JIS Scr420,DIN 20Cr4,SAE 5120, Alloy Steel Bar
- Ref Price:
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- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
JIS Scr420,DIN 20Cr4,SAE 5120, Alloy Steel Bar
Product information:
Hot rolling craftwork and fine mechanical performance
Chemical components meet standards, delivery in black skin
Standards: a) JIS Scr420 b) Din 20Cr4 c) ASTM 5120 d)GB/T3077 20Cr
Size: dia 16-200mm
Length:6M above
Packing:Bundles
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Product detail:
1. Delivery condition: Hot-rolled,black surface. Hot forged +Rough machined (black surface after Q/T)+ Turned (optional), Cold-drawn Conditionm, Q+T with black surface.
2. Chemical composition: %
| C | Si | Mn | P | S | Cr |
| 0.18-0.24 | 0.17-0.37 | 0.7-1.0 | ≤0.03 | ≤0.030 | 0.5-0.9 |
3. Process: EAF + LF + VD + Forged + Heat Treatment (optional)
4. Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing
5. Test: ultrasonic test according to SEP 1921-84 3C/c
6. Material details will be as per agreed technical specifications
7. Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation and hardness), forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.
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Our service:
-High manufacturing accuracy
-High strength
-Small inertia resistance
-Strong heat dissipation ability
-Good visual effect
-Reasonable price
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer's trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
If you need the sample, please feel free to let me know. Any question, we will contact you ASAP!
Alloy steel is a kind of steel in addition to containing silicon and manganese as alloying elements and deoxidizing elements, but also contains other alloy elements such as chromium, nickel, molybdenum, vanadium, titanium, copper, tungsten, aluminum, cobalt, niobium, zirconium and other elements, and some also contain some nonmetallic elements (such as boron, nitrogen, etc.) of the steel. Alloy steel due to the presence of different kinds and quantities of alloying elements and take appropriate measures in the process, can be respectively, with high strength, toughness, quenching through resistance, abrasion resistance, corrosion resistance, resistance to temperature resistance, heat resistance and other special properties.
Alloy steel bar is mainly applicable to drill, milling cutter, reamer. It can also be used for cutting, stamping and measuring tools. It is used in the paper, packaging, printing, non-ferrous metal processing industry. In addition, it is also widely used for processing high-speed steel cutting tool, hard alloy cutter, hard alloy cutting tools, NAS cutting tool, air tool, hard alloy bit, cutter from core bit, high speed steel, taperd milling cutter, cutter metric, micro end milling cutter, the hinge pilot, electronic tools, drilling ladder, metal cutting saw, double assurance diamond, guns, angle cutter, tungsten carbide rotary burrs, hard alloy cutting tools and so on.
- Q: How does special steel perform in high-stress environments?
- Special steel is designed specifically for high-stress environments, excelling in various forms of stress, including mechanical, thermal, and chemical stress. What sets it apart is its distinct composition and manufacturing process, resulting in exceptional resistance to stress. One of the standout features of special steel is its remarkable tensile strength. It can withstand immense pressure without deforming or failing. This strength is achieved by incorporating alloying elements like chromium, nickel, and molybdenum, which enhance its structural integrity and toughness. These elements also enhance the steel's resistance to corrosion and oxidation, ensuring its durability and reliability in harsh conditions. Additionally, special steel exhibits superb fatigue resistance, enabling it to endure repetitive and cyclic loading without developing cracks or fractures. This quality is crucial in high-stress environments where components are constantly subjected to vibrations or cyclic loading, such as in aerospace, automotive, and industrial applications. Not only does special steel possess impressive mechanical properties, but it also boasts exceptional resistance to extreme temperatures. It retains its strength and integrity even at elevated temperatures, making it suitable for use in high-temperature environments like power plants, furnaces, and chemical processing industries. Furthermore, special steel excels in wear resistance, enabling it to withstand abrasive conditions encountered in mining, construction, or manufacturing processes. This reduces the need for frequent maintenance or replacement, resulting in cost savings and increased productivity. In conclusion, special steel's outstanding performance in high-stress environments can be attributed to its unique combination of strength, durability, corrosion resistance, fatigue resistance, temperature resistance, and wear resistance. Its ability to withstand extreme conditions makes it the ideal choice for critical applications where reliability and safety are of utmost importance.
- Q: How does special steel contribute to the automotive racing industry?
- Special steel plays a crucial role in the automotive racing industry by providing high-performance components and ensuring the safety and reliability of race cars. Its unique properties such as strength, durability, and heat resistance make it ideal for various applications in racing vehicles. One of the main contributions of special steel to the automotive racing industry is its use in the construction of engine parts. Components like crankshafts, camshafts, connecting rods, and valves are subjected to extreme forces and temperatures during racing. Special steel alloys, such as high-strength steels, are specifically designed to withstand these conditions and offer superior performance compared to conventional steel. This allows race car engines to operate at higher speeds, generate more power, and endure intense racing conditions without compromising reliability. Furthermore, special steel is also extensively used in the manufacturing of suspension systems and chassis components. Racing cars are subjected to extreme loads and vibrations while cornering and maneuvering at high speeds. The use of high-strength steel in these critical components enhances the structural integrity of the vehicle, improving stability, handling, and overall performance. In addition to performance benefits, special steel also contributes to the safety of race cars. Safety is of paramount importance in the racing industry, and the use of special steel in roll cages and crash structures provides enhanced protection to drivers in case of accidents. Special steel alloys, such as boron steel, offer exceptional strength and energy absorption capabilities, minimizing the risk of injury during crashes. Moreover, the lightweight nature of special steel allows for the reduction of overall vehicle weight, leading to improved fuel efficiency and better handling. By using advanced steel materials and design techniques, race car manufacturers can achieve a balance between strength and weight, optimizing performance without compromising safety. In summary, special steel plays a vital role in the automotive racing industry by contributing to the performance, safety, and reliability of race cars. Its unique properties allow for the development of high-performance engine parts, suspension systems, and chassis components, enabling race cars to withstand extreme conditions and achieve superior performance on the track. Moreover, special steel enhances the safety of race cars by providing robust crash protection, while also offering weight reduction benefits for improved fuel efficiency and handling.
- Q: Can special steel be used in marine applications?
- Marine applications can indeed utilize special steel. This type of steel, also referred to as marine grade steel, is specifically engineered to endure the demanding conditions found in marine environments. It possesses exceptional qualities, including heightened resistance to corrosion, increased strength, and enhanced durability, which render it suitable for a wide range of marine applications. The construction of ships, offshore structures, and marine equipment commonly employs special steel. Its capacity to withstand corrosion from saltwater, chemicals, and other environmental factors makes it an excellent choice for marine applications. Additionally, special steel finds use in the production of propellers, shafts, and other components that necessitate high tensile strength and fatigue resistance. All in all, special steel proves to be a dependable and efficient material for marine applications due to its unique properties and ability to withstand the challenges presented by the marine environment.
- Q: What are the factors affecting the cost of special steel?
- There are several factors that can affect the cost of special steel. Firstly, the cost of raw materials used in the production of special steel, such as iron ore and alloys, can have a significant impact on its overall price. Additionally, the level of demand for special steel, both domestically and globally, can influence its cost. Factors such as market competition, economic conditions, and government policies can also play a role in determining the price of special steel. Lastly, the complexity of the manufacturing process, including the level of skill required and the use of advanced technologies, can contribute to the higher cost of special steel compared to regular steel.
- Q: What are the advantages of using special steel in industrial applications?
- Using special steel in industrial applications has several advantages. Firstly, it offers exceptional strength and durability, making it suitable for heavy-duty tasks. The unique composition and manufacturing process of special steel result in a material that can withstand high levels of stress, extreme temperatures, and harsh environmental conditions. This makes it ideal for industries such as construction, automotive, and manufacturing, where reliable and long-lasting materials are required. Secondly, special steel exhibits excellent corrosion resistance. It can resist the damaging effects of moisture, chemicals, and other corrosive agents, which is crucial in industries like marine, oil and gas, and chemical processing. The corrosion resistance of special steel reduces the need for frequent maintenance and replacement, saving both time and costs for industrial applications. Furthermore, special steel offers superior machinability and formability. It can be easily shaped, cut, and welded to meet specific design requirements. This versatility allows for complex and intricate designs in various industrial applications, including machinery, tools, and equipment. Another advantage of special steel is its ability to maintain its properties at high temperatures. It has excellent heat resistance, ensuring that it remains strong and stable even under extreme heat conditions. This makes special steel suitable for applications involving high-temperature environments, such as aerospace, power generation, and furnace components. Additionally, special steel can exhibit excellent wear resistance and hardness. It can withstand abrasion, friction, and impact, making it ideal for applications where materials are subjected to heavy wear and tear, such as mining, construction equipment, and cutting tools. The wear resistance of special steel ensures that components have a longer lifespan and require less frequent replacement. In conclusion, the use of special steel in industrial applications brings forth exceptional strength and durability, corrosion resistance, machinability and formability, heat resistance, and wear resistance. These properties make special steel a preferred choice for a wide range of industries, contributing to improved performance, longevity, and cost-effectiveness.
- Q: What are the common defects found in special steel?
- The defects commonly found in special steel may vary depending on the specific type and manufacturing process employed. However, there are a few defects that tend to be prevalent across different types of special steel. One frequently encountered defect is the presence of surface imperfections, including cracks, pits, or scratches. These imperfections can occur during manufacturing or as a result of handling and transportation. Not only do surface imperfections affect the steel's aesthetic appeal, but they can also compromise its structural integrity. Another defect commonly observed is the existence of internal voids or inclusions. These are small pockets of gas or non-metallic materials trapped within the steel during casting or forging. Internal voids can weaken the steel and make it more susceptible to failure when subjected to stress. Inconsistent composition is also a defect that can arise in special steel. This occurs when the alloying elements are not evenly distributed throughout the steel. Such inconsistency can lead to variations in mechanical properties and render the steel less reliable and predictable in terms of performance. Grain structure defects are another common occurrence in special steel. These defects arise when the grains within the steel are improperly formed or are not uniform in size. Grain structure defects can negatively impact the steel's strength and toughness, thereby increasing its susceptibility to fracture or deformation. Lastly, improper heat treatment can give rise to defects in special steel. Since heat treatment is a crucial process in steel manufacturing, any errors in its execution can result in various defects, such as excessive hardness, brittleness, or poor dimensional stability. It is important to note that while these defects are commonly found, they can be minimized or eliminated through meticulous manufacturing processes, stringent quality control measures, and appropriate handling and storage of the steel.
- Q: What are the main characteristics of alloy steel?
- Alloy steel is a type of steel that is made by adding certain elements, such as chromium, nickel, or molybdenum, to iron. These additional elements give alloy steel its unique properties and characteristics. Some of the main characteristics of alloy steel include: 1. High strength: Alloy steel is known for its exceptional strength. The addition of alloying elements enhances the steel's ability to withstand high pressures and heavy loads, making it ideal for applications that require a strong and durable material. 2. Hardness: Alloy steel is also known for its hardness. It has a higher level of hardness than regular carbon steel, which makes it resistant to wear, abrasion, and deformation. This characteristic makes alloy steel suitable for applications where resistance to impact or wear is crucial, such as in the manufacturing of cutting tools or machinery parts. 3. Corrosion resistance: Depending on the specific alloying elements added, alloy steel can exhibit excellent resistance to corrosion. Chromium, for example, is commonly added to alloy steel to create stainless steel, which is highly resistant to rust and corrosion. This characteristic makes alloy steel a preferred material in industries where exposure to moisture or corrosive environments is common. 4. Heat resistance: Alloy steel is known for its ability to withstand high temperatures without losing its strength or structural integrity. The addition of elements like nickel, molybdenum, or vanadium enhances the steel's ability to resist thermal expansion, oxidation, and softening at elevated temperatures. This characteristic makes alloy steel suitable for applications in the aerospace, automotive, and power generation industries. 5. Versatility: Alloy steel is a versatile material that can be easily customized to meet specific requirements. By varying the composition and proportions of alloying elements, manufacturers can create alloy steel with a wide range of properties, such as improved ductility, toughness, or electrical conductivity. This versatility allows alloy steel to be used in various industries, including construction, manufacturing, and engineering. Overall, the main characteristics of alloy steel are high strength, hardness, corrosion resistance, heat resistance, and versatility. These properties make alloy steel a preferred choice for a wide range of applications that require a strong, durable, and reliable material.
- Q: Can special steel be used in the recycling industry?
- Yes, special steel can be used in the recycling industry. Special steel, which is highly durable and resistant to corrosion, can be recycled and reused in various applications. It can be melted down and reprocessed to create new steel products, reducing the need for raw materials and minimizing waste in the recycling industry.
- Q: What are the different types of corrosion that special steel can encounter?
- Special steel can encounter various types of corrosion, including general corrosion, localized corrosion such as pitting and crevice corrosion, galvanic corrosion due to the contact with dissimilar metals, intergranular corrosion along grain boundaries, and stress corrosion cracking caused by the combined effect of tensile stress and corrosive environment.
- Q: How does special steel contribute to the electrical conductivity of products?
- Special steel contributes to the electrical conductivity of products by offering high levels of purity and low levels of impurities. Its composition and manufacturing process ensure that it has excellent conductivity and minimal resistance, allowing for efficient flow of electric current.
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JIS Scr420,DIN 20Cr4,SAE 5120, Alloy Steel Bar
- Ref Price:
-
- Loading Port:
- China main port
- 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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