Prime quality square alloy steel billet 145mm Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
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Structure of Prime quality square alloy steel billet 145mm Q235
Description of Prime quality square alloy steel billet 145mm Q235
1. Prepainted steel coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized or galvalume steel sheets.
2. The base metals for prepainted steel coil consist of cold rolled, HDGI Steel, electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of prepainted steel coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.
3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.
4. The color of the prepainted steel coil has a very wide selection, like orange, cream-colored, dark sky blue, sea blue, bright red, brick red, ivory white, porcelain blue, etc.
5. The prepainted steel coils can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.
Main Feature of Prime quality square alloy steel billet 145mm Q235
Uncoated CR steel sheet
With the features of in line with the international highest standards in demension and shape, excellent surface finish and properties, the products are mainly used in home appliance and automobile industries.
Galvanized steel sheet(include HDG and EG)
With the features of good corrosion resistance, the products are mainly used in automobile, home appliance, electronics, building and machinery manufacture industries, etc.
Precoated steel sheet
With the features of enviromental protection and good processablility, long lasting surface durability, rich in colors, the products are maily used in building, home appliance and furniture industries, etc.
Applications of Prime quality square alloy steel billet 145mm Q235
Construction
Manufacture anticorrosion, industrial and civil architecture roof boarding, roof grille
Light industries
Home appliance's case, civil chimney, kitchen utensils
Auto industry
Corrosion resistant parts of cars
Agriculture
Food storage, meat and aquatic products' freezing and processing equipment
Commerce
Equipments to store and transport materials, and packing implements
Specifications of Prime quality square alloy steel billet 145mm Q235
Product | Prime quality square alloy steel billet 145mm Q235 |
Material Grade | SGCC / SGCH / DX51D+AZ, etc |
Thickness | 0.6-3.0mm |
Width | 500-1500mm |
Tolerance | Thickness: +/-0.02mm , Width:+/-2mm |
Zinc-coating | Z30-150g/m2 |
Technique | Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume |
Surface | Dried, Chromated, Unoiled |
Spangle | Regular spangle , small spangle, zero spangle |
ID | 508MM 610MM |
Coil weight | 1-25MT |
Export package | Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed |
FAQ of Prime quality square alloy steel billet 145mm Q235
We have organized several common questions for our clients，may help you sincerely：
1. How Can I Visit There?
Our company is located in Tianjin City, China, near Beijing. You can fly to Tianjin Airport Directly. All our clients, from home or aboard, are warmly welcome to visit us!
2. How Can I Get Some Sample?
We are honored to offer you sample.
3. Why choose CNBM?
Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry we also try our best for the delivery time ,because time longer and our cost is higher.
- Q: What are steel billets?
- Steel billets are semi-finished metal products that are typically rectangular in shape and made from molten steel. They serve as raw material for further processing and are commonly used in the production of bars, rods, and wire products.
- Q: How are steel billets used in the manufacturing of bars and rods?
- Steel billets are used as the raw material in the manufacturing of bars and rods. The billets are heated and then passed through a series of rollers to shape them into the desired size and shape. This process, known as hot rolling, increases the strength and durability of the steel, making it suitable for various applications such as construction, automotive, and machinery industries.
- Q: How do steel billets contribute to the strength of a structure?
- Steel billets contribute to the strength of a structure by providing a high-strength, durable material that can withstand heavy loads and stress. Due to their composition and manufacturing process, steel billets offer superior strength and structural integrity, making them ideal for use in construction projects. They can be shaped and formed into various structural components, such as beams, columns, and reinforcement bars, which enhance the overall stability and load-bearing capacity of a structure. Additionally, the uniformity and consistency of steel billets ensure that the strength of the structure remains consistent throughout, further enhancing its overall strength and reliability.
- Q: How are steel billets forged into shape?
- The process of hot forging is utilized to shape steel billets. It entails heating the billet to a temperature that enables easy manipulation, typically ranging from 1100 to 1250 degrees Celsius. Once heated, the billet is positioned on a die, which is a specially designed tool with a cavity that imparts the desired shape onto the final product. Pressure is exerted on the billet by a large mechanical or hydraulic press, compelling it to fill the die cavity. This pressure induces the steel to flow and take the shape of the die, resulting in the intended form of the forged item. Depending on the product's size and complexity, the pressure applied during forging can reach several thousand tons. Throughout the forging process, the steel billet undergoes plastic deformation, causing its internal structure to rearrange and the metal grains to align. This grain alignment enhances the mechanical properties of the forged product, increasing its strength and durability. To achieve the final dimensions and features, additional operations such as trimming, piercing, or punching may be conducted after the initial shaping. These post-forging operations can be carried out while the steel is still hot or after it has cooled down. Once the desired shape is attained, the forged product is slowly cooled to alleviate any residual stresses and prevent cracking. This cooling process, known as annealing, enhances the metallurgical properties of the steel and improves its overall performance. To summarize, the hot forging process involves heating the steel billet, placing it on a die, applying high pressure to shape it, and subsequently cooling it to optimize its mechanical properties. This process enables the transformation of steel into various intricate shapes, making it a versatile and extensively used material across multiple industries.
- Q: Can steel billets be cold rolled?
- No, steel billets cannot be cold rolled. Cold rolling is a process that involves reducing the thickness of a metal sheet or strip by passing it through a series of rollers at room temperature. However, steel billets are primarily used as raw material for the production of steel bars, rods, and other long products through a process known as hot rolling. In this process, the steel billets are heated to high temperatures and then passed through a series of rolling mills to achieve the desired shape and dimensions. Cold rolling is not suitable for steel billets as it requires heating to make the steel more malleable and easily deformable, which is not possible with the solid, unheated billets.
- Q: What are the challenges in welding steel billets?
- There are several challenges that can arise when welding steel billets. One of the main challenges is ensuring proper heat distribution during the welding process. Steel billets are often large and thick, which can make it difficult to evenly distribute heat throughout the material. This can result in inconsistencies in the weld, leading to weak spots or even failure of the joint. Another challenge is the potential for distortion and warping of the billet during the welding process. As heat is applied to the steel, it can cause the material to expand and contract, leading to unwanted changes in shape and dimensions. This can be particularly problematic when welding large or complex structures, as maintaining the desired shape and dimensions becomes critical. Additionally, steel billets can contain impurities and contaminants that can affect the quality of the weld. These impurities, such as sulfur, phosphorus, and other elements, can lead to the formation of brittle zones or other defects in the weld. Proper cleaning and preparation of the billet surface, as well as using appropriate welding techniques and filler materials, are necessary to mitigate these challenges. Furthermore, the high carbon content often found in steel billets can make them prone to cracking during the welding process. Carbon acts as a hardening agent in steel and can increase its susceptibility to cracking, especially if proper preheating and post-weld heat treatment procedures are not followed. Controlling the cooling rate and implementing stress-relieving techniques are essential in preventing cracking and ensuring the integrity of the weld. Lastly, the sheer size and weight of steel billets can present logistical challenges during the welding process. Handling and positioning these heavy objects require specialized equipment and skilled operators to ensure safety and accuracy. Additionally, the need for precise alignment and fit-up can be more challenging with large billets, requiring careful planning and execution. In conclusion, welding steel billets poses challenges such as heat distribution, distortion and warping, impurities and contaminants, carbon-induced cracking, and logistical issues. Overcoming these challenges requires expertise, proper equipment, and adherence to appropriate welding techniques and procedures.
- Q: What are the different surface treatments for improved fatigue resistance in steel billets?
- To enhance the fatigue resistance of steel billets, several surface treatments can be utilized. These treatments aim to improve the steel's fatigue strength by reducing crack formation and propagation, increasing resistance to cyclic loading conditions. Some common surface treatments include: 1. Shot peening: This technique involves bombarding the steel billets with small metallic or ceramic particles at high velocities. By inducing compressive residual stresses on the surface, crack initiation and propagation are prevented, thus improving fatigue resistance. 2. Nitriding: Through this heat treatment process, nitrogen is diffused into the surface layer of the steel billets. This creates a hard nitride layer, increasing hardness, wear resistance, and fatigue strength. 3. Carburizing: Carbon is diffused into the surface layer of the steel billets at high temperatures, increasing carbon content and forming a hardened layer. This enhances fatigue resistance and wear properties. 4. Shot peen forming: Controlled shot peening induces plastic deformation in the steel billets. This treatment improves fatigue resistance, as well as shape and dimensional stability. 5. Surface coatings: Protective coatings can be applied to the surface of steel billets to enhance fatigue resistance. Techniques such as electroplating, thermal spraying, and chemical vapor deposition can deposit wear-resistant and fatigue-enhancing coatings. It is important to consider specific application requirements, steel type, and desired fatigue improvement level when choosing a surface treatment. Thorough consideration and testing should be conducted to determine the most suitable technique for a particular application.
- Q: How are steel billets used in the manufacturing of industrial valves?
- Steel billets are an integral component in the manufacturing of industrial valves. Valves are crucial devices used to control the flow of fluids or gases in various industrial processes. Steel billets, which are semi-finished metal products, play a significant role in the production of these valves. The manufacturing process of industrial valves typically involves several steps, including forging, machining, and assembly. Steel billets are primarily used in the forging stage of valve production. Forging is the process of shaping metal by applying localized compressive forces using dies or hammers. Steel billets are heated to a specific temperature and then subjected to intense pressure, which deforms them into the desired shape. The use of steel billets in forging valves offers several advantages. Firstly, steel is known for its exceptional strength and durability, making it an ideal material choice for valves that are exposed to high-pressure environments. Steel billets provide the necessary raw material to create robust and reliable valve components. Additionally, steel billets can be easily shaped and molded during the forging process. This allows manufacturers to create complex valve designs with precision and accuracy. The versatility of steel billets enables the production of valves in various sizes, shapes, and configurations to meet specific industrial requirements. Furthermore, steel billets can be heat-treated after forging to enhance their mechanical properties. Heat treatment processes like quenching and tempering can significantly improve the hardness, strength, and wear resistance of the valve components. This ensures that the valves can withstand harsh operating conditions and deliver optimal performance over an extended period. In conclusion, steel billets are essential in the manufacturing of industrial valves. They provide the raw material required for forging valve components, offering strength, durability, and versatility. The use of steel billets enables the production of high-quality valves that can effectively control the flow of fluids or gases in industrial processes.
- Q: What is the average weight of a steel billet?
- The size and dimensions of a steel billet can cause variations in its average weight. Nevertheless, a standard steel billet generally ranges from 1,000 kilograms (2,204 pounds) to 5,000 kilograms (11,023 pounds). These weight ranges are commonly observed in industrial-grade steel billets utilized in diverse manufacturing techniques like forging, rolling, and extrusion. It should be emphasized that the weight of a steel billet can be tailored according to specific necessities and industry norms.
- Q: Charcoal is how to
- The trees cut into sections, lit in a kiln, burning to a certain extent, closed air into the kiln, waste heat to heat water and carbonization of wood, wood tar is leavened, carbonization of wood charcoal as. This is similar to charcoal used in home fires.
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Prime quality square alloy steel billet 145mm Q235
- 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
OKorder Financial Service
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