HSS Steel Round Bar Alloy Round Tool Steel Bar/M2/M25M42/D2/H13
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 556 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
Hardening medium: salt bath under 600,aslo use oil cooling or air cooling
Normal temper temperation: 540-560 RC Rockwell Hardness after hardening and temperature: 63-66
Production Capacity: 1000 Tons/Month
Tech:EAF+LF+VD+ESR
High strength at elevated temperatures
Specifications of steel round bar:
| 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.
3. What payment term do you accept?
Payment: T/T or L/C at sight.
- Q: What is the difference between a forged and a peeled steel round bar?
- A forged steel round bar and a peeled steel round bar are both types of steel bars used in various industries for different applications. However, there are distinct differences between the two in terms of their manufacturing processes and physical characteristics. A forged steel round bar is made by heating a solid steel billet to a high temperature and then applying pressure to shape it into the desired form. This process involves the use of machinery, such as hammers or presses, to shape the steel and create the round bar. The forging process imparts strength and durability to the steel, making it suitable for applications that require high strength and resistance to wear and tear. On the other hand, a peeled steel round bar is produced through a different manufacturing process known as peeling or turning. In this process, a solid steel bar is rotated against a cutting tool, which removes the outer layer of the bar, resulting in a smooth and precise surface finish. Peeling removes any surface defects or imperfections present in the original bar, improving its dimensional accuracy and surface quality. In terms of physical characteristics, forged steel round bars typically have a rougher surface texture due to the nature of the forging process. This rough texture can provide enhanced grip or adhesion when used in certain applications. Additionally, forged bars often have a denser and more uniform internal grain structure, which contributes to their superior mechanical properties. Peeled steel round bars, on the other hand, possess a smooth and shiny surface finish as a result of the peeling process. This smooth surface makes peeled bars suitable for applications that require aesthetic appeal or require a low coefficient of friction. However, the peeling process may result in a slight reduction in the overall diameter of the bar. In summary, the main difference between a forged and a peeled steel round bar lies in their manufacturing processes and resulting physical characteristics. Forged bars are created through the application of pressure, resulting in a rougher surface texture and superior mechanical properties. Peeled bars, on the other hand, are produced by removing the outer layer of a steel bar, resulting in a smooth surface finish and improved dimensional accuracy. The choice between these two types of bars ultimately depends on the specific requirements of the application at hand.
- Q: Can steel round bars be used for making turbine blades?
- Using steel round bars to make turbine blades is not possible. Turbine blades experience high temperatures and extreme forces, so they need to be durable and flexible. Steel round bars do not have the required properties to endure these conditions. Usually, turbine blades are constructed from materials like titanium alloys or advanced composites, which have a high strength-to-weight ratio, exceptional fatigue resistance, and thermal stability. These materials are purposely designed to withstand the challenging conditions of turbine operations, ensuring efficiency and reliability.
- Q: What are the different types of steel round bar surface treatments used in the aerospace industry?
- In the aerospace industry, the different types of steel round bar surface treatments commonly used include various coatings such as nickel plating, chrome plating, zinc plating, and anodizing. These treatments are applied to enhance the corrosion resistance, improve the durability, and provide a visually appealing finish to the steel round bars used in aerospace applications.
- Q: How do you calculate the fatigue strength of a steel round bar?
- Various methods can be employed to calculate the fatigue strength of a steel round bar. For instance, the stress-life (S-N) curve approach or the strain-life (ε-N) curve approach can be utilized. The stress-life (S-N) curve approach entails plotting the stress amplitude (S) against the number of cycles to failure (N) on a log-log scale. By subjecting multiple specimens of the steel round bar to different stress levels and measuring the number of cycles to failure for each stress level, the S-N curve can be obtained. The fatigue strength of the steel round bar can then be determined by identifying the stress level at which the desired number of cycles to failure is achieved, commonly known as the endurance limit. On the other hand, the strain-life (ε-N) curve approach involves plotting the strain amplitude (ε) against the number of cycles to failure (N) on a log-log scale. Similar to the S-N curve approach, multiple specimens of the steel round bar are subjected to different strain levels, and the number of cycles to failure is recorded. By utilizing the strain-life curve, the fatigue strength can be determined by identifying the strain level corresponding to the desired number of cycles to failure. It should be emphasized that calculating the fatigue strength of a steel round bar necessitates conducting fatigue tests on representative specimens under controlled conditions. These tests involve subjecting the specimens to cyclic loading, typically in the form of tension-compression cycles, and recording the number of cycles to failure. The data obtained from these tests is then utilized to construct the S-N curve or the ε-N curve, which offers valuable insights into the fatigue behavior and strength of the steel round bar.
- Q: What are the advantages of using phosphorus-alloy steel round bars?
- There are several advantages of using phosphorus-alloy steel round bars: 1. Increased strength: Phosphorus-alloy steel round bars have a higher tensile strength compared to standard steel bars. This increased strength makes them suitable for applications that require greater load-bearing capacity, such as construction and automotive industries. 2. Enhanced corrosion resistance: Phosphorus-alloy steel has a higher resistance to corrosion compared to regular steel. This makes it more durable and long-lasting, especially in environments with high moisture or exposure to chemicals. 3. Improved machinability: Phosphorus-alloy steel has excellent machinability, which means it can be easily shaped, cut, and formed into various designs or structures. This characteristic makes it a preferred choice for industries that require precise shaping, such as manufacturing and engineering. 4. Reduced brittleness: Phosphorus-alloy steel has a lower brittleness factor compared to other types of steel. This means it is less likely to break or fracture under sudden impact or stress, making it a safer option for applications where structural integrity is crucial. 5. Cost-effective: Despite its enhanced properties, phosphorus-alloy steel round bars are still cost-effective compared to other specialty alloys. This makes them a more affordable choice for industries that require high-performance materials without breaking the budget. 6. Improved weldability: Phosphorus-alloy steel round bars have excellent weldability, allowing for easy and secure welding connections. This characteristic makes them suitable for applications that require strong and reliable welded joints, such as construction or fabrication projects. In summary, phosphorus-alloy steel round bars offer increased strength, enhanced corrosion resistance, improved machinability, reduced brittleness, cost-effectiveness, and improved weldability. These advantages make them a preferred choice for various industries where high-performance materials are required.
- Q: What are the factors to consider when selecting a steel round bar?
- When selecting a steel round bar, there are several factors that should be taken into consideration. Firstly, it is important to consider the grade of steel. Different grades of steel have varying properties and strengths, so the specific application and requirements should be evaluated. For example, if high corrosion resistance is needed, stainless steel grades like 304 or 316 may be suitable, whereas for structural applications, carbon steel grades like A36 or 1018 may be more appropriate. Secondly, the dimensions and size of the round bar should be considered. This includes the diameter, length, and tolerance requirements. The size should be chosen based on the specific application, load-bearing capacity, and the available space for installation. Thirdly, the surface finish and condition of the round bar should be assessed. This includes factors such as surface roughness, straightness, and any surface defects. The surface finish should be selected based on the desired aesthetics, functional requirements, and the manufacturing process. Another important factor is the availability and cost of the steel round bar. It is crucial to consider the availability of the desired grade and size from suppliers, as well as the associated cost. It is advisable to compare prices from different suppliers to ensure the best value for money. Furthermore, the required mechanical properties of the steel round bar should be evaluated. This includes factors such as tensile strength, yield strength, hardness, and ductility. The mechanical properties should align with the intended application and load-bearing requirements. Lastly, it is essential to consider any additional requirements or certifications that may be needed. This could include compliance with specific industry standards (e.g., ASTM, ISO), certifications (e.g., RoHS, REACH), or specific testing requirements (e.g., ultrasonic testing, impact testing). In conclusion, when selecting a steel round bar, it is important to consider the grade, dimensions, surface finish, availability, cost, mechanical properties, and any additional requirements. Taking into account these factors will help ensure that the steel round bar chosen is suitable for the intended application and meets all necessary specifications.
- Q: How do you calculate the weight of a steel round bar based on its density and dimensions?
- In order to determine the weight of a steel round bar, one must possess knowledge of its density and dimensions. The weight can be calculated using the formula W = V x D, where W represents weight, V represents volume, and D represents density. Firstly, it is necessary to ascertain the volume of the round bar. The volume of a cylinder can be calculated using the formula V = πr^2h, where V represents volume, π is a constant (approximately 3.14159), r represents the radius of the round bar, and h represents the height or length of the round bar. In the event that one possesses the diameter of the round bar instead of the radius, the radius can be determined by dividing the diameter by 2. Once the radius is determined, it can be substituted into the formula along with the height of the round bar to calculate the volume. Subsequently, knowledge of the density of the steel is required. The density of steel is typically measured in grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3). It is imperative to ensure that the units for both density and volume are consistent. If the density is given in g/cm^3, the volume must be converted from cm^3 to m^3 by dividing it by 1,000,000. Finally, the weight can be calculated by multiplying the volume by the density. If the density is provided in kg/m^3, the weight will be in kilograms. If the density is provided in g/cm^3, the weight will be in grams. Conversion to other units can be achieved by utilizing appropriate conversion factors. It is crucial to verify all calculations and maintain consistency of units throughout the entire calculation process.
- Q: How do steel round bars compare to fiberglass round bars?
- Steel and fiberglass round bars possess distinct characteristics and applications, rendering them appropriate for diverse purposes. Renowned for their robustness and resilience, steel round bars are commonly utilized in the construction, manufacturing, and engineering sectors, where strength and load-bearing capacity assume paramount importance. With the ability to endure heavy loads, steel round bars prove ideal for structural applications like beams, columns, and supports. Furthermore, steel round bars exhibit exceptional resistance to impact, wear, and corrosion, rendering them fitting for outdoor and high-stress environments. Conversely, fiberglass round bars offer exclusive advantages. Fiberglass, being both lightweight and non-conductive, finds suitability in applications where electrical conductivity or weight constitutes a concern. Frequently employed in the electrical and telecommunications industries, fiberglass round bars provide insulation and enhance safety. Moreover, they exhibit resistance to corrosion, making them appropriate for outdoor and marine applications. Considering cost, steel round bars generally prove more affordable than their fiberglass counterparts. Given the wide availability of steel and its relatively low production costs, it serves as a cost-effective material. Conversely, fiberglass necessitates specialized manufacturing processes and materials, thereby potentially increasing its overall cost. Ultimately, the selection between steel and fiberglass round bars hinges on the specific requirements of the intended application. Should strength, durability, and load-bearing capacity hold critical significance, steel round bars emerge as an excellent choice. However, if considerations such as weight, electrical insulation, or corrosion resistance assume prominence, fiberglass round bars may prove more suitable.
- Q: How are steel round bars used in the manufacturing of lifting equipment?
- Due to their strength, durability, and versatility, steel round bars are commonly used in the manufacturing of lifting equipment. These bars are typically made from high-quality steel alloys like carbon steel or alloy steel, which provide the necessary strength and toughness for lifting heavy loads. In the manufacturing process, steel round bars serve as the main structural component of lifting equipment such as cranes, hoists, and lifting hooks. They are utilized to create the frame and support structures that ensure stability and load-bearing capacity. Moreover, steel round bars are employed to fabricate various lifting components like shafts, axles, and pins. These components play a crucial role in the proper functioning of lifting equipment and are designed to withstand high levels of stress and strain. The use of steel round bars guarantees that they can handle heavy loads without deforming or failing. Additionally, steel round bars are frequently used to manufacture lifting hooks and chains. Lifting hooks are essential for attaching the load to the lifting equipment, while chains secure and lift the load. Steel round bars provide the necessary strength and rigidity to handle the weight of the load, ensuring safe and efficient lifting operations. Furthermore, manufacturers can machine, forge, or heat-treat steel round bars to achieve specific mechanical properties required for lifting equipment manufacturing. This flexibility allows manufacturers to customize the bars to meet the specific requirements of different lifting applications, such as withstanding high temperatures or resisting corrosion. In conclusion, steel round bars are indispensable in the manufacturing of lifting equipment. Their strength, durability, and versatility make them ideal for creating the structural frames, support structures, and lifting components necessary for safe and efficient lifting operations.
- Q: What are the advantages of using niobium-alloy steel round bars?
- There are several advantages of using niobium-alloy steel round bars. Firstly, niobium improves the strength and toughness of the steel, making it highly durable and resistant to fatigue and wear. Secondly, the alloy's high temperature stability allows for its use in extreme conditions without compromising its structural integrity. Additionally, niobium-alloy steel round bars offer excellent corrosion resistance, making them suitable for applications in harsh environments. Lastly, the alloy's lightweight nature makes it ideal for industries that require strong yet lightweight materials, such as aerospace and automotive sectors.
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HSS Steel Round Bar Alloy Round Tool Steel Bar/M2/M25M42/D2/H13
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 556 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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