Galvanized Steel Sheet/ Coil with Best Quality China

Galvanized Steel Sheet/ Coil with Best Quality China System 1

Galvanized Steel Sheet/ Coil with Best Quality China System 2

Galvanized Steel Sheet/ Coil with Best Quality China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 10000 m.t./month

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镀锌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 Sheet/ Coil with Best Quality China

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:

Processability	Yield strength	Elongation %	Elongation %	180°cold-bending
Common PV	-	270-500	-	d=0,intact,no zinc removal
Mechanical interlocking JY	-	270-500	-	d=0,intact,no zinc removal
Structure JG	>=240	>=370	>=18	d=0,intact,no zinc removal
Deep drawn SC	-	270-380	>=30	d=0,intact,no zinc removal
EDDQ SC	-	270-380	>=30	d=0,intact,no zinc removal

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 is the minimum thickness of a steel coil?: The specific grade and type of steel being used, along with the manufacturing process, can cause the minimum thickness of a steel coil to vary. Generally, a steel coil is typically about 0.001 inches (0.0254 millimeters) thick. It is worth mentioning that this value is a general rule and may change depending on the industry's or application's specific requirements and standards.

Q: Is condensation on steel caused from water being pulled out or is the condensation formed from the air around the steel object?: Condensation forms when temperatures vary 'quickly'. The air itself is what provides the moisture. There you go.

Q: For some reason, if you rub iron oxide or lodestone (both very crumbly, dark, mineral-like materials) into soft, unhardened steel, their particles actually get stuck into the surface of the steel (that is, darkening it). My question is, how does this work? How come iron oxide and lodestone can get stuck, and how come other materials (like silicone carbide, for example) do not?My second question is, are there any materials that can get stuck into steel, that is also blue in color, and how would I best obtain it?: Funny! 100!

Q: What is the standard length of steel coils?: The standard length of steel coils can vary depending on the specific industry and application. However, common standard lengths range from 1000 to 6000 millimeters or 3 to 20 feet.

Q: When steel is cast, does it become weaker/more brittle or anything of this nature? what are the side effects of steel casting on the steel itself?How can you correct these?: It contains too many air bubble spacing and too many impurity that make it easily to be broken apart. Melt it down again with high heat to remove most impurity, after this process,it becomes iron.

Q: What are the different types of steel coil treatments?: Enhancing the properties and performance of steel coils involves various types of treatments. The treatments include: 1. Heat treatment known as annealing. It involves heating the steel coil to a specific temperature and gradually cooling it. This treatment alleviates internal stresses, enhances ductility, and boosts the overall strength of the coil. 2. Chemical treatment called pickling. It entails submerging the steel coil in an acid or chemical solution to eliminate impurities, scale, and rust from the surface. This treatment enhances the surface finish and cleanliness of the coil. 3. Application of a protective coating such as oil. A thin layer of oil or another protective substance is applied to the surface of the steel coil. This treatment prevents corrosion, improves lubricity, and safeguards the coil during storage and transportation. 4. Galvanizing, a process that involves coating the steel coil with a layer of zinc. This protective layer shields the coil from corrosion, creating a barrier between the steel and the surrounding environment. It ensures long-term durability and resistance to rust. 5. Tempering, a heat treatment process that includes heating the steel coil to a specific temperature and swiftly cooling it. This treatment enhances the toughness and strength of the coil, making it more resistant to impact and deformation. These are just a few instances of the various types of steel coil treatments commonly employed. Each treatment has its own unique purpose and advantages, and the choice of treatment will depend on the desired properties and applications of the coil.

Q: I'm a Hobbyist and want to Build my own axial-flow jet engine,can I use steel as the Turbine blades instead of Titanium which I can't get easily?? What about the other parts I can use for...?!: Yes you can use steel but you will want to use super alloys like hastaloy and inconel. These withstand the heat in the combustion areas. These are the actual materials used in these stages. If you only want your engine to have a service life of a few hours a conventional hot work steel like H-13 will probably be OK Blades are investment cast in foundries that carefully control the rate of cooling to create a very uniform grain structure

Q: PLS tell me all Foam Steel Characteristics and use?Thanks: Foam steel [often steel foam] is used in applications that require light weight but high rigidity and strength. Watertight doors on modern ships are often made of foam steel. Pressure doors on aircraft are possible uses. As we keep striving for lighter weights in cars, foam steel might have some useful applications in bodies. There is a technical paper online that is in .pdf format that has a good discussion of the process and characteristics of foam steel.

Q: What are the common methods of recoiling steel coils?: There are several common methods of recoiling steel coils, depending on the specific requirements and preferences of the manufacturer or customer. One common method is known as slitting, which involves cutting the wide steel coil into narrower strips. This is achieved by passing the coil through a set of rotating circular blades that cut the steel into multiple smaller coils with desired widths. Slitting is commonly used to create coils of different sizes for various applications. Another method is called cut-to-length (CTL) recoiling, where the steel coil is cut into specific lengths as per the customer's requirements. This process involves feeding the coil through a straightening and leveling machine, followed by a flying shear that cuts the steel into desired lengths. CTL recoiling is often used in industries where precision and uniformity of steel lengths are crucial, such as construction or automotive. Additionally, there is a method called coil-to-coil recoiling, which involves rewinding the steel coil onto a new coil, with the desired dimensions and properties. This process is commonly used when the original coil needs to be resized, reconditioned, or rerolled for further processing or transportation purposes. Coil-to-coil recoiling is often done using specialized recoiling machines that ensure the proper tension, alignment, and winding of the steel coil onto the new coil. Overall, the common methods of recoiling steel coils include slitting, cut-to-length (CTL) recoiling, and coil-to-coil recoiling. Each method offers its own advantages and is chosen based on factors such as required coil dimensions, precision, efficiency, and the specific needs of the industry or customer.