COLORED CORRUGATED METAL SHEET FOR ROOFING
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 2000 m.t./month
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Item specifice
Product Brief Introduction
COLORED CORRUGATED STEEL SHEET FOR ROOFING
--- Corrosion resistance: Pre-coated steel offers excellent corrosion resistance achived through continuous hot DIP galvanization and corrosion resistant primer/polyester coating. Protection is achieved when zinc and steel are together in the presence of moisture; The zinc protects the steel by galvanic action
Product Features
. Traditional aesthetics outlook
. Suitable for new house or renovation.
. Less joints, watertight
. Long life service
. Tedun also provide relative ridge cap, fasteners and other accessories
Product Specification
Standard:ASTM, GB,JIS,JIS G3302 ASTM 755 EN10169
Grade: DX51D CGCC CS
Thickness: 0.13mm~3.0mm,
Width: 1250,600-1250mm
Coil weight:3-12 MT
Coil ID:508/610mm
Chemical composition:
C | Si | Mn | Cr | Ni | P | S |
0.150 | 0.476 | 11.231 | 12.50 | 0.900 | 0.039 | 0.010
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FAQ
How long will we receive the goods ?
45days after receiving workable L/C
how do you control the quality ?
we have our own quality control department ,we will arrange QC person to see the production line ,when goods finish ,before shipment ,our QC person will check the quality as per our test report request ,if the goods is ok ,then we issue the test report ,and we allow the goods shipping ,otherwise will not allow ship the goods.
- Q:
- There are several mechanical testing methods that can be used to evaluate the properties and performance of steel strips. These methods aim to determine the strength, hardness, ductility, and other important mechanical properties of the steel material. Some common mechanical testing methods for steel strips include: 1. Tensile Testing: This method involves applying a tensile force to a steel strip specimen until it breaks. It helps determine the ultimate tensile strength, yield strength, and elongation of the material. Tensile testing provides valuable information about the strength and ductility of the steel strip. 2. Hardness Testing: Steel strips can be tested for their hardness using various methods such as Brinell, Rockwell, or Vickers hardness tests. These tests measure the resistance of the material to indentation or penetration by a standardized indenter. Hardness testing helps assess the material's ability to resist wear and deformation. 3. Bend Testing: In this method, a steel strip is bent to a specific angle or curvature to assess its flexibility and resistance to cracking or fracture. Bend testing provides information about the material's ductility and ability to withstand deformation. 4. Impact Testing: This test measures the energy absorbed by a steel strip when subjected to a sudden impact or shock. Charpy and Izod impact tests are commonly used to determine the toughness and resistance to brittle fracture of the material. 5. Fatigue Testing: Fatigue testing involves subjecting a steel strip to repeated cyclic loading and unloading to evaluate its resistance to fatigue failure. This test helps determine the material's endurance limit, fatigue strength, and fatigue life under specific loading conditions. 6. Compression Testing: This method involves applying a compressive force to a steel strip specimen to determine its compressive strength and behavior under compression. Compression testing helps assess the material's resistance to crushing or buckling. 7. Microhardness Testing: This testing method utilizes a microindentation technique to measure the hardness of a steel strip at a very small scale. It provides information about the material's hardness variation across its microstructure, which is useful for assessing its mechanical properties and heat treatment effects. By utilizing these mechanical testing methods, manufacturers and researchers can ensure that steel strips meet the required quality standards and performance criteria for various applications such as automotive, construction, and manufacturing industries.
- Q:Causes of zinc removal in hot rolled strip
- The residual impurity particles on the substrate surface are not removed before immersion into the zinc pot, which affects the adhesion of the zinc layer.
- Q:
- To guarantee the utmost safety and performance, the aerospace industry imposes stringent and meticulous specifications on steel strips. Here are some of the vital requirements: 1. Composition of Materials: Chemical compositions of the steel strips must adhere to specific standards to meet the desired strength, durability, and resistance to corrosion. Stainless steel, high-strength low-alloy (HSLA) steel, and nickel-based alloys are commonly utilized. 2. Tolerances for Dimensions: The steel strips must conform to precise dimensional tolerances to ensure suitable fit and functionality within aerospace components. This encompasses measurements of thickness, width, and length, often indicated in micrometers or inches. 3. Surface Finish: The surface finish of the steel strips plays a crucial role in minimizing friction, preventing corrosion, and optimizing performance. It is often expressed in terms of roughness average (RA) or surface finish grade. Additionally, additional coatings or treatments may be necessary to enhance surface properties. 4. Mechanical Properties: The steel strips employed in aerospace applications must possess specific mechanical properties, including tensile strength, yield strength, elongation, and hardness. These properties guarantee that the strips can withstand the challenging conditions encountered during flight, such as high temperatures, vibrations, and external forces. 5. Heat Treatment: Depending on the intended use, the steel strips may require specific heat treatment processes to enhance their mechanical properties. This may involve techniques such as annealing, quenching, tempering, or precipitation hardening, with the aim of achieving the desired strength, toughness, or ductility. 6. Certification and Testing: Steel strips used in the aerospace industry undergo rigorous testing and certification procedures to ensure compliance with industry standards and regulations. Non-destructive testing methods, such as ultrasonic testing, magnetic particle testing, or dye penetrant inspection, are employed to identify any defects or flaws. It is important to note that the precise specifications for steel strips utilized in the aerospace sector may vary depending on specific applications, aircraft types, and regulatory requirements. Therefore, it is crucial to consult the relevant aerospace standards and specifications for precise details.
- Q:
- The corrosion resistance of a galvanized steel strip is typically very high. Galvanization is a process in which a layer of zinc is applied to the surface of the steel through a hot-dip or electroplating method. This layer acts as a protective barrier, preventing the steel from coming into direct contact with moisture, oxygen, and other corrosive elements in the environment. The zinc coating provides excellent corrosion resistance due to its sacrificial nature. In the presence of corrosive agents, such as water or salt, the zinc sacrificially corrodes instead of the underlying steel. This sacrificial corrosion process forms a layer of zinc oxide or carbonate on the surface, which acts as a physical barrier against further corrosion. The thickness of the galvanized coating plays a crucial role in determining the corrosion resistance. Thicker coatings generally provide better protection against corrosion. The thickness can be customized based on the specific application requirements. Additionally, galvanized steel strips can also be further enhanced with additional coatings such as organic or inorganic coatings, which can improve the overall corrosion resistance even further. Overall, the corrosion resistance of a galvanized steel strip is considered to be excellent, making it a popular choice for various applications where protection against corrosion is essential, such as in construction, automotive, and infrastructure industries.
- Q:
- Steel strips are used in the aerospace industry for various purposes, including manufacturing aircraft components, such as structural parts, fasteners, and fittings. These strips are often used for their high strength and durability, providing stability and structural integrity to the aircraft. Additionally, they can be used in the fabrication of landing gear, engine mounts, and other critical components that require high strength and resistance to extreme conditions. Overall, steel strips play a crucial role in maintaining the safety and reliability of aircraft in the aerospace industry.
- Q:
- Welding steel strips can be accomplished through various methods, each with its own benefits and applications. Some commonly employed techniques are: 1. Arc Welding: This method employs an electric arc to generate heat and melt the steel strips. Different types of arc welding, like Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), and Flux-Cored Arc Welding (FCAW), offer versatility and suitability for different strip thicknesses. 2. TIG Welding: Tungsten Inert Gas (TIG) welding is widely used for steel strip welding. It employs a non-consumable tungsten electrode to create an arc, and filler material is added if necessary. TIG welding delivers high-quality and precise welds, making it ideal for delicate strips and critical applications. 3. MIG Welding: Metal Inert Gas (MIG) welding is a semi-automatic technique that utilizes a consumable wire electrode and inert gas to shield the weld pool. It is a fast and efficient process, well-suited for industrial applications involving steel strip welding. 4. Laser Welding: This non-contact method employs a powerful laser beam to melt and join the steel strips. Laser welding offers precise control and minimal heat input, resulting in narrow and clean welds. It is commonly used in industries like electronics and automotive for thin steel strips. 5. Resistance Welding: Resistance welding utilizes the heat generated from an electric current passing through the steel strips to join them. Spot welding, seam welding, and projection welding are different types of resistance welding. The automotive industry frequently employs this method to join steel strips together. 6. Plasma Arc Welding: Plasma arc welding is a variation of TIG welding that employs a focused plasma arc to melt the steel strips. It provides higher energy density compared to conventional TIG welding, enabling faster welding speeds and deeper penetration. Plasma arc welding finds applications in industries such as aerospace and shipbuilding, particularly for thicker steel strips. Overall, the selection of a welding method for steel strips depends on factors like strip thickness, desired weld quality, and specific application requirements. Each method offers unique advantages and should be chosen based on the project's specific needs.
- Q:
- The international standards for steel strips are set by various organizations such as the International Organization for Standardization (ISO) and the American Society for Testing and Materials (ASTM). These standards define the requirements and specifications for the manufacturing, testing, and usage of steel strips globally. ISO standards for steel strips cover aspects such as dimensions, tolerances, surface quality, mechanical properties, and chemical composition. ISO 9444-2 specifies the tolerances for hot-rolled stainless steel strips, while ISO 16162 outlines the requirements for continuously hot-dip coated steel flat products. ASTM standards provide guidance for steel strips used in various industries. For example, ASTM A109/A109M covers the requirements for cold-rolled carbon steel strip, while ASTM A568/A568M specifies the general requirements for steel, carbon, and high-strength, low-alloy hot-rolled and cold-rolled strip. Other organizations, like the European Committee for Standardization (CEN) and the Japan Industrial Standards (JIS), also establish their own standards for steel strips that are widely recognized and used in their respective regions. Complying with these international standards ensures that steel strips meet the necessary quality and performance requirements, facilitating their use in a wide range of applications such as automotive parts, construction materials, and electrical appliances.
- Q:
- Steel strips are processed for specific applications using various techniques. The first step in the process is to select the appropriate type of steel for the desired application. This could be carbon steel, stainless steel, or any other type of steel with specific properties required for the application. Once the steel strip is selected, it undergoes a series of processing steps. The first step is usually cleaning and pickling, where the strip is treated with chemicals to remove any impurities and scale from the surface. This improves the strip's surface quality and prepares it for further processing. After cleaning, the strip may be rolled or annealed to achieve the desired thickness and mechanical properties. Rolling involves passing the strip through a series of rollers, gradually reducing its thickness. Annealing, on the other hand, involves heating the strip to a specific temperature and then slowly cooling it to improve its ductility and reduce internal stresses. Depending on the application, the strip may also undergo additional processing steps such as tempering, galvanizing, or coating. Tempering is a heat treatment process that improves the strip's toughness and strength. Galvanizing involves applying a protective zinc coating to prevent corrosion. Coating, on the other hand, can involve applying a layer of paint, polymer, or other materials to enhance the strip's appearance or provide additional protection. Once the steel strip is processed according to the specific application requirements, it can be further fabricated into various products. These products can include automotive components, construction materials, electrical equipment, or even household appliances. The processed steel strips are often cut, stamped, formed, or welded to achieve the desired shape and functionality. In conclusion, steel strips are processed for specific applications by selecting the appropriate type of steel, cleaning and pickling, rolling or annealing, and applying additional treatments such as tempering, galvanizing, or coating. The processed steel strips are then fabricated into various products to meet the specific needs of different industries.
- Q:
- Steel strips are commonly used in the manufacturing of hand tools as they provide the necessary strength and durability. These strips are shaped, formed, and cut to create various components of hand tools such as blades, handles, and brackets. Additionally, steel strips can be heat-treated to improve their hardness and resistance to wear, ensuring that the tools can withstand heavy usage and perform effectively.
- Q:
- Some common welding methods used for steel strips include MIG (Metal Inert Gas) welding, TIG (Tungsten Inert Gas) welding, and spot welding. MIG welding is a popular choice for its speed and versatility, while TIG welding offers precise control and high-quality welds. Spot welding is commonly used for joining steel strips by applying heat and pressure at specific points.
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