Prime square steel billet best price from China
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 14721 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Credit Rating, Credit Services, Credit Purchasing
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Specification
Tolerance:
Strictly according to the G/B and JIS standard
Size:
100mm to 165mm
Length:
6~12 M
Grade:
Q195/Q215/Q235/Q275
Rectangular billet continuous casting billet and mainly general carbon steel, low carbon low silicon cold-rolled material, high quality carbon structural steel, high strength low alloy steel, special steel, etc.
Steel billets have distinct characteristics as compared with already furnished steel bars and products.
Billets have a specific grain structure, which enables the metal to be processed more intricately. Steel billets
are also known for their malleability and ductility, especially when exposed to varying temperatures during
shaping and molding.
Gade:
Standard | C(%) | Mn(%) | S(%) | P(%) | Si(%) |
Q195 | ≤0.12 | ≤0.50 | ≤0.040 | ≤0.035 | ≤0.30 |
Q235 | ≤0.20 | ≤1.40 | ≤0.045 | ≤0.045 | ≤0.35 |
Q275 | ≤0.22 | ≤1.50 | ≤0.045 | ≤0.045 | ≤0.35 |
20MnSi | 0.17-0.25 | 1.2-1.6 | ≤ 0.050 | ≤ 0.050 | 0.40-0.80 |
3SP | 0.14-0.22 | 0.40-0.85 | ≤ 0.050 | ≤ 0.040 | 0.05-0.15 |
5SP | 0.28-0.37 | 0.50-1.00 | ≤ 0.050 | ≤ 0.040 | 0.15-0.30 |
Other Specifications
Squar Tolerance: ±4
Length Tolerance: +100mm
Romboidity/Difference Diagonals: no more than 0.7%
Camber: no more than 1.5%(%)
Twist: no more than 3 degrees per 1 meter length
Our Advantage
* Professional Personnel of Steel Trading
* Strong Steel Industry Background
* Conveniently Geographic Location
Our Commitment
* Sincere, Practical, Efficient and Developing
* High Quality Steel Production
* Competitive Price and Timely Delivery
Packing :
Within 30 days
1.Standard export package
2.In bundles with steel strips
3.As the requirements of the customers
FAQ:
Q: How to get quotation?
A: When we receive your detailed enquiry, we will set the best price based on standard,
steel grade, outer diameter, wall thickness, quantity, country.
And we will send quotation to your mailbox.
Q:How to guarantee the quality of the products?
A:We have established the international advanced quality management system,every link from raw material
to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market.
At the same time, we will provide necessary follow-up service assurance.
Q:How long can we receive the product after purchase?
A :In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.
The pecific time of receiving is related to the state and position of customers.
- Q: What are the common defects in steel billets during continuous casting?
- Some common defects that can occur in steel billets during continuous casting include: 1. Surface cracks: These are cracks that appear on the outer surface of the billet. They can be caused by excessive cooling or improper mold lubrication. Surface cracks can lead to weakened structural integrity and may result in breakage during subsequent processing. 2. Central segregation: This defect occurs when there is an uneven distribution of elements within the billet, leading to variations in composition across its cross-section. Central segregation can result in inconsistent mechanical properties, making the billet unsuitable for certain applications. 3. Inclusion defects: Inclusions are non-metallic particles or impurities that become trapped within the billet during casting. They can originate from the refractory lining, mold powder, or the steelmaking process itself. Inclusion defects can weaken the material and reduce its overall quality. 4. Internal cracks: These cracks occur within the body of the billet and are often caused by thermal stresses or improper cooling. Internal cracks are difficult to detect visually and can compromise the billet's structural integrity. 5. Surface and subsurface defects: These defects include surface depressions, oscillation marks, and hot tears. Surface depressions can be caused by excessive mold oscillation or improper mold condition. Oscillation marks result from non-uniform mold oscillation, leading to uneven cooling and inconsistent billet dimensions. Hot tears occur when the billet contracts unevenly during solidification, resulting in cracks on the surface or subsurface. 6. Pipe defects: Pipes are hollow cavities that can form within the billet during solidification. They are caused by shrinkage and can result in weak points in the material. Pipes can be particularly problematic if they propagate to the surface, as they can lead to breakage during subsequent processing. Overall, these defects can pose significant challenges in the production of high-quality steel billets. Continuous improvement in casting techniques, process control, and quality assurance measures are key to minimizing these defects and ensuring the production of defect-free billets.
- Q: How do steel billets contribute to the manufacturing of rail and transportation systems?
- Steel billets are an essential component in the manufacturing of rail and transportation systems. These billets serve as the raw material for the production of various components used in the construction of railways, such as rails, sleepers, and fasteners. One of the primary uses of steel billets in rail manufacturing is for the production of railway tracks. Steel billets are first heated and then rolled into long, slender sections called rails. These rails are then further processed and treated to withstand the heavy loads and constant wear and tear experienced in railway operations. The durability, strength, and resistance to deformation of steel make it an ideal material for railway tracks, ensuring safe and efficient transportation. Steel billets also play a vital role in the manufacturing of sleepers or railroad ties, which are used to support the rails and maintain their alignment. These sleepers, typically made from prestressed concrete or wood, require reinforcing bars made from steel billets to enhance their strength and structural integrity. Additionally, steel billets are used to produce fasteners, such as bolts, clips, and spikes, which are crucial for securely fastening rails to sleepers and maintaining track stability. Moreover, steel billets are used in the production of various transportation system components, including chassis, frames, and suspension systems for trains, trams, buses, and other vehicles. Their high strength and excellent formability make steel billets an ideal choice for these applications, as they can withstand the heavy loads and provide structural integrity necessary for safe and reliable transportation. In summary, steel billets play a significant role in the manufacturing of rail and transportation systems. From the production of railway tracks to the fabrication of sleepers, fasteners, and vehicle components, steel billets provide the necessary strength, durability, and structural integrity required for the efficient and safe operation of railways and transportation systems.
- Q: What are the main factors affecting the surface finish of steel billets?
- The main factors affecting the surface finish of steel billets can be attributed to several key factors. Firstly, the quality and cleanliness of the raw materials used in the steelmaking process play a significant role. Any impurities or contaminants present in the raw materials can lead to surface defects and imperfections in the finished billets. Secondly, the processing parameters employed during the manufacturing process have a direct impact on the surface finish. Factors such as temperature, speed, and pressure can affect the formation of scale, oxidation, and other surface abnormalities. For instance, if the temperature is too high, it can result in excessive scaling, while insufficient temperature control may lead to inadequate scale removal. Furthermore, the type and condition of the equipment used for the production of steel billets can influence the surface finish. Abrasions, scratches, or other defects in the machinery can transfer onto the billets, affecting their surface quality. Regular maintenance and proper upkeep of the machinery are crucial to ensure a smooth and defect-free surface finish. Moreover, the choice and application of lubricants and coatings during the production process can also impact the surface finish. These substances serve to protect the billets from oxidation and aid in the reduction of friction. However, if not applied correctly or if the wrong type of lubricant is used, it can lead to uneven coating, streaking, or other surface irregularities. Lastly, the handling and storage of the steel billets after production can influence their surface finish. Mishandling, improper storage conditions, or exposure to moisture, chemicals, or contaminants can all contribute to surface defects and deterioration. In conclusion, the main factors affecting the surface finish of steel billets include the quality of raw materials, processing parameters, condition of equipment, application of lubricants and coatings, and proper handling and storage. By closely monitoring and optimizing these factors, manufacturers can achieve a high-quality surface finish that meets the desired specifications and requirements.
- Q: What are the different surface treatments applied to alloy steel billets?
- Enhancing the properties and performance of alloy steel billets can be achieved through various surface treatments. One commonly used treatment involves bombarding the billet surface with small metal or ceramic particles at high velocity, a process known as shot blasting. This effectively eliminates impurities and contaminants, resulting in a clean and uniform surface finish. Additionally, shot blasting promotes the adhesion of subsequent coatings or treatments. Another method, known as pickling, entails immersing the billets in an acid solution to remove oxides and scale from the surface. This not only improves the surface quality but also eliminates any defects, preparing the billets for further processing or treatments. Heat treatment is a popular surface treatment for alloy steel billets. By subjecting the billets to controlled heating and cooling processes, their microstructure can be altered, leading to improved mechanical properties. This treatment can enhance the hardness, strength, and toughness of the billets, rendering them more suitable for specific applications. Furthermore, alloy steel billets can be coated with protective coatings to enhance corrosion resistance and durability. Common techniques include hot-dip galvanizing, electroplating, and painting. These coatings serve as a barrier between the alloy steel surface and the environment, effectively preventing corrosion and extending the lifespan of the billets. To summarize, shot blasting, pickling, heat treatment, and protective coatings are among the various surface treatments applied to alloy steel billets. These treatments enhance surface quality, improve mechanical properties, and protect against corrosion, ensuring optimal performance in diverse applications.
- Q: Are steel billets used in the production of electrical transmission towers?
- Yes, steel billets are commonly used in the production of electrical transmission towers. Steel billets are the raw material that is used to manufacture various steel products, including transmission towers. These billets are heated and then shaped into the required sections and lengths to construct the tower structures.
- Q: What are the different types of defects that can occur in steel billets?
- There are several types of defects that can occur in steel billets. These defects can occur during the manufacturing process or as a result of external factors. Some of the common types of defects include: 1. Surface defects: These defects occur on the outer surface of the billet and can include scratches, pits, scabs, scale, and cracks. Surface defects can be caused by handling, improper cooling, or contamination during manufacturing. 2. Internal defects: These defects occur within the body of the billet and are not visible on the surface. They can include voids, porosity, inclusions, and segregation. Internal defects can be caused by improper solidification, improper casting, or impurities in the steel. 3. Dimensional defects: These defects occur when the billet does not meet the desired dimensions or tolerances. Dimensional defects can include variations in length, width, thickness, or straightness. These defects can be caused by improper rolling, uneven cooling, or misalignment of the equipment. 4. Mechanical defects: These defects affect the mechanical properties of the steel billet. They can include improper grain structure, low hardness, brittleness, or poor toughness. Mechanical defects can occur due to improper heat treatment, incorrect alloy composition, or inadequate rolling processes. 5. Weld defects: In case of welded billets, defects related to the welding process can occur. These defects can include lack of fusion, incomplete penetration, porosity, or cracks in the weld zone. Weld defects can be caused by improper welding parameters, inadequate preparation, or contamination during the welding process. It is important to detect and address these defects to ensure the quality and integrity of the steel billets. Various inspection techniques such as visual inspection, ultrasonic testing, magnetic particle testing, or radiographic testing can be employed to identify and classify these defects.
- Q: What are the properties of steel billets?
- Steel billets are semi-finished metal products that possess several key properties. They are typically made from carbon steel and have a rectangular or square cross-section. Steel billets exhibit high strength, durability, and ductility, making them suitable for various industrial applications. They can be easily shaped or machined into different forms, including bars, rods, or sheets. Moreover, steel billets have excellent weldability and can withstand high temperatures, making them ideal for construction, automotive, and manufacturing industries.
- Q: What is a steel billet?
- A steel billet is a semi-finished product in the form of a rectangular or square shape made from molten steel that has been solidified and cooled. It serves as a raw material for various steel products and is further processed through rolling or forging to be transformed into bars, rods, or other desired shapes.
- Q: What are the different forging techniques used for steel billets?
- There are several forging techniques used for steel billets, each offering unique advantages and producing different results. Some of the commonly used forging techniques for steel billets include: 1. Open Die Forging: This technique involves placing the steel billet between two flat dies and applying compressive force to shape it. Open die forging allows for a wide range of shapes to be formed, and it is often used for large and complex components. 2. Closed Die Forging: Also known as impression die forging, this technique uses shaped dies that contain impressions of the desired final shape. The steel billet is placed between the dies and compressed to conform to the die cavities. Closed die forging provides precise control over the shape and dimensions of the final product. 3. Roll Forging: In this technique, the steel billet is passed through two or more rotating rolls that exert compressive force to shape the material. Roll forging is commonly used for producing long cylindrical shapes such as bars, rods, and shafts. 4. Upset Forging: This technique involves compressing the steel billet axially to increase its cross-sectional area and reduce its length. Upset forging is often used to create thicker sections or to increase the diameter of the material. 5. Press Forging: Press forging utilizes hydraulic or mechanical presses to apply force to the steel billet, shaping it against the die. This technique allows for precise control over the forging process, making it suitable for producing components with intricate shapes or close tolerances. 6. Swaging: Swaging is a forging technique that involves reducing the diameter of a steel billet by applying radial compressive force using a series of dies. This process is commonly used to produce tapered or pointed components such as pins, bolts, or needles. Each of these forging techniques offers distinct advantages depending on the desired shape, size, and properties of the final product. The choice of forging technique is determined by factors such as part complexity, material properties, production volume, and cost considerations.
- Q: How does the market demand for steel billets fluctuate over time?
- The demand for steel billets in the market can change due to a variety of factors. One of the main drivers of demand is the overall state of the economy. When the economy is doing well, there is usually a higher demand for steel billets because they are an important raw material for industries like construction, automotive, and manufacturing. On the other hand, during economic downturns or recessions, the demand for steel billets tends to decrease as these industries reduce their production and investment. Another factor that can affect the market demand for steel billets is the construction industry. Projects related to infrastructure, real estate, and urbanization can increase the demand for steel billets, as they are necessary for building structures like buildings and bridges. Changes in government policies or regulations regarding infrastructure spending can also have an impact on the demand for steel billets. Furthermore, the automotive industry plays a significant role in the demand for steel billets. As the automotive sector grows or declines, the demand for steel billets used in the production of automobile parts and components can change accordingly. Global trade and international relations can also influence the market demand for steel billets. Factors like tariffs, trade agreements, and geopolitical tensions can affect the supply and demand dynamics, leading to fluctuations in demand. For example, increased protectionism or trade barriers can result in reduced demand for steel billets in certain markets. Lastly, technological advancements and changes in consumer preferences can have an impact on the demand for steel billets. For instance, the increased use of alternative materials like aluminum or composites in certain industries may decrease the demand for steel billets. Additionally, shifts in consumer preferences towards more sustainable or lightweight products can also affect the demand for steel billets. In conclusion, the demand for steel billets in the market can change due to factors such as economic conditions, construction industry activity, automotive industry trends, global trade dynamics, and technological advancements. It is important for market participants to understand these factors and their potential impacts in order to anticipate and adapt to changes in demand for steel billets.
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Prime square steel billet best price from China
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 14721 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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