Your Professional Steel Coil Supplier!
Shandong SDEE Steel Co., Ltd. relies on Shandong Shengde Daye New Materials Technology Co., Ltd., which also serves as our production base. So far, SDEE Steel has three major production bases and warehouses located in China, Saudi Arabia, and Indonesia.
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Prepainted Galvalume Steel CoilPrepainted Galvalume Steel Coil (PPGL) is supplied with a high-quality organic coating on the galvalume substrate (55% Al + 43.4% Zn + 1.6% Si) for superior corrosion resistance and weatherability. It is widely used for roofing panels,...view more
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GI Steel CoilGI Steel Coil (Galvanized Steel Coil) is supplied with hot-dip zinc coating for reliable corrosion resistance. It is widely used for construction steel structures, metal roofing, and light industry product manufacturing.view more
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AZ150 Galvalume Steel CoilAZ150 Galvalume Steel Coil is supplied with 150 g/m2 aluminum-zinc coating for high corrosion resistance. It is widely used for roofing panels, steel structures, and appliance manufacturing.view more
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Galvanized Steel Sheet In CoilGalvanized Steel Sheet In Coil is supplied with pure zinc coating for basic anti-corrosion performance. It is widely used for steel structures, metal parts processing, and general building materials.view more
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Prime Hot Dipped Galvanized Steel CoilsPrime Hot Dipped Galvanized Steel Coils are supplied with pure zinc coating for reliable anti-corrosion performance. It is widely used for steel structures, roofing panels, and general metal component manufacturing.view more
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ASTM A792 Galvalume Steel CoilASTM A792 Galvalume Steel Coil is supplied with aluminum-zinc alloy coating for superior long-term corrosion resistance. It is widely used for roofing panels, wall cladding, and industrial steel structure applications.view more
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Aluzinc Steel CoilAluzinc Steel Coil is supplied with aluminum-zinc alloy coating for outstanding anti-corrosion performance. It is widely used for roofing panels, building steel structures, and home appliance production.Perfect for roofing, cladding,...view more
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Galvalume Steel Coil SuppliersGalvalume Steel Coil is supplied with premium aluminum-zinc alloy coating for outstanding corrosion resistance. It is widely used for roofing panels, building steel structures, and home appliance manufacturing.view more
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PPGL Steel CoilPPGL Steel Coil is supplied with organic color coating on Al-Zn alloy substrate for superior weather resistance and corrosion protection. It is widely used for roofing panels, wall cladding, and decorative manufacturing.view more
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Color Coated Galvanized Steel CoilColor Coated Galvanized Steel Coil is supplied with organic color coating on a galvanized substrate for reliable corrosion resistance and aesthetic appearance. It is widely used for roofing panels, wall cladding, and interior and...view more
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PPGI Steel CoilPPGI Steel Coil is supplied with organic color coating on galvanized steel substrate for durable corrosion resistance and decorative finish. It is widely used for roofing panels, wall cladding, and household appliance manufacturing.view more
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Pattern Printed Steel CoilPattern Printed Steel Coil is supplied with customized printed pattern coating for decorative effect and durable corrosion resistance. It is widely used for interior decoration, appliance shells, and architectural wall panels.view more
Why Choose Us
Quality Control
SDEE Steel enforces comprehensive quality control throughout production and holds internationally recognized certifications, ensuring every steel coil complies with global performance and durability standards.
Customized Processing
We offers comprehensive processing services, including cut-to-length, slitting, and forming based on customer specifications. Support for customized designs, specifications, and packaging to meet personalized requirements.
Sales Market
Our products have been sold to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Middle East, Eastern Asia, Western Europe.
Overview: Steel Coil
A steel coil is a continuous, long strip of metal wound into a cylindrical roll. Created to streamline storage, transport, and manufacturing, it serves as the raw material for countless everyday products.
Product Specification
We offers the following product specifications:
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Thickness |
0.12mm - 3.00mm |
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Width |
750mm - 1000mm |
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Zinc Coating |
Z25 - 275g/m² |
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Coil Weight |
3 - 5 tons |
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Surface Spangle |
Zero / Regular / Big |
Common types
Galvanized Steel Coil
Coated with a layer of zinc for enhanced corrosion resistance. This type is ideal for outdoor applications like roofing and cladding.
Galvalume Steel Coil
Coated with a mix of zinc, aluminum, and silicon, providing better corrosion resistance than regular galvanized steel. These coils are often used in coastal or industrial environments.
Pre-painted Steel Coil (PPGI/PPGL)
Painted or pre-coated steel coils that come in a variety of colors and finishes. They are commonly used in visible architectural applications.
Construction and Infrastructure
Construction and infrastructure projects rely on steel coils. Roofing materials made from coils offer weather resistance and long-term durability. Flat, rolled coils make it easy to create and install metal sheets.
Automotive Manufacturing
Automotive manufacturing uses steel coils for car bodies, frames, and engine components. Cold rolling often increases strength and surface quality, helping with lightweight and safe designs.
Appliances and Consumer Goods
Household appliances like refrigerators, washing machines, and ovens depend on steel coils. Smooth surfaces make painting or coating easier, boosting both looks and durability.
Storage Tanks and Industrial Uses
Storage tanks rely on steel coils for construction because steel brings the strength needed to safely hold liquids or gases. Steel coils let manufacturers shape large, curved tank walls without piecing together lots of welded sections.

Production Process
Steel coil is finished steel sheet or strip that has been coiled or wound after rolling with the width of the metal sheet being greater than its thickness. Steel coil with certain coatings can be weather-resistant, protect against moisture, and is ecofriendly. Steel coil is produced through different processes depending on the desired outcome.
Hot-rolled steel coil is steel plate that is rolled at a high temperature, making the steel easier to manipulate. Due to the quick and easy process, hot-rolled steel saves time and is less expensive to manufacture.
Cold-rolled steel coil has a nicer finish and is more durable than hot-rolled steel. Cold-rolling is a process where the steel is rolled at room temperature, below its recrystallization temperature. While cold-rolled steel coil is more superior to other coils, cold-rolled steel can be harder to manipulate due to the higher carbon content.
Galvanized steel coil is created through a hot-dipped process that dips the metal into zinc for a nice smooth coating. The coating creates a strong rust resistance and prolongs the life of the steel coils.
Galvannealed steel coil is created similar to galvanized steel through a hot-dipping process that soaks the metal into a liquid bath of zin alloy and then is passed through in-line heat treatment. Galvannealed steel is usually thinner and is more assessable to painting compared to other processes.

We offer the following processing services and capabilities:
Multi-Blanking/Cut-to-Length Processing
50,000lb coil weight max
16,000lb exit weight max
Entry ID: 20-24"
Have the ability to hold flatness at 2/3 of the ASTM A1011 standard
Capabilities may vary based on grade / dimension of the blank
Thickness range—.018"—.125"
Width range—8"—72"
Length range—12"—144"
Max # of cuts—5
Steel Slitting
Thickness: .018" - .250"
Width: 1.125" - 72"
ID: 20 - 24"
OD Max: 72"
50,000 lb incoming master coils
Capabilities vary based upon grade and thickness. Please inquire for specifics or requirements outside of the above ranges.
Certificates

Package & Delivery
Package: Standard export package or Custom
Delivery: By air express, by sea

FAQ
As one of the leading steel coil manufacturers and suppliers in China, we warmly welcome you to buy discount steel coil for sale here from our factory. All customized products are with high quality and competitive price. Contact us for free sample.

