Cold Rollled steel coils or sheets System 1

Cold Rollled steel coils or sheets

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Specification

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

General Application of Cold Rolled Steel Coil:

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 safety precautions while handling steel coils?: To prevent accidents and injuries when dealing with steel coils, it is crucial to adhere to specific safety measures. Consider the following key precautions: 1. Personal Protective Equipment (PPE): It is essential to wear suitable PPE, including steel-toed boots, safety glasses, gloves, and a hard hat. This protective gear will safeguard against potential hazards like falling objects, sharp edges, and flying debris. 2. Training and Proper Lifting Techniques: Ensure that workers handling steel coils have received thorough training in safe lifting techniques. This involves lifting with the legs, maintaining a straight back, and avoiding twisting motions. By utilizing proper lifting techniques, the risk of back strains and injuries can be minimized. 3. Secure Storage and Stacking: When storing or stacking steel coils, ensure they are placed on a stable and level surface. Employ appropriate storage equipment like racks or pallets to prevent coils from shifting or falling. Stack the coils securely to prevent toppling or collapsing. 4. Inspection and Maintenance: Regularly inspect steel coils for any defects, such as sharp edges, loose bands, or damaged packaging. Avoid handling coils that appear damaged or unstable. Conduct regular maintenance on equipment like forklifts or cranes used for moving the coils to ensure safe operation. 5. Communication and Signaling: Implement clear communication and signaling protocols among workers involved in handling steel coils. This can involve hand signals or radio communication to coordinate movements and prevent accidents, especially in areas with limited visibility. 6. Load Limits and Capacity: Be aware of the load limits and capacity of the equipment used to move steel coils, such as forklifts or cranes. Overloading equipment can lead to instability, tipping, or collapse, thereby increasing the risk of accidents and injuries. 7. Proper Lashing and Securing: When transporting steel coils, employ appropriate lashing and securing methods to prevent movement or falling during transportation. This may entail using straps, chains, or other restraints to keep the coils securely in place. 8. Emergency Preparedness: Establish an emergency plan in case of accidents or injuries. Ensure that workers are trained in first aid and that emergency response equipment, such as fire extinguishers and first aid kits, are easily accessible. By adhering to these safety precautions, the likelihood of accidents and injuries when handling steel coils can be significantly reduced, creating a safer work environment for all individuals involved.

Q: I want to know if it is possible to make regular steel stainless.From what I understand stainless consist of chromium about 10 percent I think.Any way I'm wondering if properties can be added in a process or can this only be possible during actual manufacturing of the steel.And I'm not talking about chrome like stainless steel that's not to shiny.: Ghost rider is sort of right. Yes, if you want to change the bulk composition, you need to melt it to add different elements. However, If you just want to provide some improved corrosion protection (and money is no object) there are all sorts of things that are technically possible that will provide different surfaces with different corrosion characteristics. It depends on exactly what type of corrosion you are worried about. The details also depend, of course, on exactly what regular steel you are talking about. There are hundreds of different commercial steel alloys so you need to be specific. In general, you can galvanize (coat with Zn), electroplate with Ni or Cr or Sn or gold or etc, you can do carburization, ion nitriding, carbo-nitriding, (these are surface hardening technologies which will influence corrosion performance).

Q: I'm currently in an Estimating and Bidding class. I have to estimate two divisions for a multi-million dollar project. The project that I chose is around 6 million dollars and involves constructing a new gas/lighting building. I chose to estimate steel, and my question is, around how much out of the 6 million goes toward just the steel estimate? If it helps, this building is has two floors and is roughly about 100x70 feet. The building not wood construction, but rather steel and brick. How much of that 6 million would go into the steel? I'm not looking for anything exact, just roughly.: It is not clear what stage this project is in. Is it preliminary or has a detailed design been done. It is also not clear if this is only the steel material or does it include the labor as well. A rough guess using a percentage of the total cost is okay if you have historical data to help you. If you have a detailed design then the percentage method should only be used as a check on a detailed cost estimate developed from the plans. If you plan to use numbers provided by someone here on Answers I would hardly call that an estimate.

Q: How are steel coils uncoiled?: Steel coils are typically uncoiled using a mechanical device called a decoiler. The decoiler feeds the steel coil through a set of rollers, which gradually unwinds and straightens the coil, allowing it to be used for various applications.

Q: What are the surface treatments for steel coils?: Steel coils have multiple options for surface treatments, each with a particular purpose and unique advantages. Some popular surface treatments for steel coils are: 1. Hot-dip galvanization: This technique involves submerging the steel coil in molten zinc, resulting in a protective layer of zinc coating on the surface. Galvanization provides outstanding corrosion resistance, making the steel coil suitable for outdoor use in harsh environments. 2. Electro-galvanization: By using an electrolytic process, a thin layer of zinc is deposited onto the steel coil's surface. Electro-galvanization offers good corrosion resistance, although the coating is generally thinner compared to hot-dip galvanization. 3. Pre-painting or pre-coating: Prior to being formed into final products, steel coils can be coated with paints or other coatings. This surface treatment enhances the coil's visual appeal while providing protection against corrosion, weathering, and other environmental factors. 4. Pickling and oiling: This treatment involves immersing the steel coil in an acid solution to remove oxides and scale from the surface. After pickling, the coil is typically coated with oil to prevent rust formation during storage and transportation. 5. Phosphating: Phosphating is a chemical conversion coating process that forms a phosphate layer on the steel coil's surface. This treatment improves the adhesion of subsequent coatings, such as paints or primers, while also offering some corrosion resistance. 6. Organic coatings: Steel coils can be coated with various organic materials, including epoxy, polyester, or polyurethane, to enhance their corrosion resistance and aesthetic appearance. These coatings provide a wide range of colors, textures, and finishes, making them suitable for diverse applications. It is important to consider the intended application, environmental conditions, and desired appearance when choosing a surface treatment for steel coils. Manufacturers and end-users must carefully evaluate these factors to select the most suitable surface treatment for their specific requirements.

Q: How are steel coils used in the manufacturing of agricultural irrigation systems?: Steel coils are used in the manufacturing of agricultural irrigation systems as they are shaped and formed into pipes, tubes, or other components that are essential for transporting water from the source to the fields. The coils provide strength, durability, and corrosion resistance, ensuring that the irrigation system can withstand the harsh agricultural environment and last for a long time.

Q: What are the different types of steel coil slitting techniques?: There are several types of steel coil slitting techniques, including rotary slitting, loop slitting, and oscillating slitting. Rotary slitting involves using circular blades to cut the steel coil into narrower strips. Loop slitting involves creating a loop in the steel coil and then cutting it with straight blades. Oscillating slitting uses a reciprocating blade that moves back and forth to cut the coil into smaller widths.

Q: Hello... I'd like to know where I can find proof of this answer as well please. My own searching didn't come up with anything concrete.I'd like to know how much the ambient temperature inside of a hollow steel tube would rise by if the outside of that tube was exposed to an 1100 degree flame for a period of 3 seconds.If specifics help, they are something along the lines of 3.125 O.D. tube, 0.35 wall thickness. High grade steel, can't be more specific than that sorry.Thanks for any answers!: I cant see how you could solve that when you don’t know the type of steel ( specifically). There are many in the range you have stated. Also volume, respecting the length of the tube and coverage of the exterior heat. Logic tells us however 3 seconds is not very long so next you would need to know are the post factor. if the flame was from say a cutting torch and the tube was 20' in length in an ambient exterior temp of 32deg. We could us known a test and determine the rate at which the heat was spread out through the steel. You can also measure pressure in the tube You can find easily resource material on the amount of energy it takes to raise temp by a factor of one. By testing the pressure of a sealed tube of a given length you can apply the solution in scale to your problem. You can also try sticking your finger in it.

Q: What are the common coil sizes available for steel coils?: The common coil sizes available for steel coils vary, but some standard sizes include 36 inches, 48 inches, and 60 inches in width, with coil lengths ranging from 1000 feet to 5000 feet. However, it is important to note that coil sizes can be customized according to specific requirements and applications.

Q: How are steel coils used in the production of solar panels?: Steel coils are used in the production of solar panels as a crucial component for the frame and support structure. The coils are shaped and cut to size, providing the necessary strength and stability to hold the solar cells and other components securely in place.

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