Special Steel 40cr Steel Mould Steel Bar

Special Steel 40cr Steel Mould Steel Bar

Ref Price:: $300.00 - 500.00 / m.t.

Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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The details of our Steel

1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard

2. Produce processes: Smelt Iron -EAF smelt Billet - ESR smelt Billet -Hot rolled or forged get the steel round bar and plate

3. Heat treatment:

Normalized / Annealed / Quenched+Tempered

4. Quality assurance:

All order we can received Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.

Product information

Chemical Composition(GB)%

C	Si	Mn	Cr	Ni
0.37-0.44	0.17-0.37	0.50-0.80	0.80-1.10	≤0.30

Heat Treatment

Item	Temperature ℃	Hardness
Normalizing	850-870	179-229HB

Characterstics: Which has the best comprehensive mechanical properties

Applications

1.Can be used for drawing die and plastic mould
2.Can be used for middle and small punch

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Special Steel 40cr Steel Mould Steel Bar

Shipping

1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;

2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;

3. Customers specifying freight forwarders or negotiable shipping methods!

Delivery Time: 3-7 days for samples; 5-25 days for batch goods.

Payment Terms

1.Payment: T/T, L/C, Western Union, MoneyGram,PayPal; 30% deposits; 70% balance before delivery.

2.MOQ: 1pcs

3.Warranty : 3 years

4.Package Informations: 1) EXPORT, In 20 feet (GW 25 ton) or 40 feet Container (GW 25 ton)

2)as customer's requirement

Why choose us?

(1) The leading exporter in China special steel industry.

(2) Large stocks for various sizes, fast delivery date.

(3) Good business relationship with China famous factories.

(4) More than 7 years steel exporting experience.

(5) Good after-sales service guarantee.

Q:What are the main factors affecting the creep resistance of special steel?: The main factors affecting the creep resistance of special steel are the alloy composition, the microstructure, and the processing conditions. The specific combination of alloying elements and their concentrations significantly influence the material's ability to resist deformation under elevated temperatures and constant stress. Additionally, the microstructure, including grain size and distribution, plays a crucial role in determining the material's creep resistance. The processing conditions, such as heat treatment and thermal cycling, can further affect the creep performance by altering the material's microstructure and mechanical properties.

Q:How does special steel perform in chemical resistance applications?: Special steel performs exceptionally well in chemical resistance applications. It is specifically designed to withstand corrosion, oxidation, and other chemical reactions, making it highly resistant to various corrosive substances. Its unique composition and properties, such as high chromium and nickel content, provide excellent resistance to acids, alkalis, and other aggressive chemicals. This makes special steel an ideal choice for applications in industries such as chemical processing, oil and gas, pharmaceuticals, and food processing, where resistance to corrosion is crucial for long-term durability and safety.

Q:What is the impact of titanium in special steel alloys?: Special steel alloys greatly benefit from the inclusion of titanium, a remarkably versatile and valuable element. The addition of titanium to these alloys has a profound effect on their properties and performance. One of titanium's major impacts on special steel alloys is the enhancement of strength and durability. Titanium possesses a remarkable strength-to-weight ratio, meaning that even a small amount of titanium can significantly increase the strength of the steel alloy. This quality proves particularly advantageous in industries such as aerospace or automotive, where high strength and resistance to deformation or fatigue are essential. Moreover, titanium also contributes to the corrosion resistance of steel alloys. It forms a protective oxide layer on the steel's surface, effectively preventing or minimizing the detrimental effects of corrosion caused by exposure to various environmental factors like moisture, chemicals, or saltwater. This corrosion resistance becomes especially crucial in industries where steel is subjected to harsh conditions, such as marine or offshore applications. Another noteworthy impact of titanium in special steel alloys is its ability to enhance heat resistance. Titanium boasts a high melting point and exceptional thermal stability, making steel alloys containing titanium suitable for high-temperature applications. This characteristic holds particular significance in industries like power generation, where steel components must withstand extreme temperatures without compromising their structural integrity. Furthermore, titanium greatly improves the weldability of steel alloys. Acting as a deoxidizer, it reduces the presence of impurities and enhances the quality of welds. This attribute proves highly advantageous in manufacturing processes involving welding, as it guarantees strong and reliable joints. In summary, the influence of titanium on special steel alloys is multifaceted and highly advantageous. It bolsters the strength, durability, and corrosion resistance of steel, while simultaneously improving its heat resistance and weldability. These properties render titanium an invaluable element in the production of high-performance steel alloys for a wide array of industries.

Q:How does special steel contribute to the aerospace turbine industry?: Special steel plays a crucial role in the aerospace turbine industry by offering various advantages that cannot be found in other materials. Firstly, special steel is known for its exceptional strength and durability, making it ideal for withstanding the extreme conditions within aerospace turbines. The high temperatures, pressures, and rotational speeds experienced by turbine components demand a material that can withstand these harsh conditions without compromising performance or safety. Additionally, special steel exhibits excellent heat resistance and corrosion resistance properties, which are essential for the longevity of turbine components. The ability to resist oxidation and corrosion allows special steel to maintain its structural integrity and functionality over extended periods of time, reducing the need for frequent maintenance or replacement. Moreover, special steel offers excellent machinability and formability, enabling the production of complex and intricate turbine components. This allows for the creation of highly efficient and precisely engineered turbine blades, vanes, and other critical parts that are essential for the optimal performance of aerospace turbines. Furthermore, special steel provides the necessary characteristics for improved fuel efficiency in aerospace turbines. By utilizing high-strength special steel alloys, turbine manufacturers can design lighter and more aerodynamic components, reducing overall weight and drag. This, in turn, leads to increased fuel efficiency and lower emissions, contributing to a more sustainable and environmentally friendly aviation industry. In conclusion, special steel plays a pivotal role in the aerospace turbine industry by providing the necessary strength, durability, heat resistance, corrosion resistance, and machinability required for the efficient and reliable operation of turbine components. Its contribution to the industry extends to improved fuel efficiency, reduced maintenance needs, and enhanced overall performance, making it an indispensable material for the aerospace turbine industry.

Q:What are the common challenges in casting special steel?: Some common challenges in casting special steel include achieving uniformity in composition and microstructure, controlling the cooling rate to prevent cracking and distortion, minimizing the presence of impurities and inclusions, and ensuring proper solidification and shrinkage control. Additionally, the high melting points and reactivity of special steel alloys can pose challenges in terms of handling and maintaining the desired chemistry throughout the casting process.

Q:What are the different impact-resistant grades of special steel?: Impact-resistant grades of special steel refer to steel alloys that are specifically designed to withstand high impact and shock loads without fracturing or deforming. These grades of steel are commonly used in applications where resistance to impact and toughness are crucial, such as in construction, mining, automotive, and defense industries. There are several different impact-resistant grades of special steel available, each with its own unique characteristics and properties. Some of the commonly used impact-resistant grades include: 1. AR400: This grade of steel has a nominal hardness of 400 Brinell (HB) and is known for its exceptional resistance to abrasion and impact. It is often used in applications where high wear resistance is required, such as in bucket liners, crushers, and hoppers. 2. AR500: With a nominal hardness of 500 HB, AR500 steel offers even higher resistance to wear and impact compared to AR400. It is commonly used in applications involving heavy machinery, mining equipment, and armored vehicles. 3. AR600: This grade of steel has a nominal hardness of 600 HB, making it one of the toughest and most impact-resistant steels available. It is often used in applications where extreme wear resistance and durability are essential, such as in chutes, conveyors, and ballistic protection. 4. T-1: T-1 steel is a high-strength, low-alloy (HSLA) steel that offers excellent impact resistance and toughness. It is typically used in applications where high strength and toughness are required, such as in structural components, heavy equipment, and offshore drilling rigs. 5. QT or Quenched and Tempered Steels: These steels are specifically heat-treated to enhance their toughness and impact resistance. They are commonly used in applications that require a combination of high strength, toughness, and impact resistance, such as in gears, shafts, and armor plates. It is important to note that the specific impact resistance of a steel grade depends not only on its composition but also on factors such as heat treatment, fabrication techniques, and design considerations. Therefore, it is crucial to consult with steel manufacturers or experts to determine the most suitable impact-resistant grade for a particular application.

Q:What are the main applications of special steel in the pharmaceutical industry?: Special steel is widely used in the pharmaceutical industry for various applications. One of the main applications is in the manufacturing of high-quality equipment such as tanks, vessels, and pipes that are required for the storage and transportation of pharmaceutical products. Special steel is preferred due to its corrosion resistance, durability, and ability to maintain product purity. Additionally, special steel is utilized in the production of precision tools and instruments used in pharmaceutical research, development, and quality control processes. Moreover, special steel is essential in the construction of cleanrooms and controlled environments, ensuring the hygienic and sterile conditions required in pharmaceutical manufacturing.

Q:What are the different methods of preventing hydrogen embrittlement in special steel?: There are several methods that can be employed to prevent hydrogen embrittlement in special steel. 1. Proper material selection: Choosing the right type of steel with a lower susceptibility to hydrogen embrittlement can be an effective preventive measure. Steels with high strength and hardness are generally more susceptible to embrittlement, so opting for steels with lower alloy content or different composition can be beneficial. 2. Controlled heat treatment: Proper heat treatment processes can help reduce the risk of hydrogen embrittlement. Tempering and annealing at specific temperatures can relieve internal stresses and minimize the impact of hydrogen absorption. 3. Hydrogen mitigation techniques: Various techniques can be utilized to prevent or reduce the amount of hydrogen in the steel. These include preheating the steel before exposure to hydrogen, utilizing desorption methods such as vacuum annealing to remove trapped hydrogen, and employing hydrogen scavenger coatings or inhibitors that capture or neutralize the hydrogen. 4. Stress reduction: High levels of stress can increase the likelihood of hydrogen embrittlement. Implementing stress relief techniques such as shot peening or stress-relieving heat treatments can help reduce the potential for embrittlement. 5. Proper handling and storage: Hydrogen embrittlement can also occur during the manufacturing, handling, or storage stages. It is essential to ensure that the steel is protected from exposure to hydrogen-rich environments, such as during cleaning or pickling processes. Proper packaging and storage techniques, including the use of dry environments or protective coatings, can also help prevent hydrogen absorption. 6. Maintenance and inspection: Regular inspection and maintenance of the steel components can help identify any signs of hydrogen embrittlement at an early stage. This allows for timely repairs or replacements to prevent catastrophic failures. It is important to note that the specific method or combination of methods employed to prevent hydrogen embrittlement may vary depending on the specific application, the type of steel, and the environmental conditions it will be exposed to. Therefore, it is crucial to consult with experts and adhere to industry standards and guidelines to ensure effective prevention of hydrogen embrittlement in special steel.

Q:What are the effects of different heat treatment processes on special steel?: Different heat treatment processes can have significant effects on the properties and performance of special steel. These processes are designed to alter the microstructure of the steel, thereby influencing its hardness, strength, toughness, and other mechanical properties. One commonly used heat treatment process is annealing, which involves heating the steel to a specific temperature and then slowly cooling it down. Annealing helps to relieve internal stresses, improve machinability, and enhance the ductility of the steel. It also refines the grain structure, making the steel more uniform and reducing the risk of cracks or other defects. Another heat treatment process is quenching, where the steel is heated to a high temperature and then rapidly cooled by immersing it in a quenching medium such as oil or water. This process results in the formation of a hardened microstructure, increasing the steel's hardness and wear resistance. However, quenching can also make the steel brittle, so it is often followed by a tempering process. Tempering involves reheating the quenched steel to a lower temperature and holding it there for a specific duration. This process helps to reduce the brittleness caused by quenching and improve the steel's toughness and ductility. The resulting microstructure is a balance between hardness and toughness, making the steel suitable for applications that require both strength and impact resistance. Other heat treatment processes, such as normalizing and stress relieving, can also be used to achieve specific properties in special steel. Normalizing involves heating the steel to a temperature above its critical point and then allowing it to cool in still air. This process refines the grain structure and improves the steel's strength and machinability. Stress relieving, on the other hand, aims to remove residual stresses from the steel by heating it to a temperature below its critical point and then slowly cooling it. In summary, the effects of different heat treatment processes on special steel are manifold. These processes can modify the steel's microstructure, resulting in changes in hardness, strength, toughness, and other mechanical properties. By selecting the appropriate heat treatment process, manufacturers can tailor the steel's characteristics to suit specific applications, ensuring optimal performance and longevity.

Q:How does special steel contribute to the manufacturing of cutting blades?: Special steel plays a crucial role in the manufacturing of cutting blades. Cutting blades are required to have exceptional strength, durability, and sharpness to efficiently perform their function. Special steel, also known as tool steel, possesses unique properties that make it an ideal material for manufacturing cutting blades. Firstly, special steel has excellent hardness, which enables cutting blades to maintain their sharpness for an extended period. Cutting blades made from special steel can withstand the wear and tear that occurs during cutting operations. This hardness allows the blades to retain their cutting edge, resulting in a longer lifespan and improved cutting performance. Moreover, special steel offers exceptional toughness, which is crucial for cutting blades. During cutting operations, blades are subjected to high impact and stress. Special steel's toughness helps absorb these forces and prevents the blades from breaking or chipping. This ensures that the cutting blades can withstand demanding cutting tasks without compromising their performance. Additionally, special steel provides excellent corrosion resistance. Cutting blades often come into contact with various materials, including moisture and chemicals. The corrosion resistance of special steel prevents the blades from rusting or corroding, ensuring their longevity and reducing the need for frequent replacements. Furthermore, special steel offers good machinability, making it easier to shape and form into the desired blade design. This enhances the manufacturing process by enabling the production of cutting blades with complex shapes and intricate features. The machinability of special steel allows manufacturers to create blades with precise cutting edges and optimal geometries, resulting in superior cutting performance. In conclusion, special steel contributes significantly to the manufacturing of cutting blades by providing hardness, toughness, corrosion resistance, and good machinability. These properties ensure that cutting blades made from special steel are long-lasting, durable, and capable of delivering exceptional cutting performance in various applications.

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