• Forged Steel AISI 4140 Alloy Steel Bars System 1
  • Forged Steel AISI 4140 Alloy Steel Bars System 2
  • Forged Steel AISI 4140 Alloy Steel Bars System 3
Forged Steel AISI 4140 Alloy Steel Bars

Forged Steel AISI 4140 Alloy Steel Bars

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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:

 

Forged Steel AISI 4140 Alloy Steel Bars

Forged Steel AISI 4140 Alloy Steel Bars

Forged Steel AISI 4140 Alloy Steel Bars

 

Q: How is high-temperature tool steel used in the production of hot work tools?
High-temperature tool steel is used in the production of hot work tools due to its excellent heat resistance and ability to maintain hardness at elevated temperatures. This type of steel can withstand extreme temperatures without losing its strength, making it ideal for applications such as forging, die-casting, and extrusion. By using high-temperature tool steel, hot work tools can efficiently and reliably perform under intense heat conditions, ensuring optimal productivity and durability in various industrial processes.
Q: What are the applications of special steel in the railway industry?
Special steel has several important applications in the railway industry. It is commonly used for manufacturing railway tracks, as it possesses high strength and durability, ensuring the tracks can withstand heavy loads and frequent use. Additionally, special steel is employed in the construction of railway bridges and tunnels, offering excellent resistance to corrosion and extreme weather conditions. Moreover, special steel is utilized in the production of railway components such as wheels, axles, and couplers, ensuring optimal performance, safety, and longevity of the railway system.
Q: What are the emerging trends in the special steel industry?
Some of the emerging trends in the special steel industry include the growing demand for lightweight and high-strength steel in the automotive and aerospace sectors, the increasing adoption of advanced manufacturing technologies such as additive manufacturing, and the focus on sustainability and eco-friendly practices in steel production. Additionally, there is a rising emphasis on research and development to develop innovative alloys and steel grades that offer superior performance and durability for various applications.
Q: How is special steel used in the production of cutting blades?
Special steel is used in the production of cutting blades because it possesses unique properties that make it highly durable, resistant to wear and tear, and capable of maintaining a sharp edge for longer periods of time. This type of steel is often chosen for its high hardness, toughness, and corrosion resistance, making it ideal for manufacturing cutting blades that can withstand intense cutting forces and harsh working environments.
Q: How does special steel contribute to the pharmaceutical industry?
Special steel plays a crucial role in the pharmaceutical industry by offering exceptional strength, corrosion resistance, and durability. It is used in the manufacturing of various equipment and components such as storage tanks, reactors, piping systems, and precision instruments. The unique properties of special steel ensure the integrity and purity of pharmaceutical products, prevent contamination, and enable efficient and safe production processes.
Q: What are the requirements for special steel used in military applications?
The requirements for special steel used in military applications typically include high strength, toughness, and durability to withstand extreme conditions and heavy impact. It should have excellent resistance to corrosion, wear, and fatigue to ensure long-term performance. The steel must also possess good weldability and machinability for ease of fabrication and maintenance. Additionally, it should meet stringent specifications and standards set by military organizations to ensure reliability, safety, and compatibility with other materials and systems.
Q: How is nitriding steel used in the manufacturing of engine components?
Nitriding steel is commonly used in the manufacturing of engine components due to its ability to enhance their performance and durability. The process of nitriding involves diffusing nitrogen into the surface of the steel, forming a hard and wear-resistant layer. This improves the component's resistance to corrosion, fatigue, and high temperatures, ultimately extending its lifespan and enhancing its overall performance in engine applications.
Q: How does special steel perform in high-temperature oxidation conditions?
Special steel, also known as heat-resistant or high-temperature steel, is specifically designed to perform exceptionally well in high-temperature oxidation conditions. Oxidation, a chemical reaction between the metal and oxygen at elevated temperatures, can lead to the formation of metal oxides and ultimately result in degradation or failure of the material. However, special steel is formulated with alloying elements that provide superior resistance to oxidation. These alloying elements, such as chromium, aluminum, and silicon, form a protective layer of oxides on the surface of the steel when exposed to high temperatures. This layer acts as a barrier, preventing further oxidation of the underlying metal. Additionally, the alloying elements can enhance the formation of stable and adherent oxide scales, which further improve the steel's resistance to oxidation. Special steel's excellent performance in high-temperature oxidation conditions can be attributed to several factors. Firstly, the alloying elements in the steel composition ensure the formation of a protective oxide layer, which acts as a shield against further oxidation. Secondly, the steel's microstructure is specifically designed to maintain stability and retain its mechanical properties even at elevated temperatures. Furthermore, special steel undergoes rigorous heat treatment processes to enhance its high-temperature oxidation resistance. Heat treatment methods such as annealing, quenching, and tempering optimize the steel's microstructure and eliminate impurities, ensuring its optimal performance in extreme conditions. Overall, special steel demonstrates exceptional resistance to high-temperature oxidation conditions due to its carefully selected alloying elements, tailored microstructure, and optimized heat treatment processes. It provides a reliable and durable solution for various industries that require materials to withstand severe oxidation environments, ensuring optimal performance and longevity in these challenging conditions.
Q: How does special steel contribute to the formability of products?
Special steel, which is also known as alloy steel, plays a vital role in enhancing the formability of products. Various industries, including automotive, aerospace, and construction, find special steel to be an ideal choice due to its unique properties and composition. One way in which special steel contributes to product formability is through its exceptional strength and durability. Engineered to have a higher tensile strength compared to regular steel, special steel can undergo significant deformation without breaking or cracking. This characteristic allows manufacturers to shape and mold the steel into intricate and complex designs, resulting in products with improved formability. Moreover, special steel offers excellent resistance to deformation, specifically elastic deformation. This means that even after enduring significant stress or strain, the steel can return to its original shape, minimizing the risk of permanent deformation. Such a feature proves advantageous in applications where products need to withstand repeated bending or shaping without compromising their structural integrity. Additionally, special steel often contains specific alloying elements like chromium, nickel, or molybdenum, which further enhance its formability. These alloying elements improve the steel's ability to be easily formed and manipulated, making it more ductile and minimizing the chances of cracking during the forming process. Furthermore, special steel can undergo heat treatment to modify its mechanical properties and enhance its formability. Annealing or quenching are some of the heat treatment processes that can make the steel more malleable, allowing for easy shaping and forming into desired products. In conclusion, special steel plays a critical role in enhancing product formability due to its exceptional strength, resistance to deformation, inclusion of alloying elements, and heat-treatability. These properties enable manufacturers to create products with intricate designs and complex shapes, fulfilling the diverse needs of various industries while ensuring durability and structural integrity.
Q: What industries commonly use special steel?
Special steel, also known as alloy steel, is widely used in various industries due to its exceptional properties and performance characteristics. Some of the industries that commonly utilize special steel include: 1. Automotive Industry: Special steel is extensively used in the manufacturing of components for automobiles, such as crankshafts, camshafts, gears, and axles. Its high strength, durability, and excellent heat resistance make it ideal for withstanding the demanding conditions of the automotive sector. 2. Aerospace Industry: Special steel finds applications in the aerospace industry for manufacturing critical components like turbine blades, landing gear, and structural parts. Its ability to withstand high temperatures and maintain structural integrity under extreme conditions is crucial for aerospace applications. 3. Oil and Gas Industry: Special steel is vital in the oil and gas sector for applications like drill bits, valves, pipelines, and offshore platform components. Its corrosion resistance, high strength, and resistance to extreme temperatures and pressures make it suitable for these demanding environments. 4. Construction Industry: In the construction industry, special steel is used in the fabrication of structural components, reinforcement bars, and high-rise building frameworks. Its high tensile strength, toughness, and resistance to wear and tear ensure the safety and stability of the structures. 5. Tool and Die Industry: Special steel is widely used in the tool and die sector for manufacturing cutting tools, molds, dies, and various machine components. Its ability to retain sharpness, resist deformation, and withstand high pressures and temperatures make it indispensable for these applications. 6. Energy Industry: Special steel is extensively used in power generation plants, including nuclear, thermal, and renewable energy facilities. It is used for manufacturing turbines, boilers, heat exchangers, and other critical components due to its high temperature and corrosion resistance properties. 7. Medical Industry: Special steel plays a crucial role in the medical field, especially in surgical instruments and implants. Its biocompatibility, strength, and resistance to corrosion make it suitable for applications like joint replacements, dental instruments, and surgical cutting tools. 8. Manufacturing Industry: Special steel is widely used in various manufacturing processes, such as machining, forging, and casting. It is employed in the production of machine tools, industrial equipment, and heavy machinery components due to its high strength, toughness, and versatility. These are just a few examples of the industries that commonly utilize special steel. Its unique properties make it an essential material for a wide range of applications, where strength, durability, heat resistance, and corrosion resistance are critical factors.

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