Normal Steel Round Bars For Middle Sizes

Normal Steel Round Bars For Middle Sizes

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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 is the tensile strength of round steel bars of diameter 28?: Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed in diameter, in units of millimeters (mm), such as "50mm", which means a diameter of 50 millimeters of round steel.

Q:How are steel round bars used in the manufacturing of agricultural implements?: Steel round bars are commonly used in the manufacturing of agricultural implements due to their durability, strength, and versatility. These bars are typically made of carbon steel, which provides excellent resistance to wear and tear, making them ideal for heavy-duty applications in the agricultural industry. One of the primary uses of steel round bars in the manufacturing of agricultural implements is in the construction of plows. Plows are essential tools used for breaking up and turning over soil, preparing it for planting. The steel round bars are used to create the main framework of the plow, ensuring it can withstand the high levels of force and pressure exerted while tilling the soil. Steel round bars are also utilized in the manufacturing of harrows, which are used for cultivating the soil after plowing. Harrows are designed to break up clumps of soil, level the ground, and remove weeds, creating an ideal seedbed for planting. The strength of steel round bars allows them to withstand the rigorous use of harrows without bending or breaking, ensuring their longevity and effectiveness. In addition to plows and harrows, steel round bars are commonly used in the fabrication of other agricultural implements such as cultivators, seeders, and sprayers. These implements require sturdy and durable components to withstand the demanding conditions of agricultural operations. Steel round bars provide the necessary strength and structural integrity to these implements, enabling them to perform their intended functions effectively. Furthermore, steel round bars are also used in the manufacturing of livestock equipment such as gates, fences, and cattle panels. These components need to be strong and robust to contain livestock and withstand their movements and force. Steel round bars fulfill these requirements, ensuring the safety and security of animals and the durability of the equipment. Overall, steel round bars play a crucial role in the manufacturing of agricultural implements. Their durability, strength, and versatility make them an ideal choice for creating sturdy and reliable equipment that can withstand the demanding conditions of the agricultural industry.

Q:What are the advantages of using steel round bars over other materials?: Steel round bars have numerous advantages compared to other materials: 1. Strength and durability: Known for their remarkable strength and durability, steel round bars are perfect for a wide range of applications. They can withstand heavy loads and resist deformation, making them ideal for structural purposes. 2. Versatility: Steel round bars offer tremendous versatility due to their various sizes, grades, and finishes. They can be easily customized to meet specific requirements, such as different lengths, diameters, and surface finishes. 3. Cost-effectiveness: Steel round bars provide a cost-effective solution when compared to other materials. They are readily available and affordable, thanks to their abundance and efficient manufacturing processes. Moreover, their high strength-to-weight ratio allows for the use of smaller quantities of steel without compromising strength. 4. Corrosion resistance: Steel round bars can be produced with different finishes, including galvanized or stainless steel, which enhances their resistance to corrosion. This enables them to be suitable for outdoor applications or environments where they may encounter moisture or chemicals. 5. Machinability: Steel round bars are highly regarded for their excellent machinability, allowing for easy cutting, drilling, or shaping according to specific design requirements. This characteristic promotes efficient processing and reduces production costs. 6. Fire resistance: Steel is inherently fire-resistant and does not contribute to the spread of flames. Consequently, steel round bars are the preferred choice in applications where fire safety is a concern, such as construction or industrial settings. 7. Recyclability: Steel is highly recyclable, making steel round bars an environmentally friendly option. They can be easily melted down and reused to create new steel products without compromising their properties or strength. In summary, the advantages of using steel round bars over other materials include their strength, durability, versatility, cost-effectiveness, corrosion resistance, machinability, fire resistance, and recyclability. These factors make steel round bars the preferred choice in various industries, including construction, manufacturing, automotive, and infrastructure projects.

Q:What are the advantages of using nitriding steel round bars?: There are several advantages of using nitriding steel round bars. Firstly, nitriding steel round bars have a high surface hardness. The nitriding process involves the diffusion of nitrogen into the surface layer of the steel, which creates a hard nitride layer. This significantly improves the wear resistance and durability of the round bars, making them suitable for applications that involve heavy loads or abrasive environments. Secondly, nitriding steel round bars have improved fatigue strength. The nitride layer formed during the nitriding process also enhances the fatigue resistance of the steel. This means that the round bars are able to withstand repeated loading and high-stress conditions without experiencing premature failure. Additionally, nitriding steel round bars have excellent corrosion resistance. The nitride layer acts as a barrier against corrosion, protecting the underlying steel from being attacked by corrosive elements such as moisture, chemicals, or saltwater. This makes them ideal for use in harsh environments where corrosion is a concern, such as marine or chemical industries. Furthermore, nitriding steel round bars have a high surface hardness retention at elevated temperatures. Unlike other surface hardening processes, nitriding does not rely on the formation of a thin coating on the surface of the steel. Instead, it modifies the surface layer of the steel, resulting in a hardened layer that remains stable even at high temperatures. This allows the round bars to maintain their hardness and mechanical properties even in demanding heat-intensive applications. Overall, the advantages of using nitriding steel round bars include high surface hardness, improved fatigue strength, excellent corrosion resistance, and high surface hardness retention at elevated temperatures. These properties make them a preferred choice for various applications in industries such as automotive, aerospace, manufacturing, and construction.

Q:What is the difference between a rough turned and a polished steel round bar?: A rough turned steel round bar has undergone a preliminary machining process that removes surface imperfections and excess material, providing a slightly smoother finish. On the other hand, a polished steel round bar has undergone further polishing or grinding processes to achieve a much smoother and aesthetically appealing surface finish.

Q:What are the common applications of steel round bars?: Steel round bars are widely used in various industries due to their strength, versatility, and durability. Some common applications of steel round bars include: 1. Construction: Steel round bars are commonly used in construction projects such as building frames, bridges, and infrastructure. They provide structural support and can withstand heavy loads. Additionally, steel round bars are often used as reinforcement in concrete structures, increasing their strength and resilience. 2. Manufacturing: Steel round bars are utilized in the manufacturing industry for the production of various components and machinery. They are commonly used in the fabrication of gears, shafts, couplings, and axles, as they possess excellent machinability and can withstand high levels of stress and pressure. 3. Automotive: Steel round bars are extensively used in the automotive industry for manufacturing critical components like crankshafts, steering systems, suspension parts, and axles. Due to their high tensile strength and resistance to wear and tear, steel round bars play a crucial role in ensuring the safety and reliability of vehicles. 4. Aerospace: The aerospace industry relies heavily on steel round bars for the production of aircraft components, including landing gear, propeller shafts, and structural elements. Steel's high strength-to-weight ratio and excellent fatigue resistance make it an ideal choice for withstanding the extreme conditions experienced in aerospace applications. 5. Energy and power: Steel round bars are used in the energy and power sector for manufacturing equipment like turbines, generators, and power transmission systems. Steel's ability to handle high temperatures and its resistance to corrosion make it a suitable material for these applications. 6. Oil and gas: Steel round bars find extensive use in the oil and gas industry for the production of drilling equipment, pipelines, and valves. Steel's resistance to corrosion and high-pressure environments makes it an essential material in this sector. In summary, steel round bars have a wide range of applications across industries due to their strength, versatility, and resistance to wear and tear. They play a crucial role in construction, manufacturing, automotive, aerospace, energy, and power, as well as the oil and gas industry.

Q:What are the different types of steel round bar profiles?: There are several different types of steel round bar profiles available in the market. Some of the most common profiles include: 1. Plain Round Bar: This is the most basic and commonly used profile. It is a solid cylindrical bar with a smooth surface and uniform diameter throughout its length. 2. Deformed Round Bar: This type of round bar has deformations or ribs along its surface. These deformations provide better bonding with concrete when used in reinforced concrete structures, making it ideal for construction applications. 3. Hollow Round Bar: As the name suggests, this profile has a hollow center. It is often used in industries where weight reduction is important or where the round bar needs to be used as a conduit for fluids or gases. 4. Threaded Round Bar: This profile has threads along its length, allowing it to be easily screwed into other components. It is commonly used in applications where secure fastening or adjustability is required. 5. Half-Round Bar: This profile has a flat side and a rounded side, giving it a semi-circular shape. It is often used in decorative applications, such as handrails, where a sleek and aesthetically pleasing appearance is desired. 6. Square Bar: Although not strictly a round profile, square bars are often included in this category. These bars have four equal sides and are commonly used in applications where higher torsional strength is required. 7. Hexagonal Bar: Similar to square bars, hexagonal bars have six equal sides. They are often used in applications where high torque resistance is needed or when a distinctive appearance is desired. These are just some of the different types of steel round bar profiles available. The choice of profile depends on the specific application requirements, such as structural strength, bonding capabilities, or aesthetic considerations.

Q:What is the cost of steel round bars compared to other materials?: The cost of steel round bars can vary depending on various factors such as the grade of steel, the size and dimensions of the bar, and market conditions. However, in general, steel round bars tend to be more cost-effective compared to other materials commonly used in construction and manufacturing. For instance, when compared to materials like aluminum or titanium, steel round bars are typically more affordable. Steel is abundantly available, making it a cost-efficient choice for many applications. Additionally, steel has excellent strength and durability properties, making it a preferred material for structural purposes. Compared to materials like wood or plastic, steel round bars may be more expensive initially. However, when considering the long-term benefits such as its longevity, resistance to corrosion, and minimal maintenance requirements, steel still offers a cost-effective solution. It is important to note that the cost of steel round bars can vary significantly depending on market conditions, such as the availability of raw materials and the demand for steel products. Additionally, specialized or high-grade steel alloys may come at a higher cost due to their specific properties or manufacturing processes. In summary, steel round bars generally offer a cost-effective option compared to many other materials used in construction and manufacturing. However, it is always recommended to research current market prices and consider specific project requirements before making any final cost assessments.

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:What are the typical tolerances for steel round bars?: The typical tolerances for steel round bars can vary depending on the specific requirements of the application or industry. However, there are generally accepted standard tolerances that are commonly used. For diameter, the typical tolerances for steel round bars are usually within a few thousandths of an inch. This means that the actual diameter of the bar can deviate slightly from the specified diameter, but it will still fall within an acceptable range. In terms of straightness, steel round bars are commonly produced with a straightness tolerance that allows for some deviation from a perfectly straight line. The typical tolerance for straightness is usually measured in units of inches per foot or millimeters per meter. This means that the bar may have a slight bend or curve, but it should not exceed the specified tolerance. Surface finish is another important aspect of steel round bars. The typical tolerance for surface finish is usually specified in terms of roughness average (Ra) or surface roughness in micrometers. This tolerance ensures that the surface of the bar is smooth and free from any significant imperfections, such as pits or scratches. It is important to note that these typical tolerances can vary depending on the specific grade or type of steel being used, as well as the intended application. In some cases, tighter tolerances may be required for precision or critical applications, while looser tolerances may be acceptable for less demanding applications. Therefore, it is always recommended to consult the relevant industry standards or specifications to determine the specific tolerances required for a particular steel round bar.

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