Cold Rolled Steel in Sheets for Galvanizing
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Product Name | Cold Rolled Sheet Coil |
Material | SPCC/SPCD/SPCE/DC01/ST12/ ST14/SPCD/DC03/DC04 ect. |
Grade Standard | JIS G3302, EN10142, ASTM653, ASTM95 |
Thickness | 0.15-3.5mm |
Width | 600mm-1500mm |
Coil ID | 508-610mm |
Coil OD | max 1500mm |
Weight | 3-10 Tons |
Tolerance | Thickness tolerance:+/-0.02mm; Width tolerance:+/-5mm |
Surface | No-skin passed or Skin passed, Tensile leveled |
Surface Treatment | Chromate/Unchromate passivation, fingerprint resistant treatment, oiled/unoiled |
Annual Output | 350,000MT |
Application | Construction, hardware, home applicances, interior decoration |
Classification | Designation | Characteristics | Main applications |
Commercial quality | SPCC SPCCT | Commercial quality suitable for bending fabrication and simple forming; this is the type in greatest demand. | Refrigerators, cabinets, power distribution baords and drums. |
Drawing quality | SPCD | Drawing quality second only to that of SPCEN. Excellent uniformity. | Automobile floor and roof panels. |
Deep-drawing quality | SPCE SPCF | Deep-drawing quality.With metallurgically controlled grain size, it retains its beautiful finish even after being deep-drawn. | Automobile fenders and quarter panels |
Extra deep-drawing quality | SPCG | Extra-low-carbon steel sheets with highest workability | Automobile internal panels and deep-drawn parts |
- Q:What are the different types of steel coil surface defects?
- There are several different types of steel coil surface defects that can occur during the manufacturing or handling process. Some of the common types include: 1. Rust: Rust is a common surface defect that occurs when the steel coil is exposed to moisture or oxygen. It appears as a reddish-brown discoloration on the surface of the coil. 2. Scratches: Scratches are superficial marks that can occur during handling or transportation of the steel coil. They can vary in depth and severity, ranging from light surface scratches to deep gouges. 3. Stains: Stains are another type of surface defect that can occur due to exposure to chemicals or other substances. They can appear as discolored patches on the surface of the coil, and may be difficult to remove. 4. Roll marks: Roll marks are impressions or indentations that can occur during the rolling process. They are caused by uneven pressure or misalignment of the rolls, and can appear as lines or patterns on the surface of the coil. 5. Edge wave: Edge wave is a defect that occurs when the edges of the coil are not perfectly flat. It can cause the edges to appear wavy or uneven, and may affect the overall appearance and performance of the coil. 6. Oil spots: Oil spots are surface defects that occur when oil or lubricants used in the manufacturing process are not properly removed. They can appear as dark spots or patches on the surface of the coil, and may affect the adhesion of coatings or paints. 7. Pitting: Pitting is a defect that appears as small, shallow depressions or pits on the surface of the coil. It can be caused by factors such as corrosion, uneven cooling, or impurities in the steel. 8. Holes: Holes are more severe surface defects that can occur due to a variety of reasons, such as corrosion, mechanical damage, or manufacturing errors. They can range in size and can significantly affect the structural integrity of the coil. It is important to address these surface defects promptly to ensure the quality and performance of the steel coil. Regular inspections, proper handling, and appropriate surface treatments can help minimize the occurrence of these defects.
- Q:Want to construct a patio cover approx. 20 feet long. Only want to use a 6x6 or 8x8 post at each end. What size steel i-beam would I have to use to carry the load???
- consult your local building for the area design loads including, live dead and wind.many local steel supp;iers can design it for you.
- Q:How are steel coils used in the manufacturing of automotive hoods?
- Steel coils are used in the manufacturing of automotive hoods as they are shaped and formed into the desired hood design. These coils are processed through various stages such as cutting, stamping, and welding to create the hood's structure. The strength and durability of steel make it an ideal material for automotive hoods, ensuring they can withstand impacts and provide protection to the engine compartment.
- Q:How are steel coils inspected for thickness using ultrasonic testing?
- Steel coils can be inspected for thickness using ultrasonic testing, which is a non-destructive testing method. In this process, a handheld ultrasonic thickness gauge is used to measure the thickness of the steel coil. The ultrasonic thickness gauge emits high-frequency sound waves that travel through the steel coil. These sound waves bounce back from the backside of the coil, creating an echo. The time taken for the echo to return to the gauge is measured and used to calculate the thickness of the coil. The gauge consists of a transducer that emits the sound waves and a receiver that detects the echoes. The transducer is placed on the surface of the coil, and a coupling gel or oil is used to ensure a good acoustic contact between the transducer and the steel surface. The transducer emits a short burst of sound waves, which penetrates through the steel coil and reaches the backside. When the sound waves encounter any changes in the thickness of the coil, such as defects or variations, they get reflected back to the transducer. The receiver detects these echoes, and the time between the emission and reception of the sound waves is measured. Using the known speed of sound in steel, the time taken for the sound waves to travel through the coil and back can be converted into a thickness measurement. This provides an accurate assessment of the thickness of the steel coil at various points. Ultrasonic testing is a reliable and efficient method for inspecting the thickness of steel coils. It allows for quick measurements without damaging the material, making it suitable for quality control and ensuring compliance with manufacturing specifications.
- Q:How are steel coils cut into smaller sizes?
- Steel coils can be cut into smaller sizes using various methods, depending on the desired dimensions and quantities. One common method is called slitting, which involves passing the coil through a set of circular blades. These blades make multiple cuts simultaneously, creating narrower strips of steel. Slitting is often used to produce narrow coils or strips for specific applications such as automotive parts or electrical components. Another method is called shearing, which involves using a straight blade to cut the coil into smaller lengths. This method is typically used when precise dimensions are required, such as for manufacturing flat sheets or plates. Shearing can be done manually or using automated machinery. Additionally, some steel coils can be cut using laser or plasma cutting techniques. These methods allow for more flexibility in terms of shape and size, as they can create intricate cuts or contours. Laser or plasma cutting is commonly used when specific shapes or profiles are needed for applications like construction or fabrication. Overall, the process of cutting steel coils into smaller sizes involves various techniques such as slitting, shearing, laser cutting, or plasma cutting. The choice of method depends on factors such as the desired dimensions, quantities, and specific requirements of the end product.
- Q:Want to get stainless steel sink. I want quality, durability, quiet, etc. Any suggestions??
- One part of our home is the kitchen, which is usually one of the busiest parts of the home. And part of it is the kitchen sink; as you look at the sink, you can hardly tell how much work is done in the sink. And in our daily activities, most of us use our sink in our own personal needs. Most of the time, we wash our face and clean our clothes, shoes and anything that needs to be washed in our sink. With this kind of job that the sink is going through in its everyday life, sink must be tough enough to take all the pressure of its job. Ordinary sink will not last long when it is use regularly. It may acquire rust, scratches and dent as we have use it in a regular basis, this is why we need to look for a sink that can manage to handle different usage and tasks in our home. In choosing a sink for our home, we must consider the quality and not the price alone. Stainless steel sink is easy to clean; stain and rust are needed not to worry because stainless steel sink is proven a rustproof material. But of course proper care for the sink should always be taken care of to make use of the sink for a very long time. In shopping for a sink, it can be hassle knowing that stainless steel sink is made of heavy material. And the good news is that stainless steel sink can be bought online. You can shop through the internet and you can have the freedom to choose a sink that will fit your kitchen.
- Q:What are the common coil loading and unloading techniques?
- Some common coil loading and unloading techniques include using cranes or forklifts to lift and place the coils onto trucks or storage racks, using coil cars or transfer cars to move the coils within a facility, and using coil handling equipment such as coil grabs or C-hooks to safely grip and manipulate the coils during the loading and unloading process.
- Q:What are the different methods of surface treatment for steel coils?
- There are several different methods of surface treatment for steel coils, each with its own benefits and applications. Some of the most common methods include: 1. Hot-dip galvanizing: This is a process where the steel coil is immersed in a bath of molten zinc, which forms a protective coating on the surface. Hot-dip galvanizing provides excellent corrosion resistance and is commonly used in outdoor applications such as roofing, fencing, and automotive parts. 2. Electro-galvanizing: In this method, a thin layer of zinc is electroplated onto the surface of the steel coil. Electro-galvanizing offers similar corrosion resistance as hot-dip galvanizing, but with a thinner coating. It is often used in applications where a smooth and aesthetically pleasing finish is desired, such as appliances, electrical equipment, and automotive components. 3. Powder coating: Powder coating involves applying a dry powder to the surface of the steel coil, which is then cured under heat to form a durable and protective layer. This method provides excellent resistance to chipping, scratching, and fading, making it suitable for a wide range of indoor and outdoor applications. 4. Painting: Steel coils can also be treated with conventional liquid paint coatings, which provide both protection and aesthetic appeal. Paint coatings can be customized to meet specific requirements such as corrosion resistance, UV protection, or chemical resistance. They are commonly used in industries such as construction, automotive, and appliances. 5. Pickling and oiling: This method involves removing any scale or rust from the surface of the steel coil by dipping it in an acid solution (pickling), followed by a coating of oil to prevent reoxidation. Pickling and oiling are typically used for temporary corrosion protection during storage and transportation of steel coils. 6. Pre-painted coatings: Steel coils can be coated with pre-painted finishes at the manufacturing stage. Pre-painted coatings are applied in a continuous process, where the steel coil is passed through a coating line, and a layer of paint is applied. This method provides a wide range of colors and finishes, making it popular in the construction, automotive, and appliance industries. These are just a few of the methods commonly used for surface treatment of steel coils. The choice of method depends on factors such as the desired level of corrosion resistance, aesthetics, environmental conditions, and the specific application requirements.
- Q:Which is more reactive? Zinc or Steel? And why?
- Zinc. Steel is an alloy consisting mostly out of iron, In the reactivity seris, zinc is more reactive than iron. Therefore, zinc is more reactive than steel
- Q:How does the steel coil market vary regionally?
- The steel coil market varies regionally based on factors such as demand, production capacity, and market dynamics. Different regions have different levels of industrial development and infrastructure, which can affect the demand for steel coils. Additionally, variations in raw material availability, labor costs, and government policies also contribute to regional differences in the steel coil market. For example, developing regions may have higher demand for steel coils due to infrastructure projects, while mature markets may focus on specialized steel coil products for specific industries. Overall, regional variations in the steel coil market reflect the unique economic and industrial characteristics of each region.
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Cold Rolled Steel in Sheets for Galvanizing
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 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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