Square Steel Billets hot sale Q275 grade
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 15000 m.t./month
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Item specifice
Size:
100mm to 165mm
Grade:
Grade: Q195/Q215/Q235/Q275
Length:
6~12meters
Steel billet
(ingot) by cogging or breakdown of semifinished products, is the raw material of all kinds of steel mill.
Billet section of square, round, flat, rectangular and abnormity of several kinds of, mainly related to the
shape of rolled products.
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 |
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 are steel billets heat-treated?
- Steel billets undergo heat treatment through either annealing or quenching and tempering processes. In annealing, the steel billets are heated to a specific temperature and gradually cooled, which relieves internal stresses and enhances the steel's ductility and toughness. Conversely, quenching and tempering involves heating the billets to a high temperature and quickly cooling them in a quenching medium, such as water or oil. This rapid cooling creates a hard and brittle structure in the steel, which is then tempered by reheating the billets to a lower temperature. This tempering process reduces brittleness and increases toughness. The choice of heat treatment process depends on the desired properties and applications of the steel billets.
- Q:What are the environmental impacts of producing steel billets?
- The production of steel billets has several environmental impacts. One significant impact is the emission of greenhouse gases, particularly carbon dioxide, during the steelmaking process. This contributes to climate change and global warming. Additionally, the extraction of raw materials for steel production can lead to deforestation, habitat destruction, and soil erosion. Steel production also consumes large amounts of energy and water, which can strain natural resources and contribute to pollution. Proper management of these impacts, such as adopting more sustainable production methods and recycling, can help mitigate the environmental effects of steel billet production.
- Q:How are steel billets used in the production of marine vessels?
- Steel billets are used in the production of marine vessels as they serve as the raw material for various components and structures. These billets are typically shaped and processed to create different parts such as hulls, frames, decks, and superstructures. By being molded and welded together, steel billets provide the necessary strength, durability, and structural integrity required for marine vessels to withstand the harsh conditions of the sea.
- Q:Can steel billets be recycled?
- Yes, steel billets can be recycled. Steel is a highly recyclable material, and the recycling process involves melting down the steel billets to create new steel products, reducing the need for raw materials and conserving energy.
- Q:What is the process of heat treatment for steel billets?
- The process of heat treatment for steel billets involves subjecting the billets to controlled heating and cooling cycles to alter their mechanical properties. This process is essential in increasing the hardness, strength, and toughness of the steel billets, making them suitable for various industrial applications. The heat treatment process begins with the heating stage, where the steel billets are heated to a specific temperature range. This temperature is typically above the critical point of the steel, which allows for the transformation of its microstructure. The heating can be done using various methods, including electric furnaces, gas furnaces, or induction heating. Once the desired temperature is reached, the billets are held at that temperature for a specified amount of time to ensure the uniformity of the heat distribution throughout the billet. This stage is known as soaking or holding, and it allows for the homogenization of the microstructure. After the soaking stage, the billets are subjected to cooling, which is equally important as the heating stage. The cooling rate is carefully controlled to achieve the desired properties. The cooling can be done through various methods, such as air cooling, oil quenching, or water quenching. Each method provides different cooling rates and results in different material properties. During the cooling stage, the steel undergoes a phase transformation, which results in the formation of different microstructures. For example, rapid cooling through water quenching can lead to the formation of martensite, a hard and brittle microstructure, while slower cooling can result in the formation of pearlite, a softer and ductile microstructure. Once the cooling is complete, the steel billets are often subjected to additional processes such as tempering or annealing. Tempering involves reheating the steel to a specific temperature and holding it there for a certain period, followed by controlled cooling. This process reduces the brittleness of the steel and improves its toughness and ductility. Annealing is another heat treatment process that involves heating the steel to a specific temperature and then slowly cooling it. This process is used to relieve internal stresses, refine the grain structure, and enhance the machinability of the steel. Overall, the process of heat treatment for steel billets involves carefully controlled heating, soaking, cooling, and sometimes additional processes to achieve the desired mechanical properties. This process is crucial in enhancing the performance and durability of steel billets, making them suitable for various industrial applications such as construction, automotive, and machinery.
- Q:How are steel billets unloaded at the destination?
- Steel billets are typically unloaded at the destination using heavy machinery such as cranes or forklifts. These machines carefully lift and transport the steel billets from the transport vehicle to the designated storage area.
- Q:Can steel billets be used in the manufacturing of machinery?
- Yes, steel billets can be used in the manufacturing of machinery. Steel billets are semi-finished metal products that are typically hot rolled or forged into various shapes, including bars, rods, or sheets. These billets serve as the raw material for manufacturing machinery components such as gears, shafts, bearings, and structural frames. The use of steel billets in machinery manufacturing offers several advantages. Steel is known for its exceptional strength, durability, and resistance to wear, making it a suitable material choice for heavy-duty applications. Additionally, steel can be easily machined, welded, and formed into complex shapes, allowing for the production of intricate machinery parts. Moreover, steel's high melting point and thermal conductivity make it ideal for applications that involve high temperatures or require heat transfer. Overall, steel billets are widely used in machinery manufacturing due to their excellent mechanical properties, versatility, and reliability.
- Q:What is the cost of steel billets?
- The cost of steel billets can vary depending on various factors such as the current market conditions, demand and supply dynamics, quality and specifications of the billets, and the location of purchase. Steel billet prices are typically quoted in metric tons or short tons. It is advisable to consult steel industry reports, market analysis, or reach out to steel suppliers or distributors for the most accurate and up-to-date pricing information.
- Q:How are steel billets tested for strength?
- To ensure the quality and appropriateness of steel billets for different uses, they undergo various strength tests. One commonly employed method is the tensile strength test, which involves applying a controlled pulling force to a sample of the billet until it breaks. The maximum force exerted during this test determines the billet's tensile strength. Another crucial test is the hardness test, which evaluates the billet's resistance to indentation. This procedure utilizes a hardness tester that applies a known force to the billet's surface and measures the resulting indentation's depth. The hardness value obtained from this test aids in determining the billet's strength and its ability to endure wear and tear. Additionally, steel billets may also undergo impact testing, in which a pendulum strikes the billet, measuring the energy absorbed during fracture. This test assesses the billet's toughness and its capacity to withstand sudden shocks or impacts. Moreover, ultrasonic testing is frequently conducted to identify any hidden flaws or inconsistencies within the billet. This non-destructive testing method employs high-frequency sound waves to detect internal defects like cracks, voids, or inclusions that may weaken the billet and jeopardize its strength. By combining these tests with other quality control measures, steel billets are thoroughly examined for strength and suitability in various industrial applications, including construction, automotive, and manufacturing.
- Q:What is the role of steel billets in the construction of airports and terminals?
- Steel billets play a crucial role in the construction of airports and terminals as they serve as the raw material for manufacturing various structural components. These billets are used to create beams, columns, and other load-bearing elements, providing the necessary strength and durability to support the heavy infrastructure of airports and terminals. Additionally, steel billets are also utilized in the construction of runways, hangars, and other facilities, ensuring the safety and stability of these vital structures.
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Square Steel Billets hot sale Q275 grade
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 15000 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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