Steel billet from China for sale in good quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 16542 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
You Might Also Like
Specification
Size:
100mm to 165mm
Grade:
Q195/Q215/Q235/Q275
Length:
6~12meters
Billets, or ingots (as they sometimes referred to), are not of practical use until they have been formed
into more functional shapes and sizes. While they have already been put in the furnace, they still require
a series of shaping and molding procedures such as hot and cold working, milling and cutting before they
are sold in hardware stores, or used for different applications. The unformed billets, however, can be used
in striking currency such as coins and as reserves, similar to gold bars.
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: How are steel billets used in the manufacturing of gears?
- Gears, which are mechanical devices that transmit power and motion, rely heavily on steel billets for their production. These billets, obtained through casting or rolling, are semi-finished steel products that serve as the foundation for gear manufacturing. To begin the process, the steel billets are heated to a specific temperature and then subjected to mechanical force, such as hammering or pressing, to shape them into the desired gear form. Once the initial shape is achieved, the billets undergo various machining operations, including milling, drilling, and grinding, to remove excess material and create precise dimensions and features. Steel billets offer numerous advantages in gear manufacturing. Their durability and strength allow them to handle heavy loads and high-speed rotations, while their excellent wear resistance ensures long-lasting performance. Additionally, steel billets can be easily machined to achieve intricate gear designs, enabling customization and optimization of gear performance. In conclusion, steel billets are indispensable in gear manufacturing as they provide the necessary strength, durability, and precision for gears to function effectively. Through forging and machining processes, these billets are transformed into gears capable of efficiently transmitting power and motion.
- Q: What are the different surface treatments for improved surface lubrication in steel billets?
- There are several surface treatments that can be applied to steel billets to improve surface lubrication. These treatments aim to reduce friction and wear during various manufacturing processes, such as rolling or extrusion. Some of the common surface treatments for improved surface lubrication in steel billets include: 1. Phosphating: This treatment involves the application of a phosphate coating to the steel surface. Phosphating creates a thin layer of a phosphate compound, which acts as a lubricant and reduces friction between the billet and the machinery during processing. 2. Nitriding: Nitriding is a process that introduces nitrogen into the steel surface, forming a nitride layer. This layer improves the surface hardness and wear resistance of the billet, enhancing its lubrication properties and reducing friction. 3. Electroplating: Electroplating involves depositing a layer of metal, such as zinc or nickel, onto the steel billet's surface. This coating not only improves lubrication but also provides corrosion protection, extending the lifespan of the billet. 4. Surface coating: Various types of coatings, such as Teflon or other polymer-based coatings, can be applied to steel billets. These coatings create a low-friction surface, preventing sticking or galling during processing. 5. Shot peening: Shot peening is a mechanical surface treatment that involves bombarding the steel surface with small, high-velocity metal shots. This process induces compressive stress in the surface layer, increasing its resistance to wear and reducing friction. 6. Case hardening: Case hardening is a heat treatment process that involves the diffusion of carbon or other alloying elements into the steel surface. This treatment forms a hardened outer layer, which enhances lubrication properties and reduces friction during processing. Overall, these surface treatments for improved surface lubrication in steel billets offer various advantages, such as reduced wear, improved efficiency, and extended tool life. The choice of treatment depends on the specific application requirements and the desired properties of the billet.
- Q: What are the different types of defects that can occur during casting of steel billets?
- During the casting of steel billets, various types of defects may arise, impacting the quality and integrity of the final product. Some commonly encountered defects are as follows: 1. Shrinkage: Shrinkage defects manifest when the metal cools and solidifies unevenly, resulting in voids or shrinkage cavities within the billet. This irregular cooling weakens the structure and diminishes its overall strength. 2. Porosity: Porosity refers to the presence of trapped gas or air bubbles within the billet. This defect can occur due to improper gating or venting, inadequate control of pouring temperature, or the existence of impurities in the molten metal. Porosity can reduce the mechanical properties of the billet and increase its susceptibility to failure. 3. Inclusions: Inclusions denote the presence of non-metallic materials, such as oxides, sulfides, or refractory particles, that become trapped in the billet during casting. These inclusions can weaken the metal, resulting in reduced ductility, increased brittleness, and decreased resistance to fatigue or corrosion. 4. Cold shuts: Cold shuts arise when two streams of molten metal fail to fuse adequately during casting, resulting in a visible line or seam within the billet. Cold shuts can weaken the billet and cause failure under stress. 5. Hot tearing: Hot tearing occurs when the solidifying metal is constrained from contracting, leading to localized cracking or tearing. This phenomenon is typically caused by high thermal stresses or insufficient feeding of the metal during solidification. Hot tearing significantly impacts the structural integrity of the billet. 6. Misruns: Misruns are defects that occur when the molten metal fails to completely fill the mold cavity. This defect can arise due to inadequate pouring temperature, improper gating or venting, or insufficient fluidity of the metal. Misruns result in incomplete, undersized, or malformed billets with reduced mechanical properties. 7. Surface defects: Surface defects encompass surface cracks, scabs, or roughness that may occur during the solidification or cooling process. These defects contribute to increased rejection rates, reduced machinability, and compromised surface finish of the billet. It is of utmost importance to identify and minimize these defects during the casting process to ensure the production of high-quality steel billets with the desired mechanical properties and dimensional accuracy.
- Q: Can steel billets be used in the production of railway infrastructure?
- Yes, steel billets can be used in the production of railway infrastructure. Steel billets are semi-finished steel products that can be further processed into various railway components such as rails, sleepers, and fasteners. Due to their high strength, durability, and ability to withstand heavy loads and harsh environmental conditions, steel billets are commonly used in the manufacturing of railway infrastructure to ensure the safety and efficiency of train operations.
- Q: What are the different methods of surface treatment for steel billets?
- There are several different methods of surface treatment for steel billets, each serving a specific purpose and offering unique benefits. Some of the most common methods include: 1. Pickling: This process involves immersing the steel billets in an acid solution to remove any surface impurities, such as rust or scale. Pickling helps to improve the surface finish and prepare the steel for further treatment or processing. 2. Shot blasting: In this method, steel billets are bombarded with high-speed steel shots or grits to remove surface contaminants and create a uniform texture. Shot blasting is commonly used to remove rust, scale, or paint, and it can also improve the adhesion of subsequent coatings or paints. 3. Galvanizing: This surface treatment involves coating the steel billets with a layer of zinc to provide corrosion resistance. Galvanizing can be done through hot-dip galvanizing, where the steel is immersed in a molten zinc bath, or through electroplating, where a thin layer of zinc is deposited on the surface using an electric current. 4. Painting or powder coating: Steel billets can be painted or powder coated to provide both aesthetic appeal and protection against corrosion. Paints or powder coatings create a barrier between the steel surface and the environment, preventing moisture and other corrosive agents from reaching the metal. 5. Passivation: This method involves treating the steel billets with a chemical solution, typically an acid, to remove any free iron or iron oxide from the surface. Passivation helps to enhance the corrosion resistance of stainless steel and other alloys by creating a passive oxide layer that protects against further oxidation or rusting. 6. Nitriding: Nitriding is a surface hardening treatment where the steel billets are exposed to a nitrogen-rich atmosphere at elevated temperatures. This process diffuses nitrogen into the surface of the steel, forming a hardened layer that increases wear resistance and improves fatigue strength. 7. Chrome plating: Steel billets can be coated with a layer of chromium through electroplating, providing enhanced corrosion resistance and a shiny appearance. Chrome plating is often used in applications where aesthetics and durability are important, such as automotive parts or decorative fixtures. These are just a few examples of the different methods of surface treatment for steel billets. The choice of method depends on factors such as the desired outcome, the specific properties required, and the intended application of the steel billets.
- Q: Can steel billets be painted or coated for decorative purposes?
- Yes, steel billets can be painted or coated for decorative purposes. The surface of steel billets can be prepared and treated to ensure proper adhesion of paint or coating, allowing for customization and enhancing their appearance for decorative applications.
- Q: How are steel billets marked for identification?
- Various techniques and methods are utilized to mark steel billets for identification. One common approach involves the use of marking stamps or dies, which contain specific alphanumeric characters or symbols that are pressed onto the billet's surface. This results in a permanent and visible mark that can be easily read and identified. Another method involves applying paint or ink to the surface of the billet, creating a distinct color or pattern. This mark can be visually inspected and compared to the corresponding identification code. In addition to manual methods, some steel billets are marked using laser engraving or etching. This precise technique utilizes a laser beam to remove a thin layer of material from the billet's surface, leaving a permanent identification mark. Laser marking is highly accurate and can produce detailed marks, including barcodes or QR codes that can be easily scanned for identification purposes. Furthermore, identification marks may be applied during the manufacturing process. These marks can include information such as steel grade, batch number, manufacturer's logo, or other relevant details. Hot stamping, embossing, or engraving techniques are commonly employed to ensure durability and visibility of these marks. Overall, a combination of manual techniques, such as marking stamps or paint marking, along with advanced methods like laser engraving or etching, are used to mark steel billets for identification. These identification marks play a vital role in traceability, quality control, and ensuring proper handling and usage of steel billets in various industrial applications.
- Q: How are steel billets used in the production of shipbuilding materials?
- Steel billets play a vital role in shipbuilding materials as they are necessary for producing strong and durable components. Shipbuilding requires materials that can withstand harsh marine conditions, and steel billets fulfill these requirements. To begin with, steel billets are utilized in the production of different types of steel plates. These plates form the basis of shipbuilding materials and are customized according to specific design needs, such as hull plating, bulkheads, decks, and superstructures. Steel billets provide the essential raw material for creating these plates, ensuring they possess the required strength and structural integrity. Furthermore, steel billets are crucial in manufacturing shipbuilding sections and profiles. These sections, including beams, angles, channels, and other structural components, provide support and reinforcement to the ship's structure. Steel billets are heated and shaped through processes like rolling, forging, or extrusion to form these sections. This allows for the creation of custom-shaped sections that seamlessly integrate into the ship's construction. Additionally, steel billets are also used in producing shipbuilding forgings, which are high-strength components requiring exceptional mechanical properties. Forgings are vital for critical ship parts like propeller shafts, rudder components, and engine parts. Steel billets are heated and shaped using forging techniques to create these components, ensuring they possess the necessary strength, toughness, and resistance to fatigue. In conclusion, steel billets are a fundamental raw material extensively used in shipbuilding. They are transformed into various forms such as plates, sections, and forgings, which are then incorporated into the construction of ships. The utilization of steel billets guarantees that shipbuilding materials meet the stringent requirements for strength, durability, and performance in marine environments.
- Q: What are the safety precautions when handling steel billets?
- To minimize the likelihood of accidents and injuries when dealing with steel billets, it is crucial to adhere to various safety measures. Firstly, it is of utmost importance to wear suitable personal protective equipment (PPE) such as safety goggles, steel-toed boots, gloves, and a hard hat. Before commencing the handling of steel billets, it is necessary to ensure that the work area is free from any obstructions or debris that could potentially cause trips or falls. Additionally, it is essential to stack and store the billets correctly to prevent unexpected falls or shifts. When it comes to lifting or moving steel billets, one should exercise caution regarding their weight and size. Utilizing appropriate lifting equipment like cranes, forklifts, or hoists is necessary to avoid strains or musculoskeletal injuries. It is crucial to always adhere to the weight limits and load capacities specified for the equipment being employed. To prevent slippage or falling, it is important to maintain a secure grip on the billets. One should avoid sharp edges or protruding parts that could result in cuts or puncture wounds. If required, the use of protective covers or padding can prevent contact with sharp or jagged edges. Proper communication plays a vital role in the handling of steel billets. It is imperative to establish clear communication among the workers involved in the process to prevent accidents or mishaps. Hand signals or radios can be employed to facilitate effective communication, especially in noisy environments. Regular inspection of the steel billets should be conducted before handling them to identify any defects or damage. Cracks, rust, or any other issues can compromise the structural integrity of the billets and increase the risk of accidents. If any defects are detected, they should be reported to a supervisor, and the appropriate procedures for handling or disposing of the billets should be followed. Lastly, it is crucial to always be aware of one's surroundings and the movements of other workers when handling steel billets. Standing or working in the swing radius of lifting equipment or near moving machinery should be avoided to prevent being struck or crushed. By adhering to these safety precautions, the risk of accidents and injuries during the handling of steel billets can be significantly reduced, thereby creating a safer work environment.
- Q: What are the different types of steel billet surface defects?
- There are several different types of steel billet surface defects that can occur during the manufacturing process. These defects can affect the quality and performance of the steel, and it is important to identify and address them to ensure the integrity of the final product. 1. Scale: Scale is a common defect that occurs as a result of oxidation during the heating and rolling process. It appears as a thin layer of iron oxide on the surface of the billet and can be easily removed through descaling processes. 2. Cracks: Cracks are another common defect that can occur on the surface of steel billets. They can be caused by several factors such as uneven cooling, excessive stress, or improper handling. Cracks can lead to weakened structural integrity and should be repaired or the affected billets discarded. 3. Pitting: Pitting is a defect characterized by small, shallow depressions or pits on the surface of the billet. It can be caused by a variety of factors including impurities in the steel, improper cooling, or corrosion. Pitting can lead to reduced strength and increased susceptibility to corrosion. 4. Lamination: Lamination defects occur when there are layers or separation within the billet caused by poor bonding during the manufacturing process. This defect can compromise the mechanical properties of the steel and may result in failure under stress. 5. Inclusions: Inclusions are non-metallic substances that become trapped within the billet during the manufacturing process. They can include slag, oxides, or other impurities. Inclusions can weaken the steel and reduce its ductility, making it more prone to cracking or breaking. 6. Scratches: Scratches are superficial defects that can occur during handling or transportation of the billets. While they may not greatly affect the overall structural integrity of the steel, they can lead to localized stress concentrations and potential failure in certain applications. 7. Decarburization: Decarburization is a defect that occurs when the surface of the billet loses its carbon content during the heating process. This can lead to reduced hardness and strength in the affected area, affecting the performance of the steel. It is important for manufacturers and inspectors to be aware of these different types of steel billet surface defects to ensure the production of high-quality steel products. Regular inspections, quality control measures, and appropriate corrective actions can help minimize and address these defects to ensure the desired performance and longevity of the steel.
Send your message to us
Steel billet from China for sale in good quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 16542 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
Similar products
Hot products
Hot Searches
Related keywords
