Steel Round Bar S355J2G3 Forged Round Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Steel Round Bar S355J2G3 Forged Round Steel
Product Information:
1.S355J2G3 forged round bar
2.size:280*5300mm
3.ut:sep1921-84D/d
4.heatreatment:annealed
5.straightness:2mm/m
6.Process: EAF+LF+VD (ESR furnace for optional)
7.Delivery condition: Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining
8.Technical Data: Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement
9.Test: Ultrasonic and magnetic test according to customer' require(EN or ASME and so on).
Product Overviews:
| Product Name | Typical Grades | Diameter(mm) | Standard adopted |
| Carbon Steel | 20 (1020/S20C/C22) | Ø16-Ø300 | GB/SAE/JIS/DIN |
| 40 (1040/S40C/C40) | |||
| 45 (1045/S45C/C45) | |||
| Bearing Steel | GCr9 (51100/SUJ1) | Ø12-Ø250 | |
| GCr15 (52100/SUJ2/100Gr6) | |||
| GCr9SiMn (A485-Gr.1/SUJ3) | |||
| Cr-Mo Steel | 20Cr (5120/SCr420H/20Cr4) | Ø12-Ø250 | |
| 40Cr (5140/SCr440/41Cr4) | |||
| 42CrMo(4140/SCM440/42CrMo4) | |||
| Gear Steel | 20CrNiMo | Ø16-Ø600 | |
| 20CrMn(5115/SMnC420/20MnCr5) | |||
| 20CrNiMo(8620/SNCM220/20CrMiMo2) |
Product Show:
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- Q: What are the different techniques used for joining special steel?
- Some of the different techniques used for joining special steel include welding, brazing, soldering, and adhesive bonding. Each technique has its own advantages and considerations depending on the specific application and properties of the steel being joined. Welding involves melting and fusing the steel together, while brazing and soldering use a lower temperature to join the steel with a filler material. Adhesive bonding uses a strong adhesive to bond the steel surfaces together. The choice of technique depends on factors such as the strength required, the materials being joined, and the desired properties of the final joint.
- Q: What are the limitations of using special steel in electrical applications?
- There are several limitations to using special steel in electrical applications. Firstly, special steel can be more expensive compared to other materials commonly used in electrical applications, such as copper or aluminum. This can make it less cost-effective, especially for large-scale projects. Another limitation is that special steel has a relatively high electrical resistivity compared to copper or aluminum. This means that it is less efficient in conducting electricity, leading to higher energy losses and lower overall efficiency in electrical systems. This can be particularly important in applications where energy efficiency is a priority, such as in power generation or transmission. Additionally, special steel is generally less malleable and ductile compared to other materials like copper. This makes it less suitable for applications that require shaping or forming, as it can be more difficult to work with and may require more complex manufacturing processes. Furthermore, special steel is more prone to corrosion compared to materials like copper or aluminum. This can be a significant limitation in electrical applications, particularly in environments with high humidity or exposure to moisture. Corrosion can lead to degradation of the steel's electrical properties, reduce its lifespan, and increase maintenance and replacement costs. Lastly, special steel may not be as readily available or easily sourced as other materials commonly used in electrical applications. This can pose challenges in terms of availability, lead times, and potential supply chain disruptions, which may impact project timelines and overall productivity.
- Q: How is high-temperature alloy steel used in the production of heat exchangers?
- High-temperature alloy steel is used in the production of heat exchangers due to its exceptional heat resistance and strength properties. This type of steel can withstand high temperatures without deforming or losing its mechanical properties, making it ideal for handling hot fluids or gases in heat exchange processes. The alloy's ability to resist corrosion and oxidation further enhances its suitability for this application. Overall, high-temperature alloy steel ensures the durability and efficiency of heat exchangers in various industries such as power generation, chemical processing, and petroleum refining.
- 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 challenges in welding special steel?
- One of the main challenges in welding special steel is its high carbon content, which can result in increased hardness and brittleness. This requires careful control of the welding process, including preheating and post-weld heat treatment, to prevent cracking and ensure proper weld strength. Additionally, special steels often have alloying elements that can influence the weldability, such as chromium, nickel, or molybdenum, requiring specific filler materials and welding techniques. Overall, the challenges in welding special steel lie in achieving a strong and defect-free weld while maintaining the desired mechanical properties of the steel.
- Q: What are the different marine grades of special steel?
- There are several marine grades of special steel commonly used in marine applications. Some of the most widely known grades include 316, 316L, and 2205. These grades are specifically designed to resist corrosion and maintain their strength and integrity in harsh marine environments. Additionally, other grades such as 304 and 904L are also used in marine applications for their corrosion resistance properties.
- Q: Can special steel be used in power generation applications?
- Yes, special steel can certainly be used in power generation applications. Special steel refers to various types of steel that are specifically designed to have enhanced properties such as high strength, durability, heat resistance, corrosion resistance, and wear resistance. These properties make special steel ideal for use in power generation applications where the materials need to withstand high temperatures, pressures, and mechanical stresses. In power generation, special steel can be used in various components and equipment, such as turbine blades, boiler tubes, heat exchangers, steam pipes, and high-pressure valves. For example, in thermal power plants, where fossil fuels are burned to generate electricity, special steel is commonly used in boiler tubes and heat exchangers to withstand the high temperatures and pressures of the steam generation process. Additionally, in nuclear power plants, special steel is used in critical components like reactor vessels, steam generators, and fuel cladding due to its excellent strength, resistance to radiation damage, and corrosion resistance. Furthermore, special steel is also used in renewable energy power generation applications. For instance, in wind turbines, special steel is used in the construction of turbine towers, rotor blades, and gearboxes, as it needs to withstand high wind speeds, vibrations, and fatigue. Overall, special steel plays a crucial role in power generation applications due to its exceptional properties, ensuring the reliability, efficiency, and longevity of the equipment and components used in various power generation systems.
- Q: How does precipitation hardening enhance the strength of special steel?
- Precipitation hardening, also known as age hardening, is a heat treatment process that enhances the strength of special steel alloys. This process involves a series of steps that result in the formation of fine particles or precipitates within the material's microstructure. The strength of special steel is primarily determined by the arrangement and interaction of its atoms. In its initial state, the alloy's atoms are distributed randomly, resulting in a relatively soft and ductile material. However, through precipitation hardening, the formation of precipitates during heat treatment plays a crucial role in strengthening the steel. The process begins by heating the steel to a high temperature, known as solution treatment or aging temperature. This temperature allows the atoms to dissolve and form a solid solution. The alloy is then rapidly cooled to retain the supersaturated state of the solution. Following the rapid cooling, the steel is subjected to a lower temperature, known as aging temperature. At this stage, the dissolved atoms begin to migrate and cluster together, forming small precipitates within the material's microstructure. These precipitates act as obstacles to the movement of dislocations, which are the primary carriers of plastic deformation in metals. The presence of these precipitates hinders the dislocation movement, making it more difficult for them to glide through the crystal lattice. As a result, the strength of the steel is significantly enhanced. The dislocation obstacles provided by the precipitates increase the resistance to deformation, resulting in improved hardness and strength. Furthermore, the size, distribution, and homogeneity of the precipitates play a crucial role in determining the strength enhancement. Smaller and more uniform precipitates provide a higher density of obstacles, leading to a greater strengthening effect. Additionally, the precipitation hardening process also influences other material properties, such as corrosion resistance and toughness. In conclusion, precipitation hardening enhances the strength of special steel by creating fine precipitates within the material's microstructure. These precipitates act as obstacles to dislocation movement, increasing the resistance to deformation and resulting in improved hardness and strength. This heat treatment process plays a crucial role in the development of high-performance special steel alloys used in various industries.
- Q: How does special steel contribute to the formability of products?
- Special steel, which is also known as alloy steel, plays a vital role in enhancing the formability of products. Various industries, including automotive, aerospace, and construction, find special steel to be an ideal choice due to its unique properties and composition. One way in which special steel contributes to product formability is through its exceptional strength and durability. Engineered to have a higher tensile strength compared to regular steel, special steel can undergo significant deformation without breaking or cracking. This characteristic allows manufacturers to shape and mold the steel into intricate and complex designs, resulting in products with improved formability. Moreover, special steel offers excellent resistance to deformation, specifically elastic deformation. This means that even after enduring significant stress or strain, the steel can return to its original shape, minimizing the risk of permanent deformation. Such a feature proves advantageous in applications where products need to withstand repeated bending or shaping without compromising their structural integrity. Additionally, special steel often contains specific alloying elements like chromium, nickel, or molybdenum, which further enhance its formability. These alloying elements improve the steel's ability to be easily formed and manipulated, making it more ductile and minimizing the chances of cracking during the forming process. Furthermore, special steel can undergo heat treatment to modify its mechanical properties and enhance its formability. Annealing or quenching are some of the heat treatment processes that can make the steel more malleable, allowing for easy shaping and forming into desired products. In conclusion, special steel plays a critical role in enhancing product formability due to its exceptional strength, resistance to deformation, inclusion of alloying elements, and heat-treatability. These properties enable manufacturers to create products with intricate designs and complex shapes, fulfilling the diverse needs of various industries while ensuring durability and structural integrity.
- Q: Is special steel suitable for manufacturing firearms?
- Yes, special steel is highly suitable for manufacturing firearms. Special steel alloys are specifically designed to possess exceptional properties such as high strength, hardness, and resistance to wear and corrosion. These characteristics are crucial for firearms as they need to withstand high pressures, recoil forces, and intense heat generated during firing. Special steel alloys, such as stainless steel or chrome-molybdenum steel, offer excellent tensile strength, allowing firearms to handle the immense pressure generated by the ignition of gunpowder. Moreover, the hardness of special steel ensures that the critical components, such as barrels and receivers, are durable and can withstand repeated use without deforming or cracking. Firearms also require resistance to wear and corrosion, as they are often exposed to harsh environments and various weather conditions. Special steel alloys are engineered to have superior resistance to both wear and corrosion, ensuring that the firearms remain functional and reliable even after prolonged use or exposure to moisture. Furthermore, special steel alloys can be easily machined and formed into complex shapes, allowing manufacturers to create intricate firearm components with precision. This versatility in manufacturing processes enables the production of firearms that meet stringent quality standards and precise specifications. In conclusion, special steel is unquestionably suitable for manufacturing firearms due to its exceptional strength, hardness, resistance to wear and corrosion, and ease of machining. These properties ensure the reliability, durability, and performance of firearms, making special steel an ideal material choice for this purpose.
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Steel Round Bar S355J2G3 Forged Round Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 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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