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 types of wear-resistant steel?
- There are several types of wear-resistant steel, including AR400, AR450, AR500, and Hardox. These steels are specifically designed to withstand abrasion, impact, and wear in various applications such as mining, construction, and manufacturing.
- Q: How does special steel contribute to the chemical industry?
- Special steel plays a crucial role in the chemical industry by offering exceptional corrosion resistance and high temperature resistance properties. It is used to manufacture various equipment such as storage tanks, pipelines, valves, and reactors, which are essential for handling corrosive chemicals and operating under extreme conditions. Special steel ensures the integrity and safety of these structures, preventing leaks and maintaining product quality, thus enabling efficient and reliable chemical processes.
- Q: What are the factors to consider when selecting special steel for a specific application?
- When selecting special steel for a specific application, some important factors to consider include the required strength and hardness, corrosion resistance, temperature resistance, machinability, weldability, and cost. Other factors may include the desired surface finish, dimensional stability, availability, and any specific industry or regulatory requirements.
- Q: What are the different surface defects in special steel?
- Special steel can experience various surface defects. Some common defects include: 1. Scale, which is a layer of oxide that forms on the steel's surface during manufacturing. This can be caused by high temperatures or improper cooling, leading to a flaky or powdery appearance. The presence of scale can impact the quality and appearance of the steel. 2. Pitting refers to the development of small holes or depressions on the steel surface. It can be caused by corrosion, inadequate cleaning or surface preparation, or exposure to harsh environments. Pitting weakens the steel and makes it more prone to further corrosion. 3. Scratches are physical marks or indentations on the steel's surface. They can occur during handling, transportation, or processing. Scratches affect the integrity and appearance of the steel, often requiring repair or removal. 4. Roll marks are impressions or patterns left on the steel surface during the rolling process. Uneven pressure or improper alignment of rolling equipment can cause these marks, appearing as lines, grooves, or ridges. Roll marks impact the smoothness of the surface and may necessitate additional processing or polishing for removal. 5. Inclusions are foreign particles or substances embedded within the steel. They result from impurities in raw materials or contamination during manufacturing. Inclusions weaken the steel and have the potential to cause cracks or fractures. 6. Decarburization refers to the loss of carbon from the steel's surface layer. This can occur during heating or annealing processes, resulting in reduced hardness and strength. Decarburization is undesirable in special steel as it negatively affects performance. These are just a few examples of the surface defects that can occur in special steel. It is crucial to identify and address these defects to ensure the quality and performance of the steel product.
- Q: What are the different methods for surface hardening special steel?
- There are several methods available for surface hardening special steel, each with its specific advantages and applications. Some of the commonly used methods are: 1. Carburizing: This process involves heating the steel in a carbon-rich environment, typically using a gas or liquid medium. The carbon atoms diffuse into the steel's surface, forming a high-carbon layer, which results in increased hardness. Carburizing is suitable for complex-shaped parts and provides good wear resistance. 2. Nitriding: Nitriding is a process where the steel is exposed to nitrogen-rich atmospheres at elevated temperatures. The nitrogen atoms diffuse into the steel's surface, forming nitrides, which significantly enhance the surface hardness and wear resistance. Nitriding is often used for parts requiring high fatigue strength and resistance to galling and fretting. 3. Induction hardening: Induction hardening utilizes high-frequency alternating currents to heat the steel's surface rapidly. This localized heating is followed by quenching, creating a hardened layer. Induction hardening is ideal for parts with localized wear areas or where only specific regions need to be hardened. 4. Flame hardening: Flame hardening involves heating the steel's surface to a high temperature using an oxy-fuel flame and then rapidly quenching it. This method is suitable for large and heavy parts that require deep hardening. Flame hardening provides good wear resistance and toughness. 5. Laser hardening: Laser hardening is a precise and localized surface hardening technique. A laser beam is used to heat the steel's surface, and quenching is performed afterward. This method offers high flexibility and control, making it suitable for complex geometries and small areas that require hardness improvement. 6. Carbonitriding: Carbonitriding is a combination of carburizing and nitriding processes. The steel is exposed to an atmosphere containing both carbon and nitrogen, resulting in the formation of a compound layer with improved hardness and wear resistance. Carbonitriding is commonly used for parts requiring a balance of hardness, toughness, and wear resistance. It is important to note that the selection of the appropriate surface hardening method depends on factors such as the specific steel composition, desired hardness depth, part geometry, intended application, and cost considerations.
- Q: How is weathering steel used in outdoor structures?
- Weathering steel, also known as corten steel, is commonly used in outdoor structures due to its unique properties. It forms a protective rust-like surface when exposed to the elements, which acts as a natural barrier against further corrosion. This makes it highly resistant to rust and erosion, making it ideal for outdoor structures such as bridges, sculptures, architectural facades, and retaining walls. Additionally, weathering steel is aesthetically pleasing and requires minimal maintenance, making it a popular choice in various outdoor applications.
- Q: How does the addition of nickel enhance the properties of special steel?
- The addition of nickel to special steel enhances its properties in several ways. Firstly, nickel increases the strength of steel, making it more durable and resistant to deformation. This is especially important in applications where the steel will be subjected to high temperatures or heavy loads. Additionally, nickel improves the corrosion resistance of steel. It forms a protective oxide layer on the surface of the steel, preventing it from rusting or corroding when exposed to moisture or harsh chemicals. This is particularly valuable in industries such as marine, aerospace, and chemical processing, where steel is frequently exposed to corrosive environments. Furthermore, nickel improves the toughness of steel, meaning that it can withstand impact or sudden changes in temperature without fracturing or cracking. This makes it suitable for applications that require high resistance to shock or vibration, such as in construction, automotive, or machinery manufacturing. Moreover, the addition of nickel enhances the heat resistance of steel. Nickel increases the steel's ability to retain its strength and shape at high temperatures, making it suitable for applications in high-temperature environments, such as in power generation, oil and gas, or furnace systems. In summary, the addition of nickel to special steel enhances its strength, corrosion resistance, toughness, and heat resistance. These improved properties make nickel-enhanced steel highly desirable in a wide range of industries and applications, where durability, reliability, and performance under challenging conditions are paramount.
- Q: How does special steel perform in cryogenic gas environments?
- Special steel performs well in cryogenic gas environments due to its high ductility and toughness at low temperatures. It is able to maintain its mechanical properties and resist embrittlement, making it suitable for applications such as LNG storage tanks, aerospace components, and cryogenic pipelines. Additionally, special steel exhibits excellent resistance to corrosion and oxidation, further enhancing its performance in cryogenic gas environments.
- Q: What are the limitations of using special steel in marine environments?
- Special steel can be susceptible to corrosion and pitting when exposed to saltwater in marine environments. Additionally, the high cost and difficulty in sourcing and maintaining special steel can also be limiting factors.
- Q: How is special steel used in the mining supply chain?
- Special steel is used in various components and equipment used in the mining supply chain. It is commonly used in the construction of heavy machinery, such as mining trucks, excavators, and drilling rigs, as well as in the fabrication of conveyor belts and crushing equipment. Additionally, special steel is utilized in the production of wear-resistant parts, such as grinding balls and liners, which are crucial for efficient ore processing. Its exceptional strength, durability, and resistance to extreme conditions make it an essential material in the mining industry, ensuring safe and efficient operations throughout the supply chain.
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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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