Alloy Steel 40Mn Round Bar CNBM 16MM-300MM
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
Type:
Gear Steel
Shape:
Steel Round Bar
Alloy round steel bar 40Mn
Product Description
1. Sizes: Diameter: 16mm-300mm; Length: 6m, 9m, 12m
2. Grade: 40Mn
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 | 40Mn | 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 |
0.5~0.8 | 0.17~0.37 | 0.25~1.2 | ≤0.25 | ≤0.30 | ≤0.25 |
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. Steel round 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 main characteristics of high-speed steel?
- High-speed steel is known for its exceptional hardness, toughness, and heat resistance. It can maintain its hardness even at high temperatures, making it ideal for cutting tools and machining applications. Additionally, high-speed steel has excellent wear resistance, allowing it to withstand heavy usage and prolong tool life. It also has good machinability and can be easily shaped into various cutting tools.
- Q:What are the different methods of surface etching for special steel?
- Some of the different methods of surface etching for special steel include chemical etching, electrochemical etching, and laser etching. Chemical etching involves using a specific chemical solution or acid to selectively remove material from the surface of the steel, creating a desired pattern or design. Electrochemical etching, also known as electroetching or electrolytic etching, utilizes an electric current to dissolve the surface of the steel and create the desired etched pattern. Laser etching, on the other hand, employs a high-powered laser beam to remove material from the surface of the steel, resulting in a precise and intricate etched design. Each method has its own advantages and suitability depending on the specific requirements and characteristics of the special steel being etched.
- Q:How does special steel contribute to reducing product waste?
- Special steel contributes to reducing product waste by offering superior strength, durability, and corrosion resistance. This allows manufacturers to produce longer-lasting and more reliable products, minimizing the need for frequent replacements. Additionally, special steel's high precision and customization capabilities enable the creation of components with tight tolerances, reducing the risk of assembly errors and subsequent product failures. Consequently, special steel helps optimize product performance and longevity, thereby reducing waste generated from premature product disposal.
- Q:How does surface treatment enhance the performance of special steel?
- Surface treatment enhances the performance of special steel by improving its corrosion resistance, wear resistance, and surface hardness, thereby increasing its durability, longevity, and overall performance in various applications.
- Q:What are the different heat treatment processes used for special steel?
- There are several heat treatment processes commonly used for special steel, including annealing, normalizing, quenching, tempering, and case hardening. Annealing involves heating the steel to a specific temperature and then slowly cooling it, which helps to improve its ductility and relieve internal stresses. Normalizing is similar to annealing but involves air cooling the steel after heating, resulting in a more uniform grain structure. Quenching is a process where the steel is rapidly cooled in a liquid medium, such as water or oil, to achieve high hardness and strength. Tempering follows quenching and involves reheating the steel to a lower temperature, reducing its hardness and increasing toughness. Case hardening is a surface hardening process where the steel is heated in the presence of a carbon-rich material, creating a hardened outer layer while maintaining a softer core. These heat treatment processes are used to enhance the mechanical properties and performance of special steel for various applications.
- Q:What are the different machining methods for special steel?
- There are several machining methods for special steel, including turning, milling, drilling, grinding, and broaching. Each method is chosen based on the specific requirements of the project, such as the desired shape, surface finish, and dimensional accuracy. These machining methods allow for the precise shaping and finishing of special steel to meet the desired specifications and applications.
- Q:What are the different corrosion-resistant special steel alloys?
- Various industries commonly utilize several corrosion-resistant special steel alloys. Among the most popular are stainless steel, duplex stainless steel, super duplex stainless steel, and nickel-based alloys. Stainless steel, which contains a minimum of 10.5% chromium, is a widely used corrosion-resistant alloy. It forms a protective layer of chromium oxide on its surface, effectively preventing further corrosion. This alloy exhibits high resistance to rust, staining, and pitting, making it suitable for applications in the food processing, chemical, and marine industries. Duplex stainless steel, a combination of austenitic and ferritic stainless steels, offers excellent corrosion resistance, particularly in environments with high chloride ion concentrations. It finds common use in the oil and gas, chemical, and desalination industries. Super duplex stainless steel, being a stronger variation of duplex stainless steel, provides enhanced corrosion resistance and mechanical properties. This makes it ideal for applications in harsh environments like offshore oil and gas platforms, chemical processing plants, and seawater desalination systems. Nickel-based alloys, including Inconel and Hastelloy, are renowned for their exceptional resistance to corrosion and high-temperature environments. These alloys find widespread use in industries such as aerospace, chemical processing, and power generation, where both corrosion and heat resistance are critical. These corrosion-resistant special steel alloys offer a range of options for industries seeking materials with superior durability and resistance to corrosive environments. The choice of alloy depends on the specific application, operating conditions, and desired performance characteristics.
- Q:How does special steel maintain its strength at different temperatures?
- Special steel maintains its strength at different temperatures due to its unique composition and heat treatment process. It is alloyed with elements like chromium, nickel, and molybdenum, which form stable compounds at high temperatures, preventing the steel from losing its strength. The heat treatment process involves carefully controlling the cooling rate, which further enhances the steel's microstructure and ensures its strength is retained even at extreme temperatures.
- Q:What are the main applications of special steel in the shipbuilding industry?
- Special steel is widely used in the shipbuilding industry for various applications. Some of the main applications include the construction of ship hulls, decks, and superstructures, as well as the manufacturing of critical components such as propeller shafts, rudders, and marine engines. The high strength, corrosion resistance, and toughness of special steel make it ideal for withstanding the harsh marine environment and ensuring the safety and durability of ships.
- Q:What are the different methods of joining special steel?
- There are several methods of joining special steel, each with its own advantages and limitations. Some of the most common methods include: 1. Welding: This is the most widely used method of joining steel. It involves melting the base material and adding a filler material to create a strong bond. Different welding techniques such as arc welding, gas welding, and laser welding can be used depending on the specific requirements. 2. Brazing: This method involves heating the steel and melting a filler metal with a lower melting point, which then flows into the joint by capillary action. Brazing is often used when joining dissimilar metals or when a lower-temperature joining process is needed. 3. Soldering: Similar to brazing, soldering also uses a lower melting point filler material to join the steel. However, soldering involves melting the filler material without melting the base material. It is commonly used for electrical connections and delicate applications. 4. Mechanical fastening: This method involves joining the steel components using mechanical means such as bolts, screws, rivets, or other types of fasteners. Mechanical fastening is often preferred in situations where disassembly or maintenance is required. 5. Adhesive bonding: Special steel can also be joined using adhesives that create a strong bond between the surfaces. Adhesive bonding is suitable for joining complex shapes, reducing stress concentrations, and providing excellent corrosion resistance. 6. Friction welding: This technique involves rubbing or spinning two steel components together under pressure to generate heat, which then creates a bond. Friction welding is commonly used for joining high-strength or heat-treated steels. 7. Explosive welding: This method involves using explosives to create a high-speed collision between two steel surfaces, resulting in a solid-state bond. Explosive welding is often used for joining dissimilar metals or when high strength and corrosion resistance are required. The choice of joining method depends on factors such as the type of steel, the desired strength and durability of the joint, the specific application requirements, and the available equipment and expertise.
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Alloy Steel 40Mn Round Bar CNBM 16MM-300MM
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 500000 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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