Grade SAE 5140 alloy steel round bars Hot Rolled
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Product Description:
OKorder is offering Grade 5140 alloy steel round bar at great prices with worldwide shipping. Our supplier is a quality manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American,African and Asian markets..etd. We will quote you our most competitive prices within 24 hours after received the inquiry and guarantee the quality.
Product Applications:
Grade SAE51200/ GCr15 / 100cr6 Bearing Steel are ideal for structural applications and are widely used in the
Gear, Sleevesspool,Shaft, Crankshaft, Pin
Product Advantages:
OKorder's Grade SAE5140 alloy steel are durable, strong, and resist corrosion.
Chemical Composition
Grade | C | Si | Mn | Cr | Ni | Cu | P | S |
40Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | ≤0.30 | ≤0030 | ≤0.035 | ≤0.035 |
41Cr4 | 0.38-0.45 | ≤0.40 | 0.60-0.90 | 0.90-1.20 | ≤0.030 | ≤0.030 | ≤0.035 | ≤0.035 |
5140 | 0.38-0.43 | 0.17-0.37 | 0.70-0.90 | 0.70-0.90 | ≤0.030 | ≤0.030 | ≤0.040 | ≤0.035 |
Mechanical Properties
Grade | Tensile Strengthσb (MPa) | Yield Strength | Elongation | Reduction of Area ψ (%) | Impact Akv(J) | Hardness |
|
| |||||
σs (MPa) | δ5 (%) | |||||
5140 | ≥980(100) | ≥785(80) | ≥9 | ≥45 | ≥47 | ≤207HB |
Packaging & Delivery
Standard seaworthy packing or as customer required
Leadtime
Delivery time: Within 30 days after order is confirmed.
- Q:What are the different methods of surface pickling for special steel?
- Pickling special steel can be achieved through various methods. These methods comprise acid pickling, electrolytic pickling, mechanical pickling, and passivation. The most commonly employed method for pickling special steel is acid pickling. It entails immersing the steel in an acid solution, typically hydrochloric acid or sulfuric acid, to eliminate any surface impurities. By reacting with the steel's oxide layer, the acid dissolves it, leaving a pristine surface. Electrolytic pickling, on the other hand, involves passing an electric current through the steel submerged in an electrolyte solution. This creates a chemical reaction that removes surface impurities. Electrolytic pickling offers better control and enables a more consistent surface finish compared to acid pickling. Mechanical pickling utilizes abrasive materials like sandpaper or wire brushes to physically scrub the steel's surface and eliminate any scale or rust. It is often combined with acid or electrolytic pickling to achieve the desired surface finish. After pickling, special steel can undergo passivation to enhance its corrosion resistance. Passivation entails treating the steel with a chemical solution, typically nitric acid or citric acid, to form a protective oxide layer on the surface. This layer prevents further corrosion and enhances the steel's overall durability. It's worth mentioning that the specific method of surface pickling for special steel may vary depending on factors such as the type of steel, desired surface finish, and intended application. Therefore, it is essential to consult experts or adhere to the manufacturer's guidelines to ensure the appropriate pickling method is employed for special steel.
- Q:How does special steel contribute to the aerospace fuel efficiency?
- Special steel contributes to aerospace fuel efficiency in several ways. Firstly, special steel alloys are used in the manufacturing of aircraft engines, which are designed to be lightweight and durable. The use of these alloys helps reduce the overall weight of the engine, resulting in less fuel consumption during flight. Additionally, special steel is also used in the construction of various aircraft components, such as wings and landing gear. By utilizing stronger and lighter steel materials, the overall weight of the aircraft is reduced, leading to improved fuel efficiency. Moreover, special steel's high temperature resistance properties enable it to withstand the extreme heat generated by engines, allowing for more efficient combustion and reduced energy loss. Overall, the use of special steel in aerospace applications significantly contributes to fuel efficiency by reducing weight, improving durability, and optimizing engine performance.
- Q:What are the challenges in heat treatment of special steel?
- Some challenges in the heat treatment of special steel include achieving the desired hardness and strength without compromising other properties, such as toughness and corrosion resistance. Special steels often have complex compositions, which can make it difficult to accurately control the heat treatment process. Additionally, heat treatment of special steel can be time-consuming and costly due to the need for precise temperature and time control, as well as the potential for distortion or cracking during the heat treatment process.
- Q:How does the composition of special steel affect its properties?
- The composition of special steel greatly affects its properties. By adjusting the amounts of elements like carbon, manganese, chromium, and nickel, the steel's hardness, strength, corrosion resistance, and heat resistance can be modified. Additionally, the presence of specific elements can also enhance other properties such as toughness, wear resistance, and machinability. Therefore, careful control of the composition allows manufacturers to tailor the steel's properties to meet specific requirements for different applications.
- Q:How does special steel contribute to the construction sector?
- Special steel contributes to the construction sector by providing enhanced strength, durability, and corrosion resistance to various structural components. Its unique properties enable the construction of high-rise buildings, bridges, and infrastructure projects that can withstand extreme conditions and last for decades. Additionally, special steel offers flexibility in design, allowing for innovative and efficient construction techniques.
- Q:How does special steel perform in cryogenic conditions?
- Special steel performs well in cryogenic conditions. Its low temperature resistance allows it to maintain its strength, toughness, and ductility even at extremely cold temperatures. This makes it suitable for various applications in cryogenic industries, such as liquefied natural gas (LNG) storage tanks, aerospace components, and medical equipment. Additionally, special steel's resistance to brittleness and corrosion ensures its reliability and durability in these challenging environments.
- Q:What are the different methods of surface laser cladding for special steel?
- There are several methods of surface laser cladding for special steel, including powder-based laser cladding, wire-based laser cladding, and direct laser cladding. Powder-based laser cladding involves melting a powder material onto the surface of the steel using a laser beam. Wire-based laser cladding uses a wire feed system to deliver the material to be cladded onto the surface, which is then melted by the laser. Direct laser cladding directly melts the material onto the steel surface without the need for additional feed systems, making it a more efficient and precise method.
- Q:Can special steel be used for automotive engine components?
- Yes, special steel can be used for automotive engine components. Special steels such as high-strength, heat-resistant, and corrosion-resistant alloys are often employed in manufacturing engine components to ensure durability, performance, and efficiency under demanding conditions.
- Q:How does alloy steel improve the strength and toughness of steel?
- Alloy steel improves the strength and toughness of steel by introducing additional elements, such as manganese, chromium, nickel, or molybdenum, into the base iron-carbon composition. These alloying elements enhance the steel's properties by forming solid solutions or precipitates that hinder dislocation movement, increasing the material's strength. Furthermore, they modify the microstructure, resulting in a refined grain size and improved toughness, making the alloy steel more resistant to deformation, wear, and fracture.
- Q:What is the difference between special steel and regular steel?
- Special steel refers to a specific type of steel that has been enhanced with additional alloying elements or has undergone specialized treatments to enhance its strength, durability, or other desired properties. Regular steel, on the other hand, refers to common or standard steel that does not possess these additional features or improvements. The key difference lies in the composition and processing, as special steel is engineered to meet specific requirements for particular applications, such as high-temperature resistance, corrosion resistance, or increased hardness.
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Grade SAE 5140 alloy steel round bars Hot Rolled
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 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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