Z27 BMP Rolled Steel Coil Construction Roofing Construction
- 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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Quality Product, Order Online Tracking, Timely Delivery
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Structure of Z27 BMP Rolled Steel Coil Construction Roofing Construction
Description of Z27 BMP Rolled Steel Coil Construction Roofing Construction
PPGI is made by cold rolled steel sheet and galvanized steel sheets as baseplate, through the surface pretreatment (degreasing, cleaning, chemical conversion processing), coated by the method of continuous coatings (roller coating method),
and after roasting and cooling. Zinc coating: Z60, Z80, Z100, Z120, Z180, Z275, G30, G60, G90
Alu-zinc coating: AZ60, AZ80, AZ100, AZ120, AZ180, G30, G60, G90
Main Feature of Z27 BMP Rolled Steel Coil Construction Roofing Construction
1) Excellent corrosion resistance: The zinc layer provides a good protection of Pre-painted Galvanizeed Steel Sheet.
2) High heat resistance: The reflective surface of the material aids in efficiently reflecting the sunlight away and in turn reducing the amount of heat transmitted. The thermal reflectivity converts into energy savings.
3) Aesthetics: Pre-Painted Galvanized steel sheet is available in plethora of patterns and multiple sizes as per the requirements that given by our customers.
4) Versatility: can be used in the various areas.Standard seaworthy export packing: 3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.
Applications of Z27 BMP Rolled Steel Coil Construction Roofing Construction
1. Construction and building: roofing; ventilating duct; handrail; partition panel;etc.
2. Electric appliance: refrigerator; washing machine; refrigerator; DVD;etc.
3.Transportation: oil tank; road sign; etc.
4.Agriculture:barn; etc.
5.Others:vending machine; game machine; etc. 
Specifications of Z27 BMP Rolled Steel Coil Construction Roofing Construction
| Classified symbol | Yield Point Minimum N/mm2 | Tensile Strength Minimum | Elongation Minimum % | Application | ||||
| N/mm2 | Nominal Thickness mm (t) | |||||||
| JIS | Yogic | 0.25-0.4 | 0.4-0.6 | 0.6-1.0 | 1.0-1.6 | |||
| G3312 | specification | |||||||
| CGCC | CGCC | -205 | -270 | -20 | -21 | -24 | -24 | Commercial |
| CGCD | CGCD | --- | 270 | --- | 27 | 31 | 32 | Drawing |
| --- | CG340 | 245 | 340 | 20 | 20 | 20 | 20 | Structural |
| CGC400 | CG400 | 295 | 400 | 16 | 17 | 18 | 18 | Structural |
| CGC440 | CG440 | 335 | 440 | 14 | 15 | 16 | 18 | Structural |
| CGC490 | CG490 | 365 | 490 | 12 | 13 | 14 | 16 | Structural |
| CGC570 | CG570 | 560 | 570 | --- | --- | --- | --- | Structural |
| ASTM Designation | Yield Point Minimum | Tensile Strength Minimum | Elongation Minimum % | Application | Q/BQB 445-2004(China standard) | ASM A653/A653M | JISG 3312 | |
| ksi(MPa) | ksi(MPa) | TDC51D+Z | (CS TYPE A+Z) | CGCC | ||||
| A653(M)-99 CS TYPE A,B,C | --- | --- | --- | Commercial | TDC52D+Z | CGCD | ||
| A653(M)-99 FS | --- | --- | --- | Lock Forming | TS250GD+Z | (G250+Z) | - | |
| A653(M)-99 DS | --- | --- | --- | Drawing | TS300GS+Z | (G300+Z) | CGC 400 | |
| A653(M)-99 SS Grade33(230) | 33(230) | 45(310) | 20 | Structural | TS350GD+Z | (G350+Z) | CGC490 | |
| A653(M)-99 SS Grade37(255) | 37(255) | 52(360) | 18 | Structural | TS550GD+Z | (G550+Z) | CGC570 | |
| A653(M)-99 SS Grade40(275) | 40(275) | 55(380) | 16 | Structural | ||||
| A653(M)-99 SS Grade50(345) | 50(345) | 65(450) | 12 | Structural | ||||
| A653(M)-99 SS Grade80(550) | 80(550) | 82(570) | --- | Structural | ||||
FAQ of Z27 BMP Rolled Steel Coil Construction Roofing Construction
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?
1, ISO, BV, CE, SGS approved.
2, Competitive price and quality.
3, Efficient service team online for 24 hours.
4, Smooth production ability(50000tons/month) .
5, quick delivery and standard exporting package.
6, Flexible payment with T/T, L/C, Paypal, Kunlun bank, etc .
- Q:How are steel billets used in the manufacturing of storage tanks?
- Steel billets are used in the manufacturing of storage tanks as a primary raw material. These billets, which are semi-finished metal forms, serve as the starting point for the production of steel plates or sheets that are then used to construct the tank walls and base. Once the steel billets are obtained, they are heated and then passed through a series of rollers to gradually shape them into the desired form. This process, known as hot rolling, helps to create the necessary thickness and dimensions required for the storage tank. After the hot rolling process, the steel billets are further processed to remove any surface impurities or imperfections through a technique called descaling. This helps to ensure the quality and durability of the final tank structure. The steel billets are then cut into smaller pieces, known as plates or sheets, which are then formed and welded together to create the tank shell. These plates are typically cut and shaped according to specific engineering drawings and designs, ensuring that the tank meets the required specifications for strength, capacity, and structural integrity. In addition to the tank shell, steel billets are also used to manufacture the tank's base or floor. The billets are processed and formed into the required shape, which is then welded or bolted to the tank shell to provide a solid foundation for the storage tank. Overall, steel billets play a crucial role in the manufacturing of storage tanks by providing the necessary raw material from which the tank structure is built. Through various processes, the billets are transformed into steel plates and sheets, which are then formed into the tank shell and base, ensuring the tank's strength and durability.
- Q:Can steel billets be used in the production of pipes?
- Yes, steel billets can be used in the production of pipes. Steel billets are semi-finished metal products that can be further processed into various shapes, including pipes. The billets are heated, pierced, and elongated to form seamless pipes or rolled and welded to create welded pipes.
- Q:What are the common surface defects in steel billets during reheating?
- During the reheating process of steel billets, several common surface defects may occur. These defects can have a negative impact on the quality and integrity of the final product. Some of the most common surface defects in steel billets during reheating include: 1. Scale Formation: When steel billets are exposed to high temperatures, a layer of iron oxide, known as scale, can form on the surface. Scale is brittle and can easily crack or flake off, leading to a rough and uneven surface. 2. Decarburization: Decarburization is the loss of carbon from the surface of the steel billets due to exposure to high temperatures. This can result in a reduced carbon content on the surface, making it prone to cracking, reduced hardness, and poor mechanical properties. 3. Surface Oxidation: Steel billets can undergo oxidation when exposed to oxygen in the air during reheating. This can lead to the formation of a thin layer of oxide on the surface, affecting the surface finish and potentially reducing the corrosion resistance of the steel. 4. Overheating: Overheating during reheating can cause localized melting or partial melting of the steel billets. This can result in surface irregularities, such as pits, cracks, or blisters, which compromise the integrity of the billets. 5. Hot Spots: Uneven heating of the steel billets can lead to the formation of hot spots on the surface. These localized areas of excessive heat can cause surface defects like warping, cracking, or surface defects like scorching or discoloration. 6. Surface Contamination: During reheating, steel billets can come into contact with contaminants, such as dirt, oil, or other foreign materials. These contaminants can adhere to the surface of the billets, leading to surface defects like stains, pitting, or uneven surface finish. 7. Thermal Shock: Rapid changes in temperature during reheating can cause thermal shock, leading to surface defects like cracks or distortions. This can occur when the steel billets are exposed to water or a cooling medium or when there are substantial temperature differences across the surface of the billets. To minimize these surface defects in steel billets during reheating, proper heating techniques, control of heating rates, and the use of protective coatings or atmospheres can be employed. Additionally, regular inspection and quality control measures can help identify and mitigate surface defects before they affect the final product's quality.
- Q:What are the different methods of steel billet surface polishing?
- There are several methods of steel billet surface polishing, including mechanical polishing, chemical polishing, electropolishing, and abrasive blasting. Mechanical polishing involves using abrasive materials and machinery to remove surface imperfections and create a smooth finish. Chemical polishing utilizes chemical solutions to dissolve and remove surface impurities, resulting in a polished surface. Electropolishing involves the use of an electric current to dissolve and remove surface material, resulting in a smooth and shiny finish. Abrasive blasting uses high-pressure air or water to propel abrasive particles onto the surface, removing contaminants and creating a polished appearance.
- Q:What are the different types of straightening methods used for steel billets?
- There are several different types of straightening methods used for steel billets, depending on the specific requirements and desired outcome. These methods include: 1. Roller Straightening: This method involves passing the steel billets through a series of rollers that apply pressure in various directions to straighten them. The rollers can be adjusted to apply more pressure on certain areas of the billet that may be bent or twisted. 2. Hydraulic Straightening: In this method, hydraulic presses are used to apply pressure on the billets, either in a single direction or in multiple directions. The pressure can be adjusted to achieve the desired level of straightness. 3. Heat Straightening: Heat straightening is a method that involves applying heat to the bent or twisted areas of the steel billets and then using hydraulic or mechanical tools to straighten them. The heat softens the steel, allowing it to be reshaped more easily. 4. Hammering: Hammering is a traditional method of straightening steel billets, where skilled workers use hammers and anvils to manually reshape the billets. This method requires a high level of skill and precision to achieve the desired straightness. 5. Magnetic Straightening: Magnetic straightening is a non-contact method that uses magnetic fields to apply forces on the steel billets and straighten them. This method is often used for smaller and thinner billets, where other methods may cause damage or distortion. Each of these straightening methods has its own advantages and limitations, and the choice of method depends on factors such as the size and thickness of the billets, the degree of straightness required, and the available equipment and resources.
- Q:What are the main factors affecting the tensile strength of steel billets?
- The main factors affecting the tensile strength of steel billets include the chemical composition of the steel, the heat treatment process, the presence of impurities or defects in the material, the grain size and orientation, and the processing conditions used during manufacturing.
- Q:How are steel billets used in the manufacturing of construction scaffolding?
- The manufacturing of construction scaffolding relies heavily on steel billets, which are an indispensable raw material. Initially, the billets are heated and then passed through rolling mills to achieve the desired shape and size for scaffolding components. Once the steel billets have been rolled to the required shape, they undergo further processing to create different scaffolding parts such as tubes, couplers, frames, and planks. These parts are then assembled together to form the scaffolding structure, which provides a secure and stable platform for workers during construction projects at elevated heights. There are several advantages to using steel billets in the manufacturing of construction scaffolding. Firstly, steel is renowned for its exceptional strength and durability, making it an ideal material for scaffolding. Additionally, it is resistant to corrosion and capable of withstanding harsh weather conditions, ensuring the scaffolding remains reliable and safe throughout the construction process. Furthermore, steel scaffolding is highly versatile and can be easily customized to meet various project requirements. By using steel billets, manufacturers can create scaffolding components of different sizes, shapes, and configurations to accommodate diverse construction needs. In conclusion, steel billets play a crucial role in the manufacturing of construction scaffolding. By utilizing these raw materials, scaffolding manufacturers can produce scaffolding structures that are durable, reliable, and customizable, ultimately enhancing safety and efficiency on construction sites.
- Q:What is the role of steel billets in the manufacturing of industrial boilers?
- The role of steel billets in the manufacturing process of industrial boilers is crucial. These billets act as the raw material from which the various components of the boiler are formed. Industrial boilers are complex structures that require durable materials of high quality to withstand the harsh operating conditions. Steel billets, typically made from carbon steel or alloy steel, possess excellent strength and corrosion resistance properties. They undergo a heating process before being shaped into different forms such as plates, tubes, or rods through rolling, extrusion, or forging. These formed components are then processed and assembled to create the boiler. During the manufacturing process, steel billets are used to fabricate important boiler components including the shell, tubes, and flues. The shell, made from steel plates, forms the main body of the boiler, while the tubes and flues allow for the passage of hot gases and water. Steel billets ensure the structural integrity of these components, enabling them to withstand high temperatures and pressures without deformation or failure. Additionally, steel billets are utilized in the creation of other auxiliary components of industrial boilers such as supports, brackets, and fittings. These components are vital for the proper functioning and installation of the boiler, ensuring stability, efficiency, and safety. In summary, steel billets are essential to the manufacturing of industrial boilers due to their ability to provide the necessary strength, durability, and versatility required to withstand demanding operating conditions. The utilization of high-quality steel billets guarantees that the boilers are reliable, long-lasting, and capable of meeting the rigorous performance standards expected in industrial applications.
- Q:What are the challenges faced by the steel billet industry?
- The steel billet industry encounters numerous obstacles that affect its operations and profitability. One notable challenge is the ever-changing global demand for steel products. Economic cycles exert a significant influence on the industry, directly impacting the demand for steel billets. When the economy experiences a downturn or slower growth, the demand for steel products decreases, resulting in excess inventory and reduced prices. Consequently, steel billet manufacturers face lower profit margins and struggle to sustain their operations. Additionally, the industry confronts fierce competition from other steel producers, particularly those in emerging markets. Countries like China and India have considerably expanded their steel production capacities in recent years, leading to a surplus in the global market. This oversupply drives down prices, making it arduous for steel billet manufacturers to compete on cost and maintain profitability. Moreover, the availability and pricing of raw materials pose another significant challenge for the industry. The production of steel billets necessitates a consistent supply of iron ore and other raw materials, which are susceptible to price fluctuations and disruptions in the supply chain. Any interruptions or fluctuations in the availability or cost of these raw materials can adversely affect the overall cost structure and profitability of the steel billet industry. Furthermore, environmental regulations and concerns about sustainability present an additional hurdle for the steel billet industry. Steel manufacturing is a resource-intensive process that generates substantial emissions and waste. As governments and consumers become more conscientious about environmental issues, steel billet manufacturers must invest in cleaner technologies and comply with stricter regulations. These investments can be costly and impact the industry's profitability and competitiveness. Lastly, the industry grapples with the challenge of technological advancements and innovation. To enhance production processes, improve product quality, and meet evolving customer demands, steel billet manufacturers must consistently invest in research and development. Staying abreast of the latest technological advancements necessitates significant investment, which can be particularly challenging for smaller players in the industry. In conclusion, the steel billet industry confronts various challenges, including fluctuating global demand, intense competition, raw material availability and pricing, environmental regulations, and technological advancements. Adapting to these challenges requires strategic planning, continuous improvement, and investment in innovation to remain competitive and sustainable in the market.
- Q:How are steel billets cooled after the manufacturing process?
- Steel billets are typically cooled after the manufacturing process using methods such as air cooling, water quenching, or accelerated cooling techniques.
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Z27 BMP Rolled Steel Coil Construction Roofing Construction
- 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
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