Alloy Steel Bar 25MoCr4 Steel Round Bar System 1

Alloy Steel Bar 25MoCr4 Steel Round Bar

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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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Designation by Standards

Brand Name	LH No.	Mat. No.	DIN	EN	AISI
25MOCR4	782	1.7325	25Mo Cr4	-	8625

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.25	0.30	0.70	0.50	0.50	-	-	-	-

Mechanical properties

1.7325, DIN 25MoCr4, AISI 8625 Mechanical properties,Our production completely according to the 1.7325, DIN 25MoCr4, AISI 8625 standards to meet the 1.7325, DIN 25MoCr4, AISI 8625 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.7325, DIN 25MoCr4, AISI 8625 mechanical properties.

Heat treatment

1.7325, DIN 25MoCr4, AISI 8625 Heat treatment,Our production completely according to the 1.7325, DIN 25MoCr4, AISI 8625 standards to meet the 1.7325, DIN 25MoCr4, AISI 8625 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.7325, DIN 25MoCr4, AISI 8625 Heat treatment.

Machining

1.7325, DIN 25MoCr4, AISI 8625 Machining,Our production completely according to the 1.7325, DIN 25MoCr4, AISI 8625 standards to meet the 1.7325, DIN 25MoCr4, AISI 8625 Machining, can also according to the customer request, to meet the requirements of customers of 1.7325, DIN 25MoCr4, AISI 8625 Machining.

Welding performance

1.7325, DIN 25MoCr4, AISI 8625 Welding performance,Our production completely according to the 1.7325, DIN 25MoCr4, AISI 8625 standards to meet the 1.7325, DIN 25MoCr4, AISI 8625 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.7325, DIN 25MoCr4, AISI 8625 Welding performance.

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Alloy Steel Bar 25MoCr4 Steel Round Bar

Q: How does special steel contribute to the automotive emission reduction?: Special steel contributes to automotive emission reduction in several ways. Firstly, it is used in the production of lightweight components, such as body panels and chassis parts. By replacing heavier materials with special steel, vehicles become lighter, resulting in improved fuel efficiency and reduced emissions. Additionally, special steel offers superior strength and durability, allowing for the design of more efficient and compact engines. This enables automakers to reduce engine size while maintaining performance, leading to reduced fuel consumption and lower emissions. Furthermore, special steel is used in the manufacturing of exhaust systems, catalytic converters, and other emission control devices. Its high heat resistance and corrosion resistance properties ensure the effective functioning of these components, thereby minimizing harmful pollutants released into the atmosphere. Overall, special steel plays a crucial role in automotive emission reduction by enabling lighter and more efficient vehicles, enhancing engine performance, and ensuring the effectiveness of emission control systems.

Q: What are the common quality control measures for special steel?: Special steel undergoes various quality control measures to ensure its compliance with desired properties and specifications. These measures are as follows: 1. To ensure the required chemical compositions, chemical composition analysis techniques, such as spectrometry, are employed. 2. Mechanical testing, including tensile testing, hardness testing, impact testing, and fatigue testing, is conducted to verify the steel's mechanical properties, such as strength, hardness, toughness, and ductility. 3. Non-destructive testing methods, like ultrasonic testing, magnetic particle testing, and dye penetrant testing, are utilized to detect any internal or surface defects in the steel, ensuring its integrity and reliability. 4. Precise dimensional inspection is carried out to measure critical dimensions, such as length, width, thickness, and diameter, in accordance with customer requirements or industry standards. 5. Surface quality inspection ensures that the steel meets the required surface quality standards by examining it for defects such as cracks, pits, scratches, or unevenness. 6. The effectiveness of the heat treatment process, which includes annealing, quenching, or tempering, is verified through hardness testing or microstructure analysis. 7. Comprehensive documentation and traceability records are maintained to ensure quality consistency and provide a reference for future use or troubleshooting. These records include details of the production process, chemical composition, mechanical properties, and any inspections or tests performed. By implementing these quality control measures, manufacturers can guarantee that special steel meets the required specifications, offering customers high-quality and dependable products for their specific applications.

Q: What are the main advantages of using special steel in the automotive industry?: Special steel offers several advantages in the automotive industry. Firstly, it provides enhanced strength and durability, ensuring the safety and reliability of vehicles. Secondly, special steel is lightweight, contributing to fuel efficiency and reducing carbon emissions. Additionally, it offers excellent formability and weldability, allowing for complex and intricate designs. Lastly, special steel possesses high corrosion resistance, extending the lifespan of automotive components and reducing maintenance costs. Overall, the use of special steel in the automotive industry enhances performance, efficiency, safety, and longevity.

Q: How does quenching and tempering affect the hardness of special steel?: Quenching and tempering significantly impact the hardness of special steel. Quenching involves rapidly cooling the steel from a high temperature, which results in a hard and brittle structure. On the other hand, tempering involves reheating the quenched steel to a specific temperature and then cooling it slowly, which reduces the brittleness and increases the toughness of the steel while maintaining a desired level of hardness. Overall, this heat treatment process modifies the microstructure of the steel, leading to a controlled increase in hardness while improving its mechanical properties.

Q: What are the different magnetic grades of special steel?: The different magnetic grades of special steel include ferritic, martensitic, austenitic, and duplex stainless steels.

Q: How does special steel contribute to the construction of bridges?: Special steel plays a crucial role in the construction of bridges by offering superior strength, durability, and corrosion resistance. It allows engineers to design lighter and more efficient bridge structures, leading to cost savings and reduced environmental impact. The use of special steel also enhances the overall safety and longevity of bridges, ensuring their ability to withstand heavy loads, extreme weather conditions, and the test of time.

Q: How does special steel resist wear and tear?: Special steel resists wear and tear due to its unique composition and manufacturing process. It is typically alloyed with elements like chromium, nickel, and molybdenum, which enhance its hardness, strength, and corrosion resistance. Additionally, special steel undergoes heat treatment processes such as quenching and tempering, which further increase its durability and ability to withstand various mechanical stresses. This combination of alloying elements and heat treatment results in a steel that is highly resistant to wear, friction, and fatigue, making it suitable for demanding applications where durability is crucial.

Q: What are the environmental considerations associated with special steel production?: Special steel production can have several environmental considerations due to its resource-intensive nature and the emissions generated during the production process. One of the main environmental considerations associated with special steel production is the extraction of raw materials. Special steel requires specific alloys and additives, which often involve the extraction of rare or valuable metals. Mining for these materials can have significant environmental impacts, including habitat destruction, soil erosion, water pollution, and the release of toxic substances. Another consideration is the energy consumption during the production process. Special steel production involves several energy-intensive stages, such as melting, refining, and shaping. These processes typically rely on fossil fuels, which contribute to greenhouse gas emissions and air pollution. Additionally, the high temperatures required for steel production contribute to significant carbon dioxide emissions, a major contributor to climate change. Water usage is also a concern in special steel production. The production process requires a substantial amount of water for cooling, cleaning, and lubrication. This can lead to water scarcity and pollution if not managed properly. The effluents generated during the production process can contain heavy metals, acids, and other pollutants, which can harm aquatic ecosystems if not adequately treated. Waste generation is another environmental consideration. Special steel production generates various types of waste, including slag, dust, and sludge. These wastes can contain heavy metals, toxins, and other pollutants. Proper disposal or treatment of these wastes is essential to prevent pollution of soil, water, and air. Lastly, the transportation of raw materials and finished products in special steel production can contribute to carbon emissions and air pollution. The long-distance shipping of raw materials and finished steel products can add to the overall environmental footprint of the industry. In conclusion, special steel production has several environmental considerations, including the extraction of raw materials, energy consumption, water usage, waste generation, and transportation. To mitigate these impacts, companies should prioritize sustainable sourcing of raw materials, invest in energy-efficient technologies, promote water conservation and treatment practices, manage and minimize waste generation, and explore cleaner transportation options.

Q: Can special steel be used in the musical instrument manufacturing industry?: Yes, special steel can be used in the musical instrument manufacturing industry. Special steel alloys such as stainless steel or nickel silver are often used in the production of certain musical instruments to enhance their durability, resistance to corrosion, and overall performance. These alloys provide specific tonal qualities and are commonly utilized in the manufacturing of components such as strings, valves, and instrument bodies.

Q: What are the requirements for special steel used in high-strength applications?: Special steel used in high-strength applications typically has specific requirements to ensure its performance and durability. These requirements include: 1. High tensile strength: Special steel used in high-strength applications must have a high tensile strength to withstand heavy loads and resist deformation. This allows it to handle greater stresses without failure. 2. Excellent toughness: The steel should possess excellent toughness, which refers to its ability to absorb energy and resist fracture. This is crucial in high-strength applications as it prevents sudden and catastrophic failure under impact or dynamic loading conditions. 3. Superior hardness: High-strength steel needs to have a high level of hardness to resist wear, abrasion, and indentation. This ensures that the material maintains its structural integrity and performance even under extreme conditions. 4. Good ductility: While high tensile strength is essential, the steel should also possess good ductility, which allows it to undergo plastic deformation without fracturing. This property is vital in applications where the steel needs to be formed or shaped during manufacturing processes. 5. Resistance to corrosion: Special steel used in high-strength applications should have excellent corrosion resistance to prevent degradation caused by exposure to moisture, chemicals, or harsh environments. This ensures its longevity and reliability in various conditions. 6. Heat resistance: Some high-strength applications involve exposure to high temperatures, so the steel should have good heat resistance to maintain its mechanical properties and structural stability under elevated temperatures. 7. Controlled alloying elements: Special steel used in high-strength applications often contains specific alloying elements such as chromium, molybdenum, nickel, or vanadium. These elements are added to improve the steel's strength, toughness, hardness, and other desired properties. 8. Precise composition and microstructure: The steel should have a well-controlled composition and microstructure to ensure consistent and predictable mechanical properties. This can be achieved through precise manufacturing processes, such as controlled cooling rates or heat treatments. Meeting these requirements ensures that special steel used in high-strength applications can withstand the demanding conditions it is subjected to, providing reliable performance, longevity, and safety.

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