Special Steel 7CrSiMnMoV Mould Steel Alloy Steel

Special Steel 7CrSiMnMoV Mould Steel Alloy Steel System 1

Special Steel 7CrSiMnMoV Mould Steel Alloy Steel

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

C	Si	Mn	Cr	Mo	V	S	P
0.65-0.75	0.85-1.15	0.65-1.05	0.90-1.20	0.20-0.50	0.15-0.30	≤0.30	≤0.30

Forged flat steel	20-280mm×400mm×L

Item	Temperature℃	Hardness
Anneal	840-860	≤235HB
Quenching	840-1000	60-62HRC
Tempering	180-200	58-62HRC

1.High strengh and hardness
2.Good toughness and hardening ability with wide quenching range
3.Quench-hardening obtained by air cold with hardness of 58-62HRC

Product Show:

.jpg

Workshop Show:

Special Steel 7CrSiMnMoV Mould Steel Alloy Steel

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

4, Trading Terms?

EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

WE provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Q: How does cryogenic treatment affect the toughness of special steel?: The toughness of special steel is greatly affected by cryogenic treatment, which involves subjecting the steel to extremely low temperatures for an extended period. This process has the ability to transform the microstructure of the steel, resulting in improved mechanical properties, including increased toughness. Throughout cryogenic treatment, the steel goes through a process known as martensitic transformation, in which the carbon atoms within the steel lattice rearrange themselves. This transformation leads to the development of additional carbides, which strengthen the steel and enhance its toughness. These carbides act as barriers, hindering crack propagation and improving the steel's resistance to fracture. Additionally, cryogenic treatment reduces the presence of retained austenite, which is a metastable phase in steel that can have detrimental effects on its mechanical properties. The transformation of retained austenite into martensite during cryogenic treatment further enhances the toughness of the steel. The increased toughness achieved through cryogenic treatment makes special steel suitable for various applications that require high strength and resistance to fracture. It improves the steel's ability to endure heavy loads, impacts, and harsh environments. Moreover, cryogenic treatment can enhance the wear resistance and dimensional stability of special steel. It is important to acknowledge that cryogenic treatment alone is not a complete solution for optimizing the toughness of special steel. Other factors, such as the initial composition and heat treatment of the steel, also play a vital role in determining its overall mechanical properties. Therefore, cryogenic treatment should be considered as a complementary process in order to optimize the toughness of special steel.

Q: How does special steel perform in corrosive chemical environments?: Special steel, also known as stainless steel, performs exceptionally well in corrosive chemical environments. This is primarily due to its unique composition which includes a high amount of chromium, typically above 10.5%. Chromium forms a passive oxide layer on the surface of the steel, which acts as a protective barrier against corrosion. The passive oxide layer is highly resistant to attack from various corrosive substances, including acids, alkalis, and salts. This makes special steel highly reliable and durable in chemical environments where corrosion is a significant concern. Additionally, special steel exhibits excellent resistance to pitting corrosion, which is a localized form of corrosion that can occur in aggressive chemical environments. This resistance is attributed to the presence of other alloying elements such as nickel and molybdenum, which further enhance the steel's corrosion resistance properties. Furthermore, special steel offers excellent strength and toughness, making it suitable for various industrial applications, including chemical processing plants, oil and gas refineries, and pharmaceutical industries. It can withstand high temperatures and pressures, ensuring long-term performance and reliability even in harsh chemical environments. However, it is essential to note that the performance of special steel in corrosive chemical environments can vary depending on the specific grade and composition of the steel. It is crucial to select the appropriate grade of special steel that is specifically designed for the intended chemical environment to ensure optimal performance and longevity.

Q: How does special steel perform in high-temperature applications?: Special steel performs exceptionally well in high-temperature applications. It has excellent heat resistance and can withstand extreme heat without losing its strength or shape. This makes it highly suitable for use in industries such as aerospace, power generation, and automotive, where it is exposed to high temperatures and thermal stress. Additionally, special steel exhibits good oxidation and corrosion resistance, ensuring its durability and reliability in these demanding conditions.

Q: How is special steel used in the defense industry?: Special steel is used in the defense industry for various applications such as manufacturing armored vehicles, aircraft carriers, submarines, and military-grade firearms. Its exceptional strength, durability, and resistance to high temperatures make it ideal for constructing critical components and structures that require enhanced protection and performance in combat situations.

Q: What are the mechanical properties of special steel?: Special steel generally refers to high-performance alloys that have enhanced mechanical properties compared to conventional steels. These properties can vary depending on the specific composition and heat treatment of the special steel. However, some common mechanical properties of special steel include high strength, excellent toughness, improved wear resistance, and good corrosion resistance. Special steel is often used in applications requiring exceptional performance, such as in aerospace, automotive, and tooling industries.

Q: What are the cutting tools used for machining special steel?: The cutting tools used for machining special steel include carbide inserts, high-speed steel (HSS) tools, ceramic tools, and diamond-coated tools. These tools are designed to withstand the high temperatures and hardness of special steels, ensuring efficient and precise cutting operations.

Q: How is alloy steel different from carbon steel?: Alloy steel is different from carbon steel because it is made by adding other elements to carbon steel, such as chromium, nickel, or manganese, to enhance its properties. This makes alloy steel stronger, more resistant to corrosion, and better suited for specific applications compared to carbon steel, which is primarily composed of iron and carbon.

Q: What are the different methods of improving the impact toughness of special steel?: There are several methods for improving the impact toughness of special steel. One common method is through heat treatment processes such as quenching and tempering, which involve heating the steel to a high temperature and then rapidly cooling it. This helps to refine the grain structure of the steel, making it more resistant to cracking and improving its toughness. Another method is alloying, where specific elements are added to the steel to enhance its toughness, such as nickel, chromium, or manganese. Additionally, controlling the cooling rate during the manufacturing process, known as controlled cooling, can also improve the impact toughness of special steel by minimizing the formation of brittle phases. Overall, a combination of heat treatment, alloying, and controlled cooling can be employed to enhance the impact toughness of special steel.

Q: How does special steel contribute to reducing product defects during manufacturing?: Special steel contributes to reducing product defects during manufacturing by offering superior strength, durability, and resistance to corrosion. It ensures the production of high-quality components that are less prone to wear, deformation, or breakage, minimizing the occurrence of defects. Additionally, special steel's consistent composition and precise manufacturing processes enable tighter tolerances, resulting in more accurate and reliable products.

Q: What are the requirements for special steel used in high-strength applications?: To ensure the performance and durability of special steel used in high-strength applications, specific requirements must be met. These requirements encompass various factors: 1. High tensile strength is crucial in withstanding heavy loads and resisting deformation. It enables the steel to endure greater stresses without failure. 2. Excellent toughness is essential as it allows the steel to absorb energy and resist fracture. This prevents sudden and catastrophic failure under impact or dynamic loading conditions. 3. Superior hardness is necessary to resist wear, abrasion, and indentation. It ensures that the material maintains its structural integrity and performance even in extreme conditions. 4. Good ductility is important alongside high tensile strength. It allows the steel to undergo plastic deformation without fracturing, making it suitable for forming or shaping during manufacturing. 5. Resistance to corrosion is vital to prevent degradation caused by moisture, chemicals, or harsh environments. This ensures the longevity and reliability of the steel in various conditions. 6. Heat resistance is required for applications involving high temperatures. It allows the steel to maintain its mechanical properties and structural stability under elevated temperatures. 7. Controlled alloying elements, such as chromium, molybdenum, nickel, or vanadium, are often added to enhance the steel's strength, toughness, hardness, and other desired properties. 8. Precise composition and microstructure are necessary to ensure consistent and predictable mechanical properties. This can be achieved through precise manufacturing processes like controlled cooling rates or heat treatments. By meeting these requirements, special steel used in high-strength applications can endure the demanding conditions it faces, providing reliable performance, longevity, and safety.

Send your message to us

*Email

*TEL

*Quantity

*Unit