Steel Round Bar/High Alloy Round Tool Steel Bar/M2/M25M42/D2
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 44 m.t.
- Supply Capability:
- 2000000 m.t./month
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Description of steel round bar:
Characteristic:Tungsten-molybdenum high speed steel developed by China,high performance in toughness ,hardness, high temperature hardness.
Festures of steel round bar:
Anneal temperature: 840-860
Relief annealing temperature: 720-760
Hardening temperature: 1210-1230
Specifications of steel round bar:
The highest temperature is 427 degrees Celsius.it has good strength,and high quenching property ,the toughness is good and small deformation during quenching.At high temperature, there are high creep strength and endurance strength.It is used in the manufacture of a higher strength and higher quenching and tempering section of the 35CrMo steel, like big locomotive traction gears, supercharger drive gear, rear axle, the connecting rod and the spring load greatly clip.
| C | Si | Mn | W | Mo | Cr | V | P | S |
| 0.80-0.90 | 0.20-0.45 | 0.15-0.40 | 5.50-6.75 | 4.50-5.50 | 3.80-4.40 | 1.75-2.20 | ≤0.030 | ≤0.030 |
Images of steel round bar:
FAQ:
1. What is your package?
Packing situation: standard seaworthy packing or as customer required.
2. How long is the lead time?
Delivery time: 45 days after order confirmed.
- Q: How do steel round bars compare to cast iron bars?
- Steel round bars are generally considered to be stronger and more durable than cast iron bars. Steel has a higher tensile strength and can withstand greater loads and stress without deforming or breaking. Additionally, steel is more resistant to corrosion and has a higher melting point compared to cast iron. Another advantage of steel round bars is their versatility. Steel can be easily machined, welded, and formed into various shapes, making it suitable for a wide range of applications. Cast iron, on the other hand, is brittle and difficult to work with. It has limited malleability and tends to crack or chip under stress. However, cast iron bars have their own unique properties that make them suitable for specific applications. Cast iron is known for its excellent heat retention and distribution, making it ideal for applications such as cookware and engine blocks. It also has good vibration damping properties, which can be beneficial in certain industrial applications. In summary, while steel round bars are generally considered to be superior in terms of strength, durability, and versatility, cast iron bars have their own specific advantages in certain applications. The choice between the two will ultimately depend on the specific requirements and conditions of the intended use.
- Q: What is the difference between a rough turned and a precision ground steel round bar?
- A rough turned steel round bar refers to a steel bar that has undergone a rough machining process to remove excess material and bring the bar to a closer approximation of its final dimensions. This process typically involves removing the outer layer of the bar through turning or other machining methods. However, the bar is not yet finished to precise tolerances and may still have slight variations in diameter or surface roughness. On the other hand, a precision ground steel round bar has undergone a secondary machining process known as grinding. Grinding is a more precise and controlled method of removing material from the surface of the bar. It involves using a grinding wheel or abrasive tool to carefully remove small amounts of material, resulting in a bar with highly precise dimensions and a smoother surface finish. Precision ground bars are typically made to meet specific tolerances and have a more consistent diameter, surface finish, and straightness compared to rough turned bars. The main difference between a rough turned and a precision ground steel round bar is the level of precision and surface finish achieved. Rough turned bars are suitable for applications where tight tolerances and surface finish are not critical, such as in certain structural or machinery components. Precision ground bars, on the other hand, are preferred when precise dimensions, tight tolerances, and a smooth surface finish are required, such as in precision machining applications or where the bar will be used as a shaft or component in critical machinery or equipment.
- Q: What are the advantages of using high-speed steel round bars?
- High-speed steel (HSS) round bars have several advantages. Firstly, they offer excellent hardness, allowing them to withstand high temperatures and wear. This makes them suitable for cutting tools and machine parts that undergo intense friction and heat. Additionally, HSS round bars have superior toughness, enabling them to resist chipping and breaking during heavy-duty applications. Furthermore, their high thermal conductivity helps dissipate heat efficiently, preventing damage to the material being worked on and prolonging tool life. Lastly, HSS round bars have good dimensional stability, ensuring accurate and precise machining results.
- Q: How are steel round bars classified based on their shape?
- Steel round bars are classified based on their shape as either hot-rolled or cold-drawn round bars.
- Q: Can steel round bars be used in the manufacturing of pumps?
- Yes, steel round bars can be used in the manufacturing of pumps. Steel round bars are commonly used in various industries for their strength, durability, and versatility. In pump manufacturing, steel round bars are often used as shafts or rotors due to their ability to withstand high pressure and rotational forces. The steel round bars can be machined, forged, or heat-treated to meet the specific requirements of the pump design. Additionally, steel round bars provide excellent corrosion resistance, making them suitable for pumps used in various environments. Overall, steel round bars are a reliable and commonly used material in pump manufacturing.
- Q: Can steel round bars be used in the pharmaceutical industry?
- Yes, steel round bars can be used in the pharmaceutical industry. Steel round bars are commonly used in various industries, including pharmaceuticals, due to their strength, durability, and versatility. In the pharmaceutical industry, steel round bars can be utilized for a range of applications such as manufacturing equipment, machinery, and storage systems. These bars can be used to construct pharmaceutical manufacturing equipment like mixers, reactors, and centrifuges, which require robust and reliable materials to ensure efficiency and safety in pharmaceutical production processes. Additionally, steel round bars can be employed in the construction of storage systems such as racks and shelves, providing a sturdy and secure solution for organizing pharmaceutical products and supplies. The corrosion resistance and ease of cleaning of steel make it suitable for maintaining hygienic conditions in pharmaceutical facilities. Overall, steel round bars offer the pharmaceutical industry a reliable and cost-effective material option for various applications.
- Q: What are the different types of defects that can occur in steel round bars?
- Steel round bars can experience a range of defects that differ in severity and impact on overall quality and performance. Common types of defects include surface defects, internal defects, dimensional defects, decarburization, lamination, and incomplete heat treatment. Surface defects, such as scratches, pits, and scaling, are visible on the external surface of the bar. While these defects may not compromise the bar's structural integrity, they can affect its aesthetic appeal and potentially lead to corrosion if not addressed properly. Internal defects, like voids, inclusions, and segregation, occur within the body of the bar. These defects can weaken the bar's mechanical properties, jeopardize its structural integrity, and even cause cracking or failure under stress. Dimensional defects refer to variations in the size or shape of the bar, such as differences in diameter, length, or straightness. These defects can occur during manufacturing and can impact the bar's functionality and compatibility with other components. Decarburization is a defect that arises when the surface layer of the bar loses carbon due to exposure to high temperatures during manufacturing or heat treatment. This defect weakens the bar's hardness and strength, making it more susceptible to wear, fatigue, or failure. Lamination defects occur when there are layers or separations within the bar, often resulting from inadequate rolling or processing techniques. These defects reduce the bar's strength and ductility, making it prone to fracture or failure. Incomplete heat treatment can occur if the process is not performed correctly or if there are inconsistencies in cooling or reheating. This can lead to variations in hardness, strength, or toughness along the length of the bar. Manufacturers and quality control teams employ various testing and inspection methods to detect and mitigate these defects, ensuring that the bars meet the necessary standards and specifications. It is crucial to consider the specific application and requirements of the steel round bar when assessing the severity and impact of these defects.
- Q: What kind of steel pipe is round steel?
- First of all, this is the two concept, round steel solid, hollow steel pipe; secondly, the round bar is divided into hot rolling, forging and cold drawn three. Generally seamless steel pipe can be divided into hot rolling (extrusion), cold rolling (pull), heat expansion of the basic types of steel pipe. Hope to be of help to you
- Q: What are the different heat treatment methods for steel round bars?
- Steel round bars can undergo various heat treatment methods to enhance their mechanical properties and overall performance. These methods, namely annealing, normalizing, quenching, tempering, and case hardening, are commonly employed. 1. Annealing: By subjecting the steel round bars to a specific temperature and maintaining it for a certain duration, annealing achieves a uniform microstructure. This treatment alleviates internal stresses, improves ductility, and enhances machinability. 2. Normalizing: This technique involves heating the steel round bars slightly above their critical transformation temperature and subsequently cooling them in still air. Normalizing refines the grain structure, enhances mechanical properties, and improves resistance to impact and fatigue. 3. Quenching: The process of quenching entails heating the steel round bars above their critical temperature and rapidly cooling them by immersion in a quenching medium like oil, water, or brine. This rapid cooling hardens the steel, rendering it stronger and more resistant to wear and abrasion. However, quenched steel may exhibit brittleness, necessitating additional heat treatment steps. 4. Tempering: Following the quenching process, tempering is often employed to reduce brittleness and enhance toughness. Tempering involves reheating the quenched steel to a specific temperature and holding it there for a designated time, followed by gradual cooling. This procedure alleviates internal stresses, improves ductility, and enhances overall toughness and machinability. 5. Case Hardening: Case hardening is a surface heat treatment method that increases the hardness of the outer layer of steel round bars while maintaining a relatively softer core. This technique involves heating the steel in a carbon-rich environment, such as a gas or salt bath, and subsequently quenching it to achieve a hardened outer layer. Case hardening improves wear resistance and fatigue strength, making it suitable for applications requiring high surface hardness. It is crucial to note that the selection of the specific heat treatment method for steel round bars depends on the desired mechanical properties and intended application. Manufacturers meticulously choose the appropriate heat treatment method based on factors such as steel composition, desired hardness, and required strength.
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Steel Round Bar/High Alloy Round Tool Steel Bar/M2/M25M42/D2
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 44 m.t.
- Supply Capability:
- 2000000 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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