• 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: What is the hardness range of special steel?
The hardness range of special steel typically varies between 20 and 70 HRC (Rockwell Hardness Scale).
Q: How is structural steel used in building construction?
Structural steel is a crucial material in building construction as it provides strength, durability, and flexibility to the overall structure. It is used to create the framework or skeleton of a building, including beams, columns, and trusses. These steel components support the weight of the building and distribute it evenly, ensuring stability and safety. Additionally, structural steel can be easily fabricated and assembled on-site, making it a cost-effective and efficient solution for various types of construction projects.
Q: How is wear-resistant stainless steel used in the production of cutting tools?
Wear-resistant stainless steel is used in the production of cutting tools due to its exceptional strength and resistance to wear and corrosion. This type of stainless steel is specifically designed to withstand high levels of stress and friction, making it ideal for tools that require cutting, shearing, or shaping. The wear resistance of stainless steel ensures that the cutting edges of these tools remain sharp and durable over extended periods of use, resulting in increased productivity and longer tool lifespan.
Q: What are the specific requirements for special steel used in the mining drill bit industry?
The specific requirements for special steel used in the mining drill bit industry include high strength and hardness to withstand the extreme conditions of drilling, excellent wear resistance to withstand abrasion from rocks and minerals, good toughness to resist breakage and cracking, and high heat resistance to withstand the heat generated during drilling. Additionally, the steel should have good machinability to facilitate the manufacturing process of the drill bits.
Q: What are the properties of high-temperature alloy steel?
High-temperature alloy steel possesses properties such as excellent heat resistance, high strength, good oxidation and corrosion resistance, and the ability to maintain mechanical properties at elevated temperatures. It is also known for its resistance to thermal fatigue, creep, and thermal shock, making it suitable for applications in high-temperature environments.
Q: What are the different methods of surface anodizing for special steel?
Surface anodizing for special steel can be achieved through various methods, each with its own advantages and applications. Below are some of the different techniques available: 1. Chromic Acid Anodizing: By immersing the steel in a chromic acid solution, a thin, hard, and corrosion-resistant oxide layer forms on its surface. This method is particularly effective for enhancing durability and aesthetic appeal, as it enables excellent adhesion for paint and other coatings. 2. Sulfuric Acid Anodizing: Widely utilized, this method involves immersing the steel in a sulfuric acid bath and applying a direct current to create an oxide layer on the surface. It offers exceptional corrosion resistance, increased hardness, and improved wear resistance. Additionally, it provides a solid foundation for achieving various colors and finishes by applying dyes or sealing. 3. Phosphoric Acid Anodizing: Primarily used for stainless steel, phosphoric acid anodizing entails immersing the steel in a phosphoric acid solution and applying a direct current. This process generates a protective oxide layer that enhances corrosion resistance and yields a uniform matte finish. Phosphoric acid anodizing is commonly employed in applications where aesthetics are not a priority. 4. Titanium Anodizing: This method involves anodizing steel using titanium electrodes, resulting in a thick oxide layer on the surface. The outcome is improved corrosion resistance, increased hardness, and enhanced wear resistance. Titanium anodizing finds significant usage in industries like aerospace, where robust and durable surface properties are vital. 5. Hard Anodizing: Distinguished by its specialized nature, hard anodizing produces a thick and highly durable oxide layer on the steel surface. It achieves this by employing higher voltage and lower temperature during the anodizing process. Consequently, it enhances hardness, wear resistance, and electrical insulation properties. Hard anodizing is particularly valuable for applications requiring superior abrasion resistance, such as parts exposed to heavy wear or friction. These are merely a few examples of the various methods available for surface anodizing of special steel. The selection of the most suitable technique depends on specific application requirements, desired properties, and the type of steel being treated. It is crucial to consult with industry experts to determine the optimal anodizing method for a particular steel application.
Q: What are the main advantages of using special steel in the power generation industry?
Special steel offers several advantages in the power generation industry. Firstly, its high strength and durability make it suitable for withstanding the demanding operating conditions and extreme temperatures experienced in power plants. This ensures reliable performance and minimizes the risk of equipment failure, thereby increasing the overall efficiency and safety of power generation processes. Additionally, special steel's resistance to corrosion and oxidation prevents degradation over time, enabling longer equipment lifespan and reducing maintenance costs. Furthermore, its excellent heat transfer properties facilitate efficient energy conversion, contributing to improved power generation efficiency and reduced environmental impact. Overall, the use of special steel in the power generation industry enhances operational reliability, longevity, and efficiency, making it a preferred choice for various critical components and infrastructure.
Q: How does special steel contribute to improving product efficiency in energy-intensive processes?
Special steel contributes to improving product efficiency in energy-intensive processes by providing enhanced strength, durability, and resistance to corrosion and wear. These properties allow for the development of more efficient machinery and equipment, reducing energy losses due to friction and wear. Additionally, special steel's high heat resistance enables the production of components that can withstand extreme temperatures, improving overall energy efficiency in processes such as high-temperature heat treatment or combustion. Moreover, its superior mechanical properties enable the construction of lighter and more compact designs, leading to reduced energy consumption during transportation and operation. Overall, special steel plays a vital role in optimizing energy-intensive processes by enhancing performance, longevity, and energy efficiency of products and equipment.
Q: What are the different types of bearing steel?
There are several different types of bearing steel, including carbon steel, stainless steel, and chrome steel.
Q: What are the different high-pressure grades of special steel?
There are several different high-pressure grades of special steel, each with its own unique properties and applications. Some of the commonly used high-pressure grades of special steel include: 1. 4130 steel: This grade of steel is known for its excellent strength, toughness, and heat resistance. It is often used in the manufacturing of high-pressure tubing and components for the oil and gas industry. 2. 4340 steel: This grade of steel is known for its exceptional strength and toughness. It is commonly used in the production of high-pressure valves, gears, and other critical components in industries like aerospace, defense, and automotive. 3. 316 stainless steel: This grade of stainless steel is highly corrosion-resistant and has excellent high-temperature properties. It is frequently used in high-pressure applications such as pipelines, heat exchangers, and pressure vessels in chemical and petrochemical industries. 4. 17-4 PH stainless steel: This grade of stainless steel offers a combination of high strength, excellent corrosion resistance, and good toughness. It is often used in high-pressure pump components, turbine blades, and other critical parts in industries like power generation and aerospace. 5. F22 steel: This grade of steel is a low-alloy steel with high-temperature strength and excellent creep resistance. It is commonly used in high-pressure and high-temperature applications such as boilers, pressure vessels, and piping systems in power plants and refineries. These are just a few examples of the high-pressure grades of special steel available. The selection of the appropriate grade depends on the specific requirements of the application, including factors like pressure, temperature, corrosion resistance, and mechanical properties.

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