Forged Steel AISI 4140 Alloy Steel Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Forged Steel AISI 4140 Alloy Steel Bars
Product Details:
1.Materail:Alloy Steel, Carbon Steel, Stainless Steel,etc
2.Length≤12m
3.OD≤Φ100~Φ1200
4.Ground and chrome plated
5.ISO9001:2008
6.competitive price
7.excellent service.
8.Strict quality control
9.Prompt delivery
Chemical Composition:
C | Si | Mn | Cr | Ni | Mo |
Equal or less than | |||||
0.37-0.45 | 0.17~0.37 | 0.90-1.20 | 0.90-1.20 | 0.20-0.30 | 0.20-0.30 |
Features:
1) Outer diameter: 15 - 80mm
2) Tube wall thickness: 1 - 8mm
3) Outer diameter: ± 0.01 mm
4) Inside diameter: ± 0.01mm
Delivery status: NBK(+N) BK(+C) BKW+(LC) BKS(SR)
Application:
AISI 4140 is a grade of steel an excellent material for such uses as gears, piston pins, crankshafts,and shafts.It is commonly used for a variety of applications in the oil and gas industry. Examples of applications for 4140 steel also include structural tubing,connection rods, stem assemblies, tool holders,tubes for transportation of pressurized gases.4140 Alloy Steel/SAE 4140 Steel Price is engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness. High creep strength. Repeated impact resistant capability.
Product Show:
- Q:How is wear-resistant tool steel used in the production of cutting tools?
- Wear-resistant tool steel is used in the production of cutting tools due to its exceptional hardness and resistance to wear and abrasion. This steel is specifically designed to maintain its sharpness and durability even when subjected to high temperatures and intense cutting forces. By using wear-resistant tool steel, cutting tools can effectively cut through various materials without losing their edge, resulting in improved efficiency and longer tool life.
- Q:What are the challenges in machining special steel alloys?
- Special steel alloys pose several challenges when it comes to machining, primarily due to their unique properties and characteristics. The first major challenge is their high hardness, which is often enhanced through heat treatment to improve mechanical properties. As a result, traditional cutting tools wear out quickly or become dull, making it difficult to machine these alloys. Additionally, the high hardness increases the risk of tool breakage, leading to frequent tool changes and increased production downtime. Another challenge is the presence of abrasive elements in special steel alloys, such as chromium, tungsten, or vanadium. These elements can cause rapid tool wear and degradation, resulting in reduced cutting tool life and higher machining costs. Moreover, if not managed properly during the machining process, these abrasive elements can lead to poor surface finish and dimensional accuracy. Furthermore, special steel alloys have low thermal conductivity, making it challenging to dissipate the heat generated during machining. This can result in high temperatures at the cutting zone, causing thermal expansion and distortion of the workpiece. The heat also affects the cutting tool, reducing its efficiency and lifespan. Effective heat management is crucial to prevent workpiece deformation and maintain dimensional accuracy. Moreover, these steel alloys are prone to work hardening, meaning they become harder and more difficult to cut as the machining process progresses. Work hardening leads to increased cutting forces, tool wear, and reduced surface finish. To overcome this challenge, machining parameters such as cutting speed, feed rate, and depth of cut must be carefully optimized to avoid excessive work hardening. In conclusion, machining special steel alloys involves overcoming challenges such as high hardness, abrasive elements, low thermal conductivity, and work hardening. To address these challenges effectively, manufacturers need to use specialized cutting tools, efficient cooling and lubrication systems, optimize machining parameters, and carefully select machining strategies. By doing so, accurate and efficient machining of special steel alloys can be achieved.
- Q:How is nitriding steel used in surface hardening processes?
- Nitriding steel is used in surface hardening processes by introducing nitrogen into the surface layer of the steel through a controlled heat treatment. This process enhances the hardness, wear resistance, and fatigue strength of the steel, making it more durable and suitable for applications that require high surface hardness and improved performance.
- Q:What are the different cutting tools used for machining special steel?
- Some different cutting tools used for machining special steel include carbide inserts, high-speed steel (HSS) end mills, diamond-coated tools, and ceramic cutting tools. These tools are designed to withstand the high hardness and heat resistance of special steels, ensuring precise and efficient cutting operations.
- Q:What are the main factors affecting the corrosion resistance of special steel?
- There are several main factors that can affect the corrosion resistance of special steel. Firstly, the composition of the steel plays a crucial role in determining its corrosion resistance. Special steels are typically alloyed with elements such as chromium, nickel, and molybdenum, which form a protective oxide layer on the surface of the steel. This layer acts as a barrier against corrosive substances, preventing them from reaching the underlying steel and causing corrosion. The higher the percentage of these alloying elements, the better the corrosion resistance of the steel. Secondly, the presence of impurities or contaminants in the steel can greatly affect its corrosion resistance. Any impurities or contaminants, such as sulfur or phosphorous, can compromise the protective oxide layer and make the steel more susceptible to corrosion. Therefore, the purity of the steel, as well as the manufacturing process used, is important in ensuring good corrosion resistance. Thirdly, the surface finish of the steel can also impact its corrosion resistance. A smooth and polished surface can help reduce the likelihood of corrosion, as it minimizes the areas where corrosive substances can accumulate and penetrate the steel. Additionally, surface treatments such as passivation or coating can further enhance the corrosion resistance of special steel. Furthermore, the environment in which the steel is exposed to is another critical factor. Different environments have varying levels of corrosive substances, such as moisture, acids, or salts, which can accelerate the corrosion process. For instance, marine environments with high salt content are particularly corrosive, requiring special steel grades that offer superior resistance to such conditions. Lastly, the temperature at which the steel operates can influence its corrosion resistance. Some special steels, such as stainless steel, exhibit excellent corrosion resistance at elevated temperatures, making them suitable for high-temperature applications where other materials may corrode. In summary, the main factors affecting the corrosion resistance of special steel include its composition, the presence of impurities, the surface finish, the environment it is exposed to, and the operating temperature. By considering these factors and selecting the appropriate steel grade, one can ensure optimal corrosion resistance for specific applications.
- Q:Can special steel be used in the plastic manufacturing industry?
- Yes, special steel can be used in the plastic manufacturing industry. Special steel is often used for making molds and dies, which are critical components in the plastic manufacturing process. These molds and dies need to be strong, durable, and able to withstand high temperatures and pressures. Special steel, such as tool steel or stainless steel, can provide the necessary properties to ensure the quality and longevity of plastic manufacturing equipment.
- Q:Is special steel recyclable?
- Yes, special steel is recyclable.
- Q:How does special steel perform in terms of wear resistance in abrasive environments?
- Special steel is known for its exceptional wear resistance in abrasive environments. The unique composition and heat treatment processes used in the production of special steel result in a higher hardness level compared to standard steels. This increased hardness makes special steel highly resistant to wear caused by abrasive particles or surfaces. In abrasive environments where friction and contact with hard materials are prevalent, special steel exhibits excellent performance. It can withstand the erosive effects of abrasive particles, such as sand, rocks, or metal fragments, without significant wear or damage. This durability makes special steel an ideal choice for various applications, including mining equipment, cutting tools, industrial machinery, and automotive components. Moreover, the wear resistance of special steel is not only limited to its surface but also extends throughout its structure. This means that even if the surface of the steel is scratched or abraded, the underlying material remains highly resistant to wear. This characteristic ensures a prolonged lifespan of components made from special steel, reducing maintenance costs and downtime. Furthermore, special steel can maintain its wear resistance even under high temperatures. This property is particularly advantageous in abrasive environments where friction-induced heat can accelerate wear. The ability of special steel to retain its hardness and wear resistance at elevated temperatures ensures its effectiveness in demanding applications like high-speed machining or hot forging. Overall, special steel outperforms standard steels in terms of wear resistance in abrasive environments. Its superior hardness, structural integrity, and temperature resistance make it an excellent choice for applications where durability and longevity are essential.
- Q:What are the different classifications of special steel?
- There are several classifications of special steel, including stainless steel, tool steel, high-speed steel, alloy steel, and carbon steel.
- Q:What are the main challenges in machining special steel?
- The main challenges in machining special steel include its high hardness and low machinability, which make it difficult to cut and shape. Special steels also have a tendency to work harden, causing tools to wear out quickly. Additionally, special steels often contain alloying elements that can lead to heat build-up during machining, requiring careful selection of cutting parameters and cooling methods.
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Forged Steel AISI 4140 Alloy Steel Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 500000 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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