Steel Round Bar 18CrNiMo7-6 17CrNiMo6
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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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- Q: What are the different oil and gas grades of special steel?
- There are several different oil and gas grades of special steel, including but not limited to API 5CT, API 5L, and ASTM A106. These grades are specifically designed to meet the requirements and demands of the oil and gas industry, ensuring high strength, corrosion resistance, and durability in harsh environments.
- Q: What is the significance of carbon content in special steel?
- The carbon content in special steel is significant as it determines the steel's strength, hardness, and overall performance. Higher carbon content usually results in increased hardness and strength, making it suitable for applications that require high durability and resistance to wear. On the other hand, lower carbon content enhances the steel's ductility and ease of machining. The right balance of carbon content in special steel allows manufacturers to tailor the material to specific needs, ensuring optimal performance in various industries such as automotive, aerospace, and construction.
- Q: What are the heat treatment processes used for special steel?
- Some of the heat treatment processes used for special steel include annealing, quenching, tempering, and hardening. Annealing involves heating the steel to a specific temperature and slowly cooling it to improve its ductility and reduce internal stress. Quenching is a rapid cooling process that hardens the steel by quickly cooling it from a high temperature, creating a tough and wear-resistant material. Tempering is a process that follows quenching, where the steel is reheated to a lower temperature to reduce brittleness and improve toughness. Hardening involves heating the steel to a high temperature and then rapidly cooling it to increase its hardness and strength. These heat treatment processes are used to enhance the properties and performance of special steel for various applications.
- Q: Can special steel be used for nuclear power plant components?
- Yes, special steel can be used for nuclear power plant components. Nuclear power plants require materials that can withstand high temperatures, pressure, and radiation exposure. Special steel, also known as stainless steel, possesses excellent corrosion resistance, high strength, and good mechanical properties, making it suitable for various components such as reactor vessels, steam generators, and piping systems in nuclear power plants. Additionally, special steel's ability to maintain its integrity under harsh conditions minimizes the risk of failure and ensures the safety and reliability of nuclear power plants.
- Q: How does special steel contribute to reducing product failure?
- Special steel contributes to reducing product failure by providing enhanced mechanical properties and superior resistance to wear, corrosion, and fatigue. Its exceptional strength, toughness, and durability allow for the production of components that can withstand high stress, extreme temperatures, and harsh environments, minimizing the risk of failure. Additionally, special steel's precise composition and controlled manufacturing processes ensure consistent quality and reliability, reducing the likelihood of defects or weaknesses that could lead to product failure.
- Q: Can special steel be used for tooling applications?
- Yes, special steel can be used for tooling applications. Special steels, such as high-speed steels and tool steels, are specifically designed and manufactured to have superior properties for tooling purposes. These steels possess characteristics such as high hardness, wear resistance, toughness, and heat resistance, making them ideal for tooling applications where durability and performance are crucial.
- Q: What are the different heat treatment processes used in special steel?
- Some of the different heat treatment processes used in special steel include annealing, normalizing, tempering, quenching, and case hardening.
- Q: What are the different defense grades of special steel?
- Enhanced properties are possessed by special steel, which is a distinct category of steel that is specifically designed. These properties include increased strength, durability, and resistance to various environmental factors. In the realm of defense applications, special steel is frequently utilized to produce armor and protective components for military vehicles, aircraft, and naval vessels. The defense grades of special steel are classified based on their specific characteristics and performance levels. One of the most commonly utilized defense grades of special steel is referred to as ballistic steel. Ballistic steel is engineered to offer exceptional resistance against ballistic threats, which encompass bullets and shrapnel. It possesses high tensile strength and hardness, which enables it to endure the impact and penetration of projectiles. Several grades of ballistic steel exist, such as MIL-A-46100, MIL-A-12560, and AR500, each providing varying levels of protection against different types of ammunition. Another defense grade of special steel is known as blast-resistant steel. This form of steel is designed to withstand explosions and minimize the damage caused by shockwaves, fragmentation, and heat. It is commonly employed in the construction of blast-resistant walls, doors, and windows for military bases, embassies, and critical infrastructure facilities. Blast-resistant steel grades are classified based on their capacity to withstand different levels of explosive forces, with higher grades offering greater protection. Furthermore, specialized grades of special steel are employed for anti-vehicle applications. These grades, such as Armox and Ramor, are engineered to resist the impact of heavy-caliber projectiles and explosive devices, making them suitable for the production of armored vehicles and personnel carriers. They possess a combination of high hardness, toughness, and energy absorption properties, ensuring the safety of military personnel on the battlefield. In conclusion, the defense grades of special steel are varied and tailored to meet the specific requirements of diverse defense applications. They provide essential protection and ensure the safety of military personnel and equipment in challenging and hostile environments. The appropriate grade is chosen based on the nature of the threat, the level of protection required, and the specific design and performance criteria of the defense application.
- Q: What are the different heat treatment grades of special steel?
- There are several different heat treatment grades of special steel, each with its own unique properties and applications. Some of the commonly used heat treatment grades include: 1. Annealed Steel: This grade of special steel is treated through the annealing process, which involves heating the steel to a specific temperature and then cooling it slowly to enhance its ductility and reduce its hardness. Annealed steel is typically used in applications where toughness and machinability are required. 2. Normalized Steel: Normalizing is a heat treatment process that involves heating the steel above its critical temperature and then cooling it in still air. This treatment refines the grain structure of the steel, improves its mechanical properties, and reduces internal stresses. Normalized steel is often used in applications where high strength and good weldability are desired. 3. Quenched and Tempered Steel: This grade of special steel undergoes a two-step heat treatment process. Firstly, the steel is heated to a high temperature and then rapidly cooled in a quenching medium such as oil or water. This process results in a hardened and brittle steel. To regain some toughness and reduce brittleness, the steel is then tempered by reheating it to a lower temperature. Quenched and tempered steel is commonly used in applications that require high strength, such as construction machinery, mining equipment, and automotive parts. 4. Precipitation Hardening Steel: This grade of special steel is treated by a combination of heat treatment and precipitation hardening. The steel is initially solution treated at high temperatures to dissolve alloying elements, followed by rapid cooling to retain a supersaturated solid solution. Subsequently, the steel is aged at a lower temperature for a specific period of time, allowing the formation of fine precipitates that contribute to increased strength and hardness. Precipitation hardening steel is utilized in applications where high strength and corrosion resistance are essential, such as aerospace components and high-performance tools. 5. Case Hardening Steel: Case hardening is a surface heat treatment process used to increase the hardness of the outer layer of steel while maintaining a tough and ductile core. This is achieved by carburizing or nitriding the steel, which introduces carbon or nitrogen into the surface layer, respectively. Case hardening steel is commonly used in applications requiring wear resistance, such as gears, bearings, and camshafts. These are just a few examples of the various heat treatment grades available in special steel. Each grade offers unique properties and advantages, allowing for a wide range of applications across different industries.
- Q: How are magnesium alloys used in lightweight structures?
- Magnesium alloys are used in lightweight structures due to their exceptional strength-to-weight ratio. They are commonly employed in the aerospace industry for constructing aircraft components, such as fuselage frames, wings, and engine parts. Additionally, magnesium alloys find applications in automotive manufacturing, where they contribute to reducing the weight of vehicles, thus enhancing fuel efficiency. These alloys are also utilized in the production of portable devices, sporting equipment, and other products that require a combination of strength and lightness.
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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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