RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 28000 m.t./month
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Structure of RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
Description of RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
Prepainted Rolled steel Coil is a kind of coated steel coil/sheet. With the cold rolled steel of different strength and thickness as substrate, it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating, Al accounts for about 55%, Si 1.6%, while the remaining is Zn. Aluminum zinc coils enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative.
Main Feature of RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
1.Corrosion resistance: It mainly depends on the aluminum protection. When the zinc being worn, the aluminum will form a dense layer of aluminum oxide, resist corrosion material to prevent further corrosion inside.
2. Heat resistance: Aluminum zinc alloy steel sheet has excellent heat resistance, can withstand high temperatures over 300 centigrade, and is similar with aluminized steel high temperature oxidation resistance. It often used in chimney pipes, ovens, fluorescent lighting device and the device cover.
3. Heat reflective: Galvanized steel plate heat-reflective high rate is twice as galvanized steel, often used to make insulation materials.
4. Economy: Because density of 55% AL-Zn is smaller than the density of Zn, so in the same weight and thickness of Galvanized zinc layer, aluminum-zinc steel plate is larger area more than 3% of galvanized steel sheet.
Applications of RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
1. Construction and building: roofing; ventilating duct; handrail; partition panel;etc.
2. Electric appliance: refrigerator; washing machine; refrigerator; DVD;etc.
3.Transportation: oil tank; gas tank;road sign; etc.
4.Agriculture:barn; etc.
5.Others:vending machine; game machine; auto parts etc.
Specifications of RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
Product | RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing |
Material Grade | SGCC / SGCH / DX51D+AZ, etc |
Thickness | 0.2-3.0mm |
Width | 600-1500mm |
Tolerance | Thickness: +/-0.02mm , Width:+/-2mm |
Zinc-coating | AZ40-150g/m2 |
Technique | Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume |
Surface | Dried, Chromated, Unoiled |
Spangle | Regular spangle , small spangle, zero spangle |
ID | 508MM 610MM |
Coil weight | 25MT max |
Export package | Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed |
FAQ of RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
We have organized several common questions for our clients，may help you sincerely：
1. What is the minimum order quantity ?
Our MOQ is 50mt for each color. And we could give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your can offer the better price we can provide.
2. How long can we receive the product after purchasing?
Usually within thirty working days after received buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15- 25 days, but the shipment will depend on the vessel situation.
3. 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.
- Q: How are steel coils processed for slitting or edge trimming?
- Steel coils are processed for slitting or edge trimming by first being unwound from the coil and passed through a series of rollers to ensure a smooth and uniform surface. The coil is then cut into narrower strips using a slitting machine or trimmed along the edges to remove any imperfections or excess material. This process helps create precise and customized steel strips that can be used for various applications.
- Q: What are the typical lead times for ordering steel coils?
- Lead times for ordering steel coils can vary based on factors such as coil type, size, supplier capacity, and market conditions. On average, lead times range from a few weeks to several months. When it comes to standard-sized steel coils readily available in the market, lead times are generally shorter. This is because suppliers keep stock of these commonly used sizes to meet immediate customer demands. However, transportation and logistics can still impact lead times. For custom-made or non-standard steel coils, lead times tend to be longer due to additional processes like cutting, shaping, or coating. Production time can range from a few months to six months or more, depending on the complexity of specifications and supplier capabilities. External factors like market demand and raw material availability can also affect lead times. During high demand or supply chain disruptions, suppliers may need to adjust production schedules, leading to extended lead times. To determine accurate lead times, it is recommended to contact specific suppliers or manufacturers. They can provide the most up-to-date information based on your requirements and current market conditions.
- Q: I want to build an indoor riding arena, should I go for Steel ones.
- Though okorder /.. You can also have a look!!
- Q: I want to anodize steel using heat. some steel turns gray instead of coloring when I heat it up using a torch.
- Steel doesn't anodize in the sense that aluminum and some other metals do. However, it can be heat-colored. The trick is to clean the surface first (it must be oxide free), then heat gently until the colors appear. These are called temper colors in steel. They are due to a thin adherent layer of oxide that forms and thickens as temperature is increased. They are quite temperature dependent. As the steel is heated, the first color to appear is pale yellow. This will progress through darker yellows, browns, purples, and blues as the temperature rises. Above blue, the oxide becomes the gray/black color you are apparently getting - this is the result of heating too fast and too hot. See the chart at the site below for colors in plain carbon steel. Note that the temperatures are pretty low - It all starts around 400 F and if you go above 600 F the show's all over.
- 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: How are steel coils processed for cold rolling or hot rolling?
- Steel coils are processed for cold rolling or hot rolling through a series of steps. For cold rolling, the steel coil is first uncoiled and then cleaned to remove any dirt or impurities. It is then passed through a series of rollers to reduce its thickness and improve its surface finish. On the other hand, for hot rolling, the steel coil is heated to high temperatures and then run through a set of rollers to reduce its thickness and shape it into the desired form. Both processes involve careful control of temperature, pressure, and speed to achieve the desired properties and dimensions of the steel.
- Q: What are the different types of steel coil recoiling methods?
- There are three main types of steel coil recoiling methods: slit edge recoiling, mill edge recoiling, and oscillated recoiling.
- Q: How are steel coils inspected for paint adhesion?
- Various methods and techniques are utilized to inspect the adhesion of paint on steel coils. One commonly employed method is the tape test, which involves pressing adhesive tape onto the painted surface and swiftly removing it. The amount of paint that is lifted off by the tape is then examined to assess the adhesion. If the paint adheres well to the steel, only a minimal amount of paint will be removed. Another method employed is the crosshatch adhesion test. This test entails making parallel cuts on the painted surface using a sharp blade, creating a crosshatch pattern. A piece of adhesive tape is then applied over the cuts and rapidly pulled off. The evaluation of the paint that is removed from the crosshatched area determines the adhesion. Furthermore, a visual inspection is frequently conducted to evaluate the overall appearance and adhesion of the paint. Inspectors search for any indications of cracking, peeling, or bubbling, which may indicate poor adhesion. They also check for any areas where the paint may have chipped or flaked off. Moreover, various laboratory tests can be conducted to assess the paint adhesion on steel coils. These tests may include techniques like the pull-off test, where a specialized device is used to measure the force required to remove a small section of the paint from the surface. Other tests may involve subjecting the painted surface to extreme temperature or humidity conditions to assess the paint's performance under different environmental factors. In summary, a combination of visual inspections, tape tests, crosshatch adhesion tests, and laboratory tests are employed to thoroughly inspect steel coils for paint adhesion. These tests ensure that the paint adheres effectively to the steel surface, resulting in a durable and long-lasting finish.
- Q: What is the maximum diameter of a steel coil?
- The maximum diameter of a steel coil can vary depending on multiple factors such as the type of steel, coil weight, and the specific dimensions required by the manufacturer. However, in general, steel coils can range in maximum diameter from a few feet to several meters.
- Q: Why do we galvanise steel? Galvanised steel is steel coated with zinc.
- We galvanize steel to protect and prevent steel from rusting or corrosion. Rusting, for the most part is a layman's term that has been used exclusively to describe the chemical OXIDATION reaction of steel or iron with oxygen forming a reddish brown substance called rust. Zinc metal coating also oxidizes but does not form the reddish brown rust. Instead, it forms an oxide, just like the rust, which is iron oxide. The protection created by zinc is because it is more reactive to oxidizers, than steel or iron. Thus, the oxidizer will react with Zinc first before it will react with Iron, hence protecting iron. If the zinc is fully reacted then iron is next. BUT, the zinc oxide formed on the surface of the steel or iron is no longer reactive to oxygen and also creates a good physical barrier so that oxygen will not have chance to even have contact with the underlying steel. Isn't that neat! Here is chemistry at one of its useful best.
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RAL Scale Z65 Prepainted Rolled Steel Coil for Construction Roofing
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 28000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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