good cold rolled steel coil / sheet SPCCT-SB
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 5000000 m.t./month
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Characteristics:
1. Commercial quality suitable for bending fabrication and simple forming; this is the type in greatest demand.
2. Drawing quality second only to that of SPCEN. Excellent uniformity.
3. Deep-drawing quality.With metallurgically controlled grain size, it retains its beautiful finish even after being deep-drawn.
4. Extra-low-carbon steel sheets with highest workability
General Application of Cold Rolled Steel Coil:
1. Refrigerators, cabinets, power distribution baords and drums.
2. Automobile floor and roof panels.
3. Automobile fenders and quarter panels
4. Automobile fenders and quarter panels
The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling, kinds of new technology and new process of global cold rolling production have been applied. Therefore the manufacturing, home appliance, automobile etc. Quality of the goods could be guaranteed. The finished product has a variety of excellent capabilities, such as continuous rolling, degreasing, annealing, skin pass, slitting and cut to length line etc. Along with it many rocessing capability and smooth, flat surface. It’s widely used in outdoor and interior decoration, furnishing
- Q: How are steel coils processed for painting or coating?
- Steel coils are typically processed for painting or coating through a series of steps. First, the coils are cleaned to remove any dirt, oil, or rust. This is usually done through a chemical cleaning process or by using mechanical methods such as shot blasting. Next, the coils are pre-treated to enhance adhesion and corrosion resistance. This can involve applying a conversion coating or a primer. Finally, the coils are painted or coated using a variety of methods such as roll coating, spray coating, or electrostatic coating. The specific process depends on the desired finish and application requirements.
- Q: How are steel coils inspected for hardness?
- Various methods are used to inspect the hardness of steel coils, ensuring their quality and suitability for specific applications. The Rockwell hardness test is a common method, involving the use of a diamond or ball indenter pressed into the coil's surface to measure indentation depth. The hardness value is then determined based on this measurement. Another method is the Brinell hardness test, which uses a hardened steel or tungsten carbide ball indenter to create an indentation on the coil's surface. The diameter of the indentation is measured, and the hardness value is calculated using a formula that considers the applied load and indentation diameter. On the other hand, the Vickers hardness test utilizes a pyramidal diamond indenter to create an indentation on the coil's surface. The lengths of the indentation diagonals are measured, and the hardness value is calculated using a formula that takes into account the applied load and diagonal lengths. In addition to these traditional methods, modern technology has introduced non-destructive testing techniques such as ultrasonic testing and eddy current testing. Ultrasonic testing involves transmitting ultrasonic waves through the coil and measuring the time it takes for the waves to return. Changes in the wave pattern can indicate variations in hardness. Eddy current testing, on the other hand, uses electromagnetic induction to detect changes in electrical conductivity, which can be correlated to hardness variations in the steel coil. Overall, steel coils undergo thorough inspection using a combination of traditional and advanced techniques to ensure their hardness meets the required specifications. These inspections are vital in maintaining the quality and dependability of steel products in various industries.
- Q: What are the different types of steel coil loading and unloading methods?
- There are several types of steel coil loading and unloading methods, including coil cradle loading, coil trailer loading, coil car loading, coil transfer by crane, and coil transfer by forklift. Each method has its own advantages and is used based on the specific requirements and capabilities of the loading and unloading equipment.
- Q: my step father bought a big steel drum grill it has steel sheets (very thin) that go inbetween the flame and the food (closer to the flame) with that there the food will not cook, it does not get hot enough????? please help... what should we do
- that steel plate there is to try to keep the grease dripping of the food from making the grill flame up and burning the food. most all quality grills have something similar. you can take the plate out but your going to be prone to flame ups.
- Q: What are the dimensions of steel coils used in the building materials industry?
- The dimensions of steel coils used in the building materials industry can vary depending on the specific requirements of the project. However, common dimensions for steel coils in this industry range from 0.15mm to 3.5mm in thickness and 600mm to 2000mm in width. The length of the coils can also vary, typically ranging from 1000mm to 6000mm.
- Q: The difference between aluminized color steel roll and ordinary color steel roll
- Aluminized color coated sheet is a new type of material produced in China in recent years due to its high end applications. It is often used as an indication of CCLI. It is made of galvanized steel sheet (55% aluminum, 43% zinc and 1.6% silicon), which is more galvanized and more corrosion resistant. It is processed by surface degreasing, phosphating and complexing treatment, and is coated with organic coating.
- Q: How are steel coils inspected for quality assurance?
- Quality assurance for steel coils involves a rigorous process that includes various tests and checks to ensure their quality. Initially, a visual inspection is carried out to identify surface defects like scratches, dents, or rust, ensuring the coils are in good condition and free from obvious flaws. Afterward, a dimensional inspection is performed to verify the coils' dimensions and tolerances. This involves measuring their width, thickness, and length to ensure they meet the specified requirements. Any deviations from the standard dimensions are noted and addressed. Moreover, mechanical testing is conducted to assess the strength and durability of the steel coils. Tensile tests are performed to measure their strength and elasticity, while impact tests evaluate their ability to withstand sudden loads or shocks. Furthermore, chemical analysis is undertaken to determine the composition and purity of the steel. Samples are taken from the coils and analyzed in a laboratory to check for impurities or elements that could affect the quality. To comply with industry standards, non-destructive testing methods like ultrasonic testing or magnetic particle inspection may be used. These methods can detect internal defects or irregularities that may not be visible to the naked eye. Additionally, surface treatment inspections, such as galvanization or coating checks, may be performed to ensure the protective layers are applied correctly and meet the necessary specifications. In summary, the quality assurance process for steel coils includes visual, dimensional, mechanical, chemical, and non-destructive testing methods. These thorough inspections guarantee that the steel coils meet the required quality standards and are suitable for their intended applications.
- Q: What are the different surface finishes of steel coils?
- There are several different surface finishes of steel coils, including hot rolled, cold rolled, galvanized, and coated finishes. Hot rolled coils have a rough and textured surface, while cold rolled coils have a smoother and more refined surface. Galvanized coils are coated with a layer of zinc to protect against corrosion, while coated coils have additional layers of paint or other materials for aesthetic or functional purposes.
- Q: Hey do you know what is Steel Arch Building and how it looks like exactly??
- Typically, okorder /
- Q: How are steel coils inspected for surface defects using non-destructive testing methods?
- Steel coils are inspected for surface defects using non-destructive testing (NDT) methods to ensure their quality and integrity. There are several common NDT methods employed in this process. One of the most widely used methods is visual inspection, where trained inspectors visually examine the surface of the steel coils for any visible defects such as scratches, cracks, pits, or corrosion. This method is relatively simple and cost-effective but is limited to detecting only surface-level defects. Another commonly used NDT method is magnetic particle testing (MT). This method utilizes the principles of magnetism to identify surface and near-surface defects in ferromagnetic materials like steel. A magnetic field is applied to the steel coil, and iron particles are applied to the surface. If there is a defect, such as a crack or discontinuity, the iron particles will concentrate around it, making the defect visible to the inspector. Liquid penetrant testing (PT) is another NDT method used to inspect steel coils for surface defects. In this method, a liquid penetrant is applied to the surface of the coil. The penetrant is drawn into any surface defects by capillary action. After a certain period, excess penetrant is removed, and a developer is applied. The developer draws out the penetrant from any defects, making them visible to the inspector. Ultrasonic testing (UT) is a widely used NDT method that can detect both surface and subsurface defects in steel coils. High-frequency sound waves are transmitted into the steel coil, and the reflected waves are analyzed to identify any abnormalities. This method can detect defects such as cracks, inclusions, and voids that may not be visible to the naked eye. Additionally, eddy current testing (ECT) is another NDT method used for inspecting steel coils. This method utilizes electromagnetic induction to detect surface and near-surface defects. A coil carrying an alternating current is placed near the surface of the coil being inspected. Any changes in the coil's electrical conductivity caused by surface defects are detected and analyzed, allowing the inspector to identify and evaluate the severity of the defects. In conclusion, steel coils are inspected for surface defects using various non-destructive testing methods such as visual inspection, magnetic particle testing, liquid penetrant testing, ultrasonic testing, and eddy current testing. These methods ensure the quality and integrity of the steel coils before they are used in various applications.
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good cold rolled steel coil / sheet SPCCT-SB
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 5000000 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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