• TK 440 superior hot rolled Carbon Steel Billets Square Billets System 1
  • TK 440 superior hot rolled Carbon Steel Billets Square Billets System 2
TK 440 superior hot rolled Carbon Steel Billets Square Billets

TK 440 superior hot rolled Carbon Steel Billets Square Billets

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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

TK 440 superior hot rolled Carbon Steel Billets Square Billets


Q:What are the main factors affecting the surface finish of steel billets?
Several key factors can be attributed to the surface finish of steel billets. Firstly, the quality and cleanliness of the raw materials used in the steelmaking process play a significant role. Surface defects and imperfections can occur if there are impurities or contaminants in the raw materials. Secondly, the manufacturing process's processing parameters directly impact the surface finish. Factors like temperature, speed, and pressure can affect the formation of scale, oxidation, and other surface abnormalities. Excessive scaling can result from high temperatures, while inadequate scale removal can occur due to insufficient temperature control. Furthermore, the surface finish of steel billets is influenced by the type and condition of the equipment used for production. 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 also impact the surface finish. These substances protect the billets from oxidation and reduce friction. However, incorrect application or the use of the wrong lubricant can lead to uneven coating, streaking, or other surface irregularities. Lastly, the handling and storage of steel billets after production can affect 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 surface finish of steel billets is influenced by the quality of raw materials, processing parameters, equipment condition, lubricant and coating application, 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:How do steel billets contribute to the manufacturing of machinery and equipment?
The role of steel billets in the manufacturing of machinery and equipment is crucial. These semi-finished steel products serve as raw materials in various manufacturing processes. A primary contribution of steel billets to machinery and equipment manufacturing lies in the production of steel bars and rods. These shapes, essential components in the construction of machinery and equipment, are created by heating and then rolling or forging steel billets. Steel bars and rods provide strength, durability, and stability to machine structures. Additionally, steel billets are utilized in the production of other steel components such as gears, crankshafts, and axles. These components are vital for the proper functioning of machinery and equipment, requiring the high strength and toughness offered by steel billets. Manufacturers can rely on steel billets to ensure their machinery and equipment can withstand heavy loads, vibrations, and other demanding conditions. Furthermore, steel billets are commonly employed in the production of steel pipes and tubes, which find widespread use across various industries. These pipes and tubes are essential for transporting fluids, gases, and other materials within machinery and equipment. By utilizing steel billets, manufacturers can create pipes and tubes that not only possess strength and durability but also resist corrosion and wear. Moreover, steel billets contribute to machinery and equipment manufacturing by enabling the production of precision-engineered components. Manufacturers can machine, drill, and shape these billets to meet the specific requirements of different machinery and equipment. This flexibility allows manufacturers to produce intricate and complex components necessary for the efficient operation of machines. Overall, steel billets are integral to the machinery and equipment manufacturing process. They provide the necessary strength, durability, and versatility required to produce components capable of withstanding the demanding conditions of industrial applications. Without steel billets, the manufacturing industry would face difficulties in producing reliable, efficient, and long-lasting machinery and equipment.
Q:What is the role of steel billets in the manufacturing of automotive engine components?
The production of automotive engine components relies heavily on steel billets, which are crucial in this process. These billets, essentially halfway finished steel items, act as the primary raw material for forging a variety of engine parts. The automotive industry has a high demand for engines that are efficient, durable, and capable of withstanding extreme conditions. Steel billets possess the necessary characteristics to meet these requirements. They are made from top-quality steel alloys, which exhibit exceptional strength, toughness, and resistance to heat. Once obtained, the steel billets go through a series of manufacturing processes to convert them into engine components like crankshafts, connecting rods, camshafts, and valve springs. Among these methods, forging is the most commonly used technique to shape the billets into these parts. During the forging process, the steel billets are heated to a specific temperature, making them more malleable. They are then subjected to high pressure, which molds them into the desired form. This process guarantees that the engine components possess the necessary strength and integrity to withstand the high stresses and temperatures experienced within an engine. One of the main advantages of utilizing steel billets in the production of automotive engine components is their ability to deliver superior performance and durability. Steel has a high tensile strength, enabling the engine parts to endure the intense forces and vibrations encountered during operation. Furthermore, steel's resistance to heat ensures that these components can withstand the elevated temperatures generated in the engine without deforming or failing. Aside from their mechanical properties, steel billets also offer cost-effectiveness in the manufacturing process. Steel is widely available and relatively inexpensive, making it an economically viable choice for mass production in the automotive industry. In conclusion, steel billets are indispensable in the production of automotive engine components due to their exceptional strength, durability, and resistance to heat. These semi-finished steel products serve as the basis for forging engine parts that can withstand the demanding conditions of automotive engines, ensuring the production of reliable and high-performance vehicles.
Q:What are the main factors affecting the wear resistance of steel billets?
The wear resistance of steel billets can be influenced by several key factors. Firstly, the composition of the steel plays a crucial role. The presence of specific alloying elements, like chromium, manganese, and molybdenum, greatly enhances the steel's wear resistance. These elements form carbides and other compounds that create a durable and hard surface capable of withstanding abrasion. In addition, the microstructure of the steel is vital in determining its wear resistance. Fine-grained steels tend to have better wear resistance due to their smaller grain size, which provides a more uniform and dense structure, reducing the likelihood of cracks and wear. Heat treatment processes, such as quenching and tempering, can further refine the microstructure and enhance wear resistance. The surface finish also affects wear resistance. A smooth and well-polished surface reduces friction between the steel billet and its surroundings, minimizing wear. Various machining techniques, such as grinding and polishing, can be used to achieve the desired surface finish. Furthermore, the hardness of the steel billet is a significant factor in wear resistance. Hardness is commonly measured using the Rockwell or Brinell scales, and higher hardness values generally indicate improved wear resistance. Heat treatment, alloying, and the addition of hardening agents can all help increase the hardness of the steel billet. Lastly, environmental factors can impact wear resistance. The presence of corrosive substances, high temperatures, or abrasive particles in the working environment can accelerate wear and reduce the lifespan of the steel billet. Implementing appropriate coatings, like chromium plating or thermal spraying, can mitigate these environmental effects and enhance wear resistance.
Q:How has the demand for steel billets changed over time?
Various factors have impacted the demand for steel billets, resulting in fluctuations over time. Historically, there has been a consistent increase in demand due to global industrialization and urbanization. As construction and infrastructure projects expanded, the need for steel billets as raw material also grew. However, economic cycles have affected the demand for steel billets. During periods of economic downturns, such as the 2008 global financial crisis, demand decreased as construction and manufacturing activities slowed. This led to an oversupply of steel billets, causing prices to drop and steel mills to reduce their demand. Recent years have seen the demand for steel billets influenced by global trends and geopolitical factors. The focus on sustainable development and environmental concerns has led to a rising demand for green construction materials, including recycled steel. To meet this demand, steel manufacturers have adjusted their production processes. Geopolitical factors, such as trade disputes and tariffs, have also impacted the demand for steel billets. The imposition of tariffs on steel imports by certain countries has reduced demand for imported billets while increasing demand for domestically produced ones. The COVID-19 pandemic had a significant impact on the demand for steel billets. Lockdowns, travel restrictions, and disrupted supply chains caused a decline in construction and manufacturing, resulting in reduced demand. However, as economies recover and governments implement stimulus measures for infrastructure projects, the demand for steel billets is expected to gradually recover. In conclusion, the demand for steel billets has fluctuated over time due to economic cycles, global sustainability trends, geopolitical factors, and the COVID-19 pandemic. Long-term growth in demand remains closely tied to construction and infrastructure development, necessitating adaptability from steel manufacturers.
Q:How are steel billets used in the production of axles?
Steel billets are an indispensable element when manufacturing axles, as they serve as the raw material for their production. The initial step in the production process involves heating the steel billets to a specific temperature, which enhances their malleability. This heating process, known as forging or hot rolling, enables the billets to be molded and manipulated into the desired axle shape. Once the billets have reached the appropriate temperature, they are placed in either a forging press or a rolling mill. In the forging process, the billets are subjected to high pressure, resulting in the desired axle shape. This process may involve multiple steps, such as hammering, pressing, or extrusion, to achieve the desired dimensions and shape. Following the forging process, the axle typically undergoes heat treatment to enhance its durability and strength. This involves heating the axle to a specific temperature and then rapidly cooling it through a process called quenching. The heat treatment process aids in improving the axle's hardness and resistance to wear and tear. After the forging and heat treatment processes, the axles may undergo further procedures such as machining, grinding, or finishing. These additional steps are carried out to achieve the required surface finish and dimensional accuracy, ensuring that the axles meet the necessary specifications and can seamlessly integrate into the final product. In conclusion, steel billets play a crucial role in axle production, serving as the starting point for the manufacturing process. They undergo heating, forging, and shaping to create the desired axle form. The resulting axles are then subjected to heat treatment and additional processes to meet specifications. Steel billets are essential for producing top-quality and long-lasting axles, which are critical components in various industries, including automotive, railway, and heavy machinery.
Q:What are the different types of surface defect detection methods for steel billets?
Steel billets are subject to various methods of surface defect detection. Among the techniques commonly used are visual inspection, magnetic particle inspection, ultrasonic testing, eddy current testing, and laser scanning. 1. The simplest and most traditional method is visual inspection, where trained inspectors visually examine the surface of steel billets for cracks, scratches, or foreign material. 2. Magnetic Particle Inspection (MPI) is a non-destructive testing method that uses magnetic fields and iron particles to detect surface defects. The billet is magnetized, and iron particles are applied to the surface. Any defect causes a leakage of magnetic flux, attracting the iron particles and forming visible indications. 3. Ultrasonic Testing (UT) utilizes high-frequency sound waves to detect internal and surface defects in steel billets. Ultrasonic waves are emitted into the billet by a transducer, and the reflected waves are analyzed to identify flaws or irregularities. 4. Eddy Current Testing (ECT) makes use of electromagnetic induction to detect surface defects. A coil carrying an alternating current is placed near the billet's surface, generating eddy currents. Any variation in the surface, such as cracks or corrosion, alters the eddy currents, which are then detected by the instrument. 5. Laser Scanning is a relatively advanced method that employs laser technology to scan the surface of steel billets. The laser beam reflects off the surface, and a sensor analyzes the reflected light to identify surface defects like scratches or dents. These methods differ in terms of sensitivity, speed, and cost-effectiveness. The selection of the appropriate surface defect detection method depends on factors such as the required level of accuracy, the types of defects to be detected, and the specific requirements of the industry.
Q:What is the role of steel billets in the manufacturing of tools and dies?
Steel billets play a crucial role in the manufacturing of tools and dies as they serve as the raw material for shaping and forming these components. Billets are heated, forged, and machined to create the desired shape and strength required for tools and dies. The high-quality, durable nature of steel billets ensures that the resulting tools and dies possess the necessary hardness, toughness, and wear resistance to withstand the demanding conditions of their applications.
Q:What are the different production methods for steel billets?
There are several different production methods for steel billets, including continuous casting, ingot casting, and direct hot rolling. Continuous casting involves pouring molten steel into a water-cooled mold to form a continuous strand, which is then cut into desired lengths. Ingot casting involves pouring molten steel into individual molds to form solid blocks, which are later reheated and rolled into billets. Direct hot rolling involves passing a large steel ingot through a series of rolling mills to reduce its size and shape it into a billet.
Q:Are steel billets used in the production of electrical transmission towers?
The utilization of steel billets is widespread in the manufacturing of electrical transmission towers. At the onset of the production process, steel billets serve as the primary form of steel. They are typically shaped and sized through hot rolling, resulting in various sections and components required for constructing transmission towers. Due to its remarkable strength and durability, steel emerges as the perfect material for such structures, which must endure harsh environmental conditions and uphold heavy electrical conductors. Additionally, steel possesses exceptional electrical conductivity properties, a vital characteristic for ensuring the efficient transmission of electricity through the towers. In summary, steel billets assume a pivotal role in the creation of electrical transmission towers, guaranteeing their strength, durability, and efficiency.

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