• Round Bar For Bearing G20 System 1
  • Round Bar For Bearing G20 System 2
  • Round Bar For Bearing G20 System 3
Round Bar For Bearing G20

Round Bar For Bearing G20

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Product Description:

OKorder is offering high quality Hot Rolled Steel I-Beams 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:

Hot Rolled Steel I-Beams are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.

 

Product Advantages:

OKorder's Steel I-Beams 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:

Manufacture: Hot rolled

Grade: Q195 – 235

Certificates: ISO, SGS, BV, CIQ

Length: 6m – 12m, as per customer request

Specifications of Special Steel:


Grade

bearing steel EN-31

Dimensions

Diameter: 20-280mm

Length: 2000-5800mm

Shape

Round Bar

Type

High chromium bearing steel

HBS

<220

Standard

AISI

Technique

Hot Rolled


 

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.

Q5: Can stainless steel rust?

A5: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.

 

Images:

Q:What is the maximum aluminum content allowed for steel round bars?
The maximum aluminum content allowed for steel round bars typically varies depending on the specific industry standards and specifications. However, a common maximum aluminum content limit for steel round bars is around 0.20-0.35%.
Q:Can steel round bars be used for making jewelry?
While gold and silver are commonly used for jewelry making, steel round bars can also be utilized in this craft. Steel round bars are particularly favored in industrial or modern jewelry designs due to their sleek and contemporary appearance. Moreover, steel possesses remarkable durability, resistance to tarnish, and affordability compared to other metals, making it an attractive option for those seeking a more economical choice. Nonetheless, it is worth noting that steel may not be suitable for delicate or intricate jewelry designs as it tends to be heavier than alternative metals. Furthermore, individuals with metal allergies should exercise caution as steel can potentially cause skin reactions. In such cases, it is advisable to opt for hypoallergenic or coated steel to ensure safety. Ultimately, the decision to incorporate steel round bars into jewelry making is contingent upon the desired style, durability, and budget preferences of the creator or purchaser.
Q:What are the different types of surface defects in steel round bars?
There are several different types of surface defects that can occur in steel round bars. These defects can vary in severity and can impact the quality and performance of the bars. Some of the common types of surface defects in steel round bars include: 1. Scale: Scale is a type of oxide layer that forms on the surface of steel during the manufacturing process. It can appear as a rough, flaky layer on the surface of the bar. Scale can negatively affect the appearance and surface finish of the bar. 2. Pits: Pits are small depressions or cavities that can occur on the surface of the bar. They can be caused by various factors such as corrosion, mechanical damage, or manufacturing defects. Pits can weaken the structural integrity of the bar and make it more susceptible to failure. 3. Scratches: Scratches are shallow grooves or marks on the surface of the bar. They can be caused by handling, transportation, or contact with other objects during the manufacturing process. While scratches may not significantly impact the strength of the bar, they can affect its appearance and surface finish. 4. Cracks: Cracks are linear fractures that can occur on the surface of the bar. They can be caused by excessive stress, thermal cycling, or manufacturing defects. Cracks can be extremely detrimental to the strength and integrity of the bar and can lead to catastrophic failure if left untreated. 5. Decarburization: Decarburization refers to the loss of carbon from the surface layer of the steel bar. It can occur during the heating or cooling processes and can result in a softer and weaker surface layer. Decarburization can reduce the overall strength and durability of the bar. 6. Lamination: Lamination refers to the separation or delamination of layers within the steel bar. It can occur during the manufacturing process due to improper bonding or rolling conditions. Lamination can weaken the structural integrity of the bar and make it more prone to failure. 7. Inclusions: Inclusions are non-metallic particles or impurities that can be present on the surface of the bar. They can be caused by contaminants in the raw materials or improper manufacturing processes. Inclusions can negatively impact the mechanical properties and performance of the bar. It is important to identify and address these surface defects in steel round bars to ensure their quality and performance. Various inspection and testing methods can be employed to detect and mitigate these defects, such as visual inspection, ultrasonic testing, magnetic particle inspection, and dye penetrant inspection.
Q:What is the yield strength of a steel round bar?
The yield strength of a steel round bar refers to the amount of stress or force that the bar can withstand before it starts to deform or permanently change shape. This is an important property to consider when designing or selecting materials for structural applications. The yield strength of a steel round bar can vary depending on the specific grade or type of steel being used. Common grades of steel such as A36, 1018, and 4140 typically have yield strengths ranging from 36,000 psi (pounds per square inch) to 100,000 psi. However, it is important to note that the yield strength can also be influenced by factors such as heat treatment, manufacturing processes, and the presence of any alloying elements in the steel composition. Therefore, it is always recommended to consult the specific material specifications or conduct proper testing to determine the exact yield strength of a steel round bar in a given application.
Q:What is round steel?
Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed as millimeters in diameter. For example, "50" means a round steel with a diameter of 50 millimetersRound bar is divided into three kinds of hot rolling, forging and cold drawing. The specification of hot rolled round bar is 5.5-250 millimeters. Among them, 5.5-25 rounds of small round bars are mostly supplied by straight strips. They are commonly used as reinforcing bars, bolts and various mechanical parts;
Q:What is the difference between a centerless ground and a cold finished steel round bar?
A centerless ground steel round bar and a cold finished steel round bar are both types of steel bars that have undergone different manufacturing processes, resulting in distinct characteristics and properties. A centerless ground steel round bar is produced by feeding a hot rolled or cold drawn steel bar through a grinding machine. This process removes any surface imperfections or irregularities, resulting in a smooth and uniform surface finish. The centerless grinding process also ensures tight dimensional tolerances, making the bar suitable for applications that require precise measurements. Additionally, centerless ground bars have improved straightness and roundness, which enhances their overall quality and suitability for various machining operations. On the other hand, a cold finished steel round bar is produced by cold drawing or cold rolling a hot rolled steel bar. This process involves reducing the diameter of the bar while maintaining its length, resulting in a more precise and consistent size. Cold finishing also improves the surface finish of the bar, making it smoother and more uniform. Cold finished bars have tighter dimensional tolerances and improved mechanical properties, including higher strength and hardness compared to hot rolled bars. In summary, the main difference between a centerless ground and a cold finished steel round bar lies in the manufacturing processes used and their resulting characteristics. Centerless ground bars have a smooth surface finish, tight dimensional tolerances, improved straightness, and roundness, making them suitable for precise machining applications. Cold finished bars, on the other hand, have a more precise size, improved surface finish, tighter dimensional tolerances, and enhanced mechanical properties, making them suitable for various applications requiring higher strength and hardness.
Q:What is the difference between a seamless and a welded steel round bar?
The main difference between a seamless and a welded steel round bar lies in their manufacturing process and the resulting structural integrity. A seamless steel round bar is produced by piercing a solid billet of steel and then rolling it into a round shape. This process ensures that there are no seams or welds in the bar, resulting in a smooth and continuous surface throughout its length. The absence of a weld eliminates the potential weaknesses and vulnerabilities associated with welded joints. Seamless steel bars are typically more uniform in composition and have a higher strength-to-weight ratio due to the absence of welds. On the other hand, a welded steel round bar is created by joining multiple pieces of steel together using various welding techniques. The steel pieces are heated and fused together at the edges to form a continuous bar. While the welding process provides flexibility in terms of length and diameter options, the presence of a weld can introduce certain structural concerns. Welded joints may be prone to defects, such as porosity or inclusions, which can compromise the overall strength and integrity of the bar. However, advancements in welding technology and quality control have significantly improved the reliability of welded steel round bars. In terms of applications, seamless steel round bars are often preferred in critical industries where high strength, reliability, and resistance to corrosion are essential. These industries may include oil and gas, aerospace, and automotive sectors. Welded steel round bars, on the other hand, are commonly used in less demanding applications where cost-effectiveness and availability are primary factors, such as construction, manufacturing, and general engineering. In summary, the key differences between seamless and welded steel round bars lie in their manufacturing process and resulting structural characteristics. Seamless bars are produced without any welds, offering a smoother surface, higher strength-to-weight ratio, and greater resistance to defects. Welded bars, while more cost-effective and readily available, may have weld-related vulnerabilities that need to be considered depending on the application. Ultimately, the choice between the two depends on the specific requirements and priorities of the intended use.
Q:What is the tolerance for diameter and length of steel round bars?
The tolerance of steel round bars' diameter and length may vary depending on industry standards and requirements. Typically, diameter tolerances are specified as a deviation, either positive or negative, from the nominal diameter. For example, a tolerance of +/- 0.005 inches implies that the actual diameter can deviate by up to 0.005 inches from the nominal diameter. Similarly, length tolerances are also expressed as a deviation, either positive or negative, from the nominal length. These tolerances can be indicated as a percentage or an absolute value. For instance, a tolerance of +/- 1% or +/- 0.5 inches means that the actual length can deviate by up to 1% of the nominal length or 0.5 inches, whichever is greater. It's worth noting that different industries may have diverse tolerance requirements depending on the specific applications and intended use of steel round bars. Hence, it is vital to refer to the relevant industry standards or consult with the manufacturer or supplier to determine the precise tolerance specifications for diameter and length in a specific context.
Q:What are the different welding techniques for steel round bars?
There are several different welding techniques that can be used for steel round bars, including shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), and flux-cored arc welding (FCAW). Each technique has its own advantages and disadvantages, depending on factors such as the thickness of the steel, the desired weld strength, and the specific application.
Q:How do steel round bars perform in high-pressure applications?
Steel round bars are known for their exceptional strength and durability, making them highly suitable for high-pressure applications. When subjected to high-pressure conditions, steel round bars exhibit excellent resistance to deformation and maintain their structural integrity. This enables them to withstand the intense forces and maintain their shape, ensuring the safety and reliability of the application. Steel round bars are often used in high-pressure applications such as hydraulic systems, oil and gas pipelines, aerospace components, and high-pressure vessels. Their robust nature allows them to handle the extreme pressures experienced in these applications without failure. The high tensile strength of steel ensures that the bars do not buckle or collapse under pressure, providing the necessary support and stability required for such demanding environments. Additionally, steel round bars possess excellent corrosion resistance properties, which is crucial in high-pressure applications. They can withstand exposure to harsh chemicals, moisture, and other corrosive elements, preventing rusting or degradation over time. This corrosion resistance ensures the longevity and reliability of the steel round bars in high-pressure environments, reducing the risk of premature failure. Furthermore, steel round bars offer versatility in terms of grades and alloys, allowing for customization to meet specific high-pressure requirements. Different grades of steel, such as carbon steel, alloy steel, or stainless steel, can be utilized based on the application's demands. This versatility ensures that the steel round bars can be tailored to provide optimal performance and meet the specific pressure and temperature requirements of the application. In conclusion, steel round bars excel in high-pressure applications due to their exceptional strength, durability, and corrosion resistance properties. Their ability to withstand intense forces and maintain their shape makes them a reliable choice for various industries, including hydraulic systems, oil and gas pipelines, aerospace, and high-pressure vessels. By utilizing steel round bars, companies can ensure the safety, reliability, and longevity of their high-pressure applications.

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