Special Steel AISI 5140 Mild Carbon 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
- OKorder Service Pledge
- Quality Product
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- Timely Delivery
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Item specifice
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 |
Main product
Plastic Mould Steel
DIN 1.2311,1.2738,1.2083,1.2316 etc.
AISI P20,P20+Ni,420 etc.
JIS SUS420J2
Hot Work Steel
DIN 1.2344,1.2343,1.2367,1.2365,1.2581,1.2713 etc.
AISI H13,H11,H10,H21, etc.
JIS SKD61,SKD6,SKD5,SKT4 etc.
Cold Work Steel
DIN 1.2739, 1.2601, 1.2080, 1.2436, 1.2631, 1.263, 1.2510, 1.2327 etc.
AISI D2, D5, D3, D6, A8, A2, O1 etc.
JIS SKD10, SKD11, SKD1, SKS3 etc.
High Speed Steel
DIN 1.3343, 1.3243, 1.3247, 1.3355 etc.
AISI M2, M35, M42, T1 etc.
JIS SKH51, SKH35, SKH59, SKH2 etc.
Alloy Structural Steel
DIN 1.7035,1.6511,1.7220,1.7225 etc.
AISI 5140, 4340, 4135, 4140 etc.
JIS SCr440,SNCM439,SCM435,SCM440 etc.
Stainless & Carbon Steel or Others
DIN 1.4125,1.1191 etc
AISI 440C,1045, 1020 etc.
JIS SUS440C,S45C etc
Product show
Workshop show
- Q:
- There are several grades of special steel, including stainless steel grades such as 304, 316, and 430; tool steel grades like D2, O1, and A2; and high-speed steel grades such as M2 and M42. Each grade has unique properties and applications, making them suitable for various industries and specific purposes.
- Q:
- There are several methods for joining special steel components, each with its own advantages and limitations. Some of the common methods include: 1. Welding: This is one of the most widely used methods for joining steel components. It involves melting the edges of the components and fusing them together. Welding can be done using various techniques such as arc welding, gas welding, or laser welding, depending on the specific requirements of the project. 2. Bolting: Bolting involves using bolts, nuts, and washers to join steel components together. This method is preferred for applications where disassembly or maintenance may be required. It provides a strong and reliable connection but may not be suitable for high-stress applications. 3. Riveting: Riveting involves using metal fasteners called rivets to join steel components together. This method is commonly used in applications where high strength and resistance to vibration are required. Riveting is a permanent joining method that provides a strong and durable connection. 4. Adhesive bonding: Adhesive bonding involves using high-strength adhesives to join steel components together. This method is preferred for applications where aesthetics and weight reduction are important. Adhesive bonding can provide a strong and durable connection, but the surface preparation and adhesive selection are critical for ensuring the bond's strength. 5. Mechanical fastening: Mechanical fastening methods, such as using screws or clips, can also be used to join special steel components. This method is often used for temporary connections or for components that need to be easily assembled and disassembled. Each joining method has its own advantages and considerations, and the choice of method depends on factors such as the specific application, load requirements, lifespan expectations, cost considerations, and the nature of the steel components being joined. It is important to carefully evaluate these factors and consult with experts to determine the most suitable joining method for a given project.
- Q:
- There are several different surface treatments available for special steel, including galvanization, electroplating, powder coating, and nitriding. These treatments provide various benefits such as corrosion resistance, improved appearance, increased hardness, and enhanced durability, depending on the specific needs and requirements of the steel application.
- Q:
- Enhancing the performance and safeguarding special steel from corrosion or damage can be achieved through various coating methods. Some commonly used techniques include: 1. Galvanization: A layer of zinc is applied to the steel, either through hot-dip galvanization or electroplating. This zinc layer offers exceptional corrosion resistance and acts as a sacrificial anode, preventing rusting. 2. Powder coating: An electrostatically applied dry powder is cured under heat, creating a protective layer that not only provides resistance to chipping, scratching, and corrosion but also adds an appealing finish. 3. Electroplating: The steel is immersed in a solution containing metal ions like chromium or nickel, and an electric current is passed through it. This process deposits the metal ions onto the steel surface, forming a thin protective layer that enhances corrosion resistance and gives a decorative appearance. 4. Cladding: A layer of corrosion-resistant material, such as stainless steel or titanium, is bonded to the surface of the special steel. Cladding offers improved resistance to corrosion, wear, and heat while maintaining the base steel's strength and mechanical properties. 5. Thermal spraying: Coating material like zinc or aluminum is heated to a molten or semi-molten state and then sprayed onto the steel surface using compressed air or a similar method. The sprayed material forms a protective layer that delivers excellent corrosion resistance and can also provide functional properties like thermal insulation or electrical conductivity. 6. Chemical conversion coating: The steel surface is treated with a chemical solution that reacts with the surface to create a thin layer of protective compound like phosphate or chromate. This conversion coating enhances corrosion resistance and promotes the adhesion of subsequent coatings. These are just a few examples of the numerous coating methods available for special steel. The selection of the most suitable method depends on factors like desired properties, intended application, and budget constraints. It is crucial to choose the appropriate coating method to ensure the longevity and performance of the special steel.
- Q:
- Yes, special steel can be used in cryogenic applications. Special steels, such as stainless steels, are known for their excellent resistance to low temperatures and can maintain their mechanical properties even at extremely cold temperatures. This makes them suitable for use in cryogenic applications where materials need to withstand and perform well in extreme cold environments.
- Q:
- High-speed steel (HSS) is a type of tool steel that is widely used in machining applications due to its exceptional properties. The main characteristics of high-speed steel include: 1. Superior Hardness: HSS is known for its remarkable hardness, which allows it to withstand high temperatures and resist wear. This hardness is achieved through the addition of various alloying elements like tungsten, molybdenum, cobalt, vanadium, and chromium. 2. Excellent Heat Resistance: High-speed steel has exceptional heat resistance, enabling it to maintain its hardness and strength even at elevated temperatures. This property is crucial in applications where the tool needs to withstand high cutting speeds and generate significant amounts of heat. 3. Good Toughness: HSS possesses good toughness, which means it can resist cracking and chipping under heavy loads or impact. This characteristic ensures that the tool can endure demanding cutting conditions without premature failure. 4. High Wear Resistance: HSS exhibits high wear resistance, making it suitable for cutting, drilling, and milling operations. It can withstand prolonged usage without losing its sharpness or performance, resulting in extended tool life. 5. Versatility: High-speed steel is highly versatile and can be used for a wide range of applications, including cutting, shaping, and forming various materials such as metals, plastics, and wood. Its versatility makes it a popular choice in industries like manufacturing, automotive, aerospace, and construction. 6. Ease of Machining: HSS can be easily machined and shaped into different tool designs, which allows for customization and optimization based on specific applications. This characteristic makes it a preferred material for manufacturing cutting tools like drills, end mills, taps, and saw blades. 7. Cost-Effective: Compared to other high-performance tool materials like carbide, high-speed steel is relatively more cost-effective. It provides a balance between performance and affordability, making it a cost-efficient choice for many machining applications. In conclusion, high-speed steel is valued for its exceptional hardness, heat resistance, toughness, wear resistance, versatility, ease of machining, and cost-effectiveness. These characteristics make it a preferred material for a wide range of cutting tools, ensuring efficient and reliable machining operations.
- Q:
- Magnetic steel forgings exhibit several key characteristics that make them highly desirable in various industries. Firstly, magnetic steel forgings possess excellent magnetic properties, allowing them to be easily magnetized and demagnetized. This property makes them suitable for applications where magnetism is required, such as in electrical motors and generators. Secondly, magnetic steel forgings possess high strength and durability. Due to the forging process, the steel is compressed and shaped, resulting in a dense and uniform microstructure. This enhances the mechanical properties of the steel, including its tensile strength, impact resistance, and fatigue strength. As a result, magnetic steel forgings can withstand heavy loads and harsh operating conditions, making them ideal for use in demanding applications such as automotive components, industrial machinery, and aerospace parts. Another characteristic of magnetic steel forgings is their excellent corrosion resistance. The forging process helps to refine the grain structure of the steel, making it less susceptible to corrosion and oxidation. This property is crucial in industries where components are exposed to corrosive environments or high temperatures, such as marine applications or oil and gas equipment. Furthermore, magnetic steel forgings offer good machinability and weldability. The forging process not only enhances the mechanical properties of the steel but also improves its machinability, allowing it to be easily shaped and modified into intricate designs. Additionally, magnetic steel forgings can be readily welded without compromising their integrity, providing flexibility in manufacturing and assembly processes. Lastly, magnetic steel forgings exhibit excellent dimensional stability. The forging process involves controlled heating and cooling, which helps to minimize dimensional changes and distortions. This ensures that the final product maintains its shape and dimensions, enabling precise fit and compatibility with other components. In summary, the main characteristics of magnetic steel forgings include excellent magnetic properties, high strength and durability, corrosion resistance, good machinability and weldability, and dimensional stability. These characteristics make magnetic steel forgings highly versatile and widely used in various industries, contributing to their overall success and popularity.
- Q:
- Special steel plays a crucial role in the oil and gas equipment industry by offering enhanced strength, corrosion resistance, and heat resistance properties. This type of steel is specifically designed to withstand the extreme conditions of oil and gas exploration, extraction, and processing. One of the primary benefits of special steel in this industry is its superior strength. Oil and gas equipment, such as drill pipes, wellheads, and pipelines, are subjected to high pressure, heavy loads, and harsh environments. Special steel, with its high tensile and yield strength, ensures that these components can withstand these demanding conditions without failure, ensuring the safety and reliability of the equipment. Corrosion resistance is another significant advantage of special steel in the oil and gas equipment industry. The extraction and transportation of oil and gas involve exposure to corrosive substances, such as hydrogen sulfide, carbon dioxide, and saltwater. Special steel is designed to resist corrosion, minimizing the risk of equipment degradation, leaks, and costly maintenance. Moreover, special steel exhibits excellent heat resistance properties. In the oil and gas industry, equipment often operates at high temperatures due to the process of oil refining, gas compression, or steam injection. Special steel's capability to withstand high temperatures without losing its mechanical properties makes it an ideal choice for critical components like valves, heat exchangers, and turbines. The use of special steel also enables the oil and gas industry to explore and extract resources from challenging environments. Offshore drilling rigs, for example, face harsh conditions such as strong waves, saltwater exposure, and extreme temperatures. Special steel's resistance to these environmental factors ensures the durability and longevity of offshore equipment. In summary, special steel significantly contributes to the oil and gas equipment industry by providing enhanced strength, corrosion resistance, and heat resistance. By utilizing this type of steel, the industry can ensure the reliability, safety, and longevity of its equipment, ultimately enhancing operational efficiency and minimizing downtime.
- Q:
- Special steel plays a crucial role in the production of valves and fittings due to its unique properties and characteristics. Valves and fittings are essential components used in various industries, including oil and gas, chemical, petrochemical, and power generation. Special steel, also known as alloy steel, offers superior strength, corrosion resistance, and durability compared to regular carbon steel. These qualities make it an ideal material for manufacturing valves and fittings that are subjected to high pressure, extreme temperatures, and corrosive environments. In valve production, special steel is commonly used for the valve body, bonnet, stem, and other critical parts. The valve body is responsible for housing the internal components and sealing the flow of fluids or gases. Special steel's high tensile strength and resistance to deformation ensure the valve body can withstand the pressure and maintain a tight seal, preventing leaks. Similarly, special steel is used in the production of fittings, which are used to connect pipes or other equipment in a fluid or gas system. Fittings made from special steel can withstand high pressures, temperature fluctuations, and corrosive media, ensuring a reliable and leak-free connection. Special steel alloys, such as stainless steel or duplex stainless steel, are often selected for their excellent corrosion resistance. They can withstand harsh environments, including exposure to chemicals, saltwater, and acidic or alkaline substances. This corrosion resistance is crucial in preventing valve and fitting failure, maintaining system integrity, and avoiding costly downtime or accidents. Moreover, special steel can be tailored to meet specific requirements, such as high-temperature resistance, low-temperature toughness, or excellent wear resistance. This allows manufacturers to customize valves and fittings based on the specific application and operating conditions, ensuring optimal performance and longevity. In summary, special steel is extensively used in the production of valves and fittings due to its exceptional strength, corrosion resistance, and durability. Its properties allow valves and fittings to perform reliably in demanding environments, ensuring safe and efficient operations in various industries.
- Q:
- Special steel used in cryogenic applications must meet several requirements to ensure its performance and reliability in extreme low-temperature environments. Firstly, the steel should have excellent low-temperature toughness to withstand the extreme cold. This means that it should be able to resist brittle fracture and maintain its mechanical properties even at cryogenic temperatures. The steel should have a high toughness and ductility to absorb impact and prevent cracking. Secondly, the steel must have a low coefficient of thermal expansion. This is important because cryogenic applications involve significant temperature changes, and a high coefficient of thermal expansion can lead to dimensional instability and stress within the material. A low coefficient of thermal expansion helps to minimize these effects and maintain dimensional stability. Thirdly, the steel should have a low thermal conductivity. Cryogenic applications often involve the transfer or storage of extremely cold substances, and a low thermal conductivity helps to prevent heat transfer and maintain the desired temperature. This is particularly important for applications where temperature control is critical, such as in the storage of liquefied gases. Additionally, the steel should have good corrosion resistance. Cryogenic environments can be highly corrosive, and the steel needs to be able to withstand the effects of any corrosive substances that may be present. This is particularly important for applications involving the storage or transportation of cryogenic liquids or gases. Finally, the steel should have good weldability. In many cryogenic applications, welding is required to join different components or sections of the steel. Therefore, the steel must have good weldability to ensure strong and reliable joints. In summary, the requirements for special steel used in cryogenic applications include excellent low-temperature toughness, low coefficient of thermal expansion, low thermal conductivity, good corrosion resistance, and good weldability. Meeting these requirements ensures that the steel can withstand the extreme cold and harsh conditions of cryogenic environments while maintaining its structural integrity and performance.
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