Hot Sale CRC Cold Rolled Steel Coil for Construction

Hot Sale CRC Cold Rolled Steel Coil for Construction

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Description:

Surface Treatment:Polished

Certification:ISO, SGS, BV, RoHS, IBR

Technique:Cold Rolled

Standard:ASTM, JIS, GB, AISI, DIN, BS

Application:Container Plate

Edge:Mill

Stock:Not Stock

Steel Grade:Q195

Export Markets:Global

Additional Info.

Trademark:DTIC STEEL

Packing:Coils&Strips

Standard:0.16-2.0 THICKNESS

Origin:China

HS Code:72091610

Production Capacity:80000tons

Product Description

Specifications of Cold Rolled Steel Coil/Sheet:
1)Grade: SPCC, SPCD, SPCE, DC01-06, St12, Super deep drawing
2)Standard: JIS G3141-1996, EN 10131-2006, DIN EN 1002
3)Thickness: 0.14mm - 4.0mm
4)Width: 355/600/716/914/1000/1250/1500 (mm) or per customer's request
5)Coil ID: 508mm/610mm or per customer's request

Package of Cold Rolled Steel Tape:
Strapped with min three strapping strips, covered by anti-water paper and plastic film, fixed on the iron or wooden pallets by strapping strips and covered by plastic bag to prevent damage from transportation.

Applications for cold rolled Steel coil:
1) For the further producing of hot dip galvanized steel products
2) Cold rolled Steel Coil: Auto manufacture, Oil drum, Transformer's tank panel, Furniture etc.

Process of Cold Rolled Steel Tape:
Pickling: To clean the dust and rust points on the surface.
Cold Rolling: Digital rolling control system produces minimum thickness tolerance, helps to prevent twist and improve straightness.
Slitting: Precise slitting machinery helps control the best width tolerance and avoid camber or cracker. Also we can make round or sharp edge with additional process and special machines.
Heat treatment: Advanced annealing, tempering and hardening techniques will help to produce proper mechanical property of the products to insure our client's usage with minimum harm to natural environment.

Hot Sale CRC Cold Rolled Steel Coil for Construction

FAQ

1.What's your MOQ?
25MT, it is for one container.
2.Do you have QC teams?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.
3. What's your normal delivery time?
Our delivery time about 10-20days for standard sizes, if you have other requirements like hardness and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.
4.Are the products tested before shipping?
Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day

Q: What are the different types of edge treatments for steel coils?: There are several different types of edge treatments for steel coils, including slit edge, mill edge, and deburred edge. Slit edge is the standard edge treatment, where the coil is slit to the desired width and the edges are left with a rough, jagged finish. Mill edge is a smoother edge treatment that is achieved by cutting the coil using a circular saw, resulting in a cleaner edge. Deburred edge is a further refinement of the mill edge, where the sharp edges are removed through a deburring process, creating a smooth, rounded edge.

Q: What is the difference between regular steel stainless steel? Why does steel rust but stainless wont? Is stainless some kind of alloy or something? Any knowledgeable input would be great. Thanx!: the reagent of choice is toluene-3,4-dithiol.

Q: Ok I have a neodymium magnet, stuck to my fridge holding a old bottle cap opener for my beer it works fine. At the local rummage sale there was a beautiful cap opener my freind was selling for $0.25 she said had never beenUsed it was like 40 years old it is made a stainless steel. The magnet will not stick to it. I don't understand this looked this up and certain steels are not magnetic, I tried a experiment with my compass it don't point north as should it follows the bottle opener as I move it around it. If not magnetic why is this happening? Also tried placing near another neodymium magnet with a pull of about 200 lbs. Not I tiny bit of attraction to the metal. If so why is the tiny magnet in the compass attracted to it. But not a huge powerfull magnet.: That's interesting that it caused deflection in the compass. A lot of stainless steels may be SLIGHTLY magnetic, because they have small amounts of ferrite or alpha-iron in them. Ferrite is one of the crystal phases of steel. It has a body-centered cubic (BCC) structure and it's responsible for the magnetism of ordinary steels. Adding certain elements like nickel, manganese, or molybdenum, changes the crystal structure of the steel to a face-centered cubic (FCC) structure, which is NOT magnetic. This crystal phase is known as Austenite or gamma-iron. However most iron alloys contain some impurities that may cause the steel to be not completely transformed into the FCC austenite phase, small areas remain as ferrite.

Q: What are the common international standards for steel coils?: The common international standards for steel coils include ASTM A653/A653M, EN 10142, JIS G3302, and ISO 3575. These standards provide specifications for the physical and mechanical properties of steel coils, such as the thickness, width, and coating requirements. They ensure consistent quality and compatibility in the global steel industry.

Q: How are steel coils inspected for oil or rust residues using chemical analysis?: Chemical analysis techniques can be employed to inspect steel coils for the presence of oil or rust residues. One widely used method is Fourier transform infrared spectroscopy (FTIR), which involves subjecting a small sample of the steel coil to infrared radiation and analyzing the resulting infrared spectrum. By identifying specific chemical bonds indicative of oil or rust residues, this technique can effectively detect their presence. For oil residue detection, a common approach is to examine the FTIR spectrum for a peak at approximately 2920 cm-1, which corresponds to the stretching vibration of C-H bonds in hydrocarbon chains. The observation of this peak signifies the existence of oil residues on the steel coil. To identify rust residues, the FTIR spectrum is scrutinized for characteristic peaks associated with iron oxide or hydroxide compounds. For instance, the presence of a peak at around 560 cm-1 suggests the presence of iron oxide (FeO) or iron hydroxide (Fe(OH)3). Apart from FTIR analysis, other chemical analysis techniques like X-ray fluorescence spectroscopy (XRF) or energy-dispersive X-ray spectroscopy (EDX) can also be employed. These methods provide information about the elemental composition of the steel coil, enabling the identification of specific elements linked to oil or rust residues, such as carbon or iron. In essence, the chemical analysis of steel coils for oil or rust residues offers a dependable and precise means of ensuring the coils' quality and cleanliness before further processing or utilization.

Q: What are the common methods of slitting steel coils?: There exists a variety of methods for slitting steel coils, each possessing their own distinct advantages and applications. 1. Rotary Shear Slitting: This technique utilizes rotary cutting knives to separate the steel coil. The coil is passed through the rotary shear machine, and the knives make simultaneous cuts along the coil's length. Rotary shear slitting is renowned for its high-speed operation and ability to handle thicker gauge materials. 2. Loop Slitting: Loop slitting involves introducing the steel coil into a looping pit, creating a loop of material. The loop is then pulled through a set of knives that make the cuts. This particular approach is commonly employed for thin gauge materials, providing precise cuts with minimal burr. 3. Drag Slitting: In drag slitting, the steel coil is fed through a series of driven rolls or drag pads, which maintain tension on the material. The coil is then guided through circular knives that perform the slits. Drag slitting is suitable for various steel gauges and offers good accuracy and edge quality. 4. Crush Slitting: Crush slitting entails passing the steel coil through a set of rolls, with one roll being rubber-covered and the other being hard. The rubber roll compresses the material against the hard roll, resulting in the slits. This method is commonly utilized for thin gauge or delicate materials, as it minimizes the risk of edge damage. 5. Laser Slitting: Laser slitting employs a high-powered laser beam to make precise cuts on the steel coil. This method is highly accurate and enables complex slitting patterns and narrow width cuts. Laser slitting is frequently utilized for high-end applications that demand superior edge quality. Each of these methods possesses unique advantages and is selected based on factors such as material thickness, desired edge quality, production speed, and cost considerations. It is crucial to meticulously select the appropriate slitting method to ensure the desired outcome and efficiency in steel coil processing.

Q: How are steel coils stored to prevent damage?: In order to prevent damage and maintain their integrity, steel coils are stored in a manner that is designed to minimize risks. One common approach involves horizontally stacking the coils, which helps evenly distribute the weight and reduces the likelihood of deformation or damage. Additionally, each layer of coils is often separated by wooden or steel dunnage to provide support and prevent shifting during storage or transportation. To protect the coils from harm, they are frequently stored indoors or in covered areas to shield them from exposure to the elements. This precaution serves to prevent rusting or corrosion, which could compromise the steel's quality. In situations where outdoor storage is necessary, weather-resistant tarps or protective coatings may be used to minimize the potential impact of rain, snow, or sunlight. Moreover, it is essential to consider the height at which the coils are stacked in order to avoid applying excessive pressure on the lower coils. To prevent damage, coils are typically stacked in a manner that ensures the weight from the upper layers is evenly distributed across the lower ones. This may involve the utilization of specialized stacking equipment or racks that are specifically designed to handle the weight and dimensions of the coils. In summary, the proper storage of steel coils entails careful attention to weight distribution, protection from the elements, and minimizing contact between coils to prevent damage and preserve their quality.

Q: How are steel coils used in the manufacturing of power generation equipment?: Steel coils are used in the manufacturing of power generation equipment as they are essential for fabricating components like turbine blades, generator frames, and structural supports. These coils are shaped, cut, and molded into various parts, ensuring strength, durability, and stability in power generation equipment.

Q: Can i make holes in iron and steel with somekind of drill bit. All i have is metal drill bits. Mabey like 68 of them but i dont know wich one to use and if they will penetrate.: That's what drill bits are made for. Those for steel and iron will usually be made of high speed steel. What is important, is the sharpening, and of course, the overall condition of the drill bit. If you need to drill a larger hole, it is helpful to drill a small hole first (pilot drilling), then open it out to size. Never use drill bits you intend to drill iron or steel with to drill such as timber! It will ruin them for steel working.