Continue Casting Steel Bloom Made by Blast Furnace
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 100000 m.t./month
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Continue Casting Steel Bloom Made by Blast Furnace
1.Structure of Continue Casting Steel Bloom Made by Blast Furnace
Continue Casting Steel Bloom Made by Blast Furnaceis the raw material of all kinds of steel products.For example, Billet section of square, round, flat, rectangular and abnormity, etc Several, mainly related to shape of rolled products. Simple rolled section steel, choose cross section of square billet or rectangular billet. rolling The sector products such as flat steel, Angle steel, select the rectangular billet or slab. There are diffirents kinds of the spec. for the steel billet, in the past, Many steel mill produce the steel billet by Electrice furnace, but now most of the steel billet manufactured by blast furnace.
2.Main Features of Continue Casting Steel Bloom Made by Blast Furnace
Continue Casting Steel Bloom by Blast Furnace section size is normally includes 120*120,130*130,150*150,160*160,165*165 and so on. And also includes the retangular size, it depands on the usage of the steel billet. simplify the stock management of workshop.
3. Continue Casting Steel Bloom Made by Blast Furnace Images
4. Continue Casting Steel Bloom Made by Blast Furnace Specification
Continue Casting Steel Bloom by Blast Furnace rolled steel, after processing can be used for mechanical parts, forging parts, processing all kinds of steel, steel Q345B channel steel, wire rod is the role of the billet. Steel billet is used in the production of semi-finished products, generally cannot be used directly for the society. Steel billets and steel are strictly divided into standard, cannot decide to whether the business enterprise of the final product, and according to unified standards to perform the whole society. Typically, billet and the steel is relatively easy to distinguish, but for some steel billet, and have the same specification and same steel purposes (such as rolling tube billet), whether can be used for other industries, whether through steel processing process, whether through a finished product rolling mill processing to distinguish
Material standard The editor Range of thickness: 150-240 - mm + / - 5 mm width range: 880-1530 - mm + / - 20 mm Length: 3700-10000 - mm + / - 500 - mm Cross-sectional size: 64 * 64; 82 * 82; 98 * 98; 124 * 124; 120 * 150; 152 * 164; 152 * 170 mm Length: 9000 mm Section of tolerance: billet: 1.0 + / - 2.0-1.0 + / - 1.0 mm slab: width: + / - 2.0 mm thickness: + / - 3.0 mm The length tolerance: + / - 200 mm Section diagonal tolerance: 3.5-8.0 MM Billet section size protrusions requirements: < 1242 mm, do not allow; > = 1242 mm, < = 2 mm 1242 mm, < = 3 mm Beheading (shear) extension deformation: < 1242 mm billet: no control; The slab: < = 15 mm Surface tilt: no more than billet section 0.1 Bending: every 1 m length is not more than 10 mm The distortion: length < = 5 m, < = 11. ; The length of the < = 7.5 M, < = 5. Material % 3 sp/PS chemical composition: C Mn Si S P
Mainly from the shape is divided into two kinds:Slab: cross section width and height of the ratio of the larger, mainly used for rolling plate.Billet: equal cross section width and height, or a huge difference, mainly used for rolling steel, wire rod.Material part of the standard:Range of thickness: 150-240 - mm + / - 5 mmThe width of the range: 880-1530 - mm + / - 20 mmLength: 3700-10000 - mm + / - 500 - mmCross-sectional size: 64 * 64;82 * 82;98 * 98;124 * 124;120 * 150;152 * 164;152 * 170 mm
5.FAQ of Continue Casting Steel Bloom Made by Blast Furnace
We have organized several common questions for our clients，may help you sincerely：
①Could we get the SGS Certificate with other documents together?
Yes you can if you pay the SGS inspecting fee in advanced, we will arrange that inspection for you before loading and will get the certificate then.
②If some quality problem happen, how long we can get the settlement?
about 7-30 days, depands on the situation of the cargo, if you report it earlier, it will be easier to check and get the result of inspecting, or you can apply the SGS inspecting.
③How many tons is the Minimum order quantity?
The Minimum order quantity is 1000tons, if your spec. is normal size, otherwise, need to comfirm with our steel mill for the detail order.
- Q: What are the main factors affecting the tensile strength of steel billets?
- The main factors affecting the tensile strength of steel billets include the chemical composition of the steel, the heat treatment process, the presence of impurities or defects in the material, the grain size and orientation, and the processing conditions used during manufacturing.
- Q: Are steel billets used in the production of electrical appliances?
- Steel billets are widely utilized in the production of electrical appliances. This versatile material possesses numerous benefits, including strength, durability, and corrosion resistance. Hence, it finds extensive application in manufacturing different components of electrical appliances, such as outer casings, frames, and internal structural supports. Steel billets serve as an intermediary product during the steel manufacturing process and can be further transformed into various shapes and sizes to cater to the specific demands of electrical appliance production.
- Q: Are steel billets used in the manufacturing of oil and gas pipelines?
- Yes, steel billets are commonly used in the manufacturing of oil and gas pipelines. These billets are typically formed into seamless or welded pipes, which are then used to transport oil and gas over long distances. The high strength and durability of steel make it an ideal material for withstanding the harsh conditions encountered in the oil and gas industry.
- Q: How do steel billets contribute to the oil and gas industry?
- Steel billets contribute to the oil and gas industry by being used as a key material for the construction of various equipment and infrastructure. These billets are transformed into pipes, valves, fittings, and other components that are crucial for the extraction, transportation, and processing of oil and gas. The strength and durability of steel make it ideal for withstanding the harsh conditions and high pressures encountered in these operations, ensuring the safety and efficiency of the industry.
- Q: What are the specifications for alloy steel billets used in the defense industry?
- The defense industry requires alloy steel billets that meet specific criteria for each project. However, there are commonly followed specifications. Firstly, strict material standards must be met, and certification to military or industry specifications is necessary. These specifications cover the chemical composition, mechanical properties, and heat treatment of the alloy steel. The chemical composition is crucial as it determines the material's strength, hardness, and resistance to corrosion and high temperatures. Alloying elements like chromium, molybdenum, vanadium, and nickel are commonly used. Additionally, the carbon content is controlled to achieve desired strength and toughness. In terms of mechanical properties, defense applications require high strength, toughness, and impact resistance. The billets must withstand extreme conditions like high pressure, shock, and vibrations. Specific heat treatments, such as quenching and tempering, may be employed. Dimensional specifications are also important, including precise size and shape tolerances and surface finish requirements. This ensures compatibility with manufacturing processes and final products. Furthermore, certification to industry or military standards like MIL-STD or ASTM specifications may be necessary. These standards outline testing methods, quality control requirements, and performance criteria for the alloy steel billets. Overall, the specifications for alloy steel billets used in the defense industry cover chemical composition, mechanical properties, dimensional tolerances, and adherence to industry or military standards. These specifications are vital for ensuring the performance, durability, and safety of defense products.
- Q: What are the common surface defects in steel billets during cooling?
- There are several surface defects that can occur during the cooling process of steel billets. These defects can be caused by factors such as improper handling, inadequate cooling techniques, or impurities in the material. Some of the most common surface defects observed in steel billets during cooling are as follows: 1. Scale Formation: When the steel is exposed to air during the cooling process, a thin layer of oxides called scale forms on its surface. This can result in a rough and uneven surface, which diminishes the overall quality of the billet. 2. Cracks: Thermal stresses induced in the steel during cooling can lead to the formation of cracks. These cracks can be longitudinal, transverse, or even intergranular, and they compromise the structural integrity of the billet. 3. Lamination: Insufficient bonding during the cooling process can cause layers or sheets of steel to separate, resulting in lamination defects. This weakens the billet and reduces its overall strength. 4. Shrinkage Cavities: As the steel solidifies and contracts during cooling, voids or cavities called shrinkage cavities can form on the surface of the billet. These cavities weaken the steel and affect its mechanical properties. 5. Surface Roughness: Inadequate cooling techniques can cause uneven cooling and rapid solidification, ultimately leading to a rough and uneven surface texture on the billet. This defect affects the surface finish of the billet and subsequent processing. 6. Decarburization: Exposure to high temperatures and oxygen during the cooling process can cause the surface of the billet to lose carbon content, resulting in decarburization. This reduces the hardness and strength of the affected areas. To minimize these surface defects, it is crucial to implement proper cooling techniques, including controlled cooling rates, the use of protective coatings, and appropriate handling practices. Regular inspection and quality control measures are also essential to identify and rectify any defects during the cooling process, ensuring the production of high-quality steel billets.
- Q: How are steel billets tested for quality?
- To ensure that steel billets meet the necessary standards and specifications, a series of rigorous procedures are employed to test their quality. These tests play a crucial role in determining the mechanical properties, composition, and strength of the billets. Ultrasonic testing (UT) is a commonly used method to assess the quality of steel billets. This technique involves transmitting high-frequency sound waves through the billet and detecting their reflection using a receiver. By doing so, any internal defects or inconsistencies within the material can be identified. Another significant test is hardness testing, which involves measuring the surface hardness of the billet using techniques like the Brinell, Rockwell, or Vickers hardness test. This helps evaluate the billet's resistance to indentation and provides insights into its durability and strength. Chemical composition analysis is also vital in assessing the quality of steel billets. Samples are taken from the billet and subjected to chemical analysis to measure the concentrations of different elements present, such as carbon, sulfur, and manganese. This analysis verifies whether the billet meets the required composition standards. Furthermore, physical tests like tensile testing are conducted to determine the mechanical properties of the steel billets. This involves applying controlled force to the billet and measuring the resulting deformation or elongation. Tensile testing assesses the billet's strength, ductility, and other mechanical properties. Visual inspection by qualified inspectors is another crucial aspect of quality testing. They meticulously examine the billets for any surface defects, cracks, or irregularities that could impact their quality or performance. In conclusion, steel billets undergo a comprehensive range of testing procedures, including ultrasonic testing, hardness testing, chemical composition analysis, physical tests, and visual inspection. These tests are essential in ensuring that the billets meet the required quality standards, confirming their strength, composition, and overall quality before they are utilized in various industrial applications.
- Q: What are the different types of steel billet rolling defects?
- There are several types of steel billet rolling defects that can occur during the rolling process. These defects can negatively impact the quality and integrity of the finished product. Some of the most common types of steel billet rolling defects include: 1. Surface cracks: These are small cracks that appear on the surface of the billet. They can occur due to improper cooling or excessive rolling pressure. Surface cracks can compromise the strength and durability of the steel. 2. Center cracks: Center cracks occur in the inner core of the billet. They are usually caused by improper temperature control during the rolling process. Center cracks can lead to structural weaknesses and reduced performance of the steel. 3. Scalloping: Scalloping refers to the formation of shallow depressions or grooves on the surface of the billet. It usually occurs due to uneven or improper rolling pressure distribution. Scalloping can affect the appearance and surface quality of the steel. 4. Lamination: Lamination defects involve the separation of layers within the billet. They can occur due to the presence of impurities or inclusions in the steel, as well as improper heating or rolling conditions. Lamination defects can weaken the steel and increase the risk of failure. 5. Wavy edges: Wavy edges occur when the edges of the billet become uneven or distorted during the rolling process. This can be caused by improper alignment or uneven pressure distribution. Wavy edges can affect the dimensional accuracy and overall quality of the steel. 6. Surface defects: Surface defects include scratches, pits, or other imperfections on the surface of the billet. They can occur due to inadequate cleaning or handling procedures, as well as improper rolling conditions. Surface defects can impact the appearance and surface quality of the steel. Overall, these steel billet rolling defects can have significant implications for the quality, performance, and safety of the finished product. It is important for manufacturers to closely monitor the rolling process and implement proper quality control measures to minimize the occurrence of these defects.
- Q: What are the different heat treatment processes for steel billets?
- Steel billets can undergo various heat treatment processes, each serving a specific purpose and offering distinct advantages. Among the commonly used processes are annealing, normalizing, quenching, tempering, and case hardening. 1. Annealing: The steel billets are heated to high temperatures and gradually cooled to room temperature. This process aims to reduce hardness, enhance machinability, relieve internal stresses, and refine the grain structure, resulting in a more ductile and less brittle steel. 2. Normalizing: By heating the steel billets above the critical range and cooling them in still air, the normalizing process refines the grain structure, improves mechanical properties and machinability, relieves internal stresses, and achieves uniformity in microstructure. 3. Quenching: Rapid cooling of steel billets is achieved by immersing them in a quenching medium like oil, water, or brine. Quenching transforms the austenite phase into martensite, making the steel harder and more wear-resistant. However, it may introduce residual stresses and the risk of cracking. 4. Tempering: Following quenching, tempering is often performed to reduce brittleness and enhance toughness. The quenched steel is reheated to a lower temperature and held for a specific time period. This process relieves stresses, decreases hardness, and improves ductility without sacrificing too much strength. 5. Case Hardening: This process elevates the surface hardness of steel billets while maintaining a tough and ductile core. Carburizing and nitriding are two common methods of case hardening. Carburizing involves heating the steel in a carbon-rich environment to introduce carbon into the surface. Nitriding, on the other hand, introduces nitrogen to form a hard nitride layer. These processes enhance wear resistance and prolong the lifespan of the steel billets. These heat treatment processes allow manufacturers to customize the properties of steel billets to meet specific application requirements. By carefully selecting and implementing the appropriate process, the resulting steel billets can exhibit a wide range of mechanical properties, including hardness, strength, toughness, and wear resistance.
- Q: How are steel billets used in the manufacturing of machinery and equipment?
- Steel billets are an essential component in the manufacturing of machinery and equipment. These billets, which are semi-finished steel products, serve as the raw material that is further processed to create various components used in machinery. To begin with, steel billets are heated to a high temperature and then rolled or forged into different shapes, such as bars, rods, or tubes. These shapes are then machined and fabricated into specific parts and components required in machinery and equipment. For instance, steel billets can be transformed into gears, shafts, axles, pistons, and other crucial components that are used in engines, turbines, and other types of machinery. The use of steel billets in manufacturing machinery and equipment offers several advantages. Firstly, steel is known for its exceptional strength and durability, making it a suitable material for heavy-duty applications. Steel billets provide the necessary strength and rigidity required to withstand the demanding conditions and stresses that machinery and equipment often experience during operation. Secondly, steel billets can be easily molded and shaped according to specific design requirements. This flexibility allows manufacturers to produce complex and intricate components that are critical for the efficient functioning of machinery. The ability to customize the shape and size of steel billets enables the production of parts that fit seamlessly within the machinery, ensuring optimum performance and functionality. Moreover, steel billets possess excellent mechanical properties, including high tensile strength, hardness, and resistance to wear and corrosion. These properties not only enhance the longevity of machinery but also contribute to its overall performance and reliability. Steel billets are capable of withstanding harsh operating conditions and can endure significant loads and forces without deformation or failure. In conclusion, steel billets play a pivotal role in the manufacturing of machinery and equipment. Through various processing techniques, these billets are transformed into different components that are vital for the operation of machinery. The strength, flexibility, and durability offered by steel billets make them an ideal choice for the production of machinery that can withstand the demanding requirements of various industries.
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Continue Casting Steel Bloom Made by Blast Furnace
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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