Square Steel Billets hot sale Q275 grade

Square Steel Billets hot sale Q275 grade

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1000 m.t.

Supply Capability:: 15000 m.t./month

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Specification

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

Square Steel Billets hot sale Q275 grade

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 used in the manufacturing of shipbuilding components?: The manufacturing of shipbuilding components relies heavily on steel billets, which are indispensable raw materials. These components, including hulls, decks, bulkheads, and other structural parts, are crucial for ship construction. To begin the process, steel billets are heated in a furnace to a specific temperature, rendering them malleable. This crucial step, known as hot rolling, allows the billets to be shaped into the desired forms and sizes required for shipbuilding components. In addition to shaping, hot rolling also enhances the mechanical properties of the steel, making it stronger and more durable. Once the billets are heated and shaped, they undergo further processing through various techniques such as forging, extrusion, or casting, depending on the specific shipbuilding components needed. For instance, steel billets can be forged to create large and intricate parts like ship propellers or rudders. Extrusion, on the other hand, is employed to form long and continuous shapes like shipbuilding beams or pipes. Casting is utilized for intricate components such as engine parts or valves. Following the initial shaping process, the steel components go through various finishing operations including machining, welding, and surface treatment. Machining ensures the achievement of precise dimensions and smooth surfaces necessary for the proper fitting and functioning of shipbuilding components. Welding is employed to join different steel components together, ensuring structural integrity and strength. Surface treatment techniques such as painting or galvanizing are applied to protect the components from corrosion and extend their lifespan. Overall, steel billets are of utmost importance in shipbuilding as they serve as the essential raw material for manufacturing a wide range of components. Their versatility, strength, and durability make them ideal for constructing ships that can withstand the harsh marine environment. By utilizing steel billets along with advanced manufacturing techniques, high-quality shipbuilding components that adhere to stringent industry standards can be produced.

Q: What are the different methods of hardness testing for steel billets?: There are several different methods of hardness testing for steel billets. Some common methods include Brinell, Rockwell, Vickers, and Knoop hardness tests. Each method involves applying a specific amount of force to the surface of the steel billet and measuring the resulting indentation. These tests help determine the hardness and strength of the steel, which is important for various applications in industries such as construction, automotive, and manufacturing.

Q: How are steel billets used in the manufacturing of aerospace components?: Steel billets serve as a crucial raw material in the production of aerospace components. These semi-finished steel products, shaped like squares or rectangular solids, undergo a series of processes to become the required parts. To begin with, the steel billets go through a heating process called "hot working." This involves subjecting the billets to high temperatures, typically around 1200-1300°C, to increase their malleability and facilitate shaping. The heated billets are then passed through rolling mills, where they gradually decrease in size and take on the desired forms, such as bars, rods, or sheets. Once the steel billets have been shaped accordingly, they undergo further processing techniques like forging, extrusion, or machining to create specific aerospace components. For instance, the billets can be forged or machined to manufacture critical parts like engine shafts, landing gear components, or structural supports. The utilization of steel billets in aerospace manufacturing presents several advantages. Steel is renowned for its high strength, durability, and excellent mechanical properties, making it an ideal material for aerospace applications. Steel components can endure extreme conditions, such as high temperatures and pressures, while resisting corrosion and fatigue, thereby ensuring the safety and reliability of aerospace systems. Furthermore, 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 exhibit specific properties, such as a high strength-to-weight ratio, exceptional heat resistance, or enhanced fatigue life. This customization guarantees that the resulting aerospace components meet the industry's demanding standards. In conclusion, steel billets play a vital role in the production 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 utilization of steel as a material offers exceptional strength, durability, and customization possibilities, thereby ensuring the production of high-quality and reliable aerospace components.

Q: What are the different types of steel alloys used for manufacturing steel billets?: There are various types of steel alloys used for manufacturing steel billets, including carbon steel, alloy steel, and stainless steel. Carbon steel is the most commonly used alloy and is known for its strength and durability. Alloy steel contains additional elements such as nickel, chromium, or manganese, which enhance its properties and make it suitable for specific applications. Stainless steel, on the other hand, is corrosion-resistant and often used in industries requiring high resistance to rust and staining.

Q: What are the potential defects or flaws in steel billets?: There are several potential defects or flaws that can occur in steel billets, which can affect the quality and performance of the final product. Some of these defects include: 1. Surface defects: Steel billets can develop surface cracks, scales, or scratches during the manufacturing process. These defects can weaken the material and reduce its structural integrity. 2. Internal defects: Inclusions, such as non-metallic impurities or gas bubbles, can be present within the steel billets. These internal defects can cause localized weaknesses and reduce the overall strength of the material. 3. Segregation: Uneven distribution of alloying elements or impurities can lead to segregation, where certain areas of the billet have different chemical compositions. Segregation can result in inconsistent mechanical properties across the material and decrease its uniformity. 4. Central segregation: This defect occurs when there is a concentration of impurities or alloying elements in the central region of the billet, leading to a weaker core. Central segregation can cause structural failures and reduce the overall reliability of the steel billet. 5. Shrinkage cavities: During the solidification process, shrinkage cavities can form in the steel billet due to the contraction of the molten metal. These cavities can weaken the material and compromise its structural integrity. 6. Surface decarburization: Exposure to high temperatures or improper heat treatment can cause the surface of the steel billet to lose carbon content, resulting in surface decarburization. This defect can reduce the hardness and strength of the material. 7. Laminations: Laminations are thin, elongated voids or layers that can form parallel to the surface of the billet. These defects can weaken the material and make it prone to cracking or failure under stress. 8. Internal cracks: Internal cracks can occur due to improper cooling or handling of the billet during the manufacturing process. These cracks can compromise the structural integrity of the steel billet and potentially lead to catastrophic failure. It is important to detect and address these defects early on to ensure the quality and reliability of the steel billets. Various non-destructive testing techniques, such as ultrasonic testing or magnetic particle inspection, can be utilized to identify and mitigate these potential flaws.

Q: What is the role of steel billets in the manufacturing of automotive suspension systems?: Steel billets play a crucial role in the manufacturing of automotive suspension systems. Suspension systems are responsible for providing a smooth and comfortable ride while ensuring the vehicle's stability and handling. Steel billets are used as a raw material to fabricate various components of the suspension system, such as control arms, coil springs, sway bars, and stabilizer links. One of the primary requirements of suspension systems is strength and durability. Steel billets, due to their high tensile strength and excellent mechanical properties, are an ideal choice for manufacturing suspension components. These billets are typically made from carbon steel, which offers exceptional strength and can withstand the heavy loads and forces experienced by suspension systems. The process of manufacturing suspension components from steel billets involves several stages. Firstly, the billets are heated to a specific temperature, typically above their recrystallization temperature, to make them more malleable. This allows the material to be easily shaped and formed into the desired component. Once heated, the billets are subjected to various forming processes, such as hot forging, cold forging, or machining, depending on the specific component being manufactured. These processes help shape the billets into control arms, coil springs, or other suspension components with precise dimensions and specifications. The use of steel billets in suspension systems offers several advantages. Firstly, steel is a cost-effective material, making the overall manufacturing process more economical. Additionally, steel provides excellent strength-to-weight ratio, allowing for lighter suspension components without compromising on strength and durability. This, in turn, contributes to improved fuel efficiency and overall vehicle performance. Moreover, steel billets have high resistance to wear, corrosion, and fatigue, ensuring that the suspension components can withstand the harsh operating conditions and last for a long time. They also offer excellent damping characteristics, helping to absorb and dissipate vibrations and shocks, further enhancing the ride comfort and stability of the vehicle. In conclusion, steel billets are essential in the manufacturing of automotive suspension systems. Their strength, durability, and malleability make them an ideal raw material for fabricating various suspension components. By utilizing steel billets, automotive manufacturers can produce suspension systems that provide a smooth ride, stability, and enhanced performance, contributing to overall driver and passenger comfort and safety.

Q: What are the potential applications of steel billets in the transportation industry?: Steel billets have a wide range of potential applications in the transportation industry. They can be used to manufacture various components such as engine parts, chassis, suspension systems, and structural parts for vehicles. Additionally, steel billets can be utilized in the production of railway tracks, shipbuilding, and aerospace applications. Their high strength, durability, and versatility make them a preferred choice for ensuring the safety and reliability of transportation systems.

Q: What industries use steel billets?: Due to their strength, durability, and versatility, steel billets are extensively used in a wide range of industries. The construction industry heavily relies on steel billets for the production of structural components like beams, columns, and girders, which provide vital support and strength in infrastructure projects such as buildings and bridges. In the automotive industry, steel billets are crucial for manufacturing various car parts, including engine components, chassis, and suspension systems. The preference for steel billets in this industry stems from their high strength-to-weight ratio, which enhances fuel efficiency and overall performance. Manufacturing industries like machinery, equipment, and tool production also heavily depend on steel billets. These billets are used to manufacture critical components such as gears, shafts, valves, which require exceptional strength, durability, and precision. Additionally, steel billets play a vital role in the energy sector, particularly in the production of oil and gas pipelines. These pipelines require specific grades of steel billets that can withstand harsh conditions, high pressures, and corrosive environments. Moreover, steel billets have applications in other sectors such as shipbuilding, aerospace, mining, and agriculture. They are widely utilized in any industry where strength, durability, and reliability are paramount. In conclusion, the remarkable mechanical properties of steel billets enable their diverse applications across multiple industries. The demand for steel billets remains strong as they are an indispensable raw material for producing critical components in numerous sectors.

Q: What are the advantages of using steel billets in manufacturing?: Using steel billets in manufacturing processes has numerous benefits. Firstly, they offer exceptional strength and durability, making them ideal for applications that require heavy loads or resistance to wear and tear. This ensures that products made from steel billets are long-lasting and can withstand harsh conditions, reducing the need for frequent replacements. Secondly, steel billets are highly versatile, allowing manufacturers to easily mold and shape them into various forms. This versatility enables the creation of a wide range of products with different designs and specifications, making steel billets suitable for industries such as construction, automotive, machinery, and appliances. Furthermore, steel billets are cost-effective due to the affordability and widespread availability of steel. This ensures a steady supply and reduces production costs. Moreover, steel's durability minimizes maintenance and replacement expenses, resulting in long-term savings. Another advantage of using steel billets is their eco-friendliness. Steel is highly recyclable, promoting sustainability in the manufacturing process. By recycling steel, the need for mining raw materials is reduced, energy is conserved, and carbon emissions are decreased. Therefore, steel billets contribute to a greener manufacturing process and support environmental conservation efforts. Lastly, steel billets offer excellent performance characteristics. They have exceptional thermal and electrical conductivity properties, making them suitable for applications requiring heat dissipation or electrical conduction. Additionally, steel is resistant to corrosion, rust, and fire, providing an extra layer of protection to products manufactured using steel billets. In conclusion, the advantages of using steel billets in manufacturing include their strength and durability, versatility, cost-effectiveness, eco-friendliness, and exceptional performance characteristics. These advantages make steel billets a preferred choice for various industries, ensuring high-quality products that withstand the test of time.

Q: What are the different types of surface treatment defects found in steel billets?: Steel billets may have various types of surface treatment defects that can occur at different stages of the process. These defects can have an impact on the quality and performance of the billets. Below are some common types of surface treatment defects in steel billets: 1. Scale: This defect manifests as an oxide layer on the surface of the billet. It occurs when the steel is exposed to high temperatures during manufacturing, like hot rolling or heat treatment. Scale affects the appearance and surface quality of the billet and may need to be removed before further processing. 2. Pitting: Pitting is another defect characterized by small localized holes or depressions on the billet's surface. It can happen due to corrosion or chemical reactions during the surface treatment process. Pitting reduces the strength and durability of the billet, making it prone to further damage and failure. 3. Decarburization: This defect involves the loss of carbon from the surface layer of the billet. It can occur due to exposure to high temperatures or chemical reactions during manufacturing. Decarburization reduces the hardness and strength of the billet, affecting its overall performance and suitability for specific applications. 4. Staining: Staining refers to discoloration or blemishes on the billet's surface. It can happen due to the presence of foreign substances like rust or contaminants during the surface treatment process. Staining affects the appearance and aesthetics of the billet, but it may not necessarily impact its mechanical properties. 5. Scratches and Abrasions: These physical defects occur during handling, transportation, or processing of the billet. They appear as visible marks or grooves on the surface and can affect the overall quality and appearance of the billet. While scratches and abrasions may not significantly impact the billet's mechanical properties, they compromise its surface integrity and may require further treatment or repair. Identifying and addressing these surface treatment defects in steel billets is crucial to ensure the desired quality and performance of the final product. Implementing proper inspection, monitoring, and control measures during the surface treatment process can help minimize or eliminate these defects, resulting in superior steel billets.

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