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
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Item specifice
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:
Our Advantages:
· Industry experience over 20 years.
· Shipment of goods -More than 70 countries worldwide.
· The most convenient transport and prompt delivery.
· Competitive price with best service.
· High technical production line with top quality products.
· High reputation based on best quality products.
With our experienced, enthusiastic and dynamic staffs, we assure to bring you the products with best quality, reasonable prices and good after-sales services under the motto: Friends First, Business After.
Communication, Experience, Expertise and Best efforts are our Promises to you.
- Q:What are the main characteristics of spring steel?
- Spring steel, which is specifically designed to possess excellent elasticity and resilience, is a type of high-carbon steel. Its notable property is that it can return to its original shape after being bent or deformed, making it ideal for applications that require repeated and controlled deflection. The key characteristics of spring steel include the following: 1. High Yield Strength: Spring steel demonstrates high yield strength, meaning it can withstand significant stress before permanent deformation occurs. This enables it to bear heavy loads and resist bending or breaking under pressure. 2. Exceptional Elasticity: An important feature of spring steel is its remarkable elasticity. It can be flexed, twisted, or stretched without permanent deformation, and once the force is released, it reverts back to its original shape. This property is crucial for applications that necessitate constant and repetitive motion. 3. Superior Fatigue Resistance: Spring steel has exceptional resistance to fatigue, allowing it to endure countless cycles of stress without failure. This characteristic is crucial for products subjected to continuous and repetitive loads, such as springs in automotive suspensions or industrial machinery. 4. Good Hardness and Wear Resistance: Spring steel is typically hardened to enhance its resistance to wear. This enables it to withstand abrasion and deformation under harsh conditions, making it suitable for applications involving friction or impact, such as cutting tools or automotive components. 5. Excellent Formability: Spring steel can be easily formed into various shapes and sizes, making it highly versatile for different applications. It can be cold-drawn, rolled, or heat-treated to achieve specific mechanical properties, allowing manufacturers to customize its characteristics based on their specific requirements. In conclusion, spring steel possesses high yield strength, exceptional elasticity, superior fatigue resistance, good hardness and wear resistance, and excellent formability. These qualities make it an essential material in various industries, including automotive, aerospace, construction, and manufacturing.
- Q:How does special steel perform under high-temperature conditions?
- Special steel is specifically designed to perform well under high-temperature conditions. It exhibits excellent resistance to thermal expansion, oxidation, and creep, allowing it to maintain its structural integrity and mechanical properties when exposed to elevated temperatures. The unique composition of special steel, which often includes elements such as chromium, nickel, and molybdenum, contributes to its high-temperature performance. These alloying elements form a protective oxide layer on the surface of the steel, known as passivation, which acts as a barrier against corrosion and further enhances its resistance to high temperatures. Additionally, the microstructure of special steel is carefully controlled through various heat treatment processes, such as quenching and tempering, to achieve optimal toughness and strength even at elevated temperatures. Overall, special steel demonstrates exceptional performance and reliability in high-temperature environments, making it a preferred choice for applications such as power generation, aerospace, and petrochemical industries.
- Q:What are the challenges faced in the manufacturing process of special steel?
- To ensure the production of high-quality special steel, numerous challenges must be addressed in the manufacturing process. Some of the key challenges faced are as follows: 1. Raw material selection: It is crucial to choose the appropriate raw materials with specific alloying elements in precise proportions to achieve the desired properties of special steels. Consistently ensuring the availability and quality of these raw materials can be challenging. 2. Alloy design and composition: Designing the alloy composition to meet specific requirements can be a complex task. Achieving the desired balance of strength, hardness, toughness, corrosion resistance, and other properties necessitates thorough research, testing, and expertise. Developing new alloys with improved properties can be particularly difficult. 3. Melting and refining: Special steels are typically produced using electric arc furnaces or induction melting. Ensuring precise temperature control, proper cooling rates, and refining processes to eliminate impurities like sulfur, phosphorus, and non-metallic inclusions are crucial. Advanced technology and precise control are necessary to maintain consistent quality. 4. Heat treatment: Heat treatment is a critical step in the special steel manufacturing process. Achieving the desired microstructure and properties through processes like quenching, tempering, annealing, or precipitation hardening can be challenging. Proper temperature control, heating and cooling rates, and time durations are essential to obtain the desired properties. 5. Quality control and testing: Consistently ensuring quality throughout the manufacturing process is of utmost importance. Regular testing and inspection to detect and eliminate defects, inconsistencies, and non-conformities are necessary. This includes dimensional accuracy, mechanical properties testing, non-destructive testing, and chemical analysis. 6. Production efficiency: Special steel manufacturing often involves complex procedures and longer processing times compared to regular steel production. Optimizing the production process to maximize efficiency, minimize waste, and reduce energy consumption is an ongoing challenge. Implementing lean manufacturing principles and utilizing advanced technologies can help address these challenges. 7. Environmental considerations: The production of special steel can have a significant environmental impact. Addressing issues such as energy consumption, waste management, emissions control, and water usage is crucial for sustainable production. Complying with environmental regulations and adopting eco-friendly practices can be challenging yet necessary. Overcoming these challenges requires a combination of technical expertise, research and development, investment in advanced equipment and technologies, and an ongoing commitment to quality control and process improvement.
- Q:Can special steel be used in the aerospace industry?
- Yes, special steel can be used in the aerospace industry. Special steel alloys, such as stainless steel or titanium alloys, are commonly utilized in the aerospace industry due to their high strength-to-weight ratio, corrosion resistance, and ability to withstand extreme temperatures and pressures. These properties make special steel suitable for various components in aircraft and spacecraft manufacturing, including structural elements, engine parts, landing gears, and fasteners.
- Q:How does special steel enhance the durability of products?
- Special steel enhances the durability of products by providing them with superior strength, hardness, and resistance to corrosion and wear. Its unique composition and manufacturing processes result in a material that can withstand high pressure, extreme temperatures, and harsh environments, making it ideal for applications where regular steel would fail. This enhanced durability ultimately leads to longer product lifespans, increased reliability, and reduced maintenance costs.
- Q:Classification of special steel products
- Carbon steel, also called carbon steel, is an iron carbon alloy with a carbon content of less than 2% wc. Carbon steel, in addition to carbon, usually contains a small amount of silicon, manganese, sulfur and phosphorus.Carbon steels can be divided into three categories: carbon structural steel, carbon tool steel and free cutting structural steel by use. Carbon structural steel can be divided into two kinds of structural steel and machine building steel.
- Q:How does spring steel maintain its elasticity?
- Spring steel maintains its elasticity due to its unique composition and manufacturing process. It is made from a specific type of high-carbon steel that undergoes a specialized heat treatment called quenching and tempering. This process involves heating the steel to a high temperature and then rapidly cooling it in water or oil, followed by reheating to a specific temperature and allowing it to cool slowly. This heat treatment creates a fine-grained microstructure in the steel, which gives it the ability to withstand repeated bending or twisting without permanently deforming. Additionally, the high carbon content in spring steel enhances its strength and resilience, allowing it to return to its original shape even after being subjected to significant force or pressure.
- Q:How does special steel perform in impact loading conditions?
- Special steel is known for its exceptional performance in impact loading conditions. Due to its unique composition and manufacturing process, special steel exhibits remarkable strength, toughness, and resistance to deformation. When subjected to impact loading, special steel can effectively absorb and dissipate the energy generated, minimizing the risk of catastrophic failure or damage. The high strength of special steel allows it to withstand high impact forces without undergoing significant deformation or fracture. This characteristic makes it particularly suitable for applications where impact loading is prevalent, such as in the construction of heavy machinery, automotive components, and structural elements. Special steel's toughness is another crucial factor in its performance during impact loading conditions. It possesses excellent fracture toughness, enabling it to resist crack propagation and absorb impact energy without fracturing. This property ensures that special steel can withstand sudden and severe impacts without compromising its structural integrity. Additionally, special steel is often treated to enhance its resistance to impact loading conditions further. Processes such as heat treatment, forging, and quenching and tempering can increase the material's hardness and strength, making it even more capable of withstanding impact forces. In summary, special steel performs exceptionally well in impact loading conditions due to its high strength, toughness, and resistance to deformation. Its ability to absorb and dissipate energy efficiently, coupled with its resistance to fracture, makes it an ideal choice for applications where impact loading is a concern.
- Q:How does special steel contribute to the manufacturing of gears?
- Due to its unique properties and characteristics, special steel is essential in the production of gears. Gears, which are mechanical devices that facilitate the transmission of power and motion between rotating shafts, require the ability to withstand high loads, operate at high speeds, and maintain precise dimensions for smooth and efficient performance. Special steel, with its enhanced mechanical properties and superior quality, provides the necessary strength, durability, and wear resistance needed for gear manufacturing. A key aspect of special steel is its high strength and hardness. Gears often endure heavy loads and experience significant stress during operation. Special steel, such as alloy steel or tool steel, possesses exceptional strength, enabling gears to handle these loads without deformation or failure. Additionally, the hardness of special steel ensures that gears can withstand abrasive wear and prevent damage caused by external factors like friction and contact with other components. Special steel also contributes to gear manufacturing by offering excellent fatigue resistance. Gears are exposed to repetitive cyclic loading, which, if not properly designed and manufactured, can result in fatigue failure over time. Special steel, with its unique microstructure and composition, enhances the fatigue life of gears by minimizing crack propagation and reducing the risk of failure, ensuring long-term reliability and performance. Furthermore, special steel provides excellent machinability and dimensional stability, two critical factors in gear manufacturing. The machinability of special steel allows for precise shaping and cutting of gear teeth, ensuring accurate dimensions and smooth gear operation. The dimensional stability of special steel helps to maintain the gear's shape and integrity under various temperature and environmental conditions, guaranteeing consistent performance throughout its lifespan. In conclusion, special steel plays a significant role in gear manufacturing by supplying the necessary strength, durability, wear resistance, fatigue resistance, machinability, and dimensional stability. Gears made from special steel can endure high loads, operate at high speeds, and maintain precise dimensions, ultimately contributing to the efficient functioning of various machinery and mechanical systems.
- Q:How does special steel perform in magnetic applications?
- Special steel performs well in magnetic applications due to its high magnetic permeability and low electrical conductivity. This allows it to efficiently conduct and concentrate magnetic fields, making it ideal for various magnetic devices and applications such as transformers, motors, generators, and magnetic sensors. Additionally, special steel can exhibit excellent magnetic properties such as high saturation magnetization and low coercivity, making it capable of generating strong magnetic fields and maintaining magnetization even in challenging conditions.
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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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