42CrMo4 Alloy Steel Round Bars Hot Rolled Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
42CrMo4 Alloy Steel Round Bars Hot Rolled Bars
Product Description:
1. Sizes: Diameter: 16mm-300mm; Length: 6m, 9m, 12m
2. Grade: 42CrMo, 4140,42CrMov4
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 | 42CrMo4 | 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 different case hardening grades of special steel?
- Special steel offers a variety of case hardening grades, each with its own distinct properties and uses. Some of the commonly employed grades are: 1. 8620: This grade is commonly utilized for high-stress applications like gears and shafts. Its remarkable toughness and resistance to wear make it ideal for parts requiring both durability and strength. 2. 9310: Aerospace applications often rely on this grade due to its high strength and resistance to fatigue. It is frequently employed for gears, bearings, and components demanding exceptional toughness and load-carrying capacity. 3. 4340: Known for its hardenability and high strength, this grade is suitable for parts necessitating great tensile strength and impact resistance, such as crankshafts, connecting rods, and gears. 4. 20MnCr5: This grade finds frequent use in the production of gears, camshafts, and components requiring high surface hardness and resistance to wear. It boasts excellent case-hardening properties and good core strength. 5. EN36C (also referred to as 655M13): This grade is commonly employed for axles, shafts, and crankshafts requiring high tensile strength. Its good hardenability and exceptional toughness make it suitable for heavy-duty applications. To ensure the right grade is chosen for a specific project, it is crucial to consider the application requirements, including desired hardness, strength, and wear resistance. Seeking advice from a metallurgist or materials science expert can aid in selecting the appropriate case hardening grade.
- Q: How are titanium alloys used in the medical industry?
- Titanium alloys are widely used in the medical industry due to their excellent biocompatibility, corrosion resistance, and high strength-to-weight ratio. These alloys are used for various medical applications such as implants, surgical instruments, and medical equipment. They are often used in orthopedic implants, dental implants, and cardiovascular devices, as they provide long-term stability and compatibility with the human body. Additionally, titanium alloys are highly resistant to bodily fluids and can withstand harsh sterilization processes, making them ideal for use in the medical field.
- Q: What are the different applications of high-speed special steel?
- High-speed special steel is a type of steel that is specifically designed to withstand high temperatures and maintain its hardness at high speeds. It has a wide range of applications across various industries due to its unique properties. Some of the different applications of high-speed special steel include: 1. Cutting Tools: High-speed special steel is widely used in the manufacturing of cutting tools such as drills, milling cutters, taps, and saw blades. Its excellent hardness, heat resistance, and wear resistance make it ideal for machining operations that involve high temperatures and high-speed cutting. 2. Aerospace Industry: The aerospace industry extensively utilizes high-speed special steel in the production of aircraft components. It is used for manufacturing turbine blades, engine parts, and other critical components that require high strength, high temperature resistance, and excellent fatigue resistance. 3. Automotive Industry: High-speed special steel finds its application in the automotive industry, particularly in the manufacturing of engine components, gears, and bearings. Its ability to withstand high temperatures, resist wear, and provide strength makes it suitable for various automotive applications. 4. Power Generation: High-speed special steel is used in power generation industries such as thermal power plants, nuclear power plants, and wind energy. It is used for manufacturing turbine blades, rotors, and other components that operate at high temperatures and high rotational speeds. 5. Tool and Die Making: High-speed special steel is widely used in tool and die making industries where precision and durability are crucial. It is used for producing molds, dies, punches, and other tooling components that require high strength, wear resistance, and toughness. 6. Medical Instruments: High-speed special steel is increasingly being used in the medical field for manufacturing surgical instruments, dental tools, and implants. Its corrosion resistance, high strength, and biocompatibility make it suitable for medical applications. 7. Industrial Machinery: High-speed special steel is used in various industrial machinery applications such as bearings, gears, shafts, and cutting tools. Its ability to withstand high temperatures, resist wear, and provide strength contributes to the efficiency and reliability of industrial equipment. In conclusion, high-speed special steel finds numerous applications across industries. Its unique properties such as high temperature resistance, hardness, wear resistance, and strength make it an essential material for cutting tools, aerospace components, automotive parts, power generation equipment, tool and die making, medical instruments, and industrial machinery.
- Q: What are the different methods for improving the magnetic properties of special steel?
- Improving the magnetic properties of special steel can be achieved through various methods. One effective approach is heat treatment, which involves subjecting the steel to specific heating and cooling processes. This alters the atomic structure of the steel, enhancing its magnetic properties. For example, annealing the steel at high temperatures and slowly cooling it can create a fine-grained microstructure, resulting in improved magnetic performance. Another method is alloying, where certain elements like nickel, cobalt, or aluminum are added to the steel. Even small amounts of these alloying elements can significantly enhance the steel's magnetic characteristics, increasing its saturation magnetization and improving coercivity. Cold working, also known as cold deformation, is another technique that can improve the steel's magnetic properties. By subjecting the steel to mechanical stress at low temperatures, dislocations and defects are formed within its crystal structure, leading to improved magnetization, permeability, and reduced hysteresis losses. Grain orientation is yet another method to improve the magnetic properties of special steel. This involves aligning the grains of the steel in a specific direction through processes like hot rolling or magnetic annealing. This alignment results in anisotropic magnetic properties, meaning the steel will exhibit different magnetic characteristics depending on the direction of the applied magnetic field. Surface treatments can also be utilized to enhance the magnetic properties of special steel. Coatings such as electroplating, electroless plating, or chemical vapor deposition can modify the steel's surface, improving its magnetic performance. These treatments reduce eddy current losses, enhance corrosion resistance, and increase magnetic permeability. It is important to consider specific requirements and desired characteristics when choosing a method to improve the magnetic properties of special steel. Each method has its own advantages and limitations, and factors like cost, feasibility, and desired magnetic performance should be taken into account.
- Q: What are the different methods of preventing hydrogen embrittlement in special steel?
- Preventing hydrogen embrittlement in special steel can be achieved through various methods. Firstly, selecting the appropriate steel type that has a lower susceptibility to embrittlement is an effective preventive measure. Opting for steels with lower alloy content or different composition can be advantageous, as high strength and hardness can make steels more prone to embrittlement. Controlled heat treatment is another method that can reduce the risk of hydrogen embrittlement. Tempering and annealing at specific temperatures can relieve internal stresses and minimize the impact of hydrogen absorption. To prevent or reduce the amount of hydrogen in the steel, hydrogen mitigation techniques can be utilized. These techniques include preheating the steel before hydrogen exposure, implementing desorption methods like vacuum annealing to remove trapped hydrogen, and using hydrogen scavenger coatings or inhibitors to capture or neutralize hydrogen. Stress reduction is crucial in preventing hydrogen embrittlement. Implementing stress relief techniques such as shot peening or stress-relieving heat treatments can significantly reduce the potential for embrittlement. Proper handling and storage of the steel are also important. It is vital to protect the steel from hydrogen-rich environments during manufacturing, handling, or storage stages. This can be achieved through careful consideration of cleaning or pickling processes, appropriate packaging, and storage techniques such as using dry environments or protective coatings. Regular maintenance and inspection of steel components are essential to identify signs of hydrogen embrittlement at an early stage. This allows for timely repairs or replacements to prevent catastrophic failures. It is important to note that the specific methods employed to prevent hydrogen embrittlement may vary depending on the application, type of steel, and environmental conditions. Consulting with experts and adhering to industry standards and guidelines are crucial to ensure effective prevention of hydrogen embrittlement in special steel.
- Q: What are the main advantages of using special steel in the mining industry?
- The main advantages of using special steel in the mining industry are its exceptional strength, durability, and resistance to wear and tear. Special steel can withstand the harsh conditions and extreme forces encountered in mining operations, ensuring the longevity of equipment and machinery. Additionally, its high resistance to corrosion and heat makes it ideal for mining processes involving chemicals and high temperatures. Overall, the use of special steel enhances the efficiency, safety, and productivity of mining operations.
- Q: How does special steel contribute to the packaging aftermarket industry?
- Special steel plays a significant role in the packaging aftermarket industry by offering various benefits that contribute to the overall efficiency and quality of packaging processes. Firstly, special steel is known for its exceptional strength and durability, which makes it ideal for manufacturing packaging machinery and equipment. This robustness ensures that the machinery can withstand the rigorous demands of the industry, leading to increased reliability and reduced downtime. Additionally, special steel possesses excellent corrosion resistance properties, making it highly suitable for packaging applications that involve exposure to moisture, chemicals, or extreme temperatures. This resistance to corrosion helps to extend the lifespan of packaging equipment and prevents degradation, ultimately reducing maintenance costs and enhancing the overall efficiency of the packaging aftermarket industry. Moreover, special steel can be tailored to meet specific requirements, allowing for the production of customized packaging solutions. This flexibility and versatility enable manufacturers to create innovative designs that enhance product protection, optimize space utilization, and improve transportation logistics. For instance, special steel can be utilized to create lightweight yet sturdy packaging materials, reducing shipping costs and minimizing the environmental impact associated with packaging waste. Furthermore, special steel possesses excellent machinability and weldability, facilitating the fabrication of intricate packaging components with high precision. This capability enables manufacturers to produce packaging solutions that are tailored to specific product dimensions, ensuring a perfect fit and optimal protection during transit. In conclusion, special steel plays a crucial role in the packaging aftermarket industry by offering strength, durability, corrosion resistance, customization options, and excellent machinability. These qualities contribute to the overall efficiency, reliability, and quality of packaging processes, ultimately benefiting both manufacturers and consumers.
- Q: Can special steel be used in the rubber manufacturing industry?
- Yes, special steel can be used in the rubber manufacturing industry. Special steel is often used to create molds, tools, and equipment that are used in the production of rubber products. It is valued for its strength, durability, and resistance to wear and tear, making it suitable for various applications in the rubber manufacturing process.
- Q: What are the properties of high-strength alloy steel?
- High-strength alloy steel possesses several key properties that make it desirable for various applications. It has excellent tensile strength, allowing it to withstand heavy loads and resist deformation. The steel also exhibits high toughness, making it resistant to fracture even under extreme conditions. Furthermore, it offers exceptional corrosion resistance, ensuring longevity and durability in harsh environments. Additionally, high-strength alloy steel often maintains its properties at elevated temperatures, making it suitable for high-pressure and high-temperature applications.
- Q: What are the different surface hardening methods used for special steel?
- There are several different surface hardening methods that are commonly used for special steel. These methods are employed to improve the hardness and wear resistance of the steel, making it suitable for specific applications. Some of the most commonly used surface hardening methods for special steel include: 1. Carburizing: Carburizing is a heat treatment process that involves introducing carbon into the surface of the steel. This is typically done by heating the steel in a carbon-rich environment, such as a gas or liquid containing carbon. The carbon diffuses into the steel, forming a high-carbon layer on the surface. This process increases the hardness and wear resistance of the steel, making it suitable for applications that require high strength and durability. 2. Nitriding: Nitriding is a surface hardening process that involves introducing nitrogen into the surface of the steel. This is typically done by heating the steel in an atmosphere of ammonia gas. The nitrogen diffuses into the steel, forming a nitride layer on the surface. Nitrided steel exhibits high hardness, improved wear resistance, and increased fatigue strength. This method is commonly used for applications that require high surface hardness, such as gears, bearings, and tools. 3. Induction hardening: Induction hardening is a localized surface hardening method that involves heating only specific areas of the steel using electromagnetic induction. The heated areas are then rapidly quenched, resulting in a hardened surface layer. Induction hardening is often used for components that require high surface hardness, such as shafts, gears, and camshafts. It offers precise control over the hardened area, resulting in improved wear resistance and fatigue strength. 4. Flame hardening: Flame hardening is a surface hardening method that involves heating the steel surface using a high-temperature flame and then rapidly quenching it. The localized heating and quenching process produces a hard surface layer, while the core of the steel remains relatively unchanged. This method is commonly used for large and complex-shaped components, such as axles, crankshafts, and machine tool slides. 5. Laser hardening: Laser hardening is a precise and localized surface hardening method that involves using a high-energy laser beam to heat and melt the surface of the steel. The laser beam is moved across the surface to create a hardened layer. Laser hardening offers precise control over the hardened area, resulting in improved wear resistance and fatigue strength. It is commonly used for small and intricate components, such as cutting tools, molds, and dies. These are just a few of the surface hardening methods commonly used for special steel. Each method offers unique advantages and is chosen based on the specific requirements of the application. By employing these surface hardening methods, special steel can be tailored to meet the demands of various industries, including automotive, aerospace, and manufacturing.
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42CrMo4 Alloy Steel Round Bars Hot Rolled Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- 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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