Galvanized Steel Coil with No Spangle in High Quality

Galvanized Steel Coil with No Spangle in High Quality System 1

Galvanized Steel Coil with No Spangle in High Quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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Hot-dip Zinc Coating Steel Building Roof Walls
1.Structure of Hot-Dip Galvanized Steel Sheet Description：

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.

2.Main Features of the Hot-Dip Galvanized Steel Sheet：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images：

Galvanized Steel Coil with No Spangle in High Quality

4.Hot-Dip Galvanized Steel Sheet Specification：

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Galvanized Steel Coil with No Spangle in High Quality

5.FAQ of Hot-Dip Galvanized Steel Sheet ：

We have organized several common questions for our clients，may help you sincerely：

1.How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.How to guarantee the quality of the products？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

3. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-30 days, but the shipment will depend on the vessel situation.

Q: What are the different methods of tempering steel coils?: There exist numerous techniques for tempering steel coils, each possessing unique advantages and disadvantages. Some of the most prevalent techniques include: 1. Air cooling: This method, the simplest and most commonly employed, involves heating the coils to a specific temperature and allowing them to cool naturally in the surrounding air. Although relatively speedy and cost-effective, this technique can result in uneven cooling and may lack precise control over the final properties of the steel. 2. Water quenching: In this approach, the steel coils are heated and then rapidly cooled by immersing them in a water bath. Water quenching provides a swifter and more controlled cooling rate than air cooling, resulting in increased hardness and strength. However, it may also cause heightened distortion and the development of internal stresses in the steel. 3. Oil quenching: Similar to water quenching, this method entails immersing the steel coils in an oil bath to rapidly cool them. Oil quenching offers a slower and more uniform cooling rate in comparison to water quenching, leading to reduced distortion and internal stresses. Nevertheless, it yields slightly lower hardness and strength than water quenching. 4. Salt bath quenching: This technique necessitates immersing the steel coils in a heated bath of molten salt for rapid cooling. Salt bath quenching ensures 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 steel types. 5. Induction hardening: In this method, the steel coils undergo induction heating before being rapidly cooled using air, water, or oil quenching. Induction hardening permits precise control over the heating and cooling process, thereby achieving specific hardness and strength properties in desired areas of the steel. Nonetheless, it demands specialized equipment and is generally employed for specific applications or sections of the steel coils. Ultimately, the choice of tempering method relies on various factors, including the desired properties of the steel coils, the type of steel employed, and the specific requirements of the end application.

Q: I am making a sword of 1060 carbon steel and would like to know how to heat treat it once it's ready, could anyone help please?: Heat treating easy, HA! It is the most critical part of bladesmithing. Done wrong and all those hours of work go up in smoke (or a snap of the steel). You'll need a bucket of oil, preferably one that is deep enough to go in point first. If not you'll have to go in edge first, not recommended on a double edged blade, ok for single edge. You'll need to build a charcoal fire long enough for the blade. You will need to blow air under the fire to get it hot enough, the challenge is getting the heat even. You get the fire going and established, put the blade in turning it back and forth (if you keep turning it in the same direction when it heats up you could work a twist in it). When it starts turning red pull it out and touch it with a magnet, if the magnet sticks put it back. Keep heating and repeating until the magnet no longer sticks. Heat a little more, then quench rapidly point first. Don't let the blade lean to one side as warpage will occur. When it cools enough to touch, check with a file. If the doesn't file cut then you've properly hardened the steel and it's ready for temper. Now comes the really hard part. Grind the scale off carefully,preferably with a side grinder with a flap wheel. I've had hard wheel break freshly hardened blades. After cleaning you'll need to put it in an oven (preferred) or use a torch and carefully heat the blade. Watch the temper colors (oven temp 500-550F) or with the torch as the steel turns colors blue to purple for a double edged weapon. Any warpage that occurs needs to be worked out at temping temp.

Q: What are the main challenges in handling and processing steel coils?: The main challenges in handling and processing steel coils include their large size and weight, which can make transportation and maneuverability difficult. Additionally, the edges of steel coils can be sharp and pose safety risks. Coils also need to be stored in a manner that prevents damage and corrosion. Lastly, processing steel coils requires specialized equipment and techniques to ensure accurate cutting, shaping, and forming, which can be costly and time-consuming.

Q: How are steel coils used in the petrochemical industry?: Steel coils are commonly used in the petrochemical industry for various applications such as manufacturing pipes, tanks, and pressure vessels. They serve as raw materials for fabricating these essential components used in the transportation, storage, and processing of petrochemical products. The strength and durability of steel make it an ideal material for withstanding harsh environments and high-pressure conditions, ensuring the safety and efficiency of petrochemical operations.

Q: How are defects in steel coils detected and resolved?: Defects in steel coils are typically detected through various non-destructive testing methods such as visual inspection, ultrasonic testing, magnetic particle testing, and eddy current testing. Once a defect is identified, it is resolved through processes like grinding, polishing, welding, or cutting out and replacing the affected area. The specific resolution method depends on the type and severity of the defect, ensuring that the steel coils meet the required quality standards before further processing or usage.

Q: I beat fallout 3 and i downloaded broken steel expansion. I have no idea how to get to broken steel in other words i do not know how to start playing it.: This Site Might Help You. RE: how to start fallout 3 broken steel? I beat fallout 3 and i downloaded broken steel expansion. I have no idea how to get to broken steel in other words i do not know how to start playing it.

Q: How are steel coils used in the manufacturing of automotive suspension systems?: Steel coils are used in the manufacturing of automotive suspension systems as they provide the necessary support and flexibility to absorb shocks and vibrations. These coils are typically placed between the vehicle's frame and the axle, allowing the suspension to compress and rebound when encountering bumps or uneven terrain. By absorbing and distributing the impact forces, steel coils ensure a smoother and more comfortable ride for the passengers while also enhancing the vehicle's stability and handling capabilities.

Q: What are the common coil processing equipment used in the industry?: Some common coil processing equipment used in the industry include coil slitting machines, coil winding machines, coil straighteners, coil feeders, and coil cradles. These machines are used to cut, shape, and feed metal coils in various manufacturing processes.

Q: Can steel coils be used in outdoor applications?: Yes, steel coils can be used in outdoor applications. Steel is known for its durability and resistance to harsh environmental conditions, making it suitable for outdoor use. Additionally, steel coils are often coated or treated to further enhance their corrosion resistance, making them well-suited for various outdoor applications such as construction, automotive, and manufacturing industries.

Q: What are the guidelines for handling damaged steel coils?: The guidelines for handling damaged steel coils typically involve inspecting the damage, assessing its severity, and determining if the coil is still safe to handle. If the damage is minor, it may be possible to repair or reinforce the coil. However, if the damage is extensive or compromises the structural integrity of the coil, it is recommended to contact a professional for further evaluation and potential disposal. Additionally, following proper safety protocols, such as wearing protective gear and using equipment suitable for handling heavy loads, is crucial when dealing with damaged steel coils.

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