SCM440 SCM415 SAE4140 Steel Round Bar /AISI 4140 Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
You Might Also Like
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,CE
Thickness:
as required
Length:
as required
Net Weight:
as required
SCM440 SCM415 SAE4140 Steel Round Bar /AISI 4140 Steels
1. Dia:12mm-300mm
2. Standard Performed: ASTM A29/A29M-04
3. Equal Standard:
America Standard: AISI4140
International Standard: 42CrMo4
Japan Standard: SCM440
Germany Standard: 42CrMo4
4. Chemical composition:
Grade | C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Al |
AISI4140 | 0.38 0.41 | 0.15 0.35 | 0.85 1.00 | Max 0.015 | Max 0.040 | Max 0.25 | 0.80 1.10 | 0.15 0.25 | Max 0.35 | 0.012 0.030 |
5. Grade: ASTM A29 4140 42CrMo SCM440
Hardness:217HB
Tensile strength:1080(110)MPA
Yield strength: 930(95)MPA
Elogation: 12%
Reduction of area: 45%
AKV(impact value): 63J
- Q:What are the different types of finishes available for steel round bars?
- Steel round bars offer a variety of finishes, each with its own unique properties and appearance. 1. Mill Finish: The most commonly used finish is the mill finish, where the steel is left in its natural state after rolling and cooling. This results in a rough texture and the possibility of surface imperfections. 2. Hot Rolled Finish: Achieved by heating the steel to high temperatures and shaping it through rolling. This finish provides a smooth surface and is typically used in applications where aesthetics are not a priority. 3. Cold Drawn Finish: Involves pulling the steel through a die to reduce its diameter and increase its length. This finish offers a smooth surface, improved dimensional accuracy, and tighter tolerances. 4. Polished Finish: Steel round bars can be polished to achieve a smooth and reflective surface. This is done using abrasive materials or compounds to remove imperfections and enhance appearance. 5. Ground Finish: A process that involves removing a thin layer of material from the steel surface using abrasive grinding wheels. This creates a smooth and even finish suitable for applications that require precise dimensions and tight tolerances. 6. Coated Finish: Steel round bars can be coated with different materials for added protection against corrosion or to enhance appearance. Common coatings include galvanization, which applies a layer of zinc, and powder coating, which provides durability and a decorative finish. When choosing a finish for a steel round bar, it is important to consider the specific application and desired properties. Factors such as corrosion resistance, aesthetics, dimensional accuracy, and surface quality should be taken into account.
- Q:How do you prevent rust on steel round bars?
- There are various effective methods available to prevent rust on steel round bars. Here are some strategies you can utilize: 1. Employ a protective coating: An effective way to prevent rust is by applying a protective coating such as paint, varnish, or enamel. These coatings act as a barrier, preventing moisture and oxygen from reaching the steel surface and causing rust. 2. Opt for galvanization: Galvanizing steel round bars involves coating them with a layer of zinc. This process creates a protective barrier, as the zinc acts as a sacrificial anode, corroding instead of the steel. Galvanized steel is highly resistant to rust and is commonly used in outdoor applications. 3. Utilize powder coating: Powder coating is another effective method of preventing rust on steel round bars. In this process, a dry powder is electrostatically applied to the steel surface, which is then cured under heat. The resulting coating provides excellent protection against rust and corrosion. 4. Maintain regular cleaning and maintenance: To prevent rust, it is important to regularly clean your steel round bars and remove any dirt, moisture, or other corrosive substances. Additionally, applying a rust inhibitor or lubricant can further protect the steel from corrosion. 5. Ensure proper storage: Proper storage of steel round bars is crucial in reducing the risk of rust. It is advisable to store them in a dry and well-ventilated area, avoiding direct contact with the ground or moisture-prone areas. Using pallets or racks to keep the steel elevated and properly spaced can also help prevent rust formation. 6. Avoid exposure to harsh environments: Exposing steel round bars to harsh environments, such as saltwater or acidic chemicals, significantly increases the risk of rust. If feasible, it is recommended to protect the steel from prolonged exposure to these substances or consider using a more corrosion-resistant material in such conditions. By implementing these preventive measures, you can effectively minimize the likelihood of rust formation on steel round bars, ensuring their durability and preserving their structural integrity.
- Q:Are steel round bars suitable for the production of axles?
- Indeed, axles can be produced using steel round bars. Steel, being a robust and long-lasting material, offers exceptional strength and stability, rendering it an optimal selection for axles. The circular form of these bars facilitates effortless machining and shaping processes, guaranteeing an accurate and efficient axle design. Moreover, steel round bars possess commendable resistance against wear, fatigue, and impact, indispensable attributes for axles that must endure demanding loads and harsh environments. All in all, steel round bars are a dependable and extensively employed material in diverse industries, including automotive, manufacturing, and construction, for axle production.
- Q:What are the different types of steel round bar surface treatments?
- There are several different types of surface treatments that can be applied to steel round bars to enhance their appearance, durability, and resistance to corrosion. Some of the most common surface treatments include: 1. Hot-dip galvanizing: This process involves immersing the steel round bar in a bath of molten zinc to create a protective zinc coating. This coating helps to prevent rust and corrosion, making it ideal for outdoor applications. 2. Electroplating: Electroplating involves coating the steel round bar with a layer of another metal, such as chrome or nickel. This not only enhances the appearance of the bar but also improves its resistance to corrosion. 3. Powder coating: In this process, a dry powder is applied to the surface of the steel round bar electrostatically and then cured under heat. This creates a hard, durable, and attractive finish that is resistant to chipping, scratching, and fading. 4. Passivation: Passivation is a chemical process that removes impurities from the surface of the steel round bar, leaving behind a clean and corrosion-resistant layer. This treatment is commonly used for stainless steel bars to enhance their resistance to rust. 5. Black oxide coating: Black oxide coating is a conversion coating that forms a thin layer of black iron oxide on the surface of the steel round bar. This treatment provides mild corrosion resistance and also gives the bar a sleek black appearance. 6. Shot blasting: Shot blasting involves propelling abrasive materials at high speeds onto the surface of the steel round bar to remove any impurities or scale. This treatment not only improves the appearance but also creates a roughened surface that promotes better adhesion of coatings. 7. Acid pickling: Acid pickling is a process that removes scale and impurities from the surface of the steel round bar by immersing it in an acid bath. This treatment leaves the surface clean and free from any contaminants. These are just a few examples of the various surface treatments available for steel round bars. The choice of treatment depends on factors such as the intended use of the bar, the desired appearance, and the level of corrosion resistance required.
- Q:What are the different types of defects that can occur in steel round bars?
- There are several types of defects that can occur in steel round bars. These defects can vary in their severity and impact on the overall quality and performance of the bars. Some of the common types of defects found in steel round bars include: 1. Surface defects: These defects are visible on the external surface of the bar and can include scratches, pits, and scaling. While surface defects may not affect the structural integrity of the bar, they can impact its aesthetic appeal and can potentially lead to corrosion if not properly addressed. 2. Internal defects: Internal defects are imperfections that occur within the body of the steel round bar. These defects can include voids, inclusions, and segregation. Internal defects can weaken the bar's mechanical properties and compromise its structural integrity. They can also lead to cracking or failure under stress. 3. Dimensional defects: Dimensional defects refer to variations in the size or shape of the steel round bar. These defects can occur during the manufacturing process and can include variations in diameter, length, or straightness. Dimensional defects can affect the bar's functionality and compatibility with other components in a structure or machinery. 4. Decarburization: Decarburization is a defect that occurs when the surface layer of the steel round bar loses carbon due to exposure to high temperatures during manufacturing or heat treatment processes. This defect can weaken the bar's hardness and strength, making it more susceptible to wear, fatigue, or failure. 5. Lamination: Lamination defects occur when there are layers or separations within the steel round bar. These defects can result from improper rolling or processing techniques. Lamination defects can reduce the bar's strength and ductility, making it prone to fracture or failure. 6. Incomplete heat treatment: Heat treatment is often used to enhance the mechanical properties of steel round bars. However, if the heat treatment process is not performed correctly or if there are inconsistencies in the cooling or reheating process, the bar may have incomplete or uneven heat treatment. This can result in variations in hardness, strength, or toughness along the length of the bar. It is important to note that the severity and impact of these defects can vary depending on the specific application and requirements of the steel round bar. Manufacturers and quality control teams employ various testing and inspection methods to detect and mitigate these defects, ensuring that the bars meet the necessary standards and specifications.
- Q:Can steel round bars be used in the power generation industry?
- Yes, steel round bars can be used in the power generation industry. Steel round bars are commonly used in the construction of power generation equipment and infrastructure due to their high strength and durability. They are often utilized in the fabrication of turbine shafts, generator rotors, gears, and other components that require high load carrying capacity and resistance to wear and fatigue. Additionally, steel round bars can be easily machined and welded, making them a versatile material for various applications within the power generation industry.
- Q:Can steel round bars be machined or forged?
- Steel round bars can indeed be machined or forged. Machining involves the utilization of cutting tools to extract material from the round bar, achieving the desired shape or dimension. This can be accomplished through a variety of methods, including turning, milling, drilling, or grinding. Machining is frequently employed in the creation of precise components or parts. On the flip side, forging entails heating the steel round bar and shaping it by applying compressive forces. This is typically accomplished using a hammer or press, deforming the material and creating the desired shape. Forging aids in the enhancement of the steel's mechanical properties, such as strength and toughness, by aligning the grain structure and eliminating any internal flaws. Both machining and forging techniques can be utilized to shape and manipulate steel round bars to meet specific requirements for various applications in industries like automotive, construction, energy, and manufacturing. The decision to employ machining or forging is contingent upon factors such as the complexity of the part, required tolerances, material properties, and the desired final product.
- Q:What are the advantages of using nickel-chromium-titanium alloy steel round bars?
- There are several advantages of using nickel-chromium-titanium alloy steel round bars: 1. High Strength: Nickel-chromium-titanium alloy steel round bars are known for their exceptional strength and durability. They have a high tensile strength, making them suitable for applications requiring heavy-duty materials. 2. Corrosion Resistance: These alloy steel round bars have excellent corrosion resistance properties due to the presence of nickel and chromium. This makes them ideal for use in environments where exposure to moisture, chemicals, or harsh conditions is common. 3. Heat Resistance: Nickel-chromium-titanium alloy steel round bars can withstand high temperatures without losing their mechanical properties. They exhibit good heat resistance, making them suitable for applications in industries such as aerospace, power generation, and automotive. 4. Fatigue Resistance: The unique composition of nickel-chromium-titanium alloy steel round bars provides excellent fatigue resistance, allowing them to withstand repeated stress and load cycles without deformation or failure. This makes them suitable for applications in high-stress environments. 5. Machinability: Despite their high strength and toughness, nickel-chromium-titanium alloy steel round bars are relatively easy to machine. They can be easily cut, drilled, or shaped, allowing for efficient and precise manufacturing processes. 6. Versatility: These alloy steel round bars have a wide range of applications due to their versatile properties. They can be used in industries such as construction, automotive, aerospace, marine, and many more. Their high strength and corrosion resistance make them suitable for various structural and load-bearing applications. Overall, nickel-chromium-titanium alloy steel round bars offer a combination of high strength, corrosion resistance, heat resistance, fatigue resistance, machinability, and versatility, making them a preferred choice for many industrial applications.
- Q:What is the difference between the heat treatment of cold drawn round steel and the heat treatment of wrought round steel?
- Solution treatment: the alloy can be dissolved in various phases, strengthening solid solution, improving toughness and corrosion resistance, eliminating stress and softening, so as to continue processing and forming.
- Q:What are the common sizes of steel round bars?
- The specific application and industry standards determine the varying common sizes of steel round bars. Depending on these factors, the sizes can range from 1/4 inch to 24 inches in diameter. The availability of these sizes is often in increments of 1/8 inch or 1/4 inch. It is worth noting that the sizes may differ based on the country or region. Moreover, metric sizes are also an option, with diameters generally ranging from 6mm to 600mm. The extensive selection of steel round bar sizes enables a wide range of applications across different industries.
1. Manufacturer Overview |
|
|---|---|
| Location | |
| Year Established | |
| Annual Output Value | |
| Main Markets | |
| Company Certifications | |
2. Manufacturer Certificates |
|
|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
|
|---|---|
| a)Trade Capacity | |
| Nearest Port | |
| Export Percentage | |
| No.of Employees in Trade Department | |
| Language Spoken: | |
| b)Factory Information | |
| Factory Size: | |
| No. of Production Lines | |
| Contract Manufacturing | |
| Product Price Range | |
Send your message to us
SCM440 SCM415 SAE4140 Steel Round Bar /AISI 4140 Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
Similar products
Hot products
Hot Searches
Related keywords
