AISI4140 Forged Round Bar with Turned Surface
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
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:
16-300mm
Length:
6-12mm
Net Weight:
2mt
AISI4140 Forged Round Bar with Turned Surface
Product Description of AISI4140 Forged Round Bar with Turned Surface
1. Steel grade: ASTM4140, SCM440, 42CrMo, DIN1.7225
2. Length: 6M-12M
3. Diameter: 16mm-300mm
4. Product range: round bar, flat bar, square bar
5. Technique: Hot rolled, forged, cold drawn
Specification of AISI4140 Forged Round Bar with Turned Surface
Material | AISI4140 | Round bar | Dia(mm) | 16-300mm |
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 AISI4140 Forged Round Bar with Turned Surface
C | Si | Mn | Cr | Mo | P | S |
0.38~0.43 | 0.15~0.35 | 0.75~1.00 | 0.8~1.1 | 0.15~0.25 | ≤0.035 | <0.04< td=""> |
Photo Show of AISI4140 Forged Round Bar with Turned Surface
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of AISI4140 Forged Round Bar with Turned Surface
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: How do steel round bars compare to other materials like aluminum or stainless steel?
- Steel round bars have several advantages over other materials like aluminum or stainless steel. Firstly, steel round bars are known for their exceptional strength and durability. They have a high tensile strength, making them capable of withstanding heavy loads and extreme conditions. This makes them ideal for applications where strength and resilience are crucial, such as construction, manufacturing, and engineering. Compared to aluminum, steel round bars offer superior strength and hardness. While aluminum is lightweight, it is not as strong as steel, which can be a limiting factor in certain applications. Steel round bars also have a higher resistance to impact and abrasion, making them more suitable for heavy-duty applications that require resistance to wear and tear. In terms of comparing steel round bars to stainless steel, it's important to note that stainless steel is an alloy that contains steel as its main component. Stainless steel is known for its corrosion resistance, making it an excellent choice for applications where exposure to moisture or harsh environments is a concern. However, stainless steel does not possess the same level of strength as steel round bars. Steel round bars are capable of carrying heavier loads and providing better structural integrity. Another aspect to consider is the cost-effectiveness of steel round bars compared to aluminum or stainless steel. Steel is generally more affordable than stainless steel and aluminum, making it a popular choice for a wide range of applications. Additionally, steel round bars are readily available in various sizes and grades, offering versatility and ease of use. Overall, steel round bars excel in terms of strength, durability, and cost-effectiveness when compared to other materials like aluminum or stainless steel. However, the choice of material ultimately depends on the specific requirements of the application and the desired properties needed for the project.
- Q: What are the different types of steel used in round bars?
- Round bars are produced using various types of steel. The most common options are as follows: 1. Carbon Steel: This basic steel variant contains a low carbon content (typically less than 1%) and is recognized for its robustness and durability. Carbon steel is often utilized in construction and structural projects. 2. Alloy Steel: By introducing elements like manganese, chromium, or nickel to carbon steel, alloy steel is created. These additives enhance the steel's strength, hardness, and ability to resist corrosion. Machinery and automotive components frequently employ alloy steel round bars. 3. Stainless Steel: Stainless steel is composed of at least 10.5% chromium by mass. This high chromium content grants stainless steel its distinctive properties, including corrosion resistance and a shiny appearance. Stainless steel round bars find wide applications in the food industry, construction, and in environments requiring high corrosion resistance. 4. Tool Steel: Designed to endure high temperatures and resist wear and tear, tool steel is a specialized steel type. It is commonly employed in the production of tools, dies, and in settings necessitating exceptional strength and hardness. 5. Duplex Stainless Steel: This stainless steel variant combines austenite and ferrite phases in its microstructure. As a result, it possesses superior strength and corrosion resistance compared to regular stainless steel. Duplex stainless steel round bars are frequently utilized in marine and chemical industries. In summary, the selection of steel for round bars is contingent upon specific requirements such as strength, corrosion resistance, and temperature resistance, depending on the intended application.
- Q: Can steel round bars be coated for added protection?
- Yes, steel round bars can be coated for added protection. Coating steel round bars helps to enhance their resistance against corrosion, wear and tear, and other environmental factors that may lead to deterioration or damage. There are various types of coatings available for steel round bars, such as hot-dip galvanizing, epoxy coating, powder coating, and zinc plating. These coatings provide a protective layer that acts as a barrier between the steel and the surrounding environment, preventing the steel from coming into direct contact with corrosive substances or abrasive elements. Coating steel round bars not only increases their longevity and durability but also improves their aesthetic appearance. Additionally, the choice of coating depends on the specific application, environment, and desired level of protection.
- Q: What is the difference between a bright and a cold finished steel round bar?
- A bright steel round bar refers to a steel bar that has undergone a process called bright drawing, which involves passing the bar through a series of dies to achieve a smooth and shiny surface finish. On the other hand, a cold finished steel round bar is produced by cold drawing, which involves pulling the bar through a die to reduce its diameter and improve its dimensional accuracy. The cold finishing process does not result in a bright and shiny surface like bright drawing does, but it enhances the mechanical properties and overall quality of the bar.
- Q: What are the different specifications for steel round bars?
- The different specifications for steel round bars typically include the diameter, length, and grade of the steel. Other specifications may include the tolerance levels for diameter and length, as well as any specific requirements for surface finish or heat treatment.
- Q: What are the advantages of using copper-alloy steel round bars?
- There are several advantages of using copper-alloy steel round bars in various applications. Firstly, copper-alloy steel round bars offer excellent corrosion resistance. The presence of copper in the alloy helps to protect the steel from rust and corrosion, making it suitable for use in environments with high levels of moisture or chemicals. This corrosion resistance extends the lifespan of the round bars, reducing the need for frequent replacements and maintenance. Secondly, copper-alloy steel round bars have high thermal and electrical conductivity. The copper content in the alloy enhances these properties, making them ideal for applications that require efficient heat transfer or electrical conductivity. This makes them suitable for use in electrical components, heat exchangers, and other similar applications. Another advantage of copper-alloy steel round bars is their superior machinability. Copper has excellent machinability properties, which allows for easy cutting, drilling, and shaping of the round bars. This makes them easier to work with and reduces machining time and costs. Additionally, copper-alloy steel round bars offer good strength and toughness. The steel component in the alloy provides the necessary strength to withstand heavy loads and impacts, while the copper component enhances the toughness, making them resistant to cracking or breaking under stress. This makes them suitable for use in structural applications, where high strength and durability are required. Furthermore, copper-alloy steel round bars exhibit good thermal stability. They can withstand high temperatures without losing their mechanical properties, making them suitable for applications that involve exposure to extreme heat or thermal cycling. In conclusion, the advantages of using copper-alloy steel round bars include excellent corrosion resistance, high thermal and electrical conductivity, superior machinability, good strength and toughness, and high thermal stability. These properties make them a preferred choice in various industries, including construction, electrical, automotive, and manufacturing.
- Q: What are the advantages of using chromium-alloy steel round bars?
- Chromium-alloy steel round bars offer numerous benefits. Firstly, they possess exceptional corrosion resistance. The addition of chromium enhances their ability to withstand corrosion and oxidation, making them suitable for use in harsh environments and applications involving moisture or chemicals. This resistance prolongs their lifespan, reducing maintenance and replacement expenses. Secondly, these round bars provide high strength and durability. The alloying of chromium with steel improves their mechanical properties, including tensile strength, hardness, and toughness. As a result, they are ideal for applications requiring strength and resistance to wear and tear, such as construction, heavy machinery, and the automotive industry. Another advantage is their heat resistance. The inclusion of chromium enhances the steel's ability to maintain its strength and structural integrity even at high temperatures. This makes it suitable for use in high-temperature applications like furnace components, boilers, and heat exchangers. Moreover, chromium-alloy steel round bars are known for their excellent machinability. The alloying elements in the steel enhance its ability to be easily machined, enabling precise shaping and finishing. This simplifies and reduces the cost of manufacturing complex components or parts. Lastly, these round bars are readily available in the market. Due to their popularity and widespread use, they can be easily obtained from various suppliers. This availability ensures a consistent supply of the material, minimizing production downtime and lead times. Overall, the advantages of using chromium-alloy steel round bars encompass corrosion resistance, high strength and durability, heat resistance, excellent machinability, and availability. These properties make them a versatile and dependable choice for various industries and applications.
- Q: What is the maximum aluminum content allowed for steel round bars?
- The aluminum content permissible for steel round bars fluctuates based on the particular steel grade and industry norms. Generally, the aluminum content in steel round bars is commonly restricted to a maximum range of 0.03-0.06% for the majority of commercial and structural steel grades. Nevertheless, certain specialized steel grades, particularly those employed in the aerospace sector, may permit higher levels of aluminum content. It is crucial to refer to the technical specifications or industry norms of the specific steel grade to ascertain the maximum permissible aluminum content for steel round bars.
- Q: How do you calculate the moment of inertia for a steel round bar?
- To calculate the moment of inertia for a steel round bar, you can use the formula for the moment of inertia of a solid cylinder. The moment of inertia, usually denoted as I, represents the resistance of an object to changes in its rotation. The formula for the moment of inertia of a solid cylinder is: I = (1/2) * m * r^2 Where: - I is the moment of inertia - m is the mass of the cylinder - r is the radius of the cylinder To calculate the moment of inertia for a steel round bar, you need to know the mass and the radius of the bar. The mass can be determined by multiplying the density of steel by the volume of the cylinder. The volume of a cylinder is given by the formula: V = π * r^2 * h Where: - V is the volume - r is the radius - h is the height or length of the round bar Once you have the mass and the radius, you can substitute these values into the formula for the moment of inertia to calculate it. Remember to convert the units to be consistent (e.g., if the radius is given in centimeters, convert it to meters). It is important to note that the moment of inertia calculated using this formula assumes that the steel round bar is a solid cylinder. If the bar has a different shape or has hollow sections, you will need to consider those factors in your calculation.
- Q: What is the maximum phosphorus content allowed for steel round bars?
- The maximum phosphorus content allowed for steel round bars varies depending on the specific steel grade and industry standards. However, in general, the phosphorus content in steel round bars is typically limited to a maximum of 0.04% to 0.05%. This limitation is imposed to ensure the desired mechanical properties, such as strength, toughness, and ductility, of the steel product. Higher phosphorus content can negatively impact these properties and may lead to reduced weldability, increased brittleness, and decreased corrosion resistance. Therefore, manufacturers and regulatory bodies set strict limits on phosphorus content to ensure the quality and performance of steel round bars in various applications. It is important to consult relevant industry standards or specifications to determine the specific maximum phosphorus content allowed for a particular steel grade or application.
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AISI4140 Forged Round Bar with Turned Surface
- Ref Price:
-
- Loading Port:
- Tianjin
- 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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