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.

 
  • Prepainted Galvalume Steel Coil
    Prepainted 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,...
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  • GI Steel Coil
    GI 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.
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  • AZ150 Galvalume Steel Coil
    AZ150 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.
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  • Galvanized Steel Sheet In Coil
    Galvanized 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.
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  • Prime Hot Dipped Galvanized Steel Coils
    Prime 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.
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  • ASTM A792 Galvalume Steel Coil
    ASTM 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.
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  • Aluzinc Steel Coil
    Aluzinc 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,...
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  • Galvalume Steel Coil Suppliers
    Galvalume 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.
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  • PPGL Steel Coil
    PPGL 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.
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  • Color Coated Galvanized Steel Coil
    Color 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...
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  • PPGI Steel Coil
    PPGI 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.
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  • Pattern Printed Steel Coil
    Pattern 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.
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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:

Thickness

0.12mm - 3.00mm

Width

750mm - 1000mm

Zinc Coating

Z25 - 275g/m²

Coil Weight

3 - 5 tons

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.

 

 

Application

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.

AZ150 Galvalume Steel Coil

 

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.

 

GI Steel Coil

 

Coil Processing Services

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

 

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Package & Delivery

 

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

 

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FAQ

 

 

Q: What types of steel coils do you supply?

A: We supply a wide range of steel coils, including galvanized steel coil (GI), cold rolled steel coil (CR), hot rolled steel coil (HR), and pre-painted steel coil (PPGI/PPGL), suitable for construction, manufacturing, and industrial applications.

Q: Can you provide OEM or customized steel coil specifications?

A: Yes, we can customize thickness, width, coating weight, surface finish, and steel grade according to customer requirements and project specifications.

Q: What international standards do your steel coils comply with?

A: Our products are manufactured in compliance with major international standards such as ASTM, JIS, EN, and GB standards, depending on the destination market.

Q: How do you ensure the quality of steel coils?

A: We implement strict quality control at every production stage, including raw material inspection, in-process monitoring, and final product testing to ensure consistency and performance stability.

Q: Do you provide mill test certificates (MTC)?

A: Yes, we provide full mill test certificates and inspection reports, including chemical composition, mechanical properties, and coating details for every shipment.

Q: What is the typical lead time for steel coil orders?

A: Lead time usually ranges from 15 to 35 days depending on specifications, order volume, and production schedule.

Q: Can you offer slit or cut-to-length steel coils?

A: Yes, we provide slitting, cut-to-length, and forming services to meet different downstream processing requirements.

Q: What packaging do you use for steel coils?

A: Standard seaworthy packaging is used, including waterproof wrapping, steel strapping, edge protection, and wooden pallets to ensure safe transportation.

Q: What is your minimum order quantity (MOQ)?

A: MOQ depends on the grade and specification, but we offer flexible solutions for both trial orders and large-scale procurement.

Q: Can you supply steel coils for construction applications?

A: Yes, our steel coils are widely used in construction, roofing, structural components, and prefabricated building systems.

Q: Do you offer galvanized and color-coated steel coils?

A: Yes, we supply both galvanized steel coils and color-coated steel coils with various coating thicknesses and surface finishes.

Q: How do you control coating quality and durability?

A: We conduct strict coating thickness testing, adhesion tests, and surface inspections to ensure long-term corrosion resistance and durability.

Q: Can you support customized steel grades?

A: Yes, we can produce steel coils in different grades according to ASTM, JIS, EN, and customer-specific requirements.

Q: Do you provide samples before bulk orders?

A: Yes, sample coils can be provided for testing and evaluation, including coating, strength, and surface quality verification.

Q: Why do international buyers choose your steel coils?

A: Buyers choose us for stable product quality, flexible customization, reliable supply capacity, strict quality control, and consistent compliance with international standards.

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.

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