Special Steel 42CrMo/1.7225 Working Mould Steel

Special Steel 42CrMo/1.7225 Working Mould Steel

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(%)

C	Si	Mn	Cr	Mo	Ni	P	S
0.38-0.45	0.17-0.37	0.50-0.80	0.90-1.20	0.15-0.25	≤0.030	≤0.030	≤0.030

Standard

GB	AISI	DIN	JIS	ISO
42CrMo	4140	42CrMo4	SCM440	42CrMo4

Available Size

Rolled round bar	φ20-120mm × L
Forged round bar	φ130-195mm × L

Heat Treatment

Item	Temperature℃	Hardness
quenching	840-880	HRC32-34
tempering	580	HRC32-34
quenching	900	HRC54-60
tempering	150-180	HRC54-60

Applications: The steel is suitable for manufacturing requires a certain strength and toughness of large and medium-sized plastic mold

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Special Steel 42CrMo/1.7225 Working Mould Steel

Q: How does the heat treatment process affect the hardness of special steel?: The heat treatment process can significantly affect the hardness of special steel. By subjecting the steel to controlled heating and cooling cycles, the microstructure of the steel can be altered, leading to changes in its hardness. Hardening, for example, involves heating the steel to a high temperature and then quenching it rapidly, resulting in a harder and more brittle material. On the other hand, tempering, which involves reheating the hardened steel at a lower temperature, can reduce the brittleness while maintaining a desirable level of hardness. Thus, the heat treatment process allows for precise manipulation of the hardness of special steel to meet specific requirements.

Q: What are the different types of high-speed steel?: There are several different types of high-speed steel, including M1, M2, M42, and T1. Each type has its own unique composition and properties, making them suitable for various applications in cutting tools, drills, and machining operations.

Q: What are the different types of heat treatment processes used for special steel?: The different types of heat treatment processes used for special steel include annealing, normalizing, hardening, tempering, and quenching.

Q: Can special steel be used for cutting tools?: Yes, special steel can be used for cutting tools. Special steel, such as high-speed steel or tool steel, is specifically designed to have superior hardness, strength, and toughness, making it ideal for cutting applications. These steels can retain their sharpness and withstand high temperatures and mechanical stress, resulting in efficient and durable cutting tools.

Q: How does special steel contribute to the thermal conductivity of products?: The unique composition and properties of special steel significantly enhance the thermal conductivity of products. By incorporating specific alloying elements like chromium, nickel, molybdenum, or vanadium, the thermal conductivity of special steel is improved. These alloying elements increase the free electron density within the steel, facilitating efficient heat transfer. The presence of alloying elements in special steel improves its lattice structure, enabling better heat transfer. The increased free electron density allows for quick and efficient movement of thermal energy through the material. Consequently, special steel effectively conducts heat from one area to another, making it suitable for applications requiring high thermal conductivity. Moreover, special steel undergoes advanced techniques like heat treatment, forging, or rolling, which further optimize its properties. These processes refine the microstructure, reducing impurities and enhancing thermal conductivity. As a result, the resulting steel product exhibits improved heat transfer capabilities and offers efficient thermal management. The remarkable thermal conductivity of special steel makes it highly sought after in various industries and applications. It finds extensive use in manufacturing heat exchangers, boilers, furnaces, and other thermal equipment where efficient heat transfer is crucial. Additionally, special steel is commonly employed in electrical appliances such as stovetops or induction cookers, where rapid and uniform heat distribution is necessary. To sum up, special steel enhances the thermal conductivity of products by utilizing specific alloying elements and advanced processing techniques. Its high thermal conductivity makes it invaluable in various industries, ensuring efficient heat management and optimal performance of thermal equipment and appliances.

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 types of nitriding steel?: There are mainly two types of nitriding steel: gas nitriding steel and plasma nitriding steel.

Q: What are the different surface finishing techniques for special steel?: Some of the different surface finishing techniques for special steel include electroplating, powder coating, passivation, etching, and polishing.

Q: How does special steel contribute to the aerospace racing aftermarket industry?: Special steel plays a crucial role in the aerospace racing aftermarket industry by offering superior strength, durability, and corrosion resistance properties. It is used in the manufacturing of various aircraft components, such as engine parts, landing gear, and structural elements, ensuring high performance and safety standards. The use of special steel in this industry allows for lighter and more efficient aircraft designs, enhancing speed and fuel efficiency. Additionally, special steel's resistance to extreme temperatures and stress makes it ideal for aerospace applications, contributing to the overall reliability and longevity of aftermarket products.

Q: How does special steel perform in construction applications?: Special steel performs exceptionally well in construction applications due to its superior strength, durability, and resistance to corrosion. It allows for the creation of structurally sound and long-lasting buildings, bridges, and other infrastructure. Additionally, its versatility and ability to be fabricated into various shapes and sizes make it highly suitable for a wide range of construction projects.

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