• Hot rolled Carbon Steel Billets Square Billets System 1
  • Hot rolled Carbon Steel Billets Square Billets System 2
Hot rolled Carbon Steel Billets Square Billets

Hot rolled Carbon Steel Billets Square Billets

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
16021 m.t./month

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Item specifice

Price term:
FOB/CIF/ CFR according to clients requirements
Payment terms:
100%Irrevercable L/C at sight or T/T
Length:
6~12 meters
Size:
100mm to 165mm
Grade:
Q195/Q215/Q235/Q275

 

Steel billet :

 

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. 

The billet is mainly divided into two kinds from the shape: 

Slab: cross section width and height of the ratio of the larger, mainly used for rolling plate. 

 

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

 

Hot rolled Carbon Steel Billets Square Billets

Hot rolled Carbon Steel Billets Square Billets

Hot rolled Carbon Steel Billets Square Billets

Hot rolled Carbon Steel Billets Square Billets

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:How are steel billets tested for internal defects?
Steel billets are tested for internal defects through a variety of non-destructive testing methods. One of the most common methods used is ultrasonic testing (UT). During this process, high-frequency sound waves are transmitted into the billet, and the reflections of these waves are analyzed to detect any internal defects such as cracks, voids, or inclusions. UT can provide accurate and detailed information about the size, location, and nature of the defects. Another method used is magnetic particle inspection (MPI). This technique involves magnetizing the billet and applying iron particles to its surface. If there are any internal defects, the magnetic field will cause these particles to gather around them, making them visible and detectable. Eddy current testing (ECT) is also employed to assess the internal quality of steel billets. It utilizes electromagnetic induction to create eddy currents within the material. Any changes in the electrical conductivity or magnetic permeability caused by internal defects can be detected by analyzing the variations in the induced current. Additionally, radiographic testing (RT) is utilized to inspect the internal structure of steel billets. X-rays or gamma rays are directed towards the billet, and the resulting radiographic image can reveal any internal defects such as voids, cracks, or inclusions. Other methods, such as dye penetrant testing and visual inspection, can also be used to detect superficial and near-surface defects in steel billets. These methods involve applying a liquid or dye to the surface of the billet, which will seep into any cracks or surface irregularities, making them visible under certain lighting conditions. Overall, a combination of these non-destructive testing methods is employed to ensure the quality and integrity of steel billets by effectively detecting any internal defects that could compromise their structural integrity and performance.
Q:How are steel billets used in the manufacturing of valves and fittings?
Steel billets are an essential raw material used in the manufacturing of valves and fittings. These billets are solid, semi-finished steel forms that are cast into specific shapes and sizes. To begin the manufacturing process, steel billets are heated to a high temperature and then passed through a series of rolling mills to shape them into the desired form. This process helps to refine the grain structure of the steel, enhancing its strength, ductility, and overall quality. Once the steel billets are shaped, they are further processed and machined to create various components of valves and fittings. These components include bodies, bonnets, stems, and other essential parts that make up the valve or fitting. The precision machining of the billets ensures that the dimensions are accurate and the surfaces are smooth, allowing for proper assembly and functioning of the valves and fittings. Steel billets also play a crucial role in providing the necessary strength and durability to valves and fittings. The high-quality steel used in these billets ensures that the final products can withstand the harsh operating conditions, pressure, and temperature variations they may encounter in their applications. Additionally, steel billets can be used to manufacture various types of valves and fittings, such as gate valves, ball valves, butterfly valves, and pipe fittings. This versatility allows manufacturers to produce a wide range of products to meet different industry requirements. In conclusion, steel billets are used in the manufacturing of valves and fittings as a primary raw material. Their shaping, processing, and machining ensure the production of high-quality components that provide strength, durability, and precision in the final products.
Q:What are the different types of surface finish methods used for steel billets?
There are several types of surface finish methods used for steel billets, each serving different purposes and achieving distinct surface characteristics. These methods include: 1. Hot rolling: This method involves passing the steel billet through a series of heated rollers, which compress and shape the material. The hot rolling process creates a smooth and glossy surface finish on the steel billet. 2. Shot blasting: In shot blasting, small metallic or non-metallic particles are propelled at high speeds onto the surface of the steel billet. This process removes any scale, rust, or contaminants, resulting in a clean and textured surface finish. 3. Pickling: Pickling is a chemical process that involves immersing the steel billet in an acid solution to remove any oxide scale or surface impurities. This method provides a smooth and corrosion-resistant surface finish. 4. Grinding: Grinding involves using abrasive wheels or belts to remove material from the surface of the steel billet. This process can be used to achieve a precise and smooth surface finish for various applications. 5. Polishing: Polishing is a mechanical process that uses abrasive materials to remove any imperfections or roughness from the surface of the steel billet. This method results in a high-gloss, mirror-like finish. 6. Cold rolling: Similar to hot rolling, cold rolling involves passing the steel billet through a series of rollers. However, in this process, the steel billet is not heated, resulting in a smoother and more precise surface finish. 7. Coating: Coating is a surface finish method that involves applying a protective layer or coating onto the steel billet. This can include paints, varnishes, or specialized coatings to enhance the appearance, durability, or corrosion resistance of the steel billet. Each of these surface finish methods has its advantages and is chosen based on the desired application, aesthetics, and functional requirements of the steel billet.
Q:How do steel billets contribute to the overall weight reduction of a structure?
There are several ways in which steel billets contribute to reducing the overall weight of a structure. Firstly, through a process called continuous casting, steel billets can be precisely shaped and sized, resulting in lighter and more compact billets. This, in turn, decreases the weight of the structure. Secondly, advanced alloys and compositions can be used to make steel billets with high strength-to-weight ratios. These alloys are specifically designed to provide the same level of strength and durability as traditional steel, but with a lower weight. By incorporating these lightweight steel billets into the construction of a structure, the overall weight can be significantly reduced without sacrificing strength and performance. In addition, steel billets can be employed in the manufacturing of complex shapes and structures using techniques such as extrusion and forging. These methods allow for the creation of intricate designs and structures, eliminating the need for additional components and reducing the overall weight of the structure. Furthermore, steel billets can be used in the construction of lightweight structural elements such as beams, columns, and trusses. These elements can be designed to have hollow sections or thinner profiles, which reduces the amount of steel needed while still maintaining structural integrity. This results in a substantial decrease in the overall weight of the structure. In conclusion, steel billets contribute to weight reduction in structures by enabling the production of lighter and more compact components, utilizing advanced alloys with high strength-to-weight ratios, allowing for the creation of complex shapes and structures, and facilitating the construction of lightweight structural elements.
Q:How do steel billets contribute to the overall vibration resistance of a structure?
The specific characteristics of steel billets make a significant contribution to the overall vibration resistance of a structure. Primarily, steel is a dense and rigid material, giving it a high natural frequency. This allows steel billets to effectively absorb and dissipate energy from external vibrations, surpassing the capabilities of other materials. Additionally, steel billets exhibit exceptional damping properties. Damping refers to a material's ability to diminish the magnitude of vibrations over time. Due to their density and rigidity, steel billets can rapidly absorb and dissipate vibrations, thus preventing their spread throughout the structure. This aids in reducing overall vibration levels and subsequently enhances the structure's resistance to vibrations. Furthermore, steel billets possess remarkable tensile strength and stiffness, enabling them to withstand deformation caused by dynamic loads. Consequently, when subjected to vibration forces, steel billets retain their shape and structural integrity, minimizing the risk of failure or damage. The high tensile strength of steel also allows it to endure external forces without enduring substantial deformation or permanent harm. Moreover, steel billets can be specifically designed and manufactured to precise dimensions and shapes, facilitating their optimal integration into various structural components. This ensures that steel billets are positioned optimally within the structure, thereby enhancing their capabilities to resist vibrations. In summary, steel billets contribute to a structure's overall vibration resistance by effectively absorbing and dissipating vibrations, resisting deformation, and maintaining structural integrity. Through these properties, steel billets mitigate the impact of external vibrations, ensuring the durability and stability of the structure.
Q:What is the role of steel billets in the manufacturing of wind turbines?
The manufacturing of wind turbines heavily relies on steel billets, which are semi-finished steel products that usually come in rectangular or square shapes. These billets are used as raw materials to produce various wind turbine components. One vital application of steel billets in wind turbine manufacturing is for constructing the tower. The tower needs to possess exceptional strength and stability to bear the weight of the entire structure and withstand wind forces. Steel's high strength-to-weight ratio makes it an ideal material for tower construction. Initially, steel billets are cut and shaped into cylindrical sections, which are then welded together to form the tower structure. This ensures the tower's robustness and ability to withstand the harsh environmental conditions faced by wind turbines. Furthermore, steel billets find usage in manufacturing other components like the rotor hub and nacelle. The rotor hub connects the blades to the main shaft, while the nacelle houses the gearbox and generator. These components require high durability and reliability to ensure optimal wind turbine performance. Steel billets are meticulously molded and machined to obtain the desired shapes for creating these components, providing the necessary strength and structural integrity. Additionally, steel billets are employed in the production of various smaller parts essential for assembling and securing different wind turbine components, such as brackets, bolts, and fasteners. To summarize, steel billets form the foundation for wind turbine manufacturing. They are transformed into strong structures and components that constitute the essential parts of these renewable energy systems. Their strength, durability, and versatility make them vital materials in wind turbine production, guaranteeing reliable operation and contributing to sustainable energy generation.
Q:How do steel billets come out?
I. mining1, iron ore2 limestone mine3, coal mineTwo 、 burden preparation1. Iron ore sintering2 coking coal cokingThree, iron: in the blast furnace, sintering iron ore, limestone, coke, iron ore in the iron elements reduced to metal iron, then the product is pig iron.
Q:What are the potential applications of steel billets in the medical aftermarket?
The medical aftermarket offers a wide range of potential applications for steel billets. One important application is the manufacture of surgical instruments, such as scalpels, forceps, scissors, and orthopedic implants. Steel billets are capable of producing high-quality and durable surgical instruments due to the strength and corrosion resistance of steel. Furthermore, steel billets are also useful in the production of medical equipment and devices. For instance, they can be used to create components for X-ray machines, CT scanners, and MRI machines. The excellent conductivity and high strength-to-weight ratio of steel make it a suitable choice for these demanding applications. In addition, steel billets can be utilized in the manufacturing of medical furniture and fixtures. Steel is commonly employed in the construction of hospital beds, examination tables, and cabinets due to its durability and ease of maintenance. Steel billets can provide the necessary raw material for the production of these essential medical items. Moreover, steel billets can also be employed in the fabrication of prosthetics and orthotics. These devices often require materials that are both strong and lightweight to ensure proper functionality and comfort for patients. Steel billets can be processed into various shapes and sizes to create prosthetic limbs, braces, and other orthopedic devices. In summary, the diverse and crucial potential applications of steel billets in the medical aftermarket cannot be underestimated. From surgical instruments to medical equipment, furniture, and prosthetics, steel billets possess the necessary qualities of strength, durability, and corrosion resistance to meet the demanding requirements of the medical industry.
Q:What are the different methods of steel billet inspection?
There are several methods of steel billet inspection, including visual inspection, ultrasonic testing, magnetic particle inspection, eddy current testing, and X-ray inspection.
Q:How are steel billets used in the production of turbine blades?
Turbine blades rely heavily on steel billets, which serve as a fundamental building block in their production. These billets, essentially semi-finished steel products, serve as the initial material for the manufacturing process. To commence, the selection of steel billets is a meticulous process, taking into account specific requirements such as composition, strength, and durability. Once chosen, the billets undergo a series of processing steps to transform them into turbine blades. The initial step involves subjecting the steel billets to high temperatures in a furnace, a process known as forging. This procedure enhances the malleability of the steel, making it easier to work with. Once heated, the billets are then shaped into turbine blades through the application of mechanical forces. Following the initial forging process, the turbine blades are refined through a range of machining operations. These operations encompass precision cutting, grinding, and drilling, all aimed at achieving the desired dimensions, surface finish, and aerodynamic profiles. Aside from shaping and refinement, steel billets also play a pivotal role in strengthening and ensuring the integrity of turbine blades. Through heat treatment processes like quenching and tempering, the billets are hardened and tempered, resulting in desired mechanical properties such as high strength and resistance to fatigue. Moreover, steel billets provide the necessary material properties to withstand the harsh operating conditions of turbines. They exhibit excellent corrosion resistance, a crucial attribute for blades operating in environments with high temperatures, pressure, and moisture. In summary, steel billets are indispensable in turbine blade production as they serve as the starting material, facilitate shaping and refinement, and offer the required strength and durability for these critical components in power generation.

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