Special Steel W6 High Speed Tool Steel Round Bar

Special Steel W6 High Speed Tool Steel Round 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)%

Standard	C	Si	Mn	P	S	Cr	W	Mo	V
W6Mo5Cr4V2	0.55-0.65	≤0.40	≤0.60	≤0.030	≤0.020	3.70-4.30	6.00-7.00	4.50-5.50	1.70-1.10
M2	0.78-0.88	0.20-0.45	0.15-0.40	≤0.030	≤0.030	3.75-4.50	5.50-6.75	4.50-5.50	1.75-2.20

Heat Treatment

Item	Temperature℃	Hardness
Anneal	840-860	≤255HB
Quenching	1150-1180	≥60HRC
Tempering	560-580	≥60HRC

Applications:Used for various tools,large thermoplastic forming cutting tools,abrasion resistance components operating under high load such as cold extrusion dies

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Special Steel W6 High Speed Tool Steel Round Bar

Q: What are the different forming processes for special steel?: There are several different forming processes for special steel, including forging, casting, extrusion, and rolling.

Q: What are the challenges in machining special steel?: Machining special steel poses several challenges, including its high hardness and toughness. Special steels are typically designed to have enhanced properties, such as wear resistance or high strength, which makes them more difficult to machine compared to regular steels. The high cutting forces required and the rapid tool wear during machining are major challenges. Additionally, special steels often have low thermal conductivity, leading to increased heat generation during machining, which further exacerbates tool wear. Therefore, specialized cutting tools, cooling techniques, and machining parameters need to be carefully considered to overcome these challenges and achieve optimal results when machining special steel.

Q: What are the different testing methods used for special steel?: Some of the common testing methods used for special steel include hardness testing, tensile testing, impact testing, metallographic examination, chemical analysis, and non-destructive testing. These methods help assess the mechanical properties, microstructure, chemical composition, and overall integrity of special steel, ensuring its suitability for various applications.

Q: What are the properties of maraging steel?: Maraging steel is a unique alloy known for its exceptional strength, toughness, and resistance to corrosion. It is characterized by its high yield strength, making it suitable for applications that require strong and durable materials. Maraging steel also exhibits excellent machinability and weldability, allowing for ease of fabrication and assembly. Additionally, it is known for its exceptional resistance to stress corrosion cracking, making it an ideal choice for critical components in aerospace, defense, and other high-performance industries.

Q: What are the main factors affecting the impact toughness of special steel?: Various factors influence the impact toughness of special steel and other materials. The impact toughness of special steel can be affected by the following main factors: 1. Composition: The impact toughness of the steel is greatly influenced by its chemical composition. Adding elements like carbon, manganese, silicon, nickel, and molybdenum can enhance the toughness of the steel. Higher carbon content generally increases hardness but decreases toughness, while alloying elements like nickel and molybdenum can improve toughness. 2. Heat treatment: The impact toughness of special steel can be significantly altered by the heat treatment process, including quenching and tempering. Proper heat treatment can refine the steel's microstructure, making it more resistant to fractures and increasing its toughness. 3. Microstructure: The toughness of the steel is heavily influenced by its microstructure, including the size, shape, and distribution of its grains. Fine-grained steels generally exhibit better toughness compared to coarse-grained ones. The presence of certain phases, such as martensite or bainite, can also impact the impact toughness. 4. Inclusions: The presence of non-metallic inclusions, such as sulfides, oxides, or carbides, in the steel can act as stress concentration points and reduce its impact toughness. High-quality special steels often undergo processes like vacuum degassing or electroslag remelting to minimize these inclusions. 5. Processing conditions: The manufacturing processes used to produce special steel can affect its impact toughness. Factors like forging, rolling, or extrusion conditions, as well as the cooling rate during solidification, can impact the microstructure and, consequently, the toughness of the steel. 6. Temperature: The impact toughness of special steel varies with temperature. Some steels exhibit good toughness at low temperatures, while others perform better at higher temperatures. The temperature at which the steel is used or tested is an important factor to consider when evaluating its impact toughness. It is important to note that standardized tests, such as the Charpy or Izod test, are often used to determine the impact toughness of special steel. These tests involve subjecting a notched specimen to impact loading and provide valuable information on the steel's ability to absorb energy and resist fracture under impact conditions.

Q: How is mold steel used in the production of plastic injection molds?: Mold steel is commonly used in the production of plastic injection molds due to its high durability and resistance to wear and tear. It is used to create the main components of the mold, such as the cavity and core, which are responsible for shaping the plastic material. Mold steel provides the necessary hardness and strength to withstand the high pressures and temperatures involved in the injection molding process. Additionally, its excellent machinability allows for precise and intricate mold designs, ensuring the production of high-quality plastic parts.

Q: What is the role of special steel in the construction industry?: Special steel plays a critical role in the construction industry as it offers enhanced strength, durability, and resistance to corrosion, making it suitable for various applications. It is used in the construction of buildings, bridges, and other infrastructure projects to ensure structural integrity, safety, and longevity. Additionally, special steel's versatility allows for customization to meet specific project requirements, making it an essential material in the construction industry.

Q: What are the common challenges in heat treatment of special steel?: Some common challenges in the heat treatment of special steel include achieving uniform heating and cooling rates, managing distortion and warping, controlling grain growth, and avoiding the formation of undesirable phases or microstructures. Additionally, maintaining tight temperature tolerances, ensuring proper heat transfer within the material, and minimizing the risk of cracking or other forms of damage are also key challenges in the heat treatment process.

Q: Can special steel be used in the production of surgical instruments?: Yes, special steel can be used in the production of surgical instruments. Special steel alloys, such as stainless steel, are commonly used due to their desirable properties like corrosion resistance, strength, and their ability to be easily sterilized. These characteristics make special steel an ideal material for surgical instruments that require high precision and durability.

Q: What is the purpose of cold drawing in special steel production?: The purpose of cold drawing in special steel production is to improve the mechanical properties and dimensional accuracy of the steel. Cold drawing involves pulling the steel through a die at room temperature, which reduces the cross-sectional area and increases the length of the steel. This process helps to refine the microstructure of the steel, resulting in improved strength, hardness, and toughness. Additionally, cold drawing can enhance the surface finish and straightness of the steel, ensuring precise dimensions and making it suitable for various applications where high-quality steel is required. Overall, cold drawing plays a crucial role in enhancing the performance and quality of special steel, making it more reliable and efficient in various industrial sectors.

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