Cold rolled galvanized steel coil for roofing

Cold rolled galvanized steel coil for roofing System 1

Cold rolled galvanized steel coil for roofing

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 36 m.t.

Supply Capability:: 30000 m.t./month

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Packaging & Delivery

Packaging Detail:	Standard seaworthy export package
Delivery Detail:	25 days after recepit of 30% TT

Specifications

Cold roll galvanized coil
Thickness: 0.14-2.0mm
Width: 600-1250mm
Zinc coating:Z60-275g/sqm
ID coil:508/610

Cold roll galvanized coil

Thickness: 0.14-2.0mm
Width: 600-1250mm
Zinc coating:Z60-275g/sqm

The detailed information:

Commodity	Hot dip galvanized steel coil and sheet
Techinical Standard	JIS 3302 / ASTM A653 / EN10143
Grade	DX51D / DX52D/ DX53D/ S250,280,320GD
Types	Commercial / Drawing / Deep Drawing / Structural quality
Width	600-1250mm
Thickness	0.14-2.0mm
Type of coating	galvanized
Zinc coating	Z60-275g/m2
Surface treament	chromed / skinpass/ oiled/slightly oiled/ dry/ anti-fingerprint
Surface structure	zero spangle / minimized spangle / regular spangle/ big spangle
ID coil	508mm or 610mm
Coil weight	3-8 MT per coil
Package	Properly packed for ocean freight exportation in 20''containers
Application:	Industrial panels, roofing and siding for painting
Price terms	FOB,CFR,CIF
Payment terms	30%TT in advance+70% TT or irrevocable 70%L/C at sight
delivery time	25 days after recepit of 30% TT
Remarks	Insurance is all risks
	MTC will be handed on with shipping documents
	We accept the third party certificatation test

Q: How are steel coils used in the manufacturing of telecommunications equipment?: Steel coils are used in the manufacturing of telecommunications equipment as they serve as a crucial component for the fabrication of various parts and structures. These coils are commonly used to create cabinets, enclosures, and racks that house and protect telecommunications devices such as servers, switches, and routers. Additionally, steel coils are utilized in the construction of antenna towers and other supporting structures, providing the necessary strength and stability for the equipment.

Q: I just bought some cheap earrings from this beauty supply store but they said surgical steel So will they prevent my ears from bleeding / infection ?: Surgical steel is a grade of steel often used in medical appliances like tweezers, forceps, etc. It's generally non-reactive and considered very safe. It doesn't contain any special properties against infection--you still have to observe basic hygiene and clean your piercings properly--but most people can wear surgical steel earrings without a problem. However, if you have a contact allergy to base metals like nickel, surgical steel may cause redness or irritation because of the metals used in it. If cheap rings or necklaces make your skin break out in a rash you should NOT wear surgical steel.

Q: What are the different methods of tempering steel coils?: There are several different methods of tempering steel coils, each with its own advantages and disadvantages. Some of the most common methods include: 1. Air cooling: This is the simplest and most common method of tempering steel coils. The coils are heated to a specific temperature and then allowed to cool naturally in ambient air. This method is relatively quick and cost-effective, but it can result in uneven cooling and may not provide as precise control over the final properties of the steel. 2. Water quenching: In this method, the steel coils are heated and then rapidly cooled by immersing them in a bath of water. Water quenching provides a more rapid and controlled cooling rate than air cooling, resulting in greater hardness and strength. However, it can also lead to increased distortion and the formation of internal stresses in the steel. 3. Oil quenching: Similar to water quenching, oil quenching involves immersing the steel coils in a bath of oil to rapidly cool them. Oil quenching provides a slower and more uniform cooling rate compared to water quenching, resulting in reduced distortion and internal stresses. However, it also produces slightly lower hardness and strength compared to water quenching. 4. Salt bath quenching: This method involves immersing the steel coils in a heated bath of molten salt to rapidly cool them. Salt bath quenching provides an even and controlled cooling rate, resulting in improved hardness and strength compared to air or water quenching. However, it requires specialized equipment and may not be suitable for all types of steel. 5. Induction hardening: In this method, the steel coils are heated using an induction heating process and then rapidly cooled using either air, water, or oil quenching. Induction hardening allows for precise control over the heating and cooling process, resulting in specific hardness and strength properties in desired areas of the steel. However, it requires specialized equipment and is typically used for specific applications or parts of the steel coils. Overall, the choice of tempering method depends on various factors such as the desired properties of the steel coils, the type of steel being used, and the specific requirements of the end application.

Q: What are the challenges faced in the recycling of steel coils?: The recycling of steel coils presents several challenges that must be overcome. To start, the collection and sorting process poses a significant hurdle. Steel coils are often utilized in large-scale industries and construction projects, making it challenging to gather and transport them for recycling purposes. Moreover, steel coils can become mixed with other materials, such as plastic or wood, further complicating the sorting process. Another obstacle is the size and weight of steel coils. Given that steel is a heavy material, handling and processing large coils can be quite difficult. Specialized equipment and machinery may be necessary to efficiently move and separate the coils, thereby increasing the cost and complexity of the recycling process. Additionally, the recyclability of steel coils can be impacted by varying quality. These coils may contain impurities or contaminants, such as oil or paint, that must be eliminated before recycling. Such impurities can compromise the integrity and quality of the recycled steel, making it less desirable for certain applications. Moreover, the recycling of steel coils demands substantial energy and resources. Melting down the steel requires a significant amount of energy, while the transportation and processing of the coils also consume resources and contribute to carbon emissions. Consequently, the environmental friendliness of the recycling process can be diminished. Lastly, the viability of the recycling industry can be influenced by fluctuating market demand for recycled steel coils. The demand for steel products can vary depending on economic conditions and industry trends, making it challenging for recyclers to find buyers for their recycled coils. This can potentially result in stockpiling or disposal difficulties. In conclusion, while recycling steel coils offers environmental benefits and resource conservation, several challenges must be addressed for its successful implementation. These challenges encompass collection and sorting, handling and processing, quality control, energy and resource consumption, as well as market demand.

Q: It seems that steel would be stonger and more stable than wood, fire resistant, and better for the environment, so why are most homes wood-framed rather than steel-framed?: Because it's always been done that way. Never underestimate inertia when asking why new materials/techniques are not adopted. Besides, the cost does not give steel a clear advantage. You can drive a nail anywhere into a stud. With steel, you have to drill your holes precisely.

Q: How can steel coils be recycled?: Steel coils can be recycled by first removing any non-steel materials attached to them, such as plastic or rubber. The coils are then shredded into smaller pieces and sent to a steel mill, where they are melted down and transformed into new steel products. This process helps conserve natural resources, reduces energy consumption, and minimizes waste.

Q: What are the common coil diameters available for steel coils?: The common coil diameters available for steel coils vary depending on the specific industry and application. However, some of the most common coil diameters for steel coils typically range from 24 inches to 72 inches. These diameters are often used in various sectors such as automotive, construction, and manufacturing. It is important to note that the specific coil diameter required may differ based on factors such as the size and weight of the material being coiled, the equipment being used to handle the coils, and the specific requirements of the end-use application.

Q: i need flint and steel. are there common household items i can get the flint and the steel from????: no common flint and steel in the house === you need to buy a Boy Scout - flint and steel fire starter kit === or a BIC lighter ... the other thing is a small jar filled with water [[ capped and water level near the top.]] hold the water-jar over some

Q: How are steel coils used in the manufacturing of construction reinforcement bars?: Steel coils are used in the manufacturing of construction reinforcement bars by being processed through a series of rolling mills. These coils are first uncoiled and then heated to a high temperature, allowing them to be easily shaped and molded into the desired bar shape. The coils are then passed through a series of rollers that gradually reduce their thickness and increase their length. This process gives the steel bars the necessary strength and durability to be used as reinforcement in construction projects.

Q: We all know that when we drop a small steel ball (size 3mm diameter; weight 1.10 grams) and a paper (size 11.7 inches length and 8.3 inches breadth; weight 4.5 grams) from a height. The steel ball will win the race to the ground due to its aerodynamic structure.Now imagine the same steel ball with the same weight converted to the structure similar that of paper. What will be the result? Which object will fall first; steel sheet or paper?: In okorder /... 11.7x8.3 inch paper 97.11 square inches 0.062651488 sq meters at 4.5gm is a non-standard 19 pound bond ledger paper, but that is OK, because at least it is in range. 38 gauge steel sheets are about the thinnest that hold their structure 0.00625 thick 1221 g/m? or, at 11.7x8.3 76.5grams So, with this data at hand we can better visualize the situation. Paper of 0.00625 thick in the size shown is 35# paper 131.68 g/m? 8.25grams Steel is higher in density than paper, so you cannot get the same size and air flow without it being lighter in weight than the steel and the air resistance would be lower for the heavier item, so steel of the same shape and thickness as paper falls faster. Suppose you want paper heavier than steel for the same area, then the thickness increases. Will a steel sheet 0.00625 thick and 11.7x8.3 inch size 76.5gm fall faster or slower than a 9 or 10 times thicker paper sheet? If it was able to hold flat in each type the thicker paper should get more backflow behind it aerodynamically and fall faster than an equal weight thinner steel sheet as my guess, but I don't have those numbers. The steel will always be heavier than the paper for the same exact shape and thickness by about 9x. My answer here is difficult, but the question has some flaws to think about.

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