20MnCr5 42CrMo4 4340 Alloy Steel Round Bar
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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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Item specifice
Type:
Alloy Steel
Shape:
Steel Round Bar
20MnCr5 42CrMo4 4340 Alloy Steel Round Bar
Product Information:
1.Grade: 20MnCr5 42CrMo4 4340
2.Dia:12-300mm
3.Length:3-12m
4.Hot rolled
5.MOQ: 30mt per size
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 is the role of special steel in the automotive industry?
- Special steel plays a crucial role in the automotive industry by providing high strength, durability, and resistance to wear and corrosion. It is used in various components such as engine parts, chassis, suspension systems, and safety features. Special steel helps enhance the overall performance, safety, and fuel efficiency of vehicles, making it an essential material for the automotive industry.
- Q:Can special steel be used in the production of kitchen utensils?
- Yes, special steel can be used in the production of kitchen utensils. Special steel, such as stainless steel, offers excellent durability, corrosion resistance, and hygiene, making it a popular choice for kitchen utensils. It can withstand high temperatures, resist staining, and is easy to clean, making it suitable for various cooking and food preparation tasks.
- Q:How does special steel perform in extreme heat conditions?
- Special steel is specifically engineered to excel in situations with intense heat. It showcases remarkable endurance against thermal fatigue, oxidation, and creep, rendering it ideal for applications that involve exposure to extreme heat. The distinctive composition and processing techniques employed in the production of special steel enable it to maintain its mechanical properties and structural integrity even when subjected to elevated temperatures. One of the primary attributes of special steel is its elevated melting point, which prevents it from easily melting or deforming under extreme heat. This characteristic holds significant importance in industries like aerospace, power generation, and automotive, where components must endure high temperatures while retaining their shape and functionality. Moreover, special steel possesses exceptional heat resistance, allowing it to effectively withstand and dissipate heat without compromising its strength or becoming brittle. This quality ensures that the steel remains durable and dependable even when exposed to prolonged periods of high temperatures. Additionally, special steel demonstrates exceptional resistance to oxidation, forming a protective layer on its surface that shields it from corrosion or degradation when exposed to oxygen at high temperatures. This resistance to oxidation enables special steel to sustain its performance and structural integrity over extended periods, making it highly suitable for applications in extreme heat conditions. In conclusion, special steel excels in extreme heat conditions due to its elevated melting point, heat resistance, and oxidation resistance. Its ability to withstand thermal fatigue, oxidation, and creep establishes it as a reliable and durable option for applications requiring superior performance in high-temperature environments.
- Q:What are the different methods of controlling the grain size in special steel?
- Some of the different methods of controlling the grain size in special steel include thermomechanical processing, alloying elements, grain refinement techniques such as grain size control agents, and heat treatment methods like annealing and quenching.
- Q:How does special steel resist wear and tear?
- Special steel resists wear and tear due to its unique composition and manufacturing process. It is typically alloyed with elements like chromium, nickel, and molybdenum, which enhance its hardness, strength, and corrosion resistance. Additionally, special steel undergoes heat treatment processes such as quenching and tempering, which further increase its durability and ability to withstand various mechanical stresses. This combination of alloying elements and heat treatment results in a steel that is highly resistant to wear, friction, and fatigue, making it suitable for demanding applications where durability is crucial.
- Q:What are the different methods of surface anodizing for special steel?
- Surface anodizing for special steel can be achieved through various methods, each with its own advantages and applications. Below are some of the different techniques available: 1. Chromic Acid Anodizing: By immersing the steel in a chromic acid solution, a thin, hard, and corrosion-resistant oxide layer forms on its surface. This method is particularly effective for enhancing durability and aesthetic appeal, as it enables excellent adhesion for paint and other coatings. 2. Sulfuric Acid Anodizing: Widely utilized, this method involves immersing the steel in a sulfuric acid bath and applying a direct current to create an oxide layer on the surface. It offers exceptional corrosion resistance, increased hardness, and improved wear resistance. Additionally, it provides a solid foundation for achieving various colors and finishes by applying dyes or sealing. 3. Phosphoric Acid Anodizing: Primarily used for stainless steel, phosphoric acid anodizing entails immersing the steel in a phosphoric acid solution and applying a direct current. This process generates a protective oxide layer that enhances corrosion resistance and yields a uniform matte finish. Phosphoric acid anodizing is commonly employed in applications where aesthetics are not a priority. 4. Titanium Anodizing: This method involves anodizing steel using titanium electrodes, resulting in a thick oxide layer on the surface. The outcome is improved corrosion resistance, increased hardness, and enhanced wear resistance. Titanium anodizing finds significant usage in industries like aerospace, where robust and durable surface properties are vital. 5. Hard Anodizing: Distinguished by its specialized nature, hard anodizing produces a thick and highly durable oxide layer on the steel surface. It achieves this by employing higher voltage and lower temperature during the anodizing process. Consequently, it enhances hardness, wear resistance, and electrical insulation properties. Hard anodizing is particularly valuable for applications requiring superior abrasion resistance, such as parts exposed to heavy wear or friction. These are merely a few examples of the various methods available for surface anodizing of special steel. The selection of the most suitable technique depends on specific application requirements, desired properties, and the type of steel being treated. It is crucial to consult with industry experts to determine the optimal anodizing method for a particular steel application.
- Q:What are the main advantages of using special steel in the construction of bridges?
- The main advantages of using special steel in the construction of bridges are its high strength, durability, and resistance to corrosion. Special steel, such as high-strength low-alloy steel or weathering steel, can withstand heavy loads and extreme weather conditions, making it ideal for bridge construction. Its superior strength allows for the design of lighter and more cost-effective structures. Additionally, special steel's resistance to corrosion reduces maintenance and repair costs, ensuring the longevity and safety of the bridge.
- Q:How does special steel contribute to reducing product defects?
- Special steel contributes to reducing product defects by offering superior strength, durability, and corrosion resistance compared to regular steel. This ensures that the components made from special steel are less prone to breakage, wear and tear, or damage during manufacturing, transportation, or usage. Special steel's high-quality characteristics provide a more reliable and consistent performance, resulting in fewer product defects and improved overall product quality.
- Q:Can special steel be used in the telecommunications equipment manufacturing industry?
- Yes, special steel can be used in the telecommunications equipment manufacturing industry. Special steel, such as stainless steel or alloy steel, offers various advantages such as high strength, corrosion resistance, and heat resistance. These properties make it suitable for manufacturing various components used in telecommunications equipment, including antennas, towers, cable connectors, and enclosures. Additionally, the use of special steel can enhance the durability and performance of the equipment in challenging environments, such as extreme temperatures or exposure to harsh weather conditions.
- Q:How does the hardness of special steel affect its performance?
- The performance of special steel is heavily influenced by its hardness, which is determined by its ability to resist indentation, scratching, or deformation. This property is directly linked to the steel's microstructure and carbon content. When special steel is hardened, it goes through a heat treatment process, which typically involves rapid cooling or quenching after being heated to high temperatures. This process alters the steel's microstructure, resulting in a harder material. The increased hardness brings several advantages to the performance of special steel. Firstly, a higher level of hardness enhances the wear resistance of special steel. This is particularly important in applications where the steel is exposed to abrasive or erosive forces, such as cutting tools or machinery components. A harder steel can endure these forces without significant wear or damage, leading to improved longevity and reliability. Secondly, the hardness of special steel affects its strength and toughness. A harder steel generally exhibits higher strength, enabling it to withstand greater forces without permanent deformation or failure. This property is beneficial in applications where the steel faces heavy loads or impacts. Additionally, a certain level of toughness is necessary to prevent brittle fractures. While high hardness can make a steel more brittle, careful heat treatment can strike a balance between hardness and toughness, ensuring the steel remains strong and resistant to fracture. Furthermore, the hardness of special steel also influences its machinability. Hardened steel can be more difficult to machine due to its increased resistance to cutting tools. However, it offers greater dimensional stability and precision during machining operations, resulting in more accurate and consistent results. In conclusion, the hardness of special steel has a significant impact on its performance. A higher level of hardness provides improved wear resistance, strength, and toughness, making it suitable for demanding applications. However, it is crucial to carefully consider the balance between hardness and toughness to avoid brittleness. Therefore, understanding and controlling the hardness of special steel is essential for optimizing its performance in various industries.
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20MnCr5 42CrMo4 4340 Alloy Steel Round Bar
- 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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