Hot-Dip Galvanized Steel Roof with High Quality of China

Hot-Dip Galvanized Steel Roof with High Quality of China System 1

Hot-Dip Galvanized Steel Roof with High Quality of China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 10000 m.t./month

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1. Hot-Dip Galvanized Steel Roof Description：

Hot-dip galvanized steel roof are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial application.

2.Main Features of the Hot-Dip Galvanized Steel Roof：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Roof Images

Hot-Dip Galvanized Steel Roof with High Quality of China

4.Hot-Dip Galvanized Steel Roof Specification

Material: Galvanized Sheet

Width: 650/800/890/900

Length: 1500/1800/2000/2400/3005/3600 or customized

Thickness: 0.2-2.0

Surface Treatment: Hot dipped/Bended

Application: warehouse; shelter; Commercial facilities; industrial facilities

5.FAQ of Hot-Dip Galvanized Steel Roof

Which payment term we can do?

L/C at sight or T/T.

What’s the basic material of this product?

Galvanized/Aluzinc Steel

Q: Are steel coils used in the packaging industry?: Yes, steel coils are commonly used in the packaging industry for various applications such as strapping, bundling, and securing heavy loads.

Q: What are the different grades of steel used for making coils?: There are several different grades of steel that are commonly used for making coils, depending on the specific application and requirements. Some of the most commonly used grades include: 1. Low carbon steel (also known as mild steel): This grade of steel is often used for making coils as it offers good formability, weldability, and machinability. It is suitable for a wide range of applications where strength and durability are not the primary requirements. 2. High carbon steel: This grade of steel contains higher levels of carbon, which provides increased strength and hardness. It is commonly used for making coils that require high strength and resistance to wear and tear, such as springs and automotive components. 3. Stainless steel: This grade of steel contains a high percentage of chromium, which provides excellent corrosion resistance. Stainless steel coils are commonly used in applications where resistance to rust and staining is crucial, such as kitchen appliances, automotive trim, and medical equipment. 4. Galvanized steel: This grade of steel is coated with a layer of zinc, which provides excellent corrosion resistance. Galvanized steel coils are commonly used in outdoor applications where exposure to moisture and other elements is a concern, such as roofing, fencing, and HVAC ductwork. 5. Electrical steel: This grade of steel is specially designed for use in electrical applications, such as transformers, motors, and generators. It has low levels of impurities and is optimized for high magnetic permeability and low core loss. 6. Advanced high-strength steel (AHSS): This grade of steel is engineered to provide exceptional strength while maintaining good formability. AHSS coils are commonly used in the automotive industry for lightweighting vehicles while ensuring structural integrity and crashworthiness. These are just a few examples of the different grades of steel used for making coils. The specific grade chosen will depend on factors such as the intended application, desired properties, and cost considerations.

Q: What are the different types of coatings applied to steel coils?: There are various types of coatings that can be applied to steel coils, each with its own specific purpose and benefits. 1. Galvanized Coating: This is one of the most common types of coatings applied to steel coils. It involves the application of a layer of zinc to the steel surface. Galvanized coatings provide excellent corrosion resistance, making them suitable for outdoor applications where the steel may be exposed to moisture or harsh environmental conditions. 2. Galvalume Coating: Similar to galvanized coating, galvalume coating also involves the application of a layer of zinc to the steel surface. However, it also includes a small amount of aluminum, which enhances the corrosion resistance and provides better heat reflectivity. Galvalume coatings are often used in roofing and cladding applications. 3. Pre-painted Coating: Pre-painted coatings involve the application of a layer of paint or primer to the steel surface. This type of coating allows for customization in terms of color and finish. Pre-painted coatings not only enhance the aesthetics of the steel but also provide additional protection against corrosion and weathering. 4. Organic Coating: Organic coatings are typically applied as a topcoat over a galvanized or galvalume coating. They are made of various resins, such as polyester, epoxy, or polyurethane, which provide additional protection against corrosion, abrasion, and chemicals. Organic coatings are commonly used in applications where both aesthetics and durability are important, such as in the automotive industry. 5. Metallic Coating: Metallic coatings, such as aluminum or zinc, are applied to steel coils using a process called hot-dip coating. These coatings provide excellent corrosion resistance and are commonly used in applications where the steel is exposed to high temperatures or corrosive environments. 6. Chromate Conversion Coating: Chromate conversion coatings are applied to steel coils primarily for their corrosion resistance properties. They are commonly used in electrical applications to protect against galvanic corrosion and improve conductivity. Overall, the type of coating applied to steel coils depends on the specific requirements of the application, including the desired level of corrosion resistance, aesthetics, and environmental factors.

Q: What are the different methods of coil leveling?: Various industries commonly utilize several methods for coil leveling. These methods encompass: 1. Roller leveling: By passing the coil through a sequence of rollers, pressure is applied gradually, resulting in the gradual flattening of the coil. The rollers can be adjusted to exert varying levels of pressure, allowing for precise control over the leveling process. 2. Stretch leveling: This technique subjects the coil to tension forces, elongating the material and eliminating internal stresses. As the coil is stretched while passing through rollers, a more uniform and flat surface is achieved. 3. Temper leveling: Involving the heating of the coil to a specific temperature followed by rapid cooling, this method helps equalize stresses within the coil and enhance its flatness. Temper leveling is often employed for high-strength steels. 4. Roller leveling with leveling rolls: This approach utilizes additional leveling rolls placed above and below the main leveling rollers. These rolls apply pressure to specific areas of the coil, rectifying any unevenness or distortions. 5. Tension leveling: This method involves applying tension to the coil during processing. The tension aids in straightening and flattening the material, resulting in a more even and flat surface. 6. Precision leveling: Employed for high-precision applications necessitating extremely flat and uniform coils, precision leveling combines roller leveling, stretch leveling, and other corrective measures to attain the desired flatness. Each of these methods possesses unique advantages and limitations. The selection of a particular method depends on factors such as the type of material being leveled, the required flatness tolerance, and the intended application of the coil.

Q: I feel really stupid asking this question but i feel like a put metal/steel strings on my classical guitar how do you tell the difference?: Nylon strings are made of nylon; steel strings are made of .... if you put steel strings on your nylon string (classical style) guitar, you will destroy it. The instrument cannot stand up under the tension required for the strings, they will not fit in the saddle properly, they will cut the nut, and your machine heads may break. ... now if you're asking about the three lowest strings, those are metal wound around nylon on a nylon string guitar.

Q: How are steel coils used in the production of electrical switches?: Steel coils are used in the production of electrical switches as they act as the core of the electromagnetic system. When an electric current passes through the coil, it creates a magnetic field which attracts or repels a movable metal component, allowing the switch to open or close. This mechanism is crucial for controlling the flow of electricity in various electrical devices and systems.

Q: I am searching for an online article which discusses any aspect of the use of austenitic stainless steels. I was just wondering if anyone could help me find one. No sales articles. Thank you!: *Austenitic, okorder

Q: What are the common coil edge options?: The common coil edge options include open coil edges, closed coil edges, and double heat-treated coil edges.

Q: How are steel coils used in the production of HVAC equipment?: Steel coils are used in the production of HVAC equipment primarily for their heat transfer capabilities. These coils, made of high-quality steel, are essential components in the heat exchangers of HVAC systems. They help facilitate the transfer of heat between the refrigerant and the surrounding air, allowing for efficient heating or cooling. The steel coils are typically designed with fins or tubes to increase the surface area and enhance heat transfer efficiency, ensuring optimal performance and energy efficiency in HVAC units.

Q: What is the average flatness tolerance for steel coils?: The average flatness tolerance for steel coils typically ranges between 0.25% and 0.5% of the coil's width.

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