Grade DIN35CrMo4 CNBM Alloy Steel Round Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Gear Steel
Shape:
Steel Round Bar
Specifications:
1. Commodity: Alloy Steel Round Bar
2. Technical: Hot rolling
3. Length: Min. 5.8meter, according to requirement.
4.Diameter: 16mm-250mm
Chemical Composition:
Grade | C | Si | Mn | Cr | P | S | Ni | Cu | Mo |
35CrMo4 | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | ≤0.035 | ≤0.035 | ≤0.03 | ≤0.03 | 0.15-0.25 |
Mechanical Property:
Grade | Tensile Strengthσb (MPa) | Yield Strength | Elongation | Reduction of Area ψ (%) | Impact Akv(J) | Hardness |
σs (MPa) | δ5 (%) | |||||
35CrMo4 | ≥980(100) | ≥785(80) | ≥9 | ≥45 | ≥47 | ≤207HB |
Usage and Applications:
Gear, Sleevesspool,Shaft, Crankshaft, Pin
Packaging & Delivery:
Packaging Detail: Standard seaworthy packing or as customer required; all goods are packed in bundle with steel strips and shipped by break bulk vessel or container
Delivery Detail: 15~45 days
Production Flow:
EAF+LF+VD+ Forged+ Heat Treatment
Material prepare (billet) — heat up — rough rolling — precision rolling — cooling — packing — storage and transportation
Quality Assurance:
1. We will strictly inspect our production that we sold according to the customer’s request.
2. Our steel reaches international quality standards.
3. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.
4. Should the packing found damaged, the buyer has the right to claim to the seller
- Q: What is the significance of carbon content in special steel?
- The carbon content in special steel is significant because it determines the steel's hardness, strength, and overall performance. Higher carbon content results in increased hardness and strength, making the steel suitable for applications requiring durability and resistance to wear and tear. On the other hand, lower carbon content enhances the steel's ductility and formability, making it more suitable for shaping and molding processes. Therefore, carbon content plays a crucial role in tailoring the properties of special steel to meet specific industrial requirements.
- Q: How does special steel perform in food processing applications?
- Special steel performs exceptionally well in food processing applications. Its unique properties such as high corrosion resistance, heat resistance, and hygienic surface finish make it ideal for use in equipment and machinery that come into direct contact with food. Special steel's resistance to chemicals and bacteria growth ensures that the food processing environment remains safe and contamination-free. Additionally, its durability and strength allow for efficient and reliable operation, contributing to the overall effectiveness of food processing operations.
- Q: How is special steel used in the railway supply chain?
- Special steel is used in the railway supply chain for various critical components such as rails, wheels, and axles, due to its superior strength, durability, and resistance to wear and fatigue. This high-quality steel ensures safe and reliable train operations, reducing maintenance needs and increasing the lifespan of railway infrastructure.
- Q: How does special steel perform in high-temperature strength?
- Special steel, also known as high-temperature steel, is specifically designed to excel in high-temperature strength applications. Unlike standard steels, which may lose their strength and structural integrity at elevated temperatures, special steel retains its mechanical properties even under extreme heat conditions. One of the key reasons behind the exceptional high-temperature strength of special steel is its unique composition. It is typically alloyed with elements such as chromium, nickel, and molybdenum, which significantly enhance its resistance to the effects of thermal expansion, oxidation, and creep. These alloying elements form stable oxides on the surface of the steel, acting as a protective layer that prevents further oxidation and corrosion, thereby maintaining the material's strength and integrity. Moreover, the microstructure of special steel plays a crucial role in its high-temperature performance. Through advanced manufacturing techniques, special steel is engineered to have a fine-grained structure, which improves its resistance to deformation and improves its creep strength. The fine grains also contribute to its ability to retain its mechanical properties at elevated temperatures for prolonged periods. Additionally, special steel undergoes rigorous heat treatment processes, such as quenching and tempering, which further enhance its high-temperature strength. These processes help to refine the microstructure and optimize the mechanical properties of the steel, including its hardness, toughness, and resistance to thermal fatigue. In conclusion, special steel is specifically designed and engineered to excel in high-temperature strength applications. Its unique composition, microstructure, and heat treatment processes contribute to its exceptional resistance to thermal expansion, oxidation, and creep, ensuring that it retains its mechanical properties and structural integrity even under extreme heat conditions.
- Q: What are the different mechanical defects in special steel?
- There are several mechanical defects that can occur in special steel, which can compromise its overall strength and performance. Some of the most common defects include: 1. Inclusions: Inclusions are foreign particles or impurities that are present in the steel. These can include oxides, sulfides, or other non-metallic materials. Inclusions can weaken the steel and reduce its ductility, making it more prone to cracking or failure. 2. Segregation: Segregation refers to the uneven distribution of alloying elements within the steel. This can lead to variations in hardness, strength, and other mechanical properties across the material. Segregation can create localized areas of weakness, increasing the likelihood of failure under stress. 3. Cracks: Cracks can occur in special steel due to a variety of factors, such as improper cooling, excessive heat, or high levels of stress. Cracks can significantly reduce the structural integrity of the steel and may propagate over time, leading to catastrophic failure. 4. Laminations: Laminations are thin layers or sheets of material that are formed during the manufacturing process. They can occur due to improper rolling or forging, or the presence of inclusions. Laminations can weaken the steel and lead to premature failure under load. 5. Decarburization: Decarburization is the loss of carbon from the surface of the steel, typically due to exposure to high temperatures or oxidation. This can result in a layer of softer, lower carbon steel on the surface, reducing the overall hardness and strength of the material. 6. Grain growth: Grain growth occurs when the individual crystals within the steel (grains) grow larger over time. This can happen due to high temperatures, prolonged exposure to stress, or improper heat treatment. Grain growth can reduce the strength and toughness of the steel, making it more prone to deformation or fracture. It is important to note that these mechanical defects can vary in severity and are often influenced by factors such as the manufacturing process, quality control measures, and the specific composition of the special steel. Regular inspection, testing, and adherence to proper handling and processing techniques are essential to minimize these defects and ensure the desired mechanical properties in special steel.
- Q: What are the properties of ultra-high-strength steel?
- Ultra-high-strength steel possesses exceptional mechanical properties, including high tensile strength, excellent toughness, and superior fatigue resistance. It exhibits high stiffness, enabling it to withstand heavy loads and maintain its shape even under extreme conditions. With its low weight and high strength-to-weight ratio, this steel offers enhanced fuel efficiency and increased payload capacity. Additionally, it exhibits good weldability, corrosion resistance, and is often used in applications where both strength and durability are paramount, such as in automotive, aerospace, and construction industries.
- Q: What are the main characteristics of pressure vessel steel forgings?
- Pressure vessel steel forgings have several main characteristics that make them suitable for use in pressure vessels. Firstly, pressure vessel steel forgings are known for their high strength and toughness. This is crucial as pressure vessels are typically subject to high levels of internal pressure, and the steel must be able to withstand this without deforming or rupturing. The forgings are carefully designed and manufactured to ensure they have the necessary strength and toughness to withstand these pressures. Secondly, pressure vessel steel forgings have excellent resistance to corrosion. As pressure vessels often contain fluids or gases that can be corrosive, it is important that the steel used in their construction is resistant to corrosion. This helps to ensure the longevity and reliability of the pressure vessel. The steel forgings are often made with specific alloying elements that enhance their corrosion resistance. Another important characteristic of pressure vessel steel forgings is their ability to maintain their mechanical properties at high temperatures. Pressure vessels may be subjected to elevated temperatures due to the nature of the process or fluid they are containing. The forgings are designed to retain their strength and toughness even under these high-temperature conditions, ensuring the safety and reliability of the pressure vessel. Furthermore, pressure vessel steel forgings are typically manufactured with strict quality control measures in place. This is necessary to ensure that the forgings meet the required standards and specifications for pressure vessel applications. The manufacturing process includes thorough inspections, testing, and documentation to ensure that the forgings meet the necessary quality and safety requirements. Overall, the main characteristics of pressure vessel steel forgings include high strength and toughness, excellent corrosion resistance, the ability to withstand high temperatures, and strict quality control measures. These characteristics make pressure vessel steel forgings ideal for use in pressure vessels, providing the necessary strength, reliability, and safety required in such applications.
- Q: Can special steel be used for medical implants?
- Yes, special steel can be used for medical implants.
- Q: What are the requirements for special steel used in chemical processing?
- The requirements for special steel used in chemical processing include high corrosion resistance, exceptional strength and durability, resistance to high temperatures and extreme pressure, and compatibility with the specific chemicals being processed.
- Q: How does special steel contribute to reducing product waste during manufacturing?
- Special steel contributes to reducing product waste during manufacturing by offering superior strength, durability, and corrosion resistance. Its unique properties allow manufacturers to produce components that are longer-lasting and more resistant to wear and tear. This reduces the need for frequent replacements or repairs, ultimately minimizing product waste and increasing overall efficiency in the manufacturing process.
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Grade DIN35CrMo4 CNBM Alloy Steel Round Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 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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