• Cold Rolled Steel Coils for Roof construction System 1
  • Cold Rolled Steel Coils for Roof construction System 2
  • Cold Rolled Steel Coils for Roof construction System 3
Cold Rolled Steel Coils for Roof construction

Cold Rolled Steel Coils for Roof construction

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
36 m.t.
Supply Capability:
30000 m.t./month

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SPCC cold rolled steel plate/cold rolled sheet building and construction 

 

Material

Standard

JIS G3141.GB/T 708-2006,EN10130,ASTM A366, GB11253-89, JIS G3141,DIN1623,EN10130

Grade

SPCC,DC01,DCO2,SPCG,Q195,Q235,SPCE,SPCD,ect

Size details

Thickness

0.1-4.5mm

Width

750-1500mm

Coil ID

508/610mm

Weight coil

5-12tons for each coil

Surface finished

General, bright,oiled or non-oiled

Technique

Cold rolled

Certificates

ISO9001:2000,CE, BV,

Packing

craft paper +steel pallet packing/steel box+steel pallet  

Productivity

1000T/M

Application

1.common structural parts and parts for drawing in engineering machines 

2.transportation machine construction machines, lifting machine

3.agricultural machines, light and civil industrial, household appliance

 industries.  

4. chemical equipments, drive casing pipe and light industrial civil

 

Q:How are steel coils stored to prevent damage?
Steel coils are typically stored in a way that prevents damage and ensures their integrity. One common method is to stack the coils in a horizontal position. This helps distribute the weight evenly across the coils, minimizing the risk of deformation or damage. In addition, wooden or steel dunnage is often placed between each layer of coils to provide support and prevent them from shifting during storage or transportation. To further protect the coils from damage, they are often stored indoors or in covered areas to shield them from exposure to the elements. This helps prevent rusting or corrosion, which can compromise the quality of the steel. If outdoor storage is necessary, the coils may be covered with weather-resistant tarps or protective coatings to minimize the impact of rain, snow, or sunlight. Furthermore, it is important to consider the stacking height to prevent excessive pressure on the lower coils. To avoid damage, coils are typically stacked in a way that ensures the weight from the upper layers is distributed evenly across the lower ones. This can include using specialized stacking equipment or racks designed to handle the weight and dimensions of the coils. Overall, proper storage of steel coils involves careful consideration of weight distribution, protection from the elements, and minimizing contact between coils to prevent damage and maintain their quality.
Q:How are steel coils inspected for chemical composition using spectroscopy?
Spectroscopy techniques such as X-ray fluorescence (XRF) and laser-induced breakdown spectroscopy (LIBS) can be employed to examine the chemical makeup of steel coils. XRF involves directing an X-ray beam onto the surface of the steel coil, prompting the sample's atoms to emit distinct X-ray fluorescence radiation. By examining the energy and intensity of these emitted X-rays, one can determine the elemental composition of the steel. This method is both rapid and non-destructive, enabling swift and accurate assessment of the steel coil's chemical composition. On the other hand, LIBS entails focusing a laser beam onto the steel coil's surface, generating a high-temperature plasma. The plasma emits light, which is subsequently collected and analyzed using a spectrometer. This emitted light contains characteristic atomic and ionic emissions, allowing for the identification and quantification of various elements present in the steel. LIBS is also a non-destructive technique, providing real-time results and requiring minimal sample preparation. Both XRF and LIBS offer multiple benefits in terms of speed, non-destructiveness, and user-friendliness for inspecting the chemical composition of steel coils. These spectroscopic techniques play a vital role in quality control and assurance, ensuring that the steel meets the necessary specifications and standards for diverse industrial applications.
Q:How is the critical temperature of structural steel affected by fireproofing? What temperatures can fireproofed structural steel withstand?
I didn't know they fire proofed steel. Usally they would just use a steel with a higher melting point.
Q:If you keep it dry and clean, what steel will last the longest over the years with continued use and sharpening?
The one that you keep on a mount over the fireplace and never use.
Q:What are the common coil grades available for steel coils?
There are several common coil grades available for steel coils, each with its own specific properties and applications. Some of the most commonly used coil grades include: 1. Hot Rolled Coils (HRC): This grade is produced by heating a slab of steel above its recrystallization temperature and then rolling it into a coil. HRC coils are known for their excellent weldability and formability, making them suitable for a wide range of applications such as construction, automotive manufacturing, and general engineering. 2. Cold Rolled Coils (CRC): These coils are produced by further processing hot rolled coils through cold reduction, which involves passing the steel through a series of rollers at room temperature. CRC coils have superior surface finish and dimensional accuracy, making them ideal for applications that require a smooth and uniform appearance, such as automotive body panels, appliances, and electrical equipment. 3. Galvanized Coils (GI): Galvanized steel coils are created by coating regular carbon steel coils with a layer of zinc through a hot-dip galvanizing process. This provides excellent corrosion resistance, making GI coils suitable for outdoor applications like roofing, fencing, and structural components. 4. Stainless Steel Coils: Stainless steel coils are manufactured from a variety of grades, with the most common being austenitic (such as 304 and 316) and ferritic (such as 430). Stainless steel coils offer excellent corrosion resistance, high temperature resistance, and aesthetic appeal, making them widely used in industries like food processing, chemical processing, and architecture. 5. Electro-galvanized Coils (EG): Electro-galvanized coils are similar to GI coils, but the zinc coating is applied using an electrolytic process instead of hot-dipping. EG coils have a thinner and smoother zinc layer, making them suitable for applications that require a brighter and more aesthetic appearance, such as automotive parts, appliances, and decorative items. These are just a few of the common coil grades available for steel coils. The selection of the appropriate grade depends on factors such as the intended application, required mechanical properties, and desired aesthetics. It is important to consult with steel suppliers or industry experts to determine the most suitable coil grade for a specific application.
Q:How do steel coils compare to other types of metal coils?
Steel coils are generally considered superior to other types of metal coils due to their exceptional strength, durability, and versatility. Steel coils have excellent resistance to corrosion, heat, and impact, making them suitable for various applications ranging from construction and automotive industries to manufacturing and packaging sectors. Additionally, steel coils exhibit excellent formability and can be easily shaped and molded into different shapes and sizes, offering greater flexibility and customization options.
Q:How are steel coils used in the manufacturing of braking systems?
Steel coils are used in the manufacturing of braking systems as they are commonly used to make brake pads and brake rotors. Steel coils are processed and shaped into the required forms to create these essential components, which play a crucial role in the braking system's functionality and performance.
Q:The strip tower height
Defects: cold-rolled steel sheet (coil)
Q:What are the main steel coil producing countries?
The main steel coil producing countries are China, Japan, India, the United States, and Russia.
Q:What are the different methods of testing steel coils for quality control?
Steel coils undergo various methods for quality control testing to ensure they meet the necessary specifications and standards. These methods encompass visual inspection, dimensional measurement, hardness testing, tensile strength testing, chemical analysis, coating thickness measurement, surface roughness measurement, ultrasonic testing, and magnetic particle inspection. Visual inspection is the most fundamental technique, involving a thorough examination of the coils for surface defects like scratches, dents, or irregularities. This method enables the identification of visible defects in the material. Dimensional measurement, on the other hand, utilizes tools such as calipers, micrometers, or laser measuring devices to evaluate the dimensions of the steel coils. The measurements are compared against specified tolerances to ensure they meet the required standards. To assess the resistance of the steel coils to indentation or penetration, hardness testing is performed. This examination helps evaluate the material's strength and durability. Common hardness testing methods include Rockwell, Brinell, and Vickers hardness tests. Tensile strength testing measures the maximum tensile stress a steel coil can endure before breaking or deforming. This test helps determine the material's strength, elasticity, and compliance with the required specifications. Chemical analysis is crucial in testing the composition of the steel coils to verify the presence of specific elements in the desired amounts. This ensures that the coils are made from the correct grade of steel and comply with the required chemical composition standards. In cases where the steel coils have a protective coating, it is vital to measure the thickness of the coating. Non-destructive testing methods like magnetic induction or eddy current testing are typically employed for this purpose. The coating thickness is compared against the specified requirements to ensure it provides adequate protection. Surface roughness testing evaluates the smoothness or roughness of the steel coil's surface using instruments like profilometers or roughness testers. This testing method guarantees that the coils meet the required surface finish standards. Ultrasonic testing utilizes high-frequency sound waves to detect internal defects like cracks, voids, or inclusions within the steel coils. This non-destructive testing method provides valuable information about the structural integrity of the coil. Magnetic particle inspection is employed to identify surface and near-surface defects in steel coils. By applying magnetic particles to the surface and detecting any magnetic leakage caused by defects using magnetic sensors, this technique effectively detects cracks and other surface abnormalities. By combining these testing methods, manufacturers ensure that the steel coils produced meet the necessary quality standards and are suitable for their intended applications.

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