar and a cold finished steel round bar are two distinct types of steel bars that differ in their manufacturing processes and resulting characteristics. A bright steel round bar, also known as a turned or polished bar, undergoes a process called turning or polishing. During this process, the rough steel bar is rotated on a lathe machine and a cutting tool is applied to remove the outer layer of the bar, resulting in a smooth and shiny surface. This process not only enhances the appearance of the bar but also improves its dimensional accuracy and surface finish. Bright steel round bars are commonly used in applications where aesthetics and a high-quality surface finish are important, such as architectural components, decorative items, and certain automotive parts. On the other hand, a cold finished steel round bar undergoes a different manufacturing process called cold drawing or cold rolling. In this process, the hot-rolled steel bar is passed through a series of dies at room temperature, reducing its diameter and increasing its length. This cold working process gives the steel bar improved mechanical properties, such as increased tensile strength, improved yield strength, and enhanced dimensional accuracy. Cold finished steel round bars are often used in applications that require high strength and precision, such as shafts, gears, bolts, and tools. In summary, the main difference between a bright steel round bar and a cold finished steel round bar lies in their manufacturing processes and resulting characteristics. While a bright steel round bar is turned or polished to achieve a smooth and shiny surface, a cold finished steel round bar undergoes cold drawing or rolling to enhance its mechanical properties and dimensional accuracy. The choice between these two types of steel bars depends on the specific requirements of the application, such as the need for aesthetics, surface finish, strength, or precision.
- Q: Can steel round bars be plated with other metals?
- Yes, steel round bars can be plated with other metals through a process called electroplating.
- Q: What are the different surface defects that can occur in steel round bars?
- There are several different surface defects that can occur in steel round bars. These defects can be classified into various categories based on their appearance and severity. Some of the common surface defects include: 1. Scale: Scale is a thin layer of oxide that forms on the surface of steel during the manufacturing process. It appears as a rough, flaky coating and can be easily removed by mechanical means. 2. Pits: Pits are small depressions or craters that can occur on the surface of the steel. They are usually caused by corrosion or mechanical damage. Pits can weaken the structural integrity of the steel and may require repair or replacement. 3. Scratches: Scratches are shallow grooves or cuts on the surface of the steel. They can be caused by handling, transportation, or machining processes. While minor scratches may not affect the performance of the steel, deep scratches can lead to stress concentration and potential failure. 4. Roll marks: Roll marks are raised or depressed lines or patterns that are left on the surface of the steel during the rolling process. These marks are typically caused by the uneven pressure distribution between the rolls and can affect the dimensional accuracy and surface quality of the steel. 5. Laminations: Laminations are thin layers or bands of non-metallic inclusions that can occur parallel to the surface of the steel. They are usually caused by inadequate refining or improper casting techniques. Laminations can decrease the strength and toughness of the steel and may require further processing or rejection. 6. Decarburization: Decarburization refers to the loss of carbon content on the surface of the steel. It can occur during heating, annealing, or hot working processes. Decarburization can reduce the hardness and strength of the steel and may lead to premature failure under load. 7. Surface cracks: Surface cracks are visible cracks that occur on the surface of the steel. They can be caused by excessive cooling rates, improper heat treatment, or mechanical stress. Surface cracks can compromise the structural integrity of the steel and may require repairs or rejection. These are just a few examples of the different surface defects that can occur in steel round bars. It is essential to inspect and address these defects to ensure the quality and performance of the steel in various applications.
- Q: What are the common alloying elements used in steel round bars?
- Steel round bars commonly contain alloying elements such as carbon, manganese, silicon, sulfur, and phosphorus. Carbon, the most significant alloying element, is responsible for the steel's strength and hardness. It enhances overall performance, increasing durability and resistance to wear and tear. Manganese, another crucial element, improves hardenability and strength while reducing brittleness and increasing toughness. Silicon is added to enhance the steel's resistance to oxidation, while small amounts of sulfur and phosphorus improve machinability. These alloying elements collaborate to produce steel round bars with specific properties suitable for various applications in industries such as construction, automotive, and manufacturing.
- Q: Can steel round bars be used for making steering components?
- Yes, steel round bars can be used for making steering components. Steel round bars are known for their high strength and durability, making them suitable for applications that require a strong and reliable material. Steering components, such as tie rods or steering shafts, often require a sturdy material to withstand the forces and stresses associated with steering mechanisms. Steel round bars can provide the necessary strength and stability needed for these components, making them a suitable choice for steering system applications.
- Q: Can steel round bars be used for making shock absorber components?
- Yes, steel round bars can be used for making shock absorber components. Steel is a common material used in the manufacturing of shock absorbers due to its strength, durability, and resistance to wear and tear. Steel round bars can be machined or forged into various components of a shock absorber, such as piston rods, mounting brackets, or tube bodies. The use of steel ensures that these components can withstand the high pressures and forces associated with shock absorption, providing stability and smooth operation for the vehicle.
- Q: What is the difference between a rough turned and a centerless ground steel round bar?
- A rough turned steel round bar is a type of steel bar that has been partially machined to remove excess material and create a rough surface finish. It undergoes a turning process on a lathe, which removes the outer layer of the steel bar to achieve a specific diameter and shape. On the other hand, a centerless ground steel round bar is a type of steel bar that has undergone a precise grinding process to achieve a smooth and polished finish. This process involves feeding the steel bar through a centerless grinder, which removes any imperfections or irregularities on the outer surface, resulting in a consistently smooth and uniform diameter. In summary, the main difference between a rough turned and a centerless ground steel round bar lies in the level of surface finish and precision. Rough turned bars have a rougher surface finish and are not as precisely sized as centerless ground bars, which have a smooth, polished finish and are manufactured with tighter tolerances.
- Q: What are the different machining processes used for steel round bars?
- Some of the different machining processes used for steel round bars include turning, milling, drilling, and grinding. Turning involves rotating the bar against a cutting tool to remove material and create a desired shape. Milling uses a rotating cutter to remove material from the surface of the bar. Drilling involves creating holes in the bar using a rotating drill bit. Grinding uses an abrasive wheel to remove material and achieve a smooth surface finish on the bar. These processes are commonly used in metalworking industries to shape and refine steel round bars for various applications.
- Q: How do steel round bars compare to brass round bars?
- Steel round bars and brass round bars have several key differences that make them suitable for different applications. Firstly, steel round bars are much stronger and more durable compared to brass round bars. Steel has a higher tensile strength, making it ideal for applications that require high strength and resistance to heavy loads. It is commonly used in construction, manufacturing, and automotive industries where strength and durability are crucial. On the other hand, brass round bars are known for their excellent corrosion resistance and electrical conductivity. Brass is an alloy of copper and zinc, which gives it a unique combination of properties. It is often used in applications that require good electrical conductivity, such as electrical connectors, plumbing fittings, and musical instruments. Brass also has an attractive golden appearance, making it a popular choice for decorative purposes. In terms of cost, steel round bars are generally more affordable compared to brass round bars. Steel is widely available and produced in large quantities, resulting in a lower cost per unit. Brass, being an alloy of copper, which is a relatively expensive metal, is generally more expensive. Another important factor to consider is machinability. Steel round bars are generally easier to machine and work with compared to brass round bars. Steel has good cutting and drilling properties, making it easier to fabricate into various shapes and sizes. Brass, on the other hand, tends to have a higher machinability rating, meaning it is easier to cut and shape compared to other metals. In summary, steel round bars are stronger, more durable, and generally more affordable than brass round bars. They are suitable for applications that require high strength and resistance to heavy loads. Brass round bars, on the other hand, offer excellent corrosion resistance, electrical conductivity, and an attractive appearance. They are commonly used in applications that require good electrical conductivity and for decorative purposes. The choice between steel and brass round bars ultimately depends on the specific requirements of the application.
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Spring And Bearing Steel Of Round Bar Shape
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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