TK 440 superior hot rolled Carbon Steel Billets Square Billets
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 1000000 m.t./month
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Product Description
TK 440 superior hot rolled Carbon Steel Billets Square Billets
Size:30*30mm-150*150mm
Standard: GB,BS,ASTM
Grade: Q195/215/235/345/45#/3SP/5SP,ect
Application: Carbon structural steel, alloy structural steel, gear steel, spring steel,
bearing steel, etc.
Packaging Detail: exporting standard packing in mill or as request
Delivery Detail: within 15-30 days after receiving deposits or original LC
The Billets produced by the company can be broadly divided into three main types i.e.
1. M.S. Billets
2. CRS Billets
3. Special Alloy Billets
M.S. Billets are used for rolling of TMT Re-Bars of Fe415 and Fe500 Grade and various other structural steel products.
CRS Billets are used for rolling of CRS TMT Re-Bars.
Special Alloy Billets are used for rolling of any special grade TMT Re-Bars like Earthquake resistant TMT Re-Bars and for special grade structural steel products.
Square steel billet
1.Chemical Analysis | |||
Grade | Carbon(%) | Manganese(%) | Silicon(%) |
A | 0.14~0.22 | 0.30~0.65 | Max0.30 |
B | 0.12~0.20 | 0.37~0.67 | Max0.30 |
C | Max0.18 | 0.35~0.80 | Max0.30 |
D | Max0.17 | 0.35~0.80 | Max0.35 |
2.Mechnical Properties | |||
Tensile Strength(σb/Mpa) | Elongation(δ5/%) | ||
375---500 | ≥26(a≤16mm) | ||
3.basic information | |||
length | Spectfication(mm) | Material quality | Executive standard |
6m | 120*120 | Q235 | GB700-88 |
4.Trade information | |||
Price terms | Payment terms | Delivery time | Packing |
FOB/ CIF | T/T, L/C | Within 30 days | bundles |
- 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: What are the challenges faced in the production of steel billets?
- The production of steel billets encounters various obstacles. One major hurdle is the acquisition of raw materials. Typically, steel billets are created from iron ore, which must first be mined and processed. However, the availability and quality of iron ore can fluctuate, making it difficult to maintain a consistent supply. Another challenge arises from the energy-intensive nature of steel production. Converting iron ore into steel billets demands significant amounts of energy, primarily in the form of electricity and fossil fuels. Consequently, this results in high production costs and contributes to environmental concerns, including greenhouse gas emissions. In addition, the production of steel billets involves intricate metallurgical processes. The steel must be heated to high temperatures and undergo various treatments to achieve the desired properties. Ensuring consistent quality and meeting customer specifications can be problematic, as even slight deviations in the production process can impact the final product's performance. Maintaining a safe working environment poses a considerable challenge in steel billet production. The process involves handling heavy machinery, molten metal, and potentially hazardous chemicals. Effective safety measures and protocols must be implemented to safeguard workers and prevent accidents. Lastly, market dynamics and competition within the steel industry create hurdles in the production of steel billets. Fluctuating demand, changes in customer preferences, and price volatility can affect production planning and profitability. Steel producers must remain competitive by continuously improving efficiency, reducing costs, and adapting to market trends. In summary, the production of steel billets faces challenges related to raw material sourcing, energy consumption, metallurgical processes, safety, and market dynamics. Overcoming these obstacles necessitates a combination of technological advancements, efficient operations, and strategic decision-making to ensure a sustainable and successful production process.
- Q: How are steel billets used in the production of mining components?
- Steel billets play a vital role in the mining component production process. They serve as the initial stage in the manufacturing of diverse mining equipment and components. To begin with, steel billets are melted and cast into specific shapes and sizes to meet the mining industry's requirements. These billets are subjected to extremely high temperatures and then poured into molds to achieve the desired shape. This casting process enables the creation of various mining components like gears, shafts, and valves. Once the steel billets have been cast into the desired shape, they undergo further processing to enhance their strength and durability. This involves employing different techniques such as forging, where the billets are exposed to high pressure and heat to enhance their mechanical properties. Forged steel components are widely used in mining applications due to their exceptional strength and resistance to wear and tear. Additionally, steel billets are frequently machined to attain precise dimensions and finishes necessary for mining components. Machining encompasses cutting, drilling, and shaping the billets using specialized tools and machinery. This step guarantees that the final mining components meet the precise specifications required for efficient and reliable operation in mining environments. In general, steel billets are indispensable in the production of mining components as they serve as the raw material from which these components are manufactured. The versatility and durability of steel make it an ideal choice for mining applications, where equipment is subjected to demanding conditions. By commencing with steel billets and employing various manufacturing processes, mining companies can produce high-quality components that are crucial for the efficient and safe operation of mining activities.
- Q: What is the typical tensile strength of a steel billet?
- The tensile strength of a steel billet can vary depending on its specific grade and composition. Typically, steel billets have a tensile strength ranging from 370 to 550 megapascals (MPa). This range is commonly observed in low to medium carbon steels, which are utilized in various industries like construction, automotive, and manufacturing. It should be noted that higher-grade steels, including alloy steels, can exhibit considerably higher tensile strengths, surpassing 1000 MPa. Ultimately, the intended application and project requirements dictate the tensile strength of a steel billet.
- Q: What is the role of steel billets in the manufacturing of agricultural machinery?
- Steel billets play a crucial role in the manufacturing process of agricultural machinery. These billets are essentially semi-finished steel products that are typically cast into a rectangular shape. They serve as the raw material for various components and parts of agricultural machinery. The use of steel billets provides several advantages in the manufacturing of agricultural machinery. Firstly, steel is known for its exceptional strength and durability, making it an ideal material for heavy-duty machinery that is subjected to harsh operating conditions. Steel billets, being the starting point of the manufacturing process, ensure that the final products possess the necessary strength and durability to withstand the demands of agricultural activities. Moreover, steel billets offer versatility in design and fabrication. Agricultural machinery requires a wide range of components with different shapes and sizes, and steel billets can be easily molded and machined to meet these requirements. This flexibility allows manufacturers to produce complex parts that are essential for the efficient operation of agricultural machinery. Additionally, steel billets provide consistent and reliable quality. The manufacturing process of steel billets involves strict quality control measures to ensure uniformity and adherence to industry standards. This consistency in quality translates into reliable performance and longevity of the agricultural machinery, reducing the need for frequent repairs or replacements. Furthermore, steel billets have excellent resistance to corrosion and wear, which is crucial for agricultural machinery exposed to various environmental elements. The use of steel billets ensures that the final products can withstand exposure to moisture, chemicals, and abrasive materials commonly encountered in agricultural settings. In summary, steel billets are integral to the manufacturing of agricultural machinery due to their strength, durability, versatility, consistent quality, and resistance to corrosion and wear. By using steel billets as the raw material, manufacturers can produce agricultural machinery that meets the demanding requirements of the agricultural industry, ensuring reliable and efficient performance in various farming applications.
- Q: What are the main factors affecting the fatigue strength of stainless steel billets?
- The main factors affecting the fatigue strength of stainless steel billets include the composition and microstructure of the steel, the presence of surface defects or imperfections, the level of applied stress or load, the presence of corrosive environments, and the temperature at which the billets are operating.
- Q: How do steel billets contribute to the circular economy?
- Steel billets contribute to the circular economy by enabling the recycling and reuse of steel. They serve as a raw material for various industries, including construction, automotive, and manufacturing, allowing for the production of new steel products from recycled steel. By using steel billets, the circular economy promotes the reduction of waste and the conservation of resources, as it minimizes the need for extracting and processing raw materials, thereby reducing energy consumption and environmental impact.
- Q: How do steel billets contribute to the manufacturing of construction supplies?
- Steel billets are the primary raw material used in the manufacturing of construction supplies. These billets are heated and then shaped into various forms such as bars, rods, beams, and plates, which are essential components in construction projects. They provide the necessary strength, durability, and structural integrity required for buildings, bridges, and other infrastructure. The versatility and quality of steel billets make them indispensable in the construction industry.
- Q: What are the different surface treatments available for steel billets?
- There are several different surface treatments available for steel billets, each serving a specific purpose and offering unique benefits. Some of the commonly used surface treatments for steel billets include: 1. Hot-dip galvanizing: This process involves immersing the steel billets in a bath of molten zinc, creating a protective coating that helps prevent corrosion. Hot-dip galvanizing provides excellent corrosion resistance and durability, making it suitable for outdoor applications. 2. Electroplating: Electroplating involves depositing a layer of metal onto the surface of the steel billets using an electrical current. This treatment can enhance the appearance of the steel while providing corrosion resistance and improving wear resistance. 3. Powder coating: Powder coating is a dry finishing process where a fine powder is electrostatically applied to the steel billets and then cured under heat. This treatment creates a durable and attractive finish that is resistant to chipping, scratching, and fading. 4. Passivation: Passivation is a chemical treatment that removes contaminants and creates a protective oxide layer on the surface of the steel billets. This process enhances the corrosion resistance of the steel and improves its appearance. 5. Phosphating: Phosphating involves applying a phosphate coating to the steel billets, which enhances corrosion resistance and improves paint adhesion. Phosphating is commonly used as a pre-treatment before painting or powder coating. 6. Shot blasting: Shot blasting is a mechanical surface treatment that involves blasting steel billets with small abrasive particles at high velocity. This process removes surface contaminants, scales, and rust, resulting in a clean and roughened surface suitable for further treatments or coatings. 7. Acid pickling: Acid pickling is a chemical treatment that removes oxide scales, rust, and other impurities from the surface of the steel billets. This treatment provides a clean and smooth surface, preparing the steel for subsequent processing or coating. These are just a few examples of the surface treatments available for steel billets. The choice of treatment depends on the specific requirements of the application, including corrosion resistance, appearance, and functional properties. It is essential to consider factors such as cost, environmental impact, and performance expectations when selecting the appropriate surface treatment for steel billets.
- Q: What are the different types of surface coating methods used for steel billets?
- There are several different types of surface coating methods that are commonly used for steel billets. These methods are employed to enhance the durability, corrosion resistance, and overall performance of the steel billets. Some of the commonly used surface coating methods for steel billets include: 1. Hot-dip galvanizing: This method involves immersing the steel billets in a bath of molten zinc. The zinc coating forms a protective layer on the surface of the steel, preventing corrosion and providing excellent durability. 2. Electroplating: In this method, a thin layer of metal, such as zinc, nickel, or chromium, is electrochemically deposited onto the surface of the steel billets. This coating provides enhanced corrosion resistance and improves the aesthetic appearance of the steel. 3. Powder coating: Powder coating involves applying a dry powder onto the surface of the steel billets, which is then heated to form a protective layer. This method provides excellent durability, resistance to chemicals, and a wide range of color options. 4. Paint coating: Paint coating involves applying a liquid paint onto the surface of the steel billets. The paint forms a protective layer that provides corrosion resistance and can be customized with different colors and finishes. 5. Thermal spray coating: This method involves spraying molten or powdered metals onto the surface of the steel billets using a thermal spray gun. The coating provides excellent wear resistance, corrosion protection, and can be customized with different materials. 6. Anodizing: Anodizing is commonly used for aluminum billets, but can also be applied to steel. It involves creating an oxide layer on the surface of the steel billets through an electrochemical process. This coating improves corrosion resistance and provides a decorative finish. Each of these surface coating methods has its own advantages and disadvantages, and the choice of method depends on factors such as the desired level of protection, aesthetics, and the specific requirements of the steel billets.
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TK 440 superior hot rolled Carbon Steel Billets Square Billets
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 1000000 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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