Steel Billet from China Alibaba Q215 Q235 Q275
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 17684 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Size:
100mm to 165mm
Length:
6~12meters
Grade:
Q195/Q215/Q235/Q275
Price term:
FOB/CIF/ CFR according to clients requirements
Payment terms:
100%Irrevercable L/C at sight or T/T
Steel billets have distinct characteristics as compared with already furnished steel bars and products. Billets
have a specific grain structure, which enables the metal to be processed more intricately. Steel billets are also
known for their malleability and ductility, especially when exposed to varying temperatures during shaping and
molding.
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.
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: What are the main factors affecting the thermal conductivity of steel billets?
- The thermal conductivity of steel billets is influenced primarily by several factors. Firstly, the chemical composition of the steel plays a crucial role in determining its thermal conductivity. Elements like carbon, manganese, and silicon can impact the crystal structure and atom arrangement within the steel, thereby affecting its ability to conduct heat. Generally, steels with higher carbon content have lower thermal conductivity due to increased impurities and non-conductive carbide formation. Secondly, the microstructure of the steel also affects its thermal conductivity. Heat conduction in steel happens through lattice vibrations called phonons. Grain boundaries, dislocations, and other defects within the microstructure can hinder phonon movement, resulting in reduced thermal conductivity. Conversely, a more uniform and fine-grained microstructure enhances thermal conductivity. Furthermore, the temperature of the steel billet significantly impacts its thermal conductivity. As the temperature rises, the thermal conductivity of steel generally decreases due to increased scattering of phonons by lattice vibrations and higher thermal resistance. Another factor influencing the thermal conductivity of steel billets is their physical dimensions, specifically cross-sectional area and length. A larger cross-sectional area leads to higher thermal conductivity as there is more space for heat transfer. Similarly, longer billets tend to have lower thermal conductivity due to increased distance for heat conduction. Lastly, the presence of impurities and alloying elements in the steel can also affect its thermal conductivity. For instance, alloying elements like nickel, chromium, and copper can alter the crystal structure and lattice vibrations, thereby influencing the thermal conductivity of the steel billet. In conclusion, the thermal conductivity of steel billets is influenced by factors such as chemical composition, microstructure, temperature, physical dimensions, and the presence of impurities and alloying elements. Understanding these factors is crucial in various industrial applications where heat transfer and thermal management are critical.
- Q: How are steel billets used in the manufacturing of forgings?
- The production of forgings relies heavily on steel billets, which are a vital raw material. These semi-finished steel products serve as the starting point for shaping and forming various types of forgings. To begin the process, suitable steel billets are carefully chosen based on their chemical composition and mechanical properties. Typically made from high-quality carbon or alloy steel, these billets undergo thorough inspection to ensure their suitability for the intended end product. Once the appropriate billets are selected, they are subjected to a series of heating and shaping procedures. These billets are heated in a furnace to a specific temperature known as the forging temperature, in order to enhance their malleability. Strict temperature control is exercised to optimize plasticity and minimize potential defects. Once the forging temperature is reached, the billets are transferred to a forging press or hammer. These powerful machines exert immense pressure to mold the billets into the desired form. The force applied causes the billets to deform and conform to the shape of the die or mold being used. To achieve the final desired shape, the forged billet may undergo additional steps such as trimming, piercing, or machining. These procedures are necessary to eliminate any excess material and further refine the forged part. The quality of the steel billets throughout the manufacturing process is of utmost importance, as it directly influences the final quality of the forgings. The billets must possess consistent chemical composition, mechanical properties, and be free from defects. This ensures that the forged parts exhibit the desired strength, durability, and dimensional accuracy. In conclusion, steel billets serve as the initial material in the manufacturing of forgings. Through heating, shaping, and other processes, these billets are transformed into the final forged part. The quality of the billets directly impacts the quality of the forgings, making the selection and inspection of billets a critical step in the overall manufacturing process.
- Q: What are the different types of steel billet shearing techniques?
- There are several types of steel billet shearing techniques, including guillotine shearing, rotary shearing, and flying shear.
- Q: How do steel billets contribute to the manufacturing of electrical appliances?
- Steel billets are used in the manufacturing of electrical appliances as they serve as a raw material for various components. These billets are transformed into sheets, wires, or rods which are then used to create the outer casings, frames, or conductive elements of the appliances. The strength and durability of steel make it an ideal choice for ensuring the longevity and safety of electrical appliances.
- Q: How are steel billets used in the manufacturing of industrial compressors?
- Industrial compressors require steel billets as a crucial part of their manufacturing process. These billets, essentially semi-finished steel products in the shape of a rectangular solid, are the starting material for making different compressor components. To begin with, steel billets are heated to high temperatures and then passed through rolling mills to shape them into specific forms like bars, rods, or sheets. These processed steel billets are then used to fabricate important compressor components such as the crankshaft, connecting rods, cylinder blocks, and piston rings. The crankshaft, which converts the piston's reciprocating motion into rotational motion, is typically forged from a steel billet. The billet undergoes controlled heating, shaping, and machining processes to achieve the desired shape and strength necessary to withstand the high pressures and forces within the compressor. Likewise, connecting rods, responsible for connecting the piston to the crankshaft, are also made from steel billets. These billets are machined precisely and undergo various heat treatment processes to ensure optimal strength and durability. Cylinder blocks, the primary structural frame of the compressor, are often casted from steel billets. The billets are melted and poured into molds to achieve the desired shape. Once solidified, further machining is performed on the cylinder block to create the cylinder bores, mounting surfaces, and other necessary features. Moreover, steel billets are utilized for producing piston rings, which play a crucial role in maintaining proper compression and preventing leakage. The billets are machined and then subjected to heat treatment processes to enhance wear resistance and ensure a precise fit within the cylinder. In summary, steel billets are indispensable in the manufacturing of industrial compressors as they provide the raw material for creating vital components. The ability to shape and process steel billets enables the production of robust, durable, and high-performance compressors capable of meeting the demanding requirements of various industries.
- Q: What is the cost of steel billets?
- The cost of steel billets can vary depending on factors such as market conditions, demand, and the specific type and quality of the billets. It is recommended to consult with a steel supplier or check current market prices for accurate and up-to-date information on the cost of steel billets.
- Q: What are the different types of steel billet rolling defects?
- During the rolling process, various defects can arise in steel billets, which can have adverse effects on the final product's quality and integrity. The most commonly encountered types of steel billet rolling defects are as follows: 1. Surface cracks: These are minute cracks that manifest on the billet's surface. They can result from inadequate cooling or excessive rolling pressure. Surface cracks jeopardize the steel's strength and durability. 2. Center cracks: Inner core cracks occur when temperature control during the rolling process is incorrect. Center cracks can lead to structural weaknesses and reduced steel performance. 3. Scalloping: Scalloping refers to the formation of shallow depressions or grooves on the billet's surface. It usually arises due to uneven or improper rolling pressure distribution. Scalloping negatively impacts the steel's appearance and surface quality. 4. Lamination: Lamination defects involve the separation of layers within the billet. They can be caused by the presence of impurities or inclusions in the steel, as well as inadequate heating or rolling conditions. Lamination defects weaken the steel and increase the risk of failure. 5. Wavy edges: Wavy edges occur when the billet's edges become uneven or distorted during rolling. This can be the result of improper alignment or uneven pressure distribution. Wavy edges affect the steel's dimensional accuracy and overall quality. 6. Surface defects: Surface defects encompass scratches, pits, or other imperfections on the billet's surface. They may occur due to insufficient cleaning or handling procedures, as well as improper rolling conditions. Surface defects impact the steel's appearance and surface quality. In conclusion, these steel billet rolling defects hold significant implications for the final product's quality, performance, and safety. Manufacturers must closely monitor the rolling process and implement appropriate quality control measures to minimize the occurrence of these defects.
- Q: Can steel billets be used in the production of bicycles?
- Yes, steel billets can be used in the production of bicycles. Steel is a commonly used material in bicycle manufacturing due to its strength, durability, and affordability. Steel billets can be shaped and manipulated to form various bicycle components such as frames, forks, and handlebars.
- Q: How are steel billets used in the manufacturing of pumps and compressors?
- Pumps and compressors rely heavily on steel billets, a crucial raw material for their manufacturing process. These semi-finished steel forms are transformed into different components and parts of these devices. To prepare steel billets for shaping, the initial step involves heating them to a high temperature to make them malleable. Once heated, the billets go through various metalworking techniques like forging, rolling, or extrusion. By subjecting them to these processes, the billets are converted into the desired shapes and sizes required for specific pump and compressor components. In pump manufacturing, steel billets are utilized to fabricate impellers, responsible for fluid movement and circulation. The billets are shaped according to the impeller design through machining or casting procedures. Similarly, for compressors, steel billets are used to create vital components like cylinders, pistons, and connecting rods, which facilitate gas compression and movement. The preference for steel billets in pump and compressor manufacturing stems from their advantageous properties, such as strength, durability, and corrosion resistance. These properties are vital for ensuring the efficiency and longevity of these mechanical devices, especially when they operate under high pressures, temperatures, and harsh working conditions. In conclusion, steel billets play a fundamental role in the manufacturing process of pumps and compressors. They provide the necessary raw material for shaping and creating various components that enable these devices to function effectively.
- Q: What are the common heat treatment processes for steel billets?
- Steel billets can undergo several heat treatment processes to modify their mechanical properties, including hardness, strength, and toughness, to meet specific requirements for different applications. One prevalent heat treatment process for steel billets is annealing. This involves heating the steel to a specific temperature and maintaining it at that temperature for a set duration, followed by gradual cooling. Annealing helps alleviate internal stresses in the steel, improve its machinability, and enhance its ductility. Another widely used heat treatment process for steel billets is quenching and tempering. Quenching involves rapidly cooling the steel from a high temperature to room temperature using a liquid or gas medium, like water or oil. This process results in hardened steel with increased strength and hardness. However, the steel becomes brittle after quenching, so it is then tempered by reheating it to a lower temperature and holding it at that temperature for a specific time period. Tempering reduces brittleness and improves the toughness and ductility of the steel. Normalizing is another heat treatment process employed for steel billets. It entails heating the steel to a temperature above its critical transformation temperature and then cooling it in still air. Normalizing helps refine the grain structure of the steel, improve its mechanical properties, and enhance its machinability. Lastly, stress relieving is a process used to reduce internal stresses in steel billets that may have been generated during manufacturing processes such as casting or forging. Stress relieving involves heating the steel to a specific temperature and maintaining it at that temperature for a certain duration, followed by gradual cooling. This process aids in improving dimensional stability and reducing the risk of distortion or cracking in the steel. Overall, these common heat treatment processes for steel billets play a vital role in optimizing the properties and performance of steel for various industrial applications, including automotive, construction, aerospace, and energy sectors.
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Steel Billet from China Alibaba Q215 Q235 Q275
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 17684 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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