• DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality System 1
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality System 2
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality System 3
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality System 4
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality System 5
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality System 6
DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
3 m.t.
Supply Capability:
10000 m.t./month

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Specification

Type:
Alloy Steel
Shape:
Steel Round Bar

DIN1.7225/SAE4140 Alloy Steel Round Bar Price

Name

DIN1.7225/SAE4140 Steel Round Bar

Shape

Round Bar/Square Bar/Flat Bar/Plate/Wire

Standard

GB/ASTM/SAE/AISI/DIN/JIS/EN/BS

Surface Treatment:

Black/Peeling/Polished/Machined  

Delivery Condition:

Hot Rolled or Forged/Peeled or Black Surface

Test

SGS/UT 100% Elements Testing

Certificate:

ISO/Mill Certificate

Service:

24 hours online service /

more than 20 years trading and manufacture 

Quality Assurance:

the third party inspection, such as SGS, BV, TUV…etc. is acceptable

Packaging Details:

seaworthy packaging or as per customer's packing instruction

 

Chemical Composition

C

Si

Mn

Cr

 Mo

P

S

0.38-0.43

0.40max

0.60-0.90

0.90-1.20

0.15-0.30

≤0.035

≤0.035

 

Application

4140 Alloy Steel is engineering steel supplied in quenched and tempered conditions.

Very good machinability.

High toughness.

High creep strength.

Repeated impact resistant capability.

 

Packaging & Delivery

Packaging Detail

Sea worthy packing /as per customer's packing instruction

Delivery Detail

15 ~ 40 days after receiving the deposit

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality

 

Product Show

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality

 

Workshop

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with High Quality

FAQ

Are you a trading company or manufacturer?

Manufacturer

What’s the MOQ?

3 metric ton

What’s your delivery time? 

15-35 days after downpayment received

Do you Accept OEM service?

Yes

what’s your delivery terms?

FOB/CFR/CIF

What's the Payment Terms?

30% as deposit,70% before shipment by T/T

Western Union acceptable for small amount.

L/C acceptable for large amount.

Scrow ,Paybal,Alipay are also ok 

Why  choose  us?

Chose happens because of quality, then price, We can give you both. 

Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.

What's your available port of Shipment?

Main Port, China

What’s your featured  services?

Our service formula: good quality+ good price+ good service=customer's trust

Where are your Market?

Covering more than 160 countries in the world

 

Q: What are the main characteristics of heat-resistant steel forgings?
Heat-resistant steel forgings have several main characteristics. Firstly, they possess superior thermal stability, enabling them to maintain their strength and mechanical properties even at high temperatures. This is crucial in applications where the forgings are subjected to intense heat and thermal cycling, such as in jet engines or industrial furnaces. Secondly, they exhibit excellent oxidation and corrosion resistance, ensuring longevity and reliability in harsh environments. Additionally, heat-resistant steel forgings typically have high creep resistance, allowing them to withstand prolonged exposure to elevated temperatures without deformation. They are also known for their exceptional toughness and resistance to thermal fatigue, making them highly durable under extreme conditions. Overall, these characteristics make heat-resistant steel forgings essential components in industries requiring materials capable of withstanding demanding thermal conditions.
Q: How does special steel perform in extreme temperature conditions?
Special steel is designed to perform exceptionally well in extreme temperature conditions. It has enhanced heat resistance and can withstand high temperatures without losing its strength or structural integrity. Additionally, special steel exhibits excellent thermal conductivity, allowing it to efficiently transfer heat away from critical components. Overall, special steel is highly reliable and durable in extreme temperature environments.
Q: How does special steel contribute to the efficiency of automotive engines?
Special steel plays a vital role in enhancing the efficiency of automotive engines in various ways. To begin with, it provides exceptional strength and durability, allowing for the production of lighter and more compact engine components. This reduction in weight contributes to increased fuel efficiency, as the engine requires less effort to propel the vehicle, resulting in improved performance and reduced emissions. Moreover, special steel possesses excellent properties of heat resistance and thermal conductivity. These characteristics are particularly important in automotive engines, which generate significant heat during operation. By incorporating special steel into critical engine parts such as cylinder heads, valves, and pistons, manufacturers can effectively manage the generated heat, preventing engine overheating and ensuring optimal performance. Additionally, special steel exhibits high resistance to wear, corrosion, and fatigue, making it an ideal choice for components exposed to high levels of stress and friction in automotive engines. This enhanced durability translates into a longer engine lifespan, reduced maintenance costs, and improved reliability. Furthermore, the use of special steel allows for the production of more precise and intricate engine designs. Its superior machinability enables the creation of complex shapes and structures, optimizing airflow and combustion within the engine. This leads to improved fuel combustion efficiency, power output, and overall engine performance. In conclusion, the contribution of special steel to the efficiency of automotive engines cannot be underestimated. Its properties of strength, heat resistance, durability, and machinability enable the production of lighter, more durable, and high-performing engine components. By integrating special steel into automotive engines, manufacturers can achieve enhanced fuel efficiency, reduced emissions, longer engine lifespan, and improved overall performance.
Q: How does electrical steel minimize energy losses in electrical devices?
Electrical steel minimizes energy losses in electrical devices due to its unique magnetic properties. It is specifically designed to have low electrical resistance and high magnetic permeability, allowing it to efficiently conduct and transfer electrical energy while reducing heat generation and energy wastage. This enables electrical devices, such as transformers and motors, to operate more efficiently and effectively, thus minimizing energy losses.
Q: Is special steel suitable for manufacturing cutting tools?
Cutting tools benefit greatly from the use of special steel, which is steel that has been specifically designed and processed to possess exceptional properties. This type of steel is known for its high hardness, toughness, and wear resistance. These characteristics make it an ideal choice for cutting tools, as they allow the tools to withstand the high stresses and pressures involved in cutting operations. The hardness of special steel ensures that cutting tools can maintain their sharpness for a longer period of time, resulting in improved cutting performance and efficiency. Furthermore, the toughness of special steel enables cutting tools to resist chipping, cracking, or breaking during use, enhancing their durability and longevity. In addition, the wear resistance of special steel ensures that cutting tools can endure the abrasive forces encountered during cutting operations without significant loss of material or deterioration. This helps to maintain the accuracy and precision of the cutting tools over time. Furthermore, special steel can be customized to meet specific requirements for different cutting applications. For instance, high-speed steel (HSS) is a type of special steel that is particularly suitable for cutting tools used in high-speed machining operations. HSS possesses excellent heat resistance and can retain its hardness even at elevated temperatures. In summary, special steel is highly suitable for manufacturing cutting tools due to its hardness, toughness, wear resistance, and ability to be tailored for specific cutting applications. These properties allow cutting tools to deliver optimal cutting performance, durability, and accuracy.
Q: What are the challenges in forming special steel?
Several challenges arise when forming special steel due to its unique characteristics and properties. Some of the primary difficulties include: 1. The high melting point of special steels necessitates the use of specialized equipment and processes for heating and shaping the material. This can result in increased energy consumption and costs. 2. Special steels typically contain various alloyed elements to enhance their properties, such as strength, hardness, and corrosion resistance. However, controlling the alloy composition precisely can be challenging, as even minor variations can have a significant impact on the material's properties. 3. Certain special steels, such as tool steels, have a high carbon content to improve hardness and wear resistance. Unfortunately, this high carbon content makes the material more susceptible to cracking during forming processes like forging or rolling. Great care must be taken to prevent cracks and achieve the desired shape. 4. Special steels often require specific heat treatment processes, like quenching and tempering, to achieve the desired mechanical properties. These processes can be complex and require precise control of temperature, time, and cooling rates. Improper heat treatment can result in poor material performance or even structural failure. 5. Achieving the necessary surface finish and dimensional accuracy is crucial in applications where special steels are used, such as the aerospace or automotive industry. This can be challenging during forming operations, necessitating advanced tooling and precision machining techniques. 6. Forming special steels may require specialized equipment and expertise, such as high-pressure hydraulic presses, induction heating equipment, or vacuum furnaces. These specialized tools and processes add complexity and costs to the manufacturing process. Despite these challenges, forming special steels is vital in various industries that require their unique properties. Manufacturers continually invest in research and development to overcome these challenges and enhance the forming processes of special steels.
Q: What are the different methods for electroplating special steel?
There are several methods for electroplating special steel, depending on the specific requirements and desired outcome. Here are some of the different methods commonly used in electroplating special steel: 1. Electroless Nickel Plating: This method involves the use of a chemical reaction to deposit a layer of nickel onto the steel surface. It is a popular choice for achieving uniform and corrosion-resistant coatings on special steel. 2. Zinc Plating: Zinc plating is widely used to provide a protective layer on special steel. It involves the immersion of the steel in a zinc solution and passing an electric current to facilitate the deposition of zinc onto the surface. 3. Copper Plating: Copper plating is used to enhance the conductivity and corrosion resistance of special steel. It involves immersing the steel in a copper sulfate solution and applying an electric current to deposit a layer of copper onto the surface. 4. Chromium Plating: Chromium plating is a common method used to provide a decorative, corrosion-resistant, and hard-wearing surface on special steel. It involves the immersion of the steel in a chromium bath and the application of an electric current to deposit a layer of chromium onto the surface. 5. Electroplating with Precious Metals: Special steel can also be electroplated with precious metals such as gold, silver, or platinum for decorative or functional purposes. These coatings are often used to enhance the appearance, conductivity, or corrosion resistance of the steel. 6. Electroplating with Alloy Coatings: For specific applications, special steel can be electroplated with alloy coatings, such as tin-zinc or tin-lead, to provide unique properties such as enhanced solderability or improved wear resistance. It is important to note that the choice of electroplating method depends on factors such as the desired properties, the intended application, and the specific requirements of the special steel being plated. Each method has its advantages and limitations, and it is recommended to consult with experts in the field to determine the most suitable method for electroplating special steel in a given scenario.
Q: What are the properties of special steel?
Special steel has several unique properties that make it highly desirable in various industries. Firstly, it possesses exceptional strength and durability, allowing it to withstand high levels of stress, pressure, and temperature. This property makes it suitable for applications in construction, automotive, and aerospace sectors where strength and reliability are crucial. Additionally, special steel offers excellent corrosion resistance, ensuring its longevity even in harsh environments. It is also known for its excellent machinability, weldability, and formability, making it easy to work with and shape into desired forms. Furthermore, special steel exhibits good magnetic properties, making it ideal for use in electrical components and magnetic devices. Overall, the properties of special steel make it a versatile material that can be customized for specific applications, offering exceptional performance and reliability.
Q: How does special steel contribute to the packaging industry?
Special steel plays a crucial role in the packaging industry by providing durable and corrosion-resistant materials for manufacturing packaging equipment. It enables the production of high-quality, sturdy containers, cans, and closures that ensure product safety, prevent leakage, and maintain freshness. Additionally, special steel's strength and flexibility make it suitable for creating innovative packaging designs, such as lightweight yet robust materials, enhancing product appeal and convenience for consumers.
Q: How does special steel contribute to the manufacturing of shafts and axles?
Due to its unique properties and characteristics, special steel plays a vital role in the production of shafts and axles. Specifically engineered for superior strength, durability, and resistance to wear and tear, special steel is an ideal material for these crucial components in the automotive and machinery sectors. One major advantage of special steel is its high tensile strength. In heavy-duty applications where shafts and axles experience significant loads and torque, special steel's exceptional strength allows them to withstand these forces without deformation, ensuring optimal performance and longevity. Additionally, special steel offers excellent fatigue resistance, which is essential for parts like shafts and axles that undergo cyclic loading. Fatigue failure is a common issue, especially in high-speed rotating applications. By resisting fatigue, special steel helps prevent fractures and extends the lifespan of shafts and axles, reducing downtime and maintenance costs. Another critical property of special steel is its high hardness. This hardness provides superior wear resistance, enabling shafts and axles to withstand the abrasive forces they encounter during operation. By reducing wear and minimizing surface damage, special steel ensures the continued efficiency and reliability of these components. Furthermore, special steel can undergo heat treatment to further enhance its mechanical properties. Through processes like quenching and tempering, manufacturers can selectively modify the steel's hardness, toughness, and strength to suit specific shaft and axle applications. This flexibility allows them to tailor the material properties to meet the required specifications and performance standards. In conclusion, special steel significantly contributes to the manufacturing of shafts and axles by providing exceptional strength, fatigue resistance, hardness, and wear resistance. These properties ensure the durability, reliability, and optimal performance of these critical components in various industries, ultimately leading to safer and more efficient machinery and vehicles.

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