Alloy Steel ASTM 6G Special Steel Tool Steel
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- 25 m.t.
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- 10000 m.t./month
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Specification
Chemical Composition(GB)%
C | Si | Mn | P | S | Cr | Mo |
0.50-0.60 | 0.25-0.60 | 1.20-1.60 | ≤0.030 | ≤0.030 | 0.6-0.9 | 0.15-0.30 |
Standard
GB | JIS | AISI | DIN |
5CrMnMo | SKT3 | 6G | 1.2311 |
Heat Treatment
Item | Temperature ℃ | Hardness |
Anneal | 760-780 | 197-241HB |
Quenching | 820-850 | 52-58HRC |
Tempering | 490-510 | 41-47HRC |
520-540 | 38-41HRC |
Characterstics:common hammering forging die steel
Applications:Suitable for various forging dies with higher strength and abrasion resistance
2 steel
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- Q: How does special steel perform in terms of corrosion resistance in acidic environments?
- Special steel, which is also referred to as stainless steel, is highly esteemed for its exceptional resistance to corrosion in various environments, including those with acidic conditions. It is composed of a minimum of 10.5% chromium, which generates a protective layer called a passive film on the surface of the steel. This passive film acts as a barrier, preventing direct contact between the steel and the corrosive elements found in acidic environments. The chromium content in special steel enables it to react with oxygen in the atmosphere, resulting in the formation of a thin and transparent oxide layer. This oxide layer is extremely stable and capable of self-repair, which contributes to stainless steel's high resistance to corrosion caused by acids. Moreover, the presence of other alloying elements like nickel and molybdenum further enhances its ability to withstand acidic corrosion. Special steel displays excellent resistance to both general corrosion and localized corrosion, such as pitting and crevice corrosion, in acidic environments. It can endure a wide range of acid concentrations and temperatures, making it suitable for various applications in industries such as chemical processing, pharmaceuticals, and marine environments where exposure to acidic solutions is prevalent. It is worth noting that the performance of special steel in acidic environments may vary depending on the specific grade and composition of the steel. Different grades of stainless steel possess varying levels of alloying elements, which can affect their corrosion resistance properties. Therefore, it is crucial to select the appropriate grade of special steel that matches the particular acidic environment in order to ensure optimal performance and longevity.
- Q: What are the different grades and specifications of special steel?
- Special steel refers to a wide range of high-quality steels that are specifically designed to possess exceptional properties and meet specific requirements for various industrial applications. These grades and specifications of special steel are determined based on their composition, mechanical properties, and intended use. One commonly used grading system for special steel is the AISI-SAE system, which categorizes special steel into different grades based on their chemical composition. For example, AISI-SAE 4140 is a popular grade of special steel known for its high strength, toughness, and wear resistance. It contains elements such as chromium, molybdenum, and carbon, which contribute to its exceptional properties. Another widely used grading system is the ASTM system, which classifies special steel based on their mechanical properties and intended use. ASTM A36 is a commonly used grade of special steel that is known for its excellent weldability, toughness, and low carbon content. It is often used in structural applications, such as building construction and bridges. There are also specific grades and specifications of special steel for particular industries or applications. For example, stainless steel is a special steel grade that contains a high percentage of chromium, which provides excellent corrosion resistance. Stainless steel is commonly used in applications where resistance to moisture, chemicals, and high temperatures is required, such as in the food industry or medical equipment manufacturing. Furthermore, tool steel is a special steel grade specifically designed for making cutting and shaping tools. It possesses high hardness, wear resistance, and heat resistance, making it suitable for applications such as machining, forging, or die casting. In addition to these grades, special steel can also be categorized based on their specifications, such as heat treatment requirements, surface finish, or dimensional tolerances. These specifications ensure that the special steel meets the specific requirements of the intended application. Overall, the different grades and specifications of special steel are tailored to meet the diverse needs of various industries and applications, providing superior performance, durability, and reliability.
- Q: How does aluminum contribute to the properties of special steel?
- Aluminum is commonly added as an alloying element in special steel to enhance its properties. By adding aluminum to steel, several improvements can be achieved. Firstly, aluminum improves the strength of steel by forming a fine dispersion of aluminum nitride particles within the steel matrix. These particles act as barriers to dislocation movement, impeding the deformation of the steel and increasing its strength. This makes the steel more resistant to mechanical stresses and enhances its load-bearing capacity. Secondly, aluminum also enhances the corrosion resistance of steel. It forms a protective oxide layer on the surface of the steel, acting as a barrier against the corrosive agents. This oxide layer prevents the steel from oxidizing, rusting, and deteriorating over time, making it more durable and long-lasting in various environments. Additionally, aluminum can improve the machinability of special steel. Its presence in the steel composition reduces the tendency of the steel to work harden during machining operations. This makes it easier to cut, drill, or shape the steel, resulting in improved productivity and reduced tool wear. Moreover, aluminum contributes to the heat resistance of special steel. It has a high melting point and good thermal conductivity, which helps in maintaining the structural integrity of the steel at elevated temperatures. This makes aluminum-steel alloys suitable for applications where high-temperature resistance is required, such as in the aerospace and automotive industries. In summary, aluminum contributes significantly to the properties of special steel. It enhances the strength, corrosion resistance, machinability, and heat resistance of steel, making it a versatile material with a wide range of applications.
- Q: What are the properties of tungsten alloys?
- Tungsten alloys possess high density, exceptional strength, and excellent heat resistance. They exhibit excellent corrosion resistance, good electrical conductivity, and are highly resistant to wear and deformation. Additionally, tungsten alloys have a high melting point, making them suitable for applications in extreme environments such as aerospace, defense, and medical industries.
- Q: How is tool and die steel used in the manufacturing of molds and dies?
- Tool and die steel is essential in the manufacturing of molds and dies as it provides the required strength, hardness, and durability to withstand the high pressures and temperatures involved in the molding process. It is used to create the core and cavity sections of molds as well as the various components of dies. The steel is carefully selected based on its specific properties to ensure optimal performance and longevity in the production of molds and dies.
- Q: What are the requirements for special steel used in telecommunications equipment manufacturing?
- The requirements for special steel used in telecommunications equipment manufacturing can vary depending on the specific application and intended use. However, there are certain general requirements that are commonly sought after in this industry. Firstly, the special steel used in telecommunications equipment manufacturing should possess excellent mechanical properties, including high strength, toughness, and durability. This is crucial as telecommunications equipment often needs to withstand harsh weather conditions, extreme temperatures, and various environmental factors while maintaining its structural integrity. Secondly, the steel should have excellent corrosion resistance properties. Telecommunications equipment is often installed outdoors or in environments with high humidity, saltwater exposure, or chemical pollutants, which can lead to corrosion. Therefore, the special steel used in manufacturing such equipment should be resistant to corrosion to ensure longevity and reliable performance. Another important requirement is electromagnetic compatibility (EMC). Telecommunications equipment operates in an environment with various electrical and electromagnetic signals. The steel used should possess good electrical conductivity and magnetic permeability to minimize interference and maintain signal integrity. Additionally, the special steel used in telecommunications equipment manufacturing should have good thermal conductivity properties. This is important to dissipate heat generated during operation, preventing overheating and ensuring the equipment's reliability. Furthermore, the steel should be easily machinable and weldable to facilitate the manufacturing process. Ease of fabrication and forming is crucial to meet the specific design requirements of telecommunications equipment. Lastly, compliance with industry standards and regulations is essential. The special steel used in telecommunications equipment manufacturing should meet the relevant international standards and certifications to ensure safety, quality, and compatibility with other components in the telecommunication network. In summary, the requirements for special steel used in telecommunications equipment manufacturing include excellent mechanical properties, corrosion resistance, electromagnetic compatibility, thermal conductivity, machinability, and compliance with industry standards. Meeting these requirements ensures the production of high-quality and reliable telecommunications equipment.
- Q: How does special steel perform in cryogenic applications?
- Special steel performs well in cryogenic applications due to its ability to maintain its mechanical properties at extremely low temperatures. It has a low thermal expansion coefficient, high strength, and excellent toughness, which are essential characteristics for withstanding the extreme conditions of cryogenic environments. Additionally, special steel exhibits good resistance to corrosion and oxidation, making it suitable for use in cryogenic applications where exposure to low temperatures and cryogenic fluids is common.
- Q: Does special steel have any magnetic properties?
- Yes, special steel can have magnetic properties. The magnetic properties of special steel depend on its composition and processing. Some types of special steel are specifically designed to be magnetic, while others may have low magnetic permeability.
- Q: How is electrical steel used in the manufacturing of transformers?
- Electrical steel, also known as silicon steel, is crucial in the manufacturing of transformers. It is used to construct the core, which is the heart of the transformer. The unique magnetic properties of electrical steel allow it to efficiently conduct and transfer electrical energy. By laminating thin layers of electrical steel together, the core minimizes energy losses through eddy currents and hysteresis. This ensures optimal performance, high efficiency, and reduced heat generation in transformers.
- Q: What are the different methods for nitriding special steel?
- There are several methods for nitriding special steel, including gas nitriding, salt bath nitriding, plasma nitriding, and ion nitriding.
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Alloy Steel ASTM 6G Special Steel Tool Steel
- 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
OKorder Financial Service
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