• Z21 BMP Prepainted Rolled Steel Coil for Construction System 1
  • Z21 BMP Prepainted Rolled Steel Coil for Construction System 2
  • Z21 BMP Prepainted Rolled Steel Coil for Construction System 3
  • Z21 BMP Prepainted Rolled Steel Coil for Construction System 4
  • Z21 BMP Prepainted Rolled Steel Coil for Construction System 5
  • Z21 BMP Prepainted Rolled Steel Coil for Construction System 6
Z21 BMP Prepainted Rolled Steel Coil for Construction

Z21 BMP Prepainted Rolled Steel Coil for Construction

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
30000 m.t./month

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Structure of Z21 BMP Prepainted Rolled Steel Coil for Construction

 Z21 BMP Prepainted Rolled Steel Coil for Construction

Description of Z21 BMP Prepainted Rolled Steel Coil for Construction

1. Prepainted steel coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized or galvalume steel sheets. 
2. The base metals for prepainted steel coil consist of cold rolled, HDGI Steel, electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of prepainted 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 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 steel coils can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.

 Z21 BMP Prepainted Rolled Steel Coil for Construction

 

Main Feature of Z21 BMP Prepainted Rolled Steel Coil for Construction

Galvanized steel sheet(include HDG and EG)
With the features of good corrosion resistance, the products are mainly used in automobile, home appliance, electronics, building and machinery manufacture industries, etc.

Precoated steel sheet
With the features of enviromental protection and good processablility, long lasting surface durability, rich in colors, the products are maily used in building, home appliance and furniture industries, etc.

Electrical steel sheet
Mainly used to manufacture generating equipment, locomotive, industrial motor and home appliance.

 

Applications of Z21 BMP PPGI Prepainted Rolled Steel Coil for Construction

Construction

Manufacture anticorrosion, industrial and civil architecture roof boarding, roof grille

Light industries

Home appliance's case, civil chimney, kitchen utensils

Auto industry

Corrosion resistant parts of cars

Agriculture

Food storage, meat and aquatic products' freezing and processing equipment

Commerce

Equipments to store and transport materials, and packing implements


  Z21 BMP Prepainted Rolled Steel Coil for Construction

 

Specifications of Z21 BMP Prepainted Rolled Steel Coil for Construction

Product

Z21BMP Prepainted Rolled Steel Coil for Construction

Material Grade

SGCC / SGCH  / DX51D+AZ, etc

Thickness

0.6-3.0mm

Width

500-1500mm

Tolerance

Thickness: +/-0.02mm , Width:+/-2mm

Zinc-coating

Z30-150g/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

1-25MT

Export package

Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed

  

FAQ of Z21 BMP Prepainted Rolled Steel Coil for Construction

1.What's your MOQ?

25MT, it is for one container.

2.Do you have QC teams?

Yeah, sure, our QC team is very important, they will keep the quality control for our products.

3.Are the products tested before shipping?

Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day.

4.What's your normal delivery time?

Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.


 

Q: What are the different types of steel coil welding methods?
There are three main types of steel coil welding methods: resistance welding, arc welding, and laser welding. Resistance welding uses an electric current to generate heat and join the steel coils together. Arc welding uses a high-intensity electric arc to melt the edges of the coils, creating a strong weld. Laser welding utilizes a focused laser beam to melt and fuse the coils, resulting in a precise and high-quality weld.
Q: What are the common coil surface finish standards?
The common coil surface finish standards include mill finish, brushed finish, mirror finish, and embossed finish.
Q: I live in the Black Hills and I need to re-side my cottage. I like the look of vinyl. I've heard pros and cons about both steel and vinyl. Is steel really that easy to dent? It just doesn't look as 'clean' as vinyl. Also what 3 color combos do you like? My cottage has shutters.
I'd like to know why you need to re-side it. I would get vinyl because it will not need painting as soon as steel.
Q: I have heartgold and I don't have a steel type Pokemon to beat lapras. HELP
magneton. steel and electric type
Q: Does anyone know what is 12 gage Cold Rolled Steel meaning? Also, help me to describe it.Thank you so muck ~!Mark Lin
Steel thickness is measured by gages. 16 gage is approximately 1/16th of an inch. The larger the number (say, 24), the thinner the steel. Steel is made from large metal bars (4'x12', about 8 thick) that pass through presses to get thinner and thinner. If the final stages of rolling are done with pressure and not heat, it is cold rolled. It often gets galvanized to prevent rusting. Hope this helps.
Q: What are the challenges in coil blanking for high-strength steel?
Coil blanking for high-strength steel presents several hurdles due to the unique properties of this material. One of the main obstacles lies in the steel's high tensile strength, which makes cutting and blanking more difficult when compared to traditional steel grades. High-strength steel is typically harder and less malleable, resulting in heightened tool wear and greater cutting forces. Therefore, specialized cutting tools capable of enduring these extreme conditions are necessary. Additionally, the augmented cutting forces can cause increased vibrations, potentially impacting the accuracy and quality of the blanks. Another challenge arises from the spring-back effect displayed by high-strength steel after it is cut. This means that the material tends to return to its original shape, creating difficulties in achieving precise dimensions and tolerances in the blanks. Consequently, careful consideration and adjustment of the cutting parameters are required to minimize the spring-back effect. Furthermore, high-strength steel often contains a higher carbon content, leading to increased work hardening during the blanking process. As a result, the material becomes even harder and more brittle, making it more susceptible to cracks and fractures. To overcome this challenge, proper lubrication and cooling techniques are crucial in reducing heat buildup and minimizing the risk of cracking. Additionally, the heightened strength of the steel can also impact overall production efficiency. The increased cutting forces and tool wear may necessitate a reduction in cutting speeds, resulting in longer processing times. This can affect the productivity and throughput of the coil blanking process, requiring meticulous optimization and planning. In conclusion, the challenges involved in coil blanking for high-strength steel encompass increased cutting forces, tool wear, the spring-back effect, work hardening, and reduced production efficiency. Overcoming these challenges necessitates the use of specialized cutting tools, precise cutting parameters, proper lubrication and cooling techniques, and meticulous optimization of the production process.
Q: What are the dimensions of steel coils used in the structural component industry?
The dimensions of steel coils utilized in the structural component sector are subject to variation, contingent upon the particular application and specifications. Nevertheless, standard dimensions for steel coils in this industry encompass a width that ranges between 600mm and 2000mm, as well as a thickness that spans from 0.25mm to 10mm. The weight of these coils may also differ, typically ranging from a few kilograms to numerous tonnes. Furthermore, the length of the steel coils can be customized to fulfill the specific demands of the structural component industry, with commonplace lengths including 2000mm, 2500mm, and 3000mm. It is vital to acknowledge that these dimensions are not exhaustive and are susceptible to variation based on the specific product and manufacturer.
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 steps. The coils are first uncoiled and then straightened before being cut to the desired length. These cut lengths are then shaped and bent into the required reinforcement bar shape using specialized machinery. Finally, the bars are heat-treated and cooled to enhance their strength and durability. Overall, steel coils serve as the primary raw material for the production of construction reinforcement bars, providing the necessary strength and structural integrity to concrete structures.
Q: How are steel coils unloaded from a truck or ship?
Steel coils are typically unloaded from a truck or ship using various equipment and techniques. The unloading process depends on the type and size of the coils, as well as the available resources and infrastructure at the unloading site. For unloading from a truck, a common method involves the use of a forklift or crane equipped with coil hooks. The coils are carefully lifted and positioned onto the ground or a designated storage area. Alternatively, some trucks may be equipped with specialized roll-off trailers that allow the coils to be rolled off the truck bed. When unloading from a ship, larger cranes are often used due to the size and weight of the coils. These cranes can be located either on the ship itself or on the dock. The coils are lifted from the ship's cargo hold using specialized lifting hooks or spreader bars and carefully lowered onto the dock or a waiting truck. In some cases, a coil transfer car or coil trailer may be utilized to move the coils from the ship's cargo hold to the unloading area. These devices are designed to transport and position the coils safely and efficiently. It is worth noting that safety measures are of utmost importance during the unloading process. Proper securing of the coils, equipment stability, and adherence to weight limits are crucial to prevent accidents or damage to the coils, the truck, or the ship. Overall, the unloading of steel coils from trucks or ships involves the use of specialized equipment such as cranes, forklifts, and coil hooks. These tools, along with proper planning and safety precautions, ensure the efficient and safe transfer of the coils to their designated storage or transportation areas.
Q: How do steel coils contribute to the manufacturing of HVAC systems?
Steel coils are used in the manufacturing of HVAC systems primarily for their strength and durability. They form the core structure of various components such as heat exchangers, condenser coils, and evaporator coils. The steel coils provide stability and support, ensuring the longevity and efficiency of HVAC systems by withstanding high temperatures, pressure, and constant use.

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