Round Bar 42CrMo 4140 Steel of CNBM
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
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Item specifice
Type:
Alloy Steel
Shape:
Steel Round Bar
Round Bar 42CrMo 4140 Steel of CNBM
Product Description:
1. Sizes: Diameter: 16mm-300mm; Length: 6m, 9m, 12m
2. Grade: 42CrMo, 4140,42CrMov
3. Invoicing on theoretical weight or actual weight as customer’s request
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled, forged, cold rolled
Specification:
Material | 42CrMo | 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 |
0.38~0.45 | 0.17~0.37 | 0.50~0.80 | 0.9-1.2 | ≤0.030 | ≤0.030 |
Packing and Delivery:
Packing in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: Approx.45 days
Usage and Applications:
1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some especial material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
Product Show:
- Q:What are the main factors affecting the wear resistance of special steel?
- The wear resistance of special steel is impacted by a variety of factors. To begin with, the composition of the steel plays a vital role. The addition of specific alloying elements, such as chromium, vanadium, and tungsten, can significantly enhance its wear resistance. These elements create hard carbides or nitrides within the steel matrix, thereby increasing its hardness and ability to withstand wear. Furthermore, the wear resistance is greatly influenced by the heat treatment process employed. By utilizing techniques like quenching and tempering, the steel can be hardened to achieve the desired level of wear resistance. The heat treatment process also aids in refining the microstructure of the steel, making it more resistant to wear and deformation. Additionally, the microstructure of the steel is another crucial factor. The presence of fine grains and a uniform distribution of carbides or other reinforcing phases within the steel matrix greatly enhances its wear resistance. Furthermore, the existence of retained austenite, which is a metastable phase, can also contribute to improved wear resistance. Moreover, the hardness of the steel is a fundamental determinant of its wear resistance. A higher hardness level generally results in better wear resistance, as it provides resistance against the abrasive forces exerted on the steel surface. Lastly, the design and surface finish of components made from special steel also play a role in their wear resistance. The shape, size, and surface roughness of the components can impact the distribution and magnitude of the contact stresses on the steel, thereby influencing its wear resistance. In conclusion, the wear resistance of special steel is influenced by factors such as composition, heat treatment, microstructure, hardness, and the design and surface finish of the components. By carefully considering these factors, engineers can optimize the wear resistance of special steel for various applications.
- Q:Can special steel be used in the oil and gas industry?
- Yes, special steel can be used in the oil and gas industry. It is often utilized in the construction of pipelines, drilling equipment, and offshore platforms due to its high strength, corrosion resistance, and ability to withstand extreme temperatures and pressures.
- Q:How does special steel contribute to the robotics industry?
- The robotics industry benefits greatly from the use of special steel, which plays a vital role in its advancement. To begin with, special steel alloys possess extraordinary mechanical properties that make them ideal for manufacturing various robotic components. These alloys provide exceptional strength, durability, and resistance to wear and tear. Consequently, robots built with special steel can operate efficiently and reliably even in demanding environments like manufacturing plants or hazardous locations. Furthermore, special steel alloys offer outstanding heat resistance and thermal stability, a crucial characteristic in robotics. As robots often generate significant heat during operations, special steel components can withstand high temperatures without deforming or losing their structural integrity. This capability ensures that robots can perform optimally without the risk of mechanical failures caused by heat-related issues. Additionally, the corrosion resistance of special steel is highly advantageous for the robotics industry. Robots are increasingly being used in diverse applications such as underwater exploration, chemical handling, and outdoor environments. In such cases, exposure to moisture, chemicals, or harsh weather conditions can lead to corrosion and degradation of robot parts. By utilizing special steel alloys, manufacturers can significantly prolong the lifespan of robotic systems, reducing maintenance costs and enhancing overall reliability. Moreover, special steel's magnetic properties are invaluable in the development of magnetic sensors and actuators used in robotics. These sensors enable robots to detect and interact with their surroundings, improving their autonomy and adaptability. On the other hand, magnetic actuators enable precise control and movement in robotic systems. Special steel's magnetic properties contribute to the efficiency, accuracy, and responsiveness of these components, allowing robots to execute complex tasks with precision. In conclusion, special steel plays a vital role in the robotics industry by providing the necessary materials for manufacturing robust, high-performance, and versatile robotic systems. The use of special steel alloys enhances strength, durability, and the ability to withstand extreme conditions, ensuring the reliability, efficiency, and functionality of these machines.
- Q:What are the different forms in which special steel is available?
- Special steel is available in various forms such as bars, plates, sheets, tubes, wires, and forgings.
- Q:What are the different surface protection methods used for special steel?
- The different surface protection methods used for special steel include galvanizing, painting, powder coating, and electroplating. These methods are employed to prevent corrosion, enhance durability, and improve appearance. Galvanizing involves applying a layer of zinc to the steel surface, creating a protective barrier. Painting involves applying a coat of paint, acting as a protective layer against environmental factors. Powder coating is a process where a dry powder is applied to the steel surface and then heated to form a durable and protective layer. Electroplating involves depositing a thin layer of metal onto the steel surface through an electrolytic process, providing corrosion resistance and aesthetic appeal.
- Q:What are the main characteristics of corrosion-resistant castings?
- Corrosion-resistant castings are designed to withstand the damaging effects of corrosion, a natural process that deteriorates the surface of metals due to chemical reactions. These castings possess several main characteristics that make them resistant to corrosion. Firstly, corrosion-resistant castings are made from specific alloys or materials that are inherently resistant to corrosion. These materials may include stainless steel, nickel-based alloys, or high-performance alloys like Inconel or Hastelloy. These alloys contain elements such as chromium, molybdenum, or nickel that form a protective layer on the surface of the casting, preventing the corrosive agents from reaching the underlying metal. Secondly, these castings are produced using meticulous casting techniques that ensure a dense and defect-free structure. This is vital in preventing the penetration of corrosive substances into the casting. Techniques such as investment casting or vacuum casting are commonly employed to achieve a high level of precision and quality. Another important characteristic of corrosion-resistant castings is their ability to resist various types of corrosion, including general corrosion, pitting corrosion, crevice corrosion, and stress corrosion cracking. General corrosion refers to the gradual, uniform deterioration of the metal surface, while pitting corrosion creates localized holes or pits. Crevice corrosion occurs in confined spaces, such as gaps or joints, and stress corrosion cracking results from the combined effects of stress and a corrosive environment. Corrosion-resistant castings are designed to withstand all these corrosion types, ensuring long-term durability and reliability. Furthermore, corrosion-resistant castings often undergo additional surface treatments or coatings to enhance their resistance to corrosion. These treatments may include passivation, where the surface is chemically treated to form a protective oxide layer, or the application of protective coatings such as epoxy or polyurethane. These treatments provide an extra layer of defense against corrosive agents, extending the lifespan of the casting. In summary, the main characteristics of corrosion-resistant castings are the use of corrosion-resistant alloys, meticulous casting techniques, resistance to various types of corrosion, and the application of surface treatments or coatings. These characteristics ensure that these castings can withstand harsh environments and maintain their structural integrity over time, making them ideal for applications where corrosion is a significant concern.
- Q:What are the challenges in machining high-speed special steel?
- Machining high-speed special steel poses several challenges due to its unique properties and characteristics. One of the main challenges is its extreme hardness, which makes it difficult to cut and shape. High-speed special steel typically has a high carbon content and is heat-treated to enhance its hardness, which results in increased wear on cutting tools. The high hardness of this steel also leads to increased heat generation during machining, which can cause thermal distortion and affect the dimensional accuracy of the finished product. This requires the use of specialized cooling techniques and cutting tools with advanced coatings to dissipate heat and maintain stability. Another challenge is the brittleness of high-speed special steel. It tends to have low toughness and is prone to cracking and chipping during machining operations. This requires careful selection of cutting parameters, such as cutting speed, feed rate, and depth of cut, to prevent excessive stress and minimize the risk of tool failure. Additionally, high-speed special steel often contains alloying elements like tungsten, vanadium, and cobalt, which can further complicate the machining process. These elements increase the strength and wear resistance of the steel but also make it more challenging to machine. Specialized tool materials and cutting strategies are required to effectively machine these alloys and achieve desired surface finishes. Furthermore, the cost of high-speed special steel can be significantly higher than conventional steels, which adds to the challenges of machining. The high tooling costs associated with cutting tools necessary to machine this steel can be a significant investment. Overall, machining high-speed special steel requires advanced cutting techniques, specialized tooling, and careful consideration of cutting parameters to overcome the challenges posed by its extreme hardness, brittleness, and alloying elements.
- Q:What are the different casting techniques used for special steel?
- Some of the different casting techniques used for special steel include investment casting, sand casting, continuous casting, and centrifugal casting. Each technique has its own advantages and is chosen based on factors such as the complexity of the steel part, the desired quality, and cost considerations.
- Q:How does special steel contribute to the manufacturing of molds and dies?
- Special steel plays a crucial role in the manufacturing of molds and dies. Molds and dies are essential tools used in various industries, such as automotive, aerospace, and electronics, for shaping and forming materials into desired shapes and sizes. These tools need to be durable, resistant to wear and tear, and capable of withstanding high temperatures and pressures. Special steel, also known as tool steel, possesses unique properties that make it an ideal material for molds and dies. Firstly, it has a high hardness, which allows the tools to maintain their shape and surface integrity even when subjected to extensive use and repetitive impacts. This hardness also helps in achieving precision and accuracy in the final product. Additionally, special steel has excellent wear resistance, which is essential as molds and dies come into contact with various materials during the manufacturing process. The resistance to wear ensures that the tools have a longer lifespan, reducing the need for frequent replacements and minimizing production downtime. Moreover, special steel has good toughness, meaning it can absorb and withstand high impact forces without fracturing or breaking. This property is crucial in molds and dies as they often undergo significant stress during the manufacturing process, especially when dealing with materials that require high pressure or extreme temperatures. Special steel is also known for its high heat resistance, enabling molds and dies to withstand the elevated temperatures used in certain manufacturing processes, such as injection molding or metal forging. This heat resistance prevents the tools from warping or losing their shape, ensuring consistent and accurate production. Furthermore, special steel can be easily machined and shaped, allowing manufacturers to create complex and intricate designs for molds and dies. This versatility is vital as different industries require unique tool designs to meet their specific manufacturing needs. In conclusion, special steel is an essential material for the manufacturing of molds and dies due to its high hardness, wear resistance, toughness, heat resistance, and machinability. Its unique properties contribute to the durability, precision, and efficiency of molds and dies, ultimately enhancing the quality and productivity of various manufacturing processes.
- Q:What are the applications of special steel in the agriculture supply chain?
- Special steel has several applications in the agriculture supply chain. It is commonly used in the manufacturing of farm equipment and machinery such as tractors, plows, and harvesters. Special steel's high strength and durability make it ideal for these heavy-duty applications, ensuring that the equipment can withstand the demanding conditions of the agricultural sector. Additionally, special steel is also used in the production of storage tanks and silos, providing a robust and reliable solution for storing grains, fertilizers, and other agricultural products.
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Round Bar 42CrMo 4140 Steel of CNBM
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 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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