Prime quality prepainted galvanized steel 635mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 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
Construction building material galvanized color prepainted cold
rolled steel coil
Prepainted steel sheet is coated with organic layer, which provides higher anti-corrosion property and
a longer lifespan than that of galvanized steel sheets.
The base metals for prepainted steel sheet consist of cold-rolled, HDG electro-galvanized and hot-dip
Alu-zinc coated. The finish coats of prepainted steel sheets can be classified into groups as follows:
polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc
Standard and Grade :
Pre-paint galvanized steel coil | ||||
ASTM A755M-03 | EN10169:2006 | JISG 3312-2012 | ||
Commercial quality | CS | DX51D+Z | CGCC | |
Structure steel | SS GRADE 230 | S220GD+Z | CGC340 | |
SS GRADE 255 | S250GD+Z | CGC400 | ||
SS GRADE 275 | S280GD+Z | CGC440 | ||
SS GRADE 340 | S320GD+Z | CGC490 | ||
SS GRADE550 | S350GD+Z | CGC570 | ||
S550GD+Z | ||||
Application:
Outdoor | Roof, roof structure, surface sheet of balcony, frame of window, door of garage, rolled shutter door, booth, Persian blinds, cabana, etc |
Indoor | Door, isolater, frame of door, light steel structure of house, home electronic appliances, ect. |
- Q: Can steel billets be used for decorative purposes?
- Yes, steel billets can be used for decorative purposes. They can be shaped, polished, and finished to create aesthetically pleasing decorative items such as sculptures, architectural elements, and ornamental pieces.
- Q: What are the main factors that influence the strength of steel billets?
- The main factors that influence the strength of steel billets are the chemical composition, heat treatment, and microstructure of the steel. The chemical composition of steel billets plays a significant role in determining their strength. The presence of alloying elements such as carbon, manganese, silicon, and chromium can enhance the strength of steel by forming solid solutions or precipitates that increase the hardness and tensile strength of the material. Additionally, controlling the impurity levels and ensuring the desired balance of alloying elements is crucial in achieving the desired strength properties. Heat treatment is another crucial factor that influences the strength of steel billets. The heat treatment process involves heating the steel to a specific temperature, followed by cooling at a controlled rate. This process can significantly affect the microstructure of the steel, which in turn impacts its strength. For instance, quenching and tempering can result in the formation of a desired microstructure, such as martensite or bainite, which enhances the strength and toughness of the steel. The microstructure of steel billets is a key factor in determining their strength. The arrangement of the crystal grains and the presence of various phases within the steel can greatly influence its mechanical properties. Fine-grained structures generally exhibit higher strength due to a greater number of grain boundaries, which inhibit dislocation movement and enhance strength. Additionally, the presence of specific microstructural features, such as precipitates or second-phase particles, can also contribute to the strength of steel billets. Furthermore, factors such as the manufacturing process, cooling rate during solidification, and mechanical working (such as rolling or extrusion) can affect the strength of steel billets. These factors influence the grain size, grain boundary density, and defect concentration, all of which impact the mechanical properties of the steel. In summary, the strength of steel billets is influenced by the chemical composition, heat treatment, and microstructure of the steel. These factors can be carefully controlled and optimized to achieve the desired strength properties for various applications.
- Q: What are the challenges faced by the steel billet industry?
- The steel billet industry faces several challenges, including fluctuating raw material costs, intense competition from alternative materials, and the need for continuous technological advancements to remain efficient and sustainable. Additionally, market demand volatility, trade barriers, and regulatory compliance are significant challenges that impact the industry's growth and profitability.
- Q: What are the different types of steel billet reheating furnaces?
- There are several different types of steel billet reheating furnaces used in the metal industry. These furnaces are designed to heat steel billets to a specific temperature before they are further processed or shaped into various end products. The main types of steel billet reheating furnaces include: 1. Pusher Type Furnace: This type of furnace uses a pusher mechanism to move the billets through the furnace. The billets are loaded onto a roller conveyor and pushed into the furnace using mechanical pusher plates. As the billets move through the furnace, they are heated by the combustion gases or electrical heating elements. 2. Walking Beam Furnace: In a walking beam furnace, the billets are placed on a series of moving beams or skids. These beams move in a continuous loop, carrying the billets through the furnace. As the billets move, they are heated by the burners or electrical heating elements located above and below the beams. 3. Rotary Hearth Furnace: This type of furnace consists of a rotating hearth on which the billets are placed. The hearth rotates, bringing the billets through different temperature zones within the furnace. The billets are heated by the burners or electrical heating elements located above the hearth. 4. Continuous Furnace: A continuous furnace is a type of furnace where the billets are continuously fed into one end and discharged from the other end. The billets move through the furnace on a conveyor belt or roller conveyor, being heated by the combustion gases or electrical heating elements as they pass through. 5. Walking Hearth Furnace: In a walking hearth furnace, the billets are placed on a hearth that moves in a reciprocating motion. The hearth moves back and forth, bringing the billets through the furnace. The billets are heated by the burners or electrical heating elements located above and below the hearth. Each type of steel billet reheating furnace has its own advantages and is suitable for specific applications. The choice of furnace depends on factors such as the required heating capacity, the size and shape of the billets, the desired temperature profile, and the energy efficiency requirements.
- Q: What are the main factors affecting the surface quality of steel billets?
- Several factors influence the surface quality of steel billets. Firstly, the cleanliness of the steel is crucial. Impurities like oxides, scale, and inclusions can negatively impact the surface, causing defects such as pits, cracks, and roughness. Secondly, the temperature during the steelmaking process is important. Overheating can result in excessive scaling and oxidation, leading to a poor surface finish. Insufficient heating, on the other hand, can cause a non-uniform surface and inconsistent mechanical properties. Residual stresses also affect the surface quality. Uneven cooling or improper heat treatment can result in surface cracks, warping, or distortion. Surface treatment processes and their effectiveness also impact the surface quality. Grinding, polishing, or shot blasting can improve the surface finish by eliminating defects and creating a smoother surface. The quality of equipment and tools used in steel production plays a significant role as well. Worn-out or poorly maintained machinery can cause surface defects, inadequate surface preparation, or improper handling, thus affecting the final surface quality. Lastly, the composition and microstructure of the steel itself influence the surface quality. Variations in alloying elements, grain size, and phase distribution can affect the surface finish, hardness, and overall quality of the billets. In conclusion, cleanliness, temperature control, residual stresses, surface treatment processes, equipment quality, and steel composition are the main factors that affect the surface quality of steel billets. Proper steelmaking practices, surface treatments, and quality control measures are crucial in achieving high-quality steel billets with superior surface finish.
- Q: What are the different surface treatments applied to steel billets?
- There are several different surface treatments that can be applied to steel billets, depending on the desired end result and application. Some of the common surface treatments for steel billets include: 1. Shot Blasting: This process involves propelling small metal or mineral particles at high speed onto the surface of the steel billets. Shot blasting helps to remove any surface impurities, such as rust or scale, resulting in a clean and uniform surface. 2. Pickling: Pickling is a chemical treatment that involves immersing the steel billets in an acid solution, typically hydrochloric or sulfuric acid. This process helps to remove any oxide layers or scale from the surface of the billets, resulting in a clean and smooth surface. 3. Phosphating: Phosphating is a chemical conversion coating process that involves immersing the steel billets in a solution containing phosphate salts. This treatment helps to create a thin, adherent, and corrosion-resistant phosphate film on the surface of the billets. 4. Galvanizing: Galvanizing is a popular surface treatment for steel billets that involves coating them with a layer of zinc. This process helps to provide excellent corrosion protection and enhances the overall durability of the steel billets. 5. Painting: Painting is another common surface treatment for steel billets, where a layer of paint is applied to the surface. This can provide both aesthetic appeal and additional protection against corrosion. 6. Electroplating: Electroplating is a process where a thin layer of metal, such as chromium or nickel, is deposited onto the surface of the steel billets using an electrical current. This treatment can enhance the appearance, corrosion resistance, and wear resistance of the steel billets. It is important to note that the choice of surface treatment for steel billets depends on various factors, including the intended use, environmental conditions, and cost considerations. Each treatment offers specific advantages and it is crucial to select the most suitable option to ensure optimal performance and longevity of the steel billets.
- Q: What are the different methods used for heating steel billets?
- There are several different methods used for heating steel billets, depending on the specific requirements and constraints of the application. Some of the common methods include: 1. Induction Heating: This method uses electromagnetic induction to heat the steel billets. An alternating current is passed through a coil, creating a magnetic field that induces electrical currents in the billet, generating heat. Induction heating provides precise and controllable heating, allowing for uniform heating throughout the billet. 2. Gas Furnaces: Gas furnaces utilize burners to generate heat, which is then transferred to the steel billets through convection. Natural gas or propane is commonly used as the fuel source. Gas furnaces offer flexibility in terms of temperature control, heating rate, and energy efficiency. 3. Electric Resistance Heating: In this method, electric current is passed through resistive elements, such as heating elements or heating pads, that are in direct contact with the steel billets. The resistance to the electric current generates heat, which is transferred to the billets. Electric resistance heating is commonly used for smaller-scale operations or applications with specific heating requirements. 4. Flame Heating: Flame heating involves the use of an open flame, typically generated by a gas burner, to heat the steel billets. The billets are heated by the radiant heat emitted from the flame. Flame heating is often used for larger billets or in applications where rapid heating is required. 5. High-Frequency Heating: High-frequency heating utilizes electromagnetic fields to heat the billets. The billets are placed inside a coil, and a high-frequency alternating current is passed through the coil, inducing electrical currents in the billets. The resistance to the electrical currents generates heat, resulting in rapid and uniform heating. 6. Laser Heating: Laser heating involves the use of high-powered lasers to heat the steel billets. The laser beam is focused on the surface of the billet, generating intense heat through the absorption of the laser energy. Laser heating offers precise and localized heating, making it suitable for specific applications or for heat treating small areas of the billets. These are just a few of the methods commonly used for heating steel billets. The choice of method depends on factors such as the required heating rate, temperature control, energy efficiency, and the specific characteristics of the billets being heated.
- Q: What are the main factors affecting the creep resistance of steel billets?
- The creep resistance of steel billets is determined by several main factors, including temperature, stress level, and alloy composition. Temperature plays a crucial role in determining the material's resistance to creep deformation. As the temperature increases, the atomic diffusion becomes more active, leading to enhanced creep deformation. Higher temperatures can also result in the formation of voids and cracks, weakening the billet's resistance to creep. The stress level applied to the steel billet also significantly affects its creep resistance. Higher stresses promote dislocation movement within the crystal lattice, increasing the rate of creep. Additionally, stress concentration at defects like voids or impurities can accelerate creep deformation. Therefore, it is crucial to control the stress level to maintain the billet's creep resistance. The alloy composition of the steel billet is another critical factor that influences its creep resistance. Different alloying elements can alter the material's microstructure, impacting its creep properties. For example, elements like chromium, molybdenum, and vanadium can form stable carbides that hinder dislocation movement and improve creep resistance. On the other hand, elements like sulfur or phosphorus can promote grain boundary sliding and reduce creep resistance. To enhance the creep resistance of steel billets, manufacturers must carefully control temperature, stress level, and alloy composition. By doing so, they can ensure that the billets are suitable for various applications.
- Q: What industries rely heavily on steel billets?
- The industries that heavily rely on steel billets include construction, automotive, aerospace, and manufacturing.
- Q: What are the different methods of steel billet cutting?
- There are several different methods of steel billet cutting, each with its own advantages and applications. Some of the most common methods include: 1. Sawing: Sawing is a traditional method of cutting steel billets using a saw blade. It can be done manually or with the help of a machine. Sawing is a versatile method that can be used for cutting various sizes and shapes of billets, but it may not be suitable for cutting thicker billets. 2. Flame cutting: Flame cutting, also known as oxy-fuel cutting, involves using a torch to heat the steel billet to its ignition temperature and then introducing a stream of oxygen to create a chemical reaction that cuts through the metal. This method is commonly used for cutting thicker billets and can be used for both straight cuts and beveled cuts. 3. Plasma cutting: Plasma cutting is a process that uses a high-velocity jet of ionized gas to melt and remove the steel. It is a versatile method that can be used for cutting various thicknesses of steel billets and can produce high-quality cuts with minimal heat-affected zones. 4. Water jet cutting: Water jet cutting utilizes a high-pressure stream of water mixed with abrasive particles to cut through the steel billet. This method is ideal for cutting complex shapes and can produce precise cuts with minimal heat-affected zones. Water jet cutting is also suitable for cutting a wide range of materials, including metals, plastics, and composites. 5. Laser cutting: Laser cutting uses a focused laser beam to melt and vaporize the steel billet, creating a narrow cut. This method is highly precise and can produce intricate cuts with minimal heat-affected zones. Laser cutting is commonly used for cutting thin to medium thickness billets and is especially popular in industries that require high precision and speed. In summary, the different methods of steel billet cutting include sawing, flame cutting, plasma cutting, water jet cutting, and laser cutting. Each method has its own strengths and is suitable for different applications based on factors such as billet thickness, desired precision, and type of material being cut.
Send your message to us
Prime quality prepainted galvanized steel 635mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 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
