Grade 40Mn CNBM Hot Rolled Alloy Steel Round Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 10000 m.t./month
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Item specifice
Type:
Spring Steel
Shape:
Steel Round Bar
Specifications:
1. Commodity: Round steel bar
2. Technical: Hot rolling
3. Length: Min. 5.8meter, according to requirement.
4.Diameter: 16mm-250mm
Material | 40Mn | Round bar | Dia(mm) | 16-600 |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12000 | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500 |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200 | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12000 | |
Chemical Composition:
C | Si | Mn | Cr | Ni | Cu |
0.5~0.8 | 0.17~0.37 | 0.25~1.2 | ≤0.25 | ≤0.30 | ≤0.25 |
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 are the applications of special steel in the manufacturing industry?
- Special steel has a wide range of applications in the manufacturing industry, including the production of machinery, tools, and equipment. It is commonly used in automotive manufacturing, aerospace engineering, and construction projects. Special steel's high strength, durability, and resistance to corrosion make it suitable for critical components requiring reliability and longevity. Additionally, its ability to withstand extreme temperatures and pressure makes it an ideal material for manufacturing specialized parts in various industries.
- Q:How does special steel contribute to the automotive suspension industry?
- Special steel contributes to the automotive suspension industry by providing high strength and durability to suspension components. It allows for lighter and more efficient designs, improving handling, stability, and overall performance of vehicles. Special steel also enhances safety by increasing the ability to absorb and dampen shocks and vibrations, resulting in a smoother and more comfortable ride for passengers.
- Q:What are the specific requirements for special steel used in the mining industry?
- Special steel used in the mining industry has specific requirements to ensure its durability, strength, and resistance to harsh conditions. Some of the key requirements for special steel used in the mining industry include: 1. High strength: Special steel used in the mining industry must have high tensile strength to withstand heavy loads and resist deformation under extreme conditions. This enables the steel to endure the pressure, impact, and stress that it may encounter during mining operations. 2. Wear resistance: Mining environments involve abrasive materials, such as rocks and ores, which can cause significant wear on equipment. Special steel used in the mining industry needs to have excellent wear resistance to prevent premature failure and increase the lifespan of mining equipment. 3. Corrosion resistance: Mining operations often take place in highly corrosive environments, such as underground mines or near water bodies. Special steel used in the mining industry should possess high corrosion resistance to withstand exposure to chemicals, moisture, and other corrosive agents. This helps prevent rusting, pitting, and other forms of corrosion that can weaken the steel. 4. Toughness: Mining equipment is subjected to heavy impacts and vibrations, which can lead to fractures if the steel is not tough enough. Special steel used in the mining industry should exhibit excellent toughness, allowing it to absorb energy from impacts and vibrations without fracturing. This ensures the safety and reliability of mining equipment. 5. Heat resistance: Mining operations involve high-temperature environments, such as smelting and refining processes. Special steel used in the mining industry must have good heat resistance to withstand the elevated temperatures without losing its strength or undergoing deformation. 6. Machinability: Special steel used in the mining industry should also have good machinability, allowing it to be easily formed into complex shapes or structures. This facilitates the manufacturing process of mining equipment and components. Overall, the specific requirements for special steel used in the mining industry revolve around strength, wear resistance, corrosion resistance, toughness, heat resistance, and machinability. Meeting these requirements is crucial for ensuring the reliability, durability, and safety of mining equipment in the demanding mining environments.
- Q:What industries commonly use special steel?
- Special steel, known as alloy steel as well, finds extensive use in diverse industries owing to its exceptional properties and performance characteristics. Several industries frequently employ special steel, including: 1. Automotive Industry: Special steel is extensively utilized in manufacturing automobile components such as crankshafts, camshafts, gears, and axles. Its exceptional strength, durability, and excellent heat resistance make it suitable for enduring the demanding conditions of the automotive sector. 2. Aerospace Industry: The aerospace industry relies on special steel to manufacture critical components like turbine blades, landing gear, and structural parts. Its ability to withstand high temperatures and maintain structural integrity under extreme conditions is vital for aerospace applications. 3. Oil and Gas Industry: In the oil and gas sector, special steel is crucial for applications like drill bits, valves, pipelines, and offshore platform components. Its corrosion resistance, high strength, and ability to withstand extreme temperatures and pressures make it suitable for these challenging environments. 4. Construction Industry: Special steel serves the construction industry in fabricating structural components, reinforcement bars, and high-rise building frameworks. Its high tensile strength, toughness, and resistance to wear and tear ensure the safety and stability of the structures. 5. Tool and Die Industry: The tool and die sector widely employs special steel in manufacturing cutting tools, molds, dies, and various machine components. Its capability to retain sharpness, resist deformation, and withstand high pressures and temperatures make it indispensable for these applications. 6. Energy Industry: Power generation plants, including nuclear, thermal, and renewable energy facilities, extensively utilize special steel. It is employed in manufacturing turbines, boilers, heat exchangers, and other critical components, thanks to its high temperature and corrosion resistance properties. 7. Medical Industry: In the medical field, special steel plays a crucial role, particularly in surgical instruments and implants. Its biocompatibility, strength, and corrosion resistance make it suitable for applications like joint replacements, dental instruments, and surgical cutting tools. 8. Manufacturing Industry: Various manufacturing processes like machining, forging, and casting widely rely on special steel. It is employed in the production of machine tools, industrial equipment, and heavy machinery components due to its high strength, toughness, and versatility. These examples represent just a fraction of the industries that commonly employ special steel. Its unique properties make it an indispensable material for a wide range of applications where strength, durability, heat resistance, and corrosion resistance are critical factors.
- Q:What are the advantages of using special steel in the marine sector?
- There are several advantages of using special steel in the marine sector. Firstly, special steel is known for its exceptional strength and durability. This is particularly important in the marine sector where structures are constantly exposed to harsh and corrosive conditions such as saltwater, extreme temperatures, and constant vibrations. Special steel has a high resistance to corrosion, making it an ideal choice for marine applications, as it can withstand the corrosive effects of seawater and prevent structural damage. Additionally, special steel offers excellent weldability, which is crucial in the construction of marine vessels and offshore structures. The ability to join steel components together seamlessly ensures the overall integrity and strength of the structure, reducing the risk of failures or accidents. Furthermore, special steel has a high fatigue strength, meaning it can withstand cyclic loading over long periods of time without experiencing failure. This is particularly important in the marine sector where structures are subjected to constant dynamic loads, such as waves and wind forces. The fatigue resistance of special steel ensures the longevity and reliability of marine structures, reducing maintenance costs and improving safety. Moreover, special steel offers design flexibility and versatility. It can be easily shaped and molded into various complex forms, allowing for innovative and efficient designs in marine structures and vessels. This flexibility also enables the optimization of weight, which is crucial in the marine sector to improve fuel efficiency and reduce emissions. Lastly, special steel is readily available and cost-effective. With advancements in manufacturing processes and technologies, special steel production has become more efficient and cost-effective, making it a viable choice for the marine sector. Its availability and affordability make it a preferred material for various marine applications. In conclusion, the advantages of using special steel in the marine sector include its exceptional strength and durability, resistance to corrosion, excellent weldability, high fatigue strength, design flexibility, and cost-effectiveness. These properties make special steel a reliable and efficient material for constructing marine structures, ensuring their longevity, safety, and operational efficiency.
- Q:Can special steel be used in the agricultural sector?
- Yes, special steel can be used in the agricultural sector. Special steel, such as high-strength steel or corrosion-resistant steel, can be utilized in various applications within agriculture, including the manufacturing of farm equipment, machinery, tools, and infrastructure. These steel types offer enhanced durability, strength, and resistance to harsh environmental conditions, making them suitable for agricultural operations and ensuring long-lasting and efficient performance in the field.
- Q:What are the common challenges in forging special steel?
- Forging special steel poses several common challenges that manufacturers and engineers must address in order to achieve desired outcomes. One of the primary challenges in forging special steel is maintaining precise temperature control throughout the process. Special steels often have specific heat treatment requirements, and any deviation from the recommended temperature range can adversely affect the final properties of the material. Achieving and sustaining the right temperature is crucial to ensure desired mechanical properties like strength, hardness, and toughness. Another challenge in forging special steel is controlling the cooling rate during quenching. Quenching is a critical step in the heat treatment process that helps to achieve the desired hardness and strength in special steels. However, rapid cooling can lead to the formation of undesirable microstructures or even cracking. Therefore, carefully managing the cooling rate is essential to avoid these issues and ensure optimal material properties. Additionally, shaping special steels through forging can be challenging due to their high strength and hardness. These materials are often more difficult to deform compared to regular steels, requiring higher forging pressures and specialized equipment. The resistance to deformation can lead to increased wear on the forging dies, requiring frequent maintenance and replacement. Furthermore, special steels may contain alloying elements that can affect their forgeability. Some alloying elements can promote grain growth, which can reduce the mechanical properties of the material. Finding the right balance of alloying elements and optimizing the forging process parameters is crucial to achieve the desired microstructure and properties in the final product. Lastly, ensuring consistency and repeatability in the forging process can be a challenge. Special steels are often produced in smaller quantities or for specific applications, making it important to maintain process control and quality assurance. Proper documentation, monitoring, and quality control measures need to be implemented to ensure that the forged special steel meets the desired specifications and performance requirements. Overall, forging special steel requires careful attention to temperature control, cooling rate during quenching, shaping difficulties, alloying elements, and maintaining consistency. Addressing these challenges through proper process control and optimization is crucial to obtain high-quality special steel products with the desired mechanical properties and performance characteristics.
- Q:How is wear-resistant steel used in mining equipment?
- Wear-resistant steel is commonly used in mining equipment to increase its durability and prolong its lifespan. It is utilized in various components such as buckets, blades, and hammers, which are subjected to intense abrasion and impact during mining operations. By incorporating wear-resistant steel, these equipment parts can withstand the harsh conditions and abrasive materials encountered in mining, reducing the need for frequent repairs or replacements and ensuring continuous productivity.
- Q:Can special steel be used in automotive engine components?
- Automotive engine components can indeed benefit from the utilization of special steel. Also referred to as alloy steel, special steel possesses enhanced properties, including increased strength, toughness, and heat resistance. These attributes make it highly suitable for the utilization in critical engine components that endure high temperatures, stress, and wear. Within the realm of automotive engines, special steel finds application in an array of components, such as crankshafts, camshafts, connecting rods, valves, and piston rings. These components encounter extreme conditions, including elevated temperatures, pressure, and rotational forces. Special steel confers the necessary strength and durability to withstand these conditions, consequently ensuring dependable engine performance and longevity. The incorporation of special steel within automotive engine components yields several advantages. Firstly, it heightens the strength and load-carrying capacity of the components, enabling them to handle greater power and torque outputs. Secondly, special steel bolsters the fatigue resistance and durability of the components, thereby diminishing the likelihood of failure and prolonging their service life. Lastly, special steel exhibits the ability to endure the high temperatures and thermal cycling experienced within the engine, thereby averting deformation and upholding dimensional stability. On the whole, the utilization of special steel in automotive engine components assumes paramount importance in the pursuit of attaining optimal performance, reliability, and longevity. It guarantees that the engine can endure the demanding conditions under which it operates, ultimately granting a smoother and more efficient driving experience.
- Q:What are the factors that affect the weldability of special steel?
- The factors that affect the weldability of special steel include the chemical composition of the steel, the presence of impurities or alloying elements, the heat treatment history, the thickness of the steel, the welding process and technique used, and the pre-weld and post-weld treatments.
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Grade 40Mn CNBM Hot Rolled Alloy Steel Round Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 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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