• Galvanized Cold Rolled Sheet Coil for building use System 1
  • Galvanized Cold Rolled Sheet Coil for building use System 2
  • Galvanized Cold Rolled Sheet Coil for building use System 3
Galvanized Cold Rolled Sheet Coil for building use

Galvanized Cold Rolled Sheet Coil for building use

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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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Brief Introduction

1. Prepainted Galvanized Steel Coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.

2. The base metal for Prepainted Galvanized Steel Coil is HDGI Steel. The finish coats of Prepainted Galvanized Steel Coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.

3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.

4. The color of the Prepainted Galvanized Steel Coil has a very wide selection, like orange, cream-colored, dark sky blue, sea blue, bright red, brick red, ivory white, porcelain blue, etc.

5. The Prepainted Galvanized Steel Coil can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.

Specification

1. Thickness: 0.3-0.8mm

2. Width: 914-1250mm

3. Inner Diameter: 508mm

4. Weight of Steel Coil: 3-15MT

5. Available Dipped Layer: 50-150g/m2

6. Surface Texture: Normal Coated

7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, coat the bottom surface once, and bake the sheet twice.

8. Front Side Paint Thickness: 15-25μm (bottom paint+top paint)

9. Back Side Paint Thickness: 5-10μm

Mechanical Properties

1. Mechanical properties of base metals

Grade

Tensile Test

Yield Strength

MPa

Tensile Strength

MPa

Elongation A80mm % ≥

DX51D+Z

140-350

270-500

22

DX52D+Z

140-300

270-420

26

DX53D+Z

 140-260 

 270-380 

30

2. Common performance of front coating

(1). Thickness: ≥20μm

(2). Pencil Hardness: 2H

(3). 60° specular glossiness of coating: >60

(4). 180°bend: ≤3T

(5). Impact: ≥9J

(6). Salt Fog Resistant: ≥500h

(7). Color difference:<3δe< p="">

 

 

Q:How are steel coils welded together?
Different methods can be employed to weld steel coils together, depending on the specific requirements and the type of steel being used. Electric resistance welding (ERW) is a common method where an electric current is utilized to generate heat in the coils, melting their edges. Pressure is then applied to join them together. ERW is a cost-effective and speedy technique for welding steel coils. Thinner steel coils are often welded using high-frequency induction welding (HFIW). This involves the use of an induction coil to produce an alternating magnetic field, inducing an electric current in the coils. The resistance of the coils to this current generates heat, causing the edges to melt and form a weld. For thicker and heavier steel coils, submerged arc welding (SAW) is commonly employed. This technique utilizes a granular flux and a continuous electrode that is fed into the weld area. The flux melts, creating a protective shield for the weld pool, while the electrode melts to form the weld. SAW is a robust and efficient method for welding steel coils. In addition to these methods, laser welding and gas metal arc welding (GMAW) can also be utilized for welding steel coils. Laser welding offers high precision and speed, while GMAW, also known as MIG welding, utilizes an electric arc between a consumable wire electrode and the steel coils to create a weld. Irrespective of the welding method employed, successful welding of steel coils hinges on proper edge preparation, maintenance of appropriate heat and pressure levels, and the use of correct welding techniques.
Q:I remember my dad saying something about steel toed boots but I forgot =#92; I went and checked out all the stores and got a pair with good ankle support but they also have steel toes. Would this interfere with the shifter or anything? I figure if anything my dirt bike shoes have the steel toes too. Any opinion?
I personally like to feel the shifter, and I've found that I can't feel the shifter as well through steel toed boots. Steel toed boots are designed to protect you in the event of something heavy dropping on your foot - which isn't very likely on a motorcycle. I have also found that in extreme cold that steel toed boots seem to act like a heat sink for your feet - non steel toed boots seem to stay just a little bit warmer. If you're a new rider, a very blunt toe (whether steel or not) can make getting your toes under the shifter a little more difficult, but with some practice and experience, you will get used to it. Honestly, I don't think it really makes all that much difference. All new riders have difficulty with the shifter, and it will take time for you to get used to it either way. I don't think the difference is really even worth going out and buying another set of boots, but yeah, if you were getting your first pair, I would tell you to look for a boot with a toe that is slender and tapered (vs. blunt), and non-steel.
Q:Will a 8mm steel ball fired from a 150lbs crossbow kill small game and if so, from how many yards?
An 8mm steel ball fired from a 150# crossbow is probably going to damage your crossbow. Crossbows shoot arrows (or bolts), NOT ball bearings and, furthermore, a 150# crossbow needs an arrow (or bolt) of about 450 grains in order to be efficient and operate without damaging itself. A 450 grain arrow will kill small game very well and out to a range of about 30 yards. Don't wind up like the guy below... EDIT: Racing Pace Stick - I stand corrected. There are, indeed, tacticool crossbows that shoot ball bearings and they all seem to come straight from Shandong Province, China. Note that these are not implements suited to hunting. Also note that if you shoot an 8mm steel ball out of a 150# draw compound crossbow that IS suitable for hunting, you are probably going to break it.
Q:How are steel coils used in the manufacturing of automotive exhaust systems?
Steel coils are used in the manufacturing of automotive exhaust systems as they provide the necessary strength and durability required for this critical component. These coils are typically shaped and formed into various parts such as pipes, mufflers, and catalytic converters, which are then welded together to create the exhaust system. The steel coils also undergo additional processes like coating or galvanizing to enhance corrosion resistance, ensuring the longevity of the exhaust system.
Q:What are the different methods of stretch leveling steel coils?
There are several methods of stretch leveling steel coils, each with its own advantages and applications. 1. Roller Leveling: This method involves passing the steel coil through a series of rollers that apply pressure to stretch and flatten the material. It is a widely used method for leveling steel coils and offers good control over the leveling process. Roller leveling is suitable for thin and medium gauge steel coils. 2. Tension Leveling: In this method, the steel coil is subjected to high tension forces applied by a set of bridle rolls. The tension helps to elongate and flatten the material, resulting in a level and stress-free coil. Tension leveling is particularly effective for thicker and harder steel coils. 3. Laser Leveling: Laser technology is employed in this method to measure and correct any imperfections in the steel coil. A laser scanner scans the surface of the coil and detects variations, which are then adjusted by a laser beam. Laser leveling offers high precision and is suitable for leveling sensitive and high-value steel coils. 4. Stretcher Leveling: This method involves stretching the steel coil beyond its yield point, which causes the material to permanently deform and eliminate any residual stresses. Stretcher leveling is commonly used for heavy gauge coils and can achieve significant flatness improvements. 5. Tensionless Leveling: As the name suggests, tensionless leveling is performed without applying tension to the steel coil. Instead, hydraulic or pneumatic pressure is used to stretch and flatten the material. This method is suitable for delicate or sensitive steel coils that may be prone to damage under high tension forces. Each method of stretch leveling steel coils has its own advantages, such as control, precision, or suitability for specific types of steel coils. The choice of method depends on factors like the thickness, hardness, and quality requirements of the steel coil, as well as the desired flatness and surface finish.
Q:i recently got an industrial piercing and instead of getting pierced with a metal bar i have a PTFE bar .. i eventually want to put in a metal bar but what kind do i get? whats the difference between a surgical steel and titanium bar?thanks
Titanium Industrial Barbell
Q:What are the factors that affect the price of steel coils?
There are several factors that influence the price of steel coils. Firstly, the cost of raw materials such as iron ore and coal, which are essential for steel production, can significantly impact the price. Additionally, the demand and supply dynamics of steel in the market play a crucial role. Factors like economic growth, construction activity, and infrastructure development can drive up the demand for steel, leading to price increases. On the other hand, if there is excess supply or reduced demand, prices may decrease. Moreover, fluctuations in energy costs, transportation expenses, and currency exchange rates can also affect the final price of steel coils.
Q:What are the dimensions of steel coils used in the household appliance industry?
The dimensions of steel coils used in the household appliance industry can vary depending on the specific application and requirements. However, standard dimensions for steel coils commonly used in this industry range from 0.4mm to 3mm in thickness and 600mm to 1500mm in width. The length of the coils can also vary, typically ranging from a few hundred meters to several kilometers. These dimensions ensure that the steel coils are suitable for various household appliance manufacturing processes, such as forming, stamping, and welding. It is important to note that these dimensions are not fixed and can be customized based on the specific needs of the appliance manufacturer.
Q:Like 49ers. Pittsburgh have long history of steel industry?
www.okorder A basement waterproofing New Jersey contractor is the one that you need to ensure that your entire home's foundation will not get damped with water and to avoid expensive repairs at the same time.
Q:How are steel coils used in the production of metal fencing?
Steel coils are used in the production of metal fencing by being unrolled, cut, and shaped into various fencing components such as posts, rails, and pickets. These coils provide a consistent and high-quality source of steel, ensuring durability and strength in the final fencing product.

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