Steel Round Bar 18CrNiMo7-6 17CrNiMo6
- Ref Price:
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- 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 18CrNiMo7-6 17CrNiMo6
Product Information:
1. Dia.5-50 mm cold drawn,
Dia.12-330 mm hot rolled,
Dia.100-1200 mm forged
2.EAF + LF + VD + Hot rolled or Forged + Annealed / QT (optional)
3.Black / peeled / rough-turned
4.UT SEP1921 Class C/c
5.Application:Heavy-duty arbors, bushings, wear pins, bearings, sprockets, gears and shafts etc. Or can be used for high tensile applications uncarburised but through hardened and tempered.
Good through hardening properties with excellent toughness due to the low carbon and high alloy content, also suitable for Nitriding.
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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Communication, Experience, Expertise and Best efforts are our Promises to you.
- Q: What are the different methods of surface finishing for special steel?
- Special steel can be finished using various methods, each with its own advantages and the ability to meet specific aesthetic or functional needs. Some commonly utilized techniques include: 1. Electroplating: Through an electrochemical reaction, a layer of metal is deposited onto the surface of the special steel. This process enhances corrosion resistance, improves appearance, and can increase hardness or wear resistance. 2. Passivation: A chemical treatment is employed to eliminate surface contaminants and form a thin oxide layer on the special steel. This treatment enhances corrosion resistance by preventing rust or other oxidation products from forming. 3. Polishing: Utilizing abrasive materials, a mechanical process is employed to remove a thin layer of the steel surface, resulting in a smooth and glossy finish. This method is often used to enhance the appearance of special steel products or achieve a desired level of reflectivity. 4. Shot blasting: Tiny metal beads or shots are propelled at high speeds onto the surface of the special steel. This technique removes scale, rust, or other surface contaminants, resulting in a clean and textured finish. Shot blasting is commonly employed to prepare the steel for subsequent coating or painting applications. 5. Physical vapor deposition (PVD): A vacuum-based coating process is used to deposit a thin layer of material onto the special steel surface. This method offers excellent adhesion, wear resistance, and the ability to provide various colors or finishes to enhance the steel's aesthetics. 6. Powder coating: Dry powder is applied onto the special steel surface and then cured under heat to form a protective and decorative layer. This method offers excellent corrosion resistance, durability, and a wide range of color options. 7. Anodizing: An electrolytic process is employed to create a controlled oxide layer on the surface of specific special steel alloys. This process increases corrosion resistance, improves appearance, and can enhance hardness or wear resistance. These methods are just a selection of the numerous options available for surface finishing special steel. The choice of method will depend on factors such as the desired finish, functional requirements, and the specific properties of the steel being used.
- Q: How does special steel contribute to reducing product downtime?
- Special steel contributes to reducing product downtime by offering enhanced durability and resistance to wear, corrosion, and high temperatures. Its unique properties enable components made from special steel to withstand harsh operating conditions and maintain their integrity over extended periods. By using special steel in critical parts, manufacturers can minimize the frequency of component failures, repairs, and replacements, thereby reducing product downtime and increasing overall productivity.
- Q: What are the factors to consider when selecting special steel for a specific application?
- When choosing special steel for a particular use, there are several critical factors to take into account: 1. Mechanical properties play a crucial role in determining the steel's suitability for the application. Strength, hardness, toughness, and ductility are all important considerations. Matching the steel's mechanical properties to the specific requirements of the application is essential to achieve optimal performance and ensure safety. 2. The steel's resistance to corrosion is another key factor to consider. Different environments, such as marine, chemical, or high-temperature conditions, may necessitate the use of corrosion-resistant alloys or coatings. This is vital to ensure the steel's longevity and reliability in service. 3. Temperature resistance is crucial in many applications. The steel must be able to withstand high or low temperatures without compromising its mechanical properties. Factors like thermal expansion, thermal conductivity, and resistance to thermal fatigue should be taken into account to ensure effective performance in the intended environment. 4. If welding or fabricating the steel into complex shapes is necessary, the ease of weldability and fabricability becomes an important consideration. Certain steels may require specialized welding techniques or preheating to prevent cracking or distortion during fabrication. 5. Cost is a significant consideration as well. It is important to find a balance between the desired properties of the steel and the available budget. This ensures cost-effectiveness without compromising performance or safety. 6. The availability of the chosen steel grade in the required form, size, and quantity is another critical factor. It is crucial to ensure that the selected steel can be easily sourced and obtained within the required timeframe. This helps to avoid project delays or cost overruns. 7. Compliance with industry-specific standards, specifications, or regulations is essential. Depending on the industry or application, there may be specific requirements that the steel must meet. Selecting a steel grade that complies with these standards is necessary to ensure compliance and maintain necessary certifications or approvals. By considering these factors, engineers and manufacturers can make well-informed decisions when choosing special steel for specific applications. This ensures optimal performance, durability, and safety.
- Q: What are the different types of corrosion-resistant steel?
- There are several types of corrosion-resistant steel, including stainless steel, weathering steel, and galvanized steel. Stainless steel is the most common type, known for its high resistance to corrosion due to the presence of chromium. Weathering steel forms a protective rust-like layer, providing long-term corrosion resistance. Galvanized steel is coated with a layer of zinc, which acts as a barrier against corrosion.
- Q: What are the magnetic properties of special steel?
- Special steel can exhibit a range of magnetic properties depending on its composition and processing. It can be non-magnetic, weakly magnetic, or strongly magnetic. The specific magnetic properties of special steel can be tailored to meet specific requirements for different applications.
- Q: What is the impact strength of special steel?
- The impact strength of special steel is high, making it resistant to fractures or breaking under high impact or sudden forces.
- 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 alloys or heat-resistant grades, are often utilized in critical engine parts like crankshafts, camshafts, connecting rods, valves, and pistons. These specialized steels offer enhanced strength, durability, and resistance to wear and high temperatures, ensuring reliable performance and longevity in demanding automotive engine applications.
- Q: What are the applications of special steel in aerospace engineering?
- The aerospace industry heavily relies on special steels for their distinct characteristics and capabilities. These steels are specifically crafted to meet the demanding needs of aerospace engineering, where utmost importance is placed on strength, resistance to corrosion, and tolerance to extreme temperatures. Here are some notable applications of special steel in aerospace engineering: 1. Aircraft engine components: Stainless steels and other special steels are extensively used in the production of aircraft engine components. These steels offer unparalleled strength, resistance to corrosion, and durability at high temperatures, making them perfect for critical parts like turbine blades, compressor discs, and shafts. 2. Landing gear systems: The landing gear of an aircraft undergoes significant stress and impact during takeoff, landing, and taxiing. To withstand these forces, special steels with remarkable strength, toughness, and resistance to fatigue are utilized in the manufacturing of landing gear components such as struts, axles, and shock absorbers. 3. Structural components: Aerospace structures must endure dynamic loads, vibrations, and extreme environmental conditions. Various structural components like wings, fuselage frames, and support structures employ special steels, particularly high-strength low-alloy (HSLA) steels. These steels offer exceptional strength-to-weight ratios, ensuring structural integrity while minimizing weight. 4. Fasteners: Special steel fasteners, including bolts, screws, and rivets, play a crucial role in joining different components in aerospace applications. These fasteners are typically made from high-strength steels, providing exceptional tensile and shear strength, as well as resistance to corrosion, to ensure secure and reliable connections. 5. Fuel system components: Special steels with high resistance to corrosion, such as stainless steels, are utilized in the construction of fuel system components like tanks, pipes, and valves. These steels prevent fuel leakage and maintain the system's integrity, even in harsh environments. 6. Electrical connectors: Aerospace electrical systems necessitate reliable and efficient electrical connectors. Special steels, often possessing high electrical conductivity and resistance to corrosion, are employed in the manufacturing of connectors, guaranteeing optimal performance and longevity. In conclusion, the outstanding properties of special steels make them indispensable in aerospace engineering. Whether it is for critical engine components, landing gear systems, structural applications, fasteners, fuel systems, or electrical connectors, these steels provide the necessary strength, resistance to corrosion, and stability in extreme temperatures, ensuring safe and efficient aircraft operation.
- Q: Can special steel be used in the wood manufacturing industry?
- Yes, special steel can be used in the wood manufacturing industry. Special steel, such as high-speed steel or tool steel, is often used in the production of cutting tools like saw blades or drill bits, which are essential in wood processing. These types of steel offer superior hardness, durability, and resistance to wear, allowing for efficient and precise cutting of wood. Additionally, special steel can also be used in the production of machinery or equipment used in wood manufacturing processes, providing strength and reliability.
- Q: What are the different methods of surface powder coating for special steel?
- There are several methods of surface powder coating that are commonly used for special steel. These methods include: 1. Electrostatic powder coating: This method involves applying an electric charge to the powder particles and then spraying them onto the steel surface. The charged particles are attracted to the grounded steel, resulting in a uniform and durable coating. 2. Fluidized bed powder coating: In this method, the steel is preheated and then dipped into a fluidized bed of powder particles. The heat causes the powder to melt and form a smooth coating on the steel surface. Excess powder is then removed by shaking or blowing air. 3. Flame spray powder coating: This method involves heating the powder particles using a flame and then spraying them onto the steel surface. The heat melts the powder, which then solidifies to form a coating. Flame spray powder coating is often used for larger steel structures or for repairing damaged coatings. 4. Thermal spray powder coating: This method uses a thermal spray gun to heat and propel the powder particles onto the steel surface. The high velocity of the particles ensures good adhesion and a dense coating. Thermal spray powder coating is often used for high-wear applications or in corrosive environments. 5. UV-cured powder coating: This method involves applying a UV-sensitive powder onto the steel surface and then exposing it to UV light. The UV light initiates a chemical reaction that causes the powder to cure and form a hard coating. UV-cured powder coating is known for its fast curing time and excellent resistance to chemicals and UV radiation. Each of these methods has its own advantages and considerations, and the choice of method will depend on factors such as the specific requirements of the steel surface, the desired coating thickness, and the production volume.
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Steel Round Bar 18CrNiMo7-6 17CrNiMo6
- 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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