Cold Rolled Sheet Coil

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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

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

Production Flow Chart

Specification

1. Thickness: 0.4-2.0mm

2. Width: 900-1250mm

3. Inner Diameter: 508 & 610mm

4. Weight of Steel Coil: 3-15MT

5. Heat Treatment: Annealed + Smoothed

6. Margin Status: EC & EM

7. Surface Quality: FC & FD

8. Surface Treatment: Oiling

9. Surface Status: Bright

Chemical Components

Grade	Chemical Components
Grade	C	Mn	P	S	Alt
St12	≤0.10	≤0.50	≤0.035	≤0.025	≥0.020
St13	≤0.08	≤0.45	≤0.030	≤0.025	≥0.020
St14	≤0.08	≤0.40	≤0.025	≤0.020	≥0.020

Mechanical Properties

1. Yield Strength: ≤320MPa

2. Tensile Strength: ≤370MPa

3. Elongation (L=50mm, b=25mm) When:

(1) Nominal Thickness <0.25mm: 30%

(2) Nominal Thickness 0.25mm-<0.40: 32%

(3) Nominal Thickness 0.40-<0.60mm: 34%

(4) Nominal Thickness 0.60-<1.0mm: 36%

(5) Nominal Thickness 1.0-<1.6mm: 37%

(6) Nominal Thickness >1.6mm: 38%

Q: What are the common applications of hot-dip galvanized steel coils?: Hot-dip galvanized steel coils have a wide range of applications due to their excellent corrosion resistance and durability. Some of the common applications of hot-dip galvanized steel coils include: 1. Construction: Hot-dip galvanized steel coils are extensively used in the construction industry for various applications such as roofing, siding, gutters, and downspouts. The corrosion resistance of these coils makes them ideal for withstanding harsh weather conditions, ensuring long-lasting and low-maintenance structures. 2. Automotive: Hot-dip galvanized steel coils are widely used in the automotive industry for manufacturing parts like body panels, frames, chassis, and structural components. The corrosion resistance and high strength of these coils provide enhanced protection against rust and ensure the longevity of automotive parts. 3. Appliances: Hot-dip galvanized steel coils find applications in the manufacturing of various household appliances such as refrigerators, air conditioners, ovens, and washing machines. The corrosion resistance and aesthetic appeal of galvanized steel make it an ideal choice for these appliances. 4. Agriculture: Hot-dip galvanized steel coils are commonly used in the agricultural sector for building greenhouses, livestock shelters, fences, and irrigation systems. The galvanized coating protects the steel from corrosion caused by exposure to moisture and chemicals commonly found in agricultural settings. 5. Electrical and Telecommunication: Hot-dip galvanized steel coils are utilized in the electrical and telecommunication industries for the production of transmission towers, poles, cable trays, and electrical conduits. The corrosion resistance and high strength of galvanized steel ensure the safety and reliability of these infrastructure components. 6. Transportation: Hot-dip galvanized steel coils are extensively used in the transportation industry for manufacturing trailers, shipping containers, and chassis components. The galvanized coating provides protection against corrosion caused by exposure to road salt, moisture, and various environmental factors. 7. Industrial Applications: Hot-dip galvanized steel coils are employed in various industrial applications such as storage tanks, pipelines, ductwork, and industrial equipment. The corrosion resistance and durability of galvanized steel ensure the integrity and longevity of these structures and equipment. In summary, the common applications of hot-dip galvanized steel coils encompass a wide range of industries, including construction, automotive, appliances, agriculture, electrical and telecommunication, transportation, and industrial sectors. The corrosion resistance, durability, and aesthetic appeal of galvanized steel make it a versatile and widely used material in these applications.

Q: How are steel coils used in the manufacturing of oil and gas equipment?: Steel coils are used in the manufacturing of oil and gas equipment to create various components such as pipes, tanks, and pressure vessels. These coils are shaped, cut, and welded to form the required structures, ensuring strength, durability, and resistance to extreme conditions encountered in the oil and gas industry.

Q: How are steel coils used in the production of power transmission towers?: Steel coils are used in the production of power transmission towers as they are rolled and formed into the required shapes and sizes to create the structural components of the towers. The coils are processed and cut into specific lengths, which are then welded or bolted together to construct the tower sections. The robustness and strength of steel make it an ideal material for transmitting large amounts of electricity over long distances, ensuring the stability and reliability of power transmission towers.

Q: What are the different types of steel coil surface treatments for indoor applications?: There are several different types of steel coil surface treatments that are suitable for indoor applications. These treatments are designed to enhance the appearance, durability, and performance of the steel coil in various indoor environments. Some of the common surface treatments for indoor applications include: 1. Galvanized Coating: This is one of the most popular surface treatments for indoor applications. Galvanizing involves applying a layer of zinc to the steel coil, which provides excellent corrosion resistance and protects the steel from environmental elements. 2. Pre-painted Coating: Pre-painting the steel coil with a specific color or finish is another common surface treatment for indoor applications. This coating not only improves the aesthetics of the steel, but also provides additional protection against corrosion and wear. 3. Powder Coating: Powder coating is a process where a dry powder is electrostatically applied to the steel coil and then cured under heat. This treatment creates a durable and attractive finish that is resistant to chipping, scratching, and fading. Powder coating is available in a wide range of colors and textures, making it a versatile choice for indoor applications. 4. Vinyl Coating: Vinyl coating is a type of surface treatment that involves applying a layer of PVC (polyvinyl chloride) to the steel coil. This coating provides excellent chemical resistance and protects the steel from moisture, abrasion, and UV radiation. Vinyl coating is commonly used in indoor applications where chemical exposure or moisture resistance is a concern. 5. Laminated Coating: Laminating the steel coil involves bonding a thin layer of plastic or other material to the surface of the steel. This treatment enhances the appearance of the steel and provides additional protection against scratches, stains, and fading. Laminated coatings are available in various colors and patterns, making them suitable for indoor applications where aesthetics is a priority. It is important to consider the specific requirements of the indoor application when choosing a steel coil surface treatment. Factors such as corrosion resistance, durability, aesthetics, and budget should be taken into account to ensure the best possible performance and longevity of the steel coil in indoor environments.

Q: Can steel coils be bent or shaped?: Yes, steel coils can be bent or shaped. Steel coils are highly flexible and can undergo various bending and shaping processes to achieve desired forms and configurations.

Q: Will hot dip galvanizing affect the properties of the steel: galvanize a Steel will lose some Small strength bu it will prolong the steel

Q: What are the common thicknesses available for steel coils?: The common thicknesses available for steel coils depend on the specific requirements and applications. However, there are some standard thicknesses that are commonly produced and used in various industries. Generally, steel coils can have thicknesses ranging from 0.005 inches to 0.5 inches or even more, depending on the type of steel and its intended use. For example, in automotive manufacturing, where steel coils are used for body panels and structural components, the common thicknesses can range from 0.5 mm (0.020 inches) to 3 mm (0.118 inches). In the construction industry, where steel coils are utilized for roofing, siding, and structural framing, the common thicknesses can vary from 0.014 inches to 0.062 inches, depending on the specific application and structural requirements. Similarly, in the manufacturing of appliances, such as refrigerators, washing machines, or HVAC systems, steel coils with thicknesses ranging from 0.018 inches to 0.035 inches are frequently used. It is worth noting that these are just some of the common thicknesses, and there can be variations based on the specific requirements of different industries and applications. Additionally, custom thicknesses can also be produced upon request to meet unique needs in various sectors.

Q: Ok.. I was wondering if it's possible for me to recycle baked bean cans (steel)? And if so in Western Australia (that's where I live)?I love baked beans... and I also like skateboarding, so I thought if I kept my baked bean cans, that I could get them recycled somewhere and turn it into something I could skate on (rail, etc.). I'm just curious to know if all this is possible...Cheers. :): Most baked beans are cooked with pork and include a piece in the can. Depending on what kind of vegetarian you are, you could eat them and simply remove the piece of pork, or, Bush's has vegetarian baked beans which are obviously cooked without the meat seasoning. They are very good, and of course beans are an excellent and needed source of protein in a vegetarian diet.

Q: What are the challenges in coil edge trimming for narrow strips?: Coil edge trimming for narrow strips presents several challenges. Firstly, a major hurdle lies in maintaining accuracy and precision throughout the trimming process. It is imperative to achieve an even and smooth trim on narrow strips, requiring a high level of precision. Any deviation from this precision can result in uneven edges or burrs, which ultimately impact the strip's overall quality. Secondly, controlling strip tension poses another challenge. Due to their limited surface area, narrow strips are more susceptible to tension issues. This can lead to problems such as strip breakage or stretching, ultimately affecting the final product's quality. Furthermore, avoiding material waste is a crucial challenge. Narrow strips allow for less margin of error, meaning any mistakes during trimming can result in a significant amount of wasted material. Minimizing material waste is essential for cost-effectiveness and sustainable manufacturing practices. Moreover, maintaining a high production rate can be difficult with narrow strips. The trimming equipment must handle the high speed required for efficient production while still maintaining accuracy and precision. This necessitates the utilization of advanced machinery and technology to ensure smooth and efficient operations. Lastly, the handling and transportation of narrow strips also present challenges. Due to their small size, narrow strips are more prone to damage during handling and transportation. Implementing proper care and handling techniques is vital to prevent any potential damage that could compromise the final product's quality. In conclusion, the challenges in coil edge trimming for narrow strips revolve around precision, tension control, material waste, production rate, and handling. Overcoming these challenges necessitates the use of advanced technology, skilled operators, and meticulous attention to detail throughout the entire process.

Q: A 100 kg solid steel ball with a radius of 5 m is being spun on ice with an angular velocity of 5 rev/s pointed into the ice (clockwise rotation when viewed from above).A student shoots a 10 kg marble at the steel ball. The marble hits the ball along its side as shown with an initial velocity of 5 m/s to the left. If, right after the collision, the final velocity of the marble is 2.5 m/s to the left, what is the angular velocity of the steel ball after the collision?: You need to do conservation of angular momentum about the steel ball's axis. Angular momentum = I.ω The steel ball's initial ω = 5 rev/s = 5*2pi rad/s = 31.4 rad/s The steel ball's moment of inertia I = (2/5)*m*r^2 = 40*25 kg.m^2 = 1000 kg.m^2 The marble's initial ω = v / r where r is the perpendicular distance from the steel ball's axis You need to look at the diagram for this. The marble's I about the steel ball's axis is I = m*r^2 where r is the same as above. (marble is treated as a point mass). Then work out the total initial ang. momentum = final ang. momentum and solve for ω...

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