Square steel billets 150*150 from China market
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 31842 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Credit Rating, Credit Services, Credit Purchasing
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Item specifice
Grade:
Q195/Q215/Q235/Q275
Size:
100mm to 165mm
Length:
6~12meters
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.
Used for the plant, the bridge,shipment building high-rise building construction,lifting and transportation machinery, equipment manufracturing base building
the support foundation pile manufacturing.
Qaulity:own factory, stable quality
Tolerance: Strictly according to the G/B and JIS standard
Delivery time: within 45 days after receiving the L/C or advanced T/T payment.
Price term: FOB/CIF/ CFR according to clients requirements
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 |
Our service :
We have a plant and professional team to provide our best service, from the start of production until the
loading into the vessel, we have a complete quality follow up procedure, to assure our products arrives to the customer with satisfaction. Welcome new and old customers
to contact us for future business relationships! We will give you a surpise price.
Packing :
Within 30 days
1.Standard export package
2.In bundles with steel strips
3.As the requirements of the customers
FAQ:
Q: What is payment terms?
A: FOB 30% T/T IN ADVANCE AS DEPOSIT AND 70% T/T BEFORE SHIPMENT
CIF and CFR 30% T/T IN ADVANCE AS DEPOSIT AND 70% T/T AS THE COPY OF B/L OR L/C AT SIGHT
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 is the surface condition of steel billets checked?
- The surface condition of steel billets is typically checked through visual inspection and various non-destructive testing methods. Visual inspection involves thoroughly examining the surface of the billets for any visible defects such as cracks, pits, dents, or scratches. This is usually done by trained inspectors who have a keen eye for detecting surface imperfections. In addition to visual inspection, various non-destructive testing techniques are employed to assess the surface condition of steel billets. These techniques include magnetic particle testing, liquid penetrant testing, ultrasonic testing, and eddy current testing. Magnetic particle testing involves applying a magnetic field to the billet's surface and then applying fine iron particles. If there are any surface defects, such as cracks or inclusions, the magnetic particles will be attracted to these areas and form visible indications. Liquid penetrant testing involves applying a liquid dye to the surface of the billet. The dye penetrates any surface defects, and after a certain period of time, excess dye is removed, and a developer is applied. The developer draws out the dye from any surface defects, making them visible and easy to detect. Ultrasonic testing utilizes high-frequency sound waves to detect surface and subsurface defects. A transducer is used to generate sound waves that penetrate the billet's surface. If there are any defects, such as cracks or voids, the sound waves will reflect back, and by analyzing the reflected waves, any surface or subsurface flaws can be identified. Eddy current testing involves passing an alternating current through a coil placed near the billet's surface. Any surface defects or variations in the material's conductivity will cause changes in the current flow, which can be detected and analyzed to determine the surface condition. These non-destructive testing methods provide accurate and reliable information about the surface condition of steel billets, helping to ensure their quality and integrity before further processing or usage.
- Q:How are steel billets used in the manufacturing of aerospace components?
- Steel billets are used in the manufacturing of aerospace components as they provide a crucial starting material for the production of various parts. These billets, which are essentially semi-finished steel products in the shape of a square or rectangular solid, undergo a series of processes to transform them into the required aerospace components. Firstly, steel billets are subjected to a heating process known as "hot working." This involves heating the billets to high temperatures, typically around 1200-1300°C, to make them more malleable and easier to shape. The heated billets are then passed through a series of rolling mills, where they are gradually reduced in size and shaped into the desired forms, such as bars, rods, or sheets. Once the steel billets are transformed into the desired shapes, they are further processed through various techniques like forging, extrusion, or machining to create specific aerospace components. For example, the billets can be forged or machined to produce critical parts like engine shafts, landing gear components, or structural supports. The use of steel billets in aerospace manufacturing offers several advantages. Steel is known for its high strength, durability, and excellent mechanical properties, making it an ideal material for aerospace applications. Steel components can withstand extreme conditions, such as high temperatures and pressures, as well as resist corrosion and fatigue, ensuring the safety and reliability of aerospace systems. Moreover, steel billets can be customized to meet the stringent requirements of aerospace components. By carefully controlling the composition, heat treatment, and manufacturing processes, steel billets can be tailored to provide specific properties, such as high strength-to-weight ratio, excellent heat resistance, or improved fatigue life. This customization ensures that the resulting aerospace components meet the demanding standards of the industry. In conclusion, steel billets play a vital role in the manufacturing of aerospace components. Through a series of heating, shaping, and processing techniques, steel billets are transformed into various forms that are then further processed to create critical aerospace parts. The use of steel as a material offers exceptional strength, durability, and customization possibilities, ensuring the production of high-quality and reliable aerospace components.
- Q:What are the common alloys used in the production of steel billets?
- The common alloys used in the production of steel billets are primarily carbon and manganese. Carbon is added to increase the hardness and strength of the steel, while manganese is added to improve the steel's toughness and hardenability. Additionally, other alloying elements such as silicon, nickel, chromium, and vanadium may be added in smaller amounts to further enhance specific properties of the steel, such as corrosion resistance, heat resistance, or wear resistance. These alloying elements help create a wide range of steel grades with varying characteristics that can be tailored to suit different applications and industries.
- Q:What are the different types of steel billet surface defects?
- During the manufacturing process, various steel billet surface defects may arise. These defects have the potential to impact the steel's quality and performance, thus necessitating their identification and resolution to safeguard the final product's integrity. 1. Scale: Oxidation during heating and rolling gives rise to a widespread defect known as scale. This defect manifests as a thin layer of iron oxide on the billet's surface, which can be readily eliminated through descaling procedures. 2. Cracks: Another common defect is cracks, which can emerge on the billet's surface. These cracks can be caused by factors such as uneven cooling, excessive stress, or improper handling. Due to their ability to compromise structural integrity, cracked billets necessitate repair or disposal. 3. Pitting: Pitting is characterized by shallow depressions or pits on the billet's surface. It can arise due to impurities in the steel, inadequate cooling, or corrosion. Pitting diminishes strength and heightens susceptibility to corrosion. 4. Lamination: Lamination defects occur when the billet experiences poor bonding during manufacturing, leading to the presence of layers or separation. This defect undermines the steel's mechanical properties, potentially resulting in failure under stress. 5. Inclusions: Non-metallic substances, such as slag, oxides, or other impurities, can become trapped within the billet during manufacturing, causing inclusions. Inclusions weaken the steel and decrease its ductility, rendering it more prone to cracking or breaking. 6. Scratches: Superficial defects like scratches may arise during billet handling or transportation. While they may not significantly impact overall structural integrity, they can concentrate stress in localized areas, potentially leading to failure in specific applications. 7. Decarburization: Decarburization occurs when the billet's surface loses its carbon content during the heating process. This defect reduces hardness and strength in the affected region, impacting the steel's performance. Manufacturers and inspectors must possess knowledge of these various steel billet surface defects to ensure the production of high-quality steel products. Regular inspections, quality control measures, and appropriate corrective actions are vital in minimizing and addressing these defects, thereby guaranteeing the desired steel performance and longevity.
- Q:What are the causes of internal cracks in continuous casting billet?
- The test according to the process of the sample for cooling, in order to study the effects of the three elements of the internal crack of continuous casting billet hot.
- Q:What is the average weight of a steel billet?
- The average weight of a steel billet varies depending on its dimensions and specific grade. However, a typical range for the average weight of a steel billet is between 1,000 and 5,000 pounds.
- 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 cost of steel billets?
- The price of steel billets can fluctuate based on several factors, including the prevailing market conditions, the dynamics of supply and demand, the quality and specifications of the billets, as well as the purchasing location. Usually, steel billet prices are specified in metric tons or short tons. To obtain the most precise and current pricing information, it is recommended to refer to steel industry reports, market analysis, or contact steel suppliers or distributors.
- Q:How are steel billets inspected for surface cleanliness?
- Steel billets are inspected for surface cleanliness through a series of visual and nondestructive testing methods. One of the commonly used techniques is visual inspection, where trained inspectors visually examine the surface of the billets for any visible impurities, such as scale, rust, dirt, or any other contaminants. This method helps identify any surface irregularities that may affect the quality of the billets. Additionally, nondestructive testing methods like magnetic particle inspection (MPI) and ultrasonic testing (UT) are employed to further evaluate the surface cleanliness of steel billets. Magnetic particle inspection involves applying a magnetic field to the billet's surface and then applying iron particles to it. If any surface cracks or defects are present, the iron particles will be attracted to these areas, making them visible to the inspector. Ultrasonic testing, on the other hand, uses high-frequency sound waves to detect any internal or surface defects. A probe is placed on the billet's surface, and sound waves are transmitted into the material. These waves are then reflected back to the probe and analyzed to identify any defects, such as inclusions or voids, which may affect the surface cleanliness. Overall, a combination of visual inspection, magnetic particle inspection, and ultrasonic testing is used to ensure that steel billets meet the required surface cleanliness standards. These inspection methods help identify any impurities or defects that could potentially compromise the quality and performance of the final steel product.
- Q:How are steel billets used in the production of forgings?
- Steel billets are an essential component in the production of forgings. They serve as the initial raw material that undergoes a series of processes to transform into the desired forged product. Firstly, the steel billets are heated to a specific temperature to make them more malleable and easier to work with. This process is known as preheating and is crucial as it allows for easier shaping and deformation during the forging process. Next, the heated steel billets are placed into a forging press or hammer, where they are subjected to immense pressure and force. This pressure causes the billets to deform and take on the desired shape. The forging press applies compressive forces to the billets, while the hammer strikes them repeatedly to achieve the desired shape. During the forging process, the steel billets undergo plastic deformation, meaning they change shape without breaking. This deformation allows for the elimination of any internal defects or inconsistencies within the billet, resulting in a stronger and more reliable final forged product. Once the desired shape is achieved, the forged product is cooled down, either through air cooling or quenching, to stabilize its structure and enhance its mechanical properties. This cooling process helps to increase the strength and hardness of the forged product. In summary, steel billets play a crucial role in the production of forgings. They are heated, shaped under immense pressure, and then cooled to create the final forged product. The use of steel billets in the forging process enables the production of durable, high-quality forged products with superior strength and reliability.
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Square steel billets 150*150 from China market
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 31842 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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