SCM440 Alloy Steel Round Bars Hot Forged Bar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
SCM440 Alloy Steel Round Bars Hot Forged Bar
Product Description:
1. Sizes: Diameter: 16mm-300mm; Length: 6m, 9m, 12m
2. Grade: 42CrMo, 4140,42CrMov，SCM440
3. Invoicing on theoretical weight or actual weight as customer’s request
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled, forged, cold rolled
Specification:
Material | SCM440 | Round bar | Dia(mm) | 16-600 |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12000 | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500 |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200 | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12000 |
Chemical Composition:
C | Si | Mn | Cr | Ni | Cu |
0.38~0.45 | 0.17~0.37 | 0.50~0.80 | 0.9-1.2 | ≤0.030 | ≤0.030 |
Packing and Delivery:
Packing in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: Approx.45 days
Usage and Applications:
1. SCM440 Alloy Steel Round Bars Hot Forged Bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some especial material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
Product Show:
- Q:What are the common grades of special steel?
- The common grades of special steel vary depending on the specific application and desired properties. Some of the commonly used grades include: 1. Stainless steel: This is a corrosion-resistant steel alloy that contains a minimum of 10.5% chromium. Grades such as 304, 316, and 410 are commonly used in various industries due to their excellent corrosion resistance, high strength, and good formability. 2. Tool steel: These grades are specifically designed for toolmaking and are known for their high hardness, wear resistance, and toughness. Common tool steel grades include D2, A2, O1, and S7, each having specific properties suitable for different applications. 3. High-speed steel (HSS): HSS is a type of tool steel that can retain its hardness and cutting ability even at high temperatures. It is commonly used in cutting tools such as drills, end mills, and taps. M2, M35, and M42 are some of the common grades of HSS. 4. Alloy steel: As the name suggests, alloy steel is made by adding different alloying elements to enhance specific properties. Grades such as 4140, 4340, and 8620 are commonly used due to their high strength, toughness, and wear resistance. They find applications in industries like automotive, aerospace, and machinery. 5. Spring steel: Spring steel is known for its ability to return to its original shape after being bent or twisted. Grades like 1095 and 5160 are commonly used in the manufacturing of springs, suspension components, and hand tools. These are just a few examples of the common grades of special steel. There are numerous other grades available, each with unique properties and applications. It is important to select the appropriate grade based on the specific requirements of the intended use.
- Q:What are the advantages of using special steel?
- There are several advantages of using special steel. Firstly, it has superior strength and durability compared to regular steel, making it suitable for demanding applications and harsh environments. Special steel also offers excellent resistance to corrosion, heat, and wear, increasing its lifespan and reducing maintenance costs. Additionally, its unique properties enable manufacturers to create complex and intricate designs, resulting in more efficient and lightweight products. Overall, special steel provides enhanced performance, longevity, and versatility, making it a preferred choice in various industries.
- Q:Is special steel suitable for electrical and electronic applications?
- Yes, special steel can be suitable for electrical and electronic applications. Special steel refers to steel alloys that have been specifically designed to possess certain properties or characteristics that make them suitable for particular applications. In the case of electrical and electronic applications, special steel can offer various advantages. One of the key requirements for electrical and electronic applications is high electrical conductivity. While steel is not typically known for its electrical conductivity, certain special steel alloys can be engineered to have improved electrical conductivity. For example, stainless steel can be alloyed with elements such as nickel or copper to enhance its electrical conductivity, making it suitable for applications where electrical current needs to flow efficiently. Another important factor for electrical and electronic applications is magnetic properties. Some special steel alloys exhibit excellent magnetic properties, making them ideal for applications such as transformers, motors, and generators. These alloys can possess high magnetic permeability, low coercivity, and low hysteresis losses, which are crucial for efficient energy transfer and minimal power loss. Furthermore, special steel can also provide excellent corrosion resistance, which is essential in electrical and electronic equipment that may be exposed to moisture or harsh environments. Stainless steel, for instance, is highly resistant to corrosion, ensuring the longevity and reliability of the equipment. In summary, special steel can be suitable for electrical and electronic applications when it possesses the necessary electrical conductivity, magnetic properties, and corrosion resistance. By choosing the appropriate special steel alloy, manufacturers can ensure the performance, durability, and reliability of electrical and electronic equipment.
- Q:What are the different types of special steel coatings?
- There are several different types of special steel coatings that are used to enhance the properties and performance of steel. Some of the most common types include: 1. Galvanized Coatings: This type of coating involves the application of a layer of zinc to the steel surface. Galvanized coatings provide excellent corrosion resistance, making them suitable for outdoor applications and structures exposed to harsh environments. 2. Epoxy Coatings: Epoxy coatings are known for their exceptional durability and chemical resistance. They are often used to protect steel from corrosion, abrasion, and chemical exposure. Epoxy coatings can be applied as single or multi-layer systems, enhancing the steel's lifespan and performance. 3. Powder Coatings: Powder coatings are a type of dry coating that is applied electrostatically and then cured under heat. They offer excellent protection against corrosion, impact, and UV damage. Powder coatings are available in a wide range of colors and finishes, making them a popular choice for aesthetic purposes as well. 4. Thermal Spray Coatings: These coatings involve the application of molten particles onto the steel surface using a thermal spray gun. The most common types of thermal spray coatings for steel are ceramic coatings, which provide enhanced wear resistance, thermal insulation, and corrosion protection. 5. PVD Coatings: Physical Vapor Deposition (PVD) coatings involve the deposition of thin layers of metallic or ceramic materials onto the steel surface through a vaporization process. PVD coatings provide improved hardness, wear resistance, and low friction properties to the steel. 6. Organic Coatings: Organic coatings, such as polyurethane or acrylic coatings, offer protection against corrosion, UV damage, and chemical exposure. These coatings are commonly used in architectural applications, automotive parts, and industrial equipment. 7. Chrome Plating: Chrome plating involves the deposition of a layer of chromium onto the steel surface. This coating provides excellent corrosion resistance, hardness, and a decorative finish. Chrome plating is often used in automotive applications and for decorative purposes. It is essential to select the appropriate type of special steel coating based on the specific requirements of the steel component or structure, including the level of corrosion resistance, durability, aesthetics, and environmental factors.
- Q:How is special steel used in the production of valves and fittings?
- Special steel is commonly used in the production of valves and fittings due to its high strength, corrosion resistance, and ability to withstand extreme temperatures and pressure conditions. It provides durability and reliability, ensuring the efficient functioning of valves and fittings in various industries such as oil and gas, petrochemical, and power generation. Additionally, special steel's malleability allows for intricate shaping and precision manufacturing, enabling the production of valves and fittings with complex designs and tight tolerances.
- Q:How is special steel used in the production of heat exchangers?
- Special steel, with its unique properties, finds extensive application in the production of heat exchangers. These devices are designed to transfer heat between different mediums, and special steel offers several advantages in this process. To begin with, the thermal conductivity of special steel is exceptional, allowing for efficient heat transfer between fluids. This characteristic is vital for heat exchangers as it enables the rapid and effective exchange of thermal energy. Moreover, special steel exhibits high resistance to corrosion, making it highly suitable for heat exchanger applications. Since heat exchangers often come into contact with corrosive fluids or gases, regular steel may deteriorate over time. However, special steel is specifically engineered to resist corrosion, ensuring the durability and reliability of the heat exchanger. Furthermore, special steel possesses remarkable strength and durability, enabling heat exchangers to withstand high pressures and temperatures. Given that heat exchangers frequently operate in challenging environments, special steel can endure these harsh conditions without compromising its structural integrity. Additionally, special steel offers excellent weldability and formability, simplifying the manufacturing of intricate heat exchanger designs. Its versatility allows for the production of heat exchangers in various shapes and sizes, catering to the specific requirements of different industries. In conclusion, special steel is an ideal material for heat exchanger applications due to its high thermal conductivity, corrosion resistance, strength, durability, weldability, and formability. These properties ensure efficient heat transfer, resistance to corrosion, and the ability to withstand harsh operating conditions.
- Q:Carbon steel and stainless steel and pattern steel and special steel and high carbon steel difference
- Stainless steel with high chromium content and high grade steel is forged together with different steel
- Q:What are the different cutting grades of special steel?
- Various industries commonly utilize multiple cutting grades of special steel, each possessing specific properties and characteristics tailored for different cutting applications. High-speed steel (HSS), for instance, is renowned for its exceptional hardness, wear resistance, and heat resistance, enabling it to retain its hardness under high temperatures, rendering it perfect for high-speed machining operations. Another versatile cutting grade is tool steel, celebrated for its high hardness, toughness, and abrasion resistance, making it suitable for various cutting tools, dies, and molds. Stainless steel, on the other hand, is a sought-after cutting grade due to its corrosion resistance and durability, particularly in industries where precision cutting and cleanliness are paramount, such as food, medical, and automotive sectors. Carbon steel, a commonly used cutting grade, boasts impressive strength and toughness, making it ideal for cutting tools, knives, and blades. However, it requires proper maintenance and care to prevent rusting, as it is susceptible to corrosion. Conversely, alloy steel is a cutting grade created by combining different elements to enhance its properties. It offers improved hardness, strength, and wear resistance, rendering it suitable for high-stress cutting applications prevalent in the aerospace, automotive, and construction industries. These examples merely scratch the surface of the diverse range of cutting grades of special steel available. Each grade possesses unique properties and advantages, empowering manufacturers to select the most appropriate grade based on specific cutting requirements and conditions.
- Q:What are the different forging methods used for special steel?
- Special steel can be forged using several different methods, including open die forging, closed die forging, and ring rolling. Open die forging, also known as smith forging, involves heating the metal and shaping it between flat dies or anvils. The metal is hammered and rotated repeatedly until it reaches the desired shape. This method is ideal for producing customized large and complex shapes. Closed die forging, also known as impression die forging, requires placing the heated metal between multiple dies that have impressions of the final shape. The metal is compressed to fill the impressions and take on the shape of the dies. This method is suitable for producing accurately sized small to medium components. Ring rolling is a specific forging method used to create seamless rings. The metal is heated and positioned between two rollers, which apply pressure to shape the metal into a ring. This technique is commonly used for producing rings with thin walls and large diameters. Secondary forging processes can be employed to further enhance the properties of special steel. Heat treatment, such as annealing or quenching, can improve the material's strength and hardness. Additionally, machining operations can be performed to achieve the desired dimensions and surface finish. The choice of forging method for special steel depends on factors such as the desired shape, size, and properties of the final product. Each method has its own advantages and limitations, and manufacturers select the most appropriate technique based on the specific requirements of the application.
- Q:What are the factors that affect the mechanical properties of special steel?
- The mechanical properties of special steel are affected by several factors. Some of the key factors include the chemical composition of the steel, the heat treatment process, the presence of impurities or alloying elements, the microstructure of the steel, and the manufacturing process used. These factors can greatly influence the steel's strength, hardness, toughness, ductility, and corrosion resistance.
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SCM440 Alloy Steel Round Bars Hot Forged Bar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 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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