Annealing Peeling Bearing Steel SUJ2 Bars
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 m.t./month
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Item specifice
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
10-300mm
Length:
6-12m
Net Weight:
2mt
Annealing Peeling Bearing Steel SUJ2 Bars
Product Description of Annealing Peeling Bearing Steel SUJ2 Bars
1. Steel grade: ASTM52100, SUJ2, 100Gr6,GCr15
2. Length: 6M-12M
3. Diameter: 16mm-300mm
4. Product range: round bar, flat bar, square bar,wire rod, sheet
5. Technique: Hot rolled, forged, cold drawn
Specification of Annealing Peeling Bearing Steel SUJ2 Bars
Material | SUJ2 | Round bar | Dia(mm) | 10-300mm |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12m | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500mm |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200mm | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12m |
Chemical Composition of Annealing Peeling Bearing Steel SUJ2 Bars
C | Si | Mn | Cr | Ni | Mo | P | S |
0.95~1.05 | 0.15~0.35 | 0.25~0.45 | 1.40~1.65 | ≤0.30 | ≤0.10 | ≤0.025 | ≤0.025 |
Photo Show of Annealing Peeling Bearing Steel SUJ2 Bars
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of Annealing Peeling Bearing Steel SUJ2 Bars
1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some special material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
Company Information
CNBM International Corporation is the most important trading platform of CNBM group.
Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.
F A Q
1, Your advantages?
professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale
2, Test & Certificate?
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem
3, Factory or Trading Company?
CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.
4, Payment Terms?
30% TT as deposit and 70% before delivery.
Irrevocable L/C at sight.
5, Trading Terms?
EXW, FOB, CIF, FFR, CNF
6, After-sale Service?
CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.
For any problem, please kindly contact us at any your convenient time.
We'll reply you in our first priority within 24 hours.
- Q:What are the environmental impacts of steel round bar production?
- The production of steel round bars has a range of environmental consequences. Firstly, the extraction of raw materials, like iron ore and coal, necessary for steel production, results in habitat destruction, deforestation, and disruption of ecosystems. Mining activities also produce substantial amounts of waste, including tailings and waste rock, which can contaminate soil, bodies of water, and the air. Converting iron ore into steel requires significant energy consumption, primarily derived from fossil fuels. The burning of these fuels releases greenhouse gases, such as carbon dioxide and nitrogen oxides, contributing to climate change and air pollution. Furthermore, steel production emits particulate matter, sulfur dioxide, and other pollutants that can have adverse effects on human health and ecosystems. The manufacturing of steel also demands substantial water usage for cooling, cleaning, and processing. Without proper water management practices, this can lead to water scarcity and pollution. Discharging untreated or inadequately treated wastewater from steel production can contaminate nearby water sources, impacting aquatic life and potentially harming human populations that rely on these bodies of water. Additionally, the transportation of raw materials and finished steel products over long distances contributes to carbon emissions and air pollution. The energy-intensive nature of steel production and transportation further amplifies the overall environmental impacts of the industry. To mitigate these environmental impacts, the steel industry has implemented various measures. These include adopting more efficient technologies, such as recycling and waste reduction, enhancing energy efficiency, and implementing cleaner production processes. Furthermore, the industry has been prioritizing the reduction of its carbon footprint by increasing the utilization of renewable energy sources and implementing carbon capture and storage technologies. Overall, while the production of steel round bars has negative environmental implications, ongoing efforts within the industry aim to minimize these impacts and transition towards more sustainable practices.
- Q:Can steel round bars be used in the manufacturing of valves?
- Yes, steel round bars can be used in the manufacturing of valves. Steel round bars are commonly used in valve manufacturing due to their high strength, durability, and corrosion resistance. The round bars can be machined and forged into various valve components such as stems, bodies, and discs. Steel round bars also provide excellent mechanical properties, ensuring the valves can withstand high pressure and temperature conditions. Additionally, steel round bars can be easily welded or threaded to connect different valve parts together. Overall, steel round bars are a reliable and popular material choice for valve manufacturing.
- Q:What are the advantages of using heat-resistant steel round bars?
- There are several advantages of using heat-resistant steel round bars. Firstly, heat-resistant steel round bars are specifically designed to withstand high temperatures without losing their mechanical properties. This means they can maintain their strength and structural integrity even in extreme heat conditions. Secondly, heat-resistant steel round bars have excellent corrosion resistance. This makes them highly durable and suitable for use in environments where they may be exposed to corrosive substances or chemicals. Their resistance to corrosion ensures a longer lifespan and reduces the need for frequent maintenance or replacement. Additionally, heat-resistant steel round bars have superior thermal conductivity. This property allows them to efficiently transfer heat, which can be beneficial in various applications. For example, in industries like power generation or petrochemicals, where heat transfer is crucial, using heat-resistant steel round bars ensures optimal performance and energy efficiency. Furthermore, heat-resistant steel round bars offer excellent dimensional stability. Even when subjected to high temperatures, they maintain their shape and size without warping or deforming. This property is particularly important in applications where precise measurements and tight tolerances are required. Lastly, heat-resistant steel round bars are readily available in various sizes and grades, offering versatility in their applications. They can be used in a wide range of industries such as aerospace, automotive, construction, and manufacturing, where high temperatures are involved. In conclusion, the advantages of using heat-resistant steel round bars include their ability to withstand high temperatures, excellent corrosion resistance, superior thermal conductivity, dimensional stability, and versatility in applications. These benefits make them an ideal choice for industries requiring materials that can perform reliably under extreme heat conditions.
- Q:What is the tensile strength of steel round bars?
- The tensile strength of steel round bars varies depending on the specific grade or type of steel used. On average, steel round bars possess a tensile strength ranging from 400 to 500 megapascals (MPa). This implies that steel round bars can endure a pulling or stretching force of 400 to 500 MPa before undergoing permanent deformation or fracturing. It is worth mentioning that varying grades of steel, such as mild steel, carbon steel, or alloy steel, may exhibit different tensile strength values. Moreover, factors like heat treatment, manufacturing process, and round bar size can also impact its tensile strength. Therefore, it is advisable to seek accurate and precise information regarding the tensile strength of a particular steel round bar from the specific manufacturer or supplier.
- Q:Can steel round bars be coated or plated?
- Yes, steel round bars can be coated or plated using a variety of methods such as electroplating, hot-dip galvanizing, or powder coating. Coating or plating steel round bars helps to enhance their corrosion resistance, improve their appearance, and provide additional durability and protection.
- 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:How do you calculate the weight of a steel round bar based on its length and volume?
- In order to determine the weight of a steel round bar based on its length and volume, it is necessary to have knowledge of the steel's density. The density denotes the mass per unit volume of the material. The weight can be calculated using the following formula: Weight = Volume × Density To begin, one must calculate the volume of the steel round bar. The volume of a cylinder, which is the shape of a round bar, can be determined using the following formula: Volume = π × (Radius)^2 × Length The value of π is a mathematical constant approximately equal to 3.14, and Radius represents the radius of the round bar. Once the volume is obtained, it can be multiplied by the density of the steel to find the weight. It is important to note that the density of steel may vary depending on the specific type being used. For instance, mild steel has a density of approximately 7850 kg/m³. Therefore, the weight of the steel round bar can be calculated as: Weight = Volume × Density For example, let us consider a steel round bar with a length of 1 meter and a radius of 0.5 meters. To calculate the weight, we first need to determine the volume: Volume = π × (0.5)^2 × 1 Volume = 0.7854 m³ Next, we multiply the volume by the density of steel: Weight = 0.7854 m³ × 7850 kg/m³ Weight = 6171.79 kg Hence, the weight of the steel round bar would be approximately 6171.79 kg.
- Q:What are the different grades of alloy steel round bars for automotive applications?
- Alloy steel round bars are commonly used in automotive applications due to their excellent strength, durability, and resistance to wear and corrosion. These bars are typically graded based on their chemical composition, mechanical properties, and suitability for specific automotive uses. Here are some of the different grades of alloy steel round bars commonly used in automotive applications: 1. 4140/42CrMo4: This is a widely used grade of alloy steel round bars known for its high tensile strength, good toughness, and excellent fatigue strength. It is commonly used in applications such as gears, crankshafts, axles, and suspension components. 2. 8620: This grade of alloy steel round bars offers excellent hardenability and can be heat treated to achieve high strength and toughness. It is commonly used in applications such as shafts, gears, and camshafts. 3. 4340: This grade of alloy steel round bars is known for its high strength and toughness. It offers good wear resistance and can be heat treated to achieve even higher hardness and strength. It is commonly used in applications such as connecting rods, crankshafts, and high-stress components. 4. 52100: This is a high carbon, chromium alloy steel known for its excellent hardness and wear resistance. It is commonly used in applications such as bearings and races, where high strength and durability are required. 5. 316L: This grade of alloy steel round bars is known for its excellent corrosion resistance, particularly in harsh environments. It is commonly used in automotive applications such as exhaust systems, where resistance to corrosion is critical. 6. 4340M: This is a modified version of the 4340 grade, specifically designed for high-performance automotive applications. It offers improved fatigue strength and toughness, making it suitable for demanding applications such as high-performance engine components. These are just a few examples of the different grades of alloy steel round bars used in automotive applications. The specific grade chosen depends on the requirements of the application, including the desired strength, toughness, wear resistance, and corrosion resistance.
- Q:Can steel round bars be used for gear applications?
- Yes, steel round bars can be used for gear applications. Steel round bars are often used for manufacturing gears due to their high strength, durability, and ability to withstand heavy loads and wear. They can be machined and heat-treated to meet specific gear requirements, making them a suitable choice for various gear applications in industries such as automotive, machinery, and manufacturing.
- Q:What are the considerations for selecting the right steel grade for a round bar?
- There are various factors to consider when choosing the appropriate steel grade for a round bar. To begin with, the intended application of the round bar should be taken into account. Different steel grades possess distinct properties that make them suitable for specific purposes. For instance, stainless steel or high-alloy steel, which have exceptional heat resistance, would be ideal for use in high-temperature environments. Conversely, carbon steel, with its good strength and ductility, may be more appropriate for structural applications. Another factor to consider is the desired mechanical properties of the round bar, including tensile strength, yield strength, hardness, and toughness. These properties can vary significantly among different steel grades, so it is crucial to select a grade that meets the specific requirements of the application. Corrosion resistance is also an important consideration. If the round bar will be exposed to corrosive environments, such as in marine or chemical applications, it is advisable to choose a stainless steel grade with high resistance to corrosion. On the other hand, if corrosion resistance is not a major concern, a carbon steel grade may be more cost-effective. Cost is another factor to be taken into account. Different steel grades have varying costs based on availability, demand, and manufacturing processes. It is important to strike a balance between the desired properties of the round bar and the available budget to ensure cost-effectiveness. Moreover, the manufacturability of the steel grade should be considered. Some steel grades may be more challenging to machine or weld, which can impact the production process and cost. It is crucial to select a readily available steel grade that can be easily processed to meet the required specifications. Finally, it is always advisable to seek guidance from steel suppliers, engineers, or metallurgists to ensure that the chosen steel grade aligns with the specific requirements of the application. Their expertise and experience in the industry can provide valuable insights and recommendations.
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Annealing Peeling Bearing Steel SUJ2 Bars
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 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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