20MnCr5 42CrMo4 4340 Alloy Steel Round Bar
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
20MnCr5 42CrMo4 4340 Alloy Steel Round Bar
Product Information:
1.Grade: 20MnCr5 42CrMo4 4340
2.Dia:12-300mm
3.Length:3-12m
4.Hot rolled
5.MOQ: 30mt per size
Product Overviews:
| Product Name | Typical Grades | Diameter(mm) | Standard adopted |
| Carbon Steel | 20 (1020/S20C/C22) | Ø16-Ø300 | GB/SAE/JIS/DIN |
| 40 (1040/S40C/C40) | |||
| 45 (1045/S45C/C45) | |||
| Bearing Steel | GCr9 (51100/SUJ1) | Ø12-Ø250 | |
| GCr15 (52100/SUJ2/100Gr6) | |||
| GCr9SiMn (A485-Gr.1/SUJ3) | |||
| Cr-Mo Steel | 20Cr (5120/SCr420H/20Cr4) | Ø12-Ø250 | |
| 40Cr (5140/SCr440/41Cr4) | |||
| 42CrMo(4140/SCM440/42CrMo4) | |||
| Gear Steel | 20CrNiMo | Ø16-Ø600 | |
| 20CrMn(5115/SMnC420/20MnCr5) | |||
| 20CrNiMo(8620/SNCM220/20CrMiMo2) |
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- Q: What are the different case hardening grades of special steel?
- Special steel offers a variety of case hardening grades, each with its own distinct properties and uses. Some of the commonly employed grades are: 1. 8620: This grade is commonly utilized for high-stress applications like gears and shafts. Its remarkable toughness and resistance to wear make it ideal for parts requiring both durability and strength. 2. 9310: Aerospace applications often rely on this grade due to its high strength and resistance to fatigue. It is frequently employed for gears, bearings, and components demanding exceptional toughness and load-carrying capacity. 3. 4340: Known for its hardenability and high strength, this grade is suitable for parts necessitating great tensile strength and impact resistance, such as crankshafts, connecting rods, and gears. 4. 20MnCr5: This grade finds frequent use in the production of gears, camshafts, and components requiring high surface hardness and resistance to wear. It boasts excellent case-hardening properties and good core strength. 5. EN36C (also referred to as 655M13): This grade is commonly employed for axles, shafts, and crankshafts requiring high tensile strength. Its good hardenability and exceptional toughness make it suitable for heavy-duty applications. To ensure the right grade is chosen for a specific project, it is crucial to consider the application requirements, including desired hardness, strength, and wear resistance. Seeking advice from a metallurgist or materials science expert can aid in selecting the appropriate case hardening grade.
- Q: How is special steel used in the manufacturing of cutting tools?
- Special steel is used in the manufacturing of cutting tools because of its high hardness, toughness, and wear resistance. This type of steel can be heat-treated to achieve the desired hardness and can retain its cutting edge for a longer period. It is commonly used in the production of drills, saw blades, and milling cutters to ensure efficient and precise cutting operations.
- Q: How does special steel contribute to reducing product downtime?
- Special steel contributes to reducing product downtime by offering superior strength, durability, and corrosion resistance compared to regular steel. This allows for the manufacturing of high-performance components that can withstand harsh operating conditions, reducing the likelihood of breakdowns or failures. Additionally, special steel's enhanced wear resistance prolongs the lifespan of products, minimizing the need for frequent replacements or repairs. Overall, the use of special steel in various industries helps to ensure reliable and uninterrupted operation, leading to reduced downtime and increased productivity.
- Q: How does special steel contribute to the food processing aftermarket industry?
- The food processing aftermarket industry greatly benefits from the use of special steel, as it offers a multitude of advantages that enhance overall efficiency, safety, and productivity. To begin with, special steel is renowned for its remarkable resistance to corrosion. This is particularly crucial in the food processing industry, where equipment frequently encounters acidic and corrosive substances. By utilizing special steel, machinery remains impervious to rust and contamination. As a result, the hygiene and quality standards of food processing operations are maintained, thereby reducing the risk of foodborne illnesses and contamination. Moreover, special steel exhibits exceptional strength and durability, enabling food processing equipment to withstand the demanding conditions of heavy usage and continuous operations. The robustness of special steel ensures the reliability of equipment, minimizing the likelihood of breakdowns or malfunctions during critical production processes. Consequently, operational efficiency is increased, downtime is reduced, and production output is improved. Furthermore, special steel can be customized to suit specific applications, allowing manufacturers to design and produce equipment that meets the unique requirements of the food processing industry. Special steel alloys can be tailored to possess specific properties, such as heat resistance, wear resistance, or hardness, depending on the specific processing needs. This adaptability guarantees that equipment can handle different types of food products, processing techniques, and operating conditions, resulting in enhanced versatility and adaptability within the food processing aftermarket industry. Additionally, special steel is compatible with various cleaning and sterilization processes, making it ideal for food processing equipment. The material can endure high-temperature cleaning methods, such as steam or chemical cleaning, without deteriorating or compromising its structural integrity. This ease of cleaning and sterilization contributes to maintaining the highest standards of hygiene and sanitation within the food processing industry. In conclusion, special steel's resistance to corrosion, strength, durability, customization options, and compatibility with cleaning processes make it an invaluable material within the food processing aftermarket industry. Its contribution to equipment reliability, hygiene, and productivity ensures that food processing operations can meet the stringent quality and safety standards required in this sector.
- Q: What is the impact strength of special steel?
- The impact strength of special steel can vary depending on its composition and specific grade. However, special steel is generally known for its high impact strength, making it highly resistant to sudden shocks, impacts, and fractures.
- Q: What are the different molding grades of special steel?
- Various industries and applications utilize several distinct molding grades of special steel. Some well-known molding grades are: 1. P20: This grade finds wide usage in the production of plastic injection molds, die casting, and extrusion dies. It boasts excellent machinability, high hardness, and good polishability, making it suitable for high-precision molding operations. 2. H13: Primarily used for die casting and forging applications, this grade is a hot work tool steel. It offers high toughness, good heat resistance, and excellent wear resistance, making it suitable for molding processes in high-temperature environments. 3. S7: Commonly employed in molding applications requiring high impact resistance, this grade is a shock-resistant tool steel. It provides good hardness, toughness, and machinability, making it ideal for applications like shear blades and hammer dies. 4. NAK80: Often utilized for high-quality mirror surface molds and precision molding, this grade is a pre-hardened mold steel. It offers high polishability, excellent dimensional stability, and good wear resistance, making it suitable for producing parts with demanding surface finish requirements. 5. 420SS: This grade, a stainless steel, is commonly used in molding applications that require corrosion resistance. It provides good hardness, moderate strength, and excellent corrosion resistance, making it suitable for applications such as medical devices and food processing equipment. These examples represent just a fraction of the available molding grades of special steel on the market. Each grade possesses distinct properties and characteristics that render them suitable for various molding applications. It is crucial to select the appropriate grade based on the specific requirements of the molding process to ensure optimal performance and durability.
- Q: How is carbon steel used in the manufacturing of pipes and tubes?
- Carbon steel is commonly used in the manufacturing of pipes and tubes due to its durability, strength, and cost-effectiveness. It is a versatile material that can withstand high temperatures and pressures, making it suitable for various applications such as oil and gas pipelines, water distribution systems, and structural supports. Additionally, carbon steel can be easily welded and fabricated, allowing for efficient production and customization of pipes and tubes to meet specific requirements.
- Q: How is special steel used in the marine manufacturing process?
- Special steel is used in the marine manufacturing process for various applications such as shipbuilding, offshore structures, and marine equipment. It possesses exceptional properties like corrosion resistance, high tensile strength, and durability, making it suitable for constructing hulls, decks, and other critical components of ships and offshore platforms. Special steel is also used in manufacturing marine equipment like propeller shafts, rudders, and anchors, ensuring their reliability and performance in harsh marine environments.
- Q: What are the different methods for tempering special steel?
- There are different methods available for tempering special steel, each having its own advantages and considerations. Some commonly used methods for tempering special steel are: 1. Air Tempering: Special steel is heated to a specific temperature and allowed to cool in still air. This method is suitable for low alloy steels and results in uniform hardness throughout the steel. 2. Oil Tempering: Special steel is heated to a specific temperature and then rapidly cooled by quenching it in oil. This method is commonly used for tool steels as it provides a good balance between hardness and toughness. 3. Water Tempering: Similar to oil tempering, this method involves quenching the steel in water after heating it to a specific temperature. It leads to a harder steel due to faster cooling, but it may also increase brittleness. 4. Salt Bath Tempering: The steel is immersed in a molten salt bath at a specific temperature. This method ensures controlled and uniform heat transfer, resulting in consistent hardness throughout the steel. 5. Cryogenic Tempering: Steel is cooled to extremely low temperatures, often below -100°C (-148°F), using liquid nitrogen or helium. This method further reduces residual stresses and enhances wear resistance of the steel. It is important to consider various factors such as the type of steel, desired hardness, intended application, and the required balance between hardness and toughness when choosing a specific tempering method for special steel. Following proper heat treatment guidelines and seeking advice from experts is crucial to achieve optimal results for a particular steel alloy.
- Q: What are the different surface coatings applied to special steel?
- There are several different surface coatings that can be applied to special steel in order to enhance its performance and protect it from various environmental factors. Some of the common surface coatings include: 1. Galvanizing: This is a process in which a layer of zinc is applied to the surface of the steel. It provides excellent corrosion resistance and protects the steel from rusting. 2. Powder coating: This is a technique where a dry powder is electrostatically sprayed onto the steel surface and then cured under heat. It creates a hard, durable, and decorative coating that offers excellent resistance to impact, abrasion, and corrosion. 3. Paint coating: Steel can be coated with various types of paints, including epoxy, acrylic, polyurethane, and enamel. These coatings not only enhance the appearance of the steel but also provide protection against corrosion and weathering. 4. Chrome plating: This process involves electroplating a thin layer of chromium onto the steel surface. It provides excellent resistance to corrosion, wear, and abrasion, making it suitable for applications where the steel is exposed to harsh environments. 5. Ceramic coating: Ceramic coatings are applied through thermal spraying or plasma spraying methods. These coatings offer high-temperature resistance, abrasion resistance, and excellent thermal insulation properties, making them suitable for applications in industries such as aerospace and automotive. 6. Anodizing: This process is commonly used for aluminum, but it can also be applied to certain types of special steel. It involves creating an oxide layer on the surface of the steel through an electrochemical process. Anodizing provides enhanced corrosion resistance and can also be used for decorative purposes. These are just a few examples of the different surface coatings that can be applied to special steel. The choice of coating depends on the specific requirements of the application, including factors such as corrosion resistance, wear resistance, temperature resistance, and aesthetic appearance.
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20MnCr5 42CrMo4 4340 Alloy Steel Round Bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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