• Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars 42CrMO SCM440 System 1
  • Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars 42CrMO SCM440 System 2
  • Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars 42CrMO SCM440 System 3
Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars 42CrMO SCM440

Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars 42CrMO SCM440

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
90 m.t.
Supply Capability:
2000000 m.t./month

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Description of steel round bar:

1. Commodity: Round steel bar 

3. Technical: Hot rolling 
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm

5. Packing: In Bundle or according to your requirements.


Festures of steel round bar:

1.Dia 80-800mm Length:2000-13000mm or as required 
2.Technique:Forged 
3.Delivery Time:45 days 

 

Specifications of steel round bar:

1. Commodity: Round steel bar 

3. Technical: Hot rolling 
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm

 

Images of steel round bar:

Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars 42CrMO SCM440

FAQ:                                               

1. What is your main market?

We mainly export to Asia such as Japan,Korea,Thailand and North America and Middle East.

2. How long is the lead time?

Delivery time: 45 days after order confirmed.

3. What  payment term do you accept?

Payment: T/T or L/C at sight.

Q:Can steel round bars be used in the production of HVAC equipment?
Yes, steel round bars can be used in the production of HVAC equipment. Steel round bars are often used to create the structural framework and components of HVAC systems. They provide strength, durability, and stability necessary for various parts such as supports, brackets, and frames. Additionally, steel round bars can be easily fabricated, welded, and shaped to meet the specific requirements of HVAC equipment.
Q:Are steel round bars suitable for architectural applications?
Yes, steel round bars are suitable for architectural applications. They offer strength, durability, and versatility, allowing them to be used in various architectural designs such as railings, sculptures, and decorative elements. Steel round bars can be easily fabricated and have a sleek and modern aesthetic, making them a popular choice in the architectural industry.
Q:Can steel round bars be used in the transportation industry?
Yes, steel round bars can be used in the transportation industry. They are commonly used in the construction of various vehicle components such as axles, suspension systems, and chassis frames due to their high strength and durability.
Q:Can steel round bars be used for making tools?
Steel round bars are a great choice for making tools. They are widely used in tool making because they are strong, durable, and versatile. The strength of steel allows it to withstand heavy use and provides stability to tools. Additionally, steel round bars can be easily machined and shaped into different tool designs, making it possible to create a variety of tools such as wrenches, chisels, punches, and hammers. Furthermore, steel's resistance to corrosion ensures that tools made from steel round bars will last longer. In conclusion, steel round bars are a popular option in tool making because they have excellent mechanical properties and can be used for many different purposes.
Q:What are the different cutting methods used for steel round bars?
There are several cutting methods commonly used for steel round bars, including abrasive cutting, cold saw cutting, band saw cutting, and plasma cutting. Each method has its own advantages and suitability depending on factors such as the required precision, speed, and cost-effectiveness of the cutting process.
Q:What is the Young's modulus of a steel round bar?
The Young's modulus of a steel round bar is a measure of its stiffness or elasticity. It is a material property that determines how much a material deforms under a given load and is defined as the ratio of stress to strain. For steel, the Young's modulus typically ranges from 190 to 210 gigapascals (GPa). This means that for every unit of stress applied to the steel round bar, the strain experienced by the bar is approximately 190 to 210 times greater. The actual Young's modulus of a specific steel round bar may vary depending on various factors such as the specific grade of steel, its composition, and any heat treatment it has undergone. Therefore, it is important to consult the relevant material specifications or conduct specific testing to determine the exact Young's modulus for a particular steel round bar.
Q:What is the difference between a forged and a peeled steel round bar?
A forged steel round bar and a peeled steel round bar are both types of steel bars used in various industries for different applications. However, there are distinct differences between the two in terms of their manufacturing processes and physical characteristics. A forged steel round bar is made by heating a solid steel billet to a high temperature and then applying pressure to shape it into the desired form. This process involves the use of machinery, such as hammers or presses, to shape the steel and create the round bar. The forging process imparts strength and durability to the steel, making it suitable for applications that require high strength and resistance to wear and tear. On the other hand, a peeled steel round bar is produced through a different manufacturing process known as peeling or turning. In this process, a solid steel bar is rotated against a cutting tool, which removes the outer layer of the bar, resulting in a smooth and precise surface finish. Peeling removes any surface defects or imperfections present in the original bar, improving its dimensional accuracy and surface quality. In terms of physical characteristics, forged steel round bars typically have a rougher surface texture due to the nature of the forging process. This rough texture can provide enhanced grip or adhesion when used in certain applications. Additionally, forged bars often have a denser and more uniform internal grain structure, which contributes to their superior mechanical properties. Peeled steel round bars, on the other hand, possess a smooth and shiny surface finish as a result of the peeling process. This smooth surface makes peeled bars suitable for applications that require aesthetic appeal or require a low coefficient of friction. However, the peeling process may result in a slight reduction in the overall diameter of the bar. In summary, the main difference between a forged and a peeled steel round bar lies in their manufacturing processes and resulting physical characteristics. Forged bars are created through the application of pressure, resulting in a rougher surface texture and superior mechanical properties. Peeled bars, on the other hand, are produced by removing the outer layer of a steel bar, resulting in a smooth surface finish and improved dimensional accuracy. The choice between these two types of bars ultimately depends on the specific requirements of the application at hand.
Q:How do steel round bars compare to aluminum round bars?
Steel round bars are generally stronger and more durable than aluminum round bars. They have a higher tensile strength, making them suitable for heavy-duty applications that require high levels of strength and resistance to bending or deformation. Aluminum round bars, on the other hand, are lighter and more corrosion-resistant, making them ideal for applications that prioritize weight reduction and resistance to exposure to harsh environments. The choice between steel and aluminum round bars ultimately depends on the specific requirements of the application.
Q:What is the difference between hot rolled and cold rolled steel round bars?
The main difference between hot rolled and cold rolled steel round bars lies in the process of production. Hot rolled steel round bars are formed by heating the steel above its recrystallization temperature and then rolling it into the desired shape. This process makes the steel more malleable and ductile, resulting in a rougher surface finish. On the other hand, cold rolled steel round bars are formed by rolling the steel at room temperature. This process produces a smoother surface finish and tighter dimensional tolerances, but it also makes the steel less malleable. Overall, the choice between hot rolled and cold rolled steel round bars depends on the specific application and desired characteristics of the end product.
Q:What is the difference between seamless and welded steel round bars?
The main difference between seamless and welded steel round bars lies in their production process. Seamless steel round bars are made by piercing a solid steel billet to create a hollow tube, which is then elongated and rolled to the desired size and shape. On the other hand, welded steel round bars are formed by welding together two or more pieces of steel, typically using a fusion process. This results in a visible seam along the length of the bar. While seamless bars offer a smoother and more uniform surface, welded bars are generally more cost-effective and readily available in a wider range of sizes and lengths.

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