Your Professional Steel Plate 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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Galvanized Iron Sheet RoofingGalvanized Iron Sheet Roofing is supplied with hot-dip galvanized coating on iron substrate for excellent corrosion resistance and strong load-bearing capacity. It is widely used for industrial workshops, warehouses, residential...view more
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Galvanized Corrugated RoofingGalvanized Corrugated Roofing is supplied with hot-dip galvanized coating on corrugated iron substrate for excellent corrosion resistance and enhanced structural stability. It is widely used for industrial workshops, warehouses, rural...view more
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Flat Rolled Steel SheetFlat Rolled Steel Sheet is supplied with hot-dip galvanized coating on flat steel substrate for reliable corrosion resistance and excellent flatness. It is widely used for construction, automobile manufacturing, household appliances,...view more
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Galvalume Metal Roof PanelsGalvalume Metal Roof Panels are supplied with aluminum-zinc alloy coating on metal substrate for superior corrosion resistance and excellent weatherability. It is widely used for industrial workshops, commercial buildings, villas, and...view more
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PPGI Steel PlatePPGI Steel Plate is supplied with organic color coating on galvanized steel substrate for durable corrosion resistance and elegant decorative appearance. It is widely used for architectural decoration, household appliance manufacturing,...view more
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PPGL Steel PlatePPGL Steel Plate is supplied with organic color coating on aluminum-zinc (galvalume) steel substrate for superior corrosion resistance and long-lasting decorative performance. It is widely used for high-end architectural decoration,...view more
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Pre Painted Galvalume SheetPre Painted Galvalume Sheet is supplied with high-quality organic color coating on the aluminum-zinc (galvalume) substrate, featuring superior corrosion resistance and elegant decorative effect. It is widely used for high-end...view more
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Corrugated Galvanized Steel Roofing SheetCorrugated Galvanized Steel Roofing Sheet is supplied with hot-dip galvanized coating on corrugated steel substrate, featuring excellent corrosion resistance and enhanced structural stability. It is widely used for industrial workshops,...view more
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Galvalume Corrugated Metal Roof PanelsGalvalume Corrugated Metal Roof Panels are supplied with aluminum-zinc (galvalume) coating on corrugated metal substrate, featuring superior corrosion resistance and enhanced structural stability. It is widely used for industrial...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 Plate
A steel plate is a flat, thick piece of metal typically measuring \(\frac{1}{4}\) inch (6 mm) or more in thickness. It is created by rolling steel under high temperatures to provide exceptional strength, durability, and versatility, and it can be easily cut, welded, and formed into various products.
Product Specification
We offers the following product specifications:
|
Parameter |
Range/Details |
|
Product Name |
Aluzinc-Coated Flat Rolled Steel Coil |
|
Coating Type |
55% Al - 43.4% Zn - 1.6% Si (Aluzinc) |
|
Coating Weight |
50 g/m² - 200 g/m² (per side) |
|
Substrate Material |
Cold-Rolled Steel (CR) / Hot-Rolled Steel (HR) |
|
Steel Grade |
Q235, Q345 (GB); S235JR, S355JR (EN); A36, A570 (ASTM) |
|
Thickness |
0.15 mm - 3.0 mm |
|
Width |
600 mm - 1,800 mm (custom widths available) |
|
Coil ID |
508 mm / 610 mm (standard); custom IDs on request |
|
Coil OD |
Up to 2,000 mm |
|
Surface Finish |
Regular Spangle (RS), Minimal Spangle (MS), Zero Spangle (ZS) |
|
Tensile Strength |
300 MPa - 600 MPa (varies by steel grade) |
|
Elongation |
≥15% (for CR substrate); ≥10% (for HR substrate) |
|
Corrosion Resistance |
≥2,000 hours (neutral salt spray test, ASTM B117) |
|
Standards Compliance |
ASTM A792/A792M, EN 10346, JIS G 3321 |
|
Packaging |
Seaworthy wooden pallets + PE film + VCI paper (moisture-proof, rust-proof) |
Strength and Durability:
Steel plates are renowned for their high tensile strength and durability. These properties make them capable of withstanding significant stress, heavy loads and harsh environmental conditions.
Versatility:
The variety of sizes and thicknesses available allows for flexibility in design and application. Steel plates can be cut, welded, and shaped to fit specific project requirements, making them suitable for a wide range of construction and industrial uses.
Cost-Effectiveness:
Steel is relatively inexpensive compared to other building materials like aluminum or titanium. Given its strength and longevity it is a cost-effective material.
Ease of Fabrication
Steel plates can be easily cut, welded, shaped, and manipulated using standard industrial tools and techniques. This ease of fabrication accelerates construction timelines and reduces labor costs, contributing to the overall efficiency of the projects with precision specifications.
Availability
Steel plates in the sizes mentioned are readily available from major supplier, ensuring projects can proceed without delay. Reputable suppliers frequently provide consistent quality and availability, which is crucial for meeting project timelines and standards.

Materials
Carbon steel is the most frequently used and comes in varying levels of strength and ductility, which is dependent on the level of carbon added. These types include low, medium, and high carbon steel.
Alloy steel is a type of steel grade that has additional alloying elements beyond carbon that are added to enhance specific properties.
Stainless steel contains at least 10.5% of chromium which forms a protective layer on the surface for additional corrosion resistance. The biggest drawbacks to this grade for steel plates is the high cost and maintenance needed to maintain its appearance.
Tool steel is known for its hardness, resistance to wear, and ability to maintain its shape under high temperatures, making this grade of steel plate popular for use in hand tools and machine dies.

Hot-Rolled Sheet Metal: Cost-effective. The hot-rolling process increases the steel's toughness and ductility. Hot-rolled steel is ideal for extrusions, forgings, and bending applications.
Hot-rolled steel is used for pipes and tubing, construction, vehicle frames, and applications where tight tolerances are not required.
Cold-Rolled Sheet Metal: Yield strength is higher than hot-rolled steel. It is ideal for applications that require accurate dimensions and increased strength.
Industries & Applications
Steel plate and plate cut from coil can be used in a variety of industries and applications, as it is a very versatile and commonly used form of steel.
Aerospace
Aircraft-quality plate steel can be used for the machine tools and other equipment used to fabricate aircraft parts.
Agriculture
Typically used for agricultural equipment like harvesters, plows, and tillers.
Construction
Commonly used for structures like bridges.
Defense
Steel plate produced to military specifications can be used in armored tanks, personnel vehicles, ships, and more.
Heavy Equipment/Machinery
Commonly used in construction and earthmoving equipment, heavy trucks, rail, cranes, and more.
Pressure Vessel
Pressure vessel plate is a specific type of steel plate used for pressure vessel storage containers such as oil and gas.
Solar and Wind Towers
Steel plate is commonly used in solar and wind towers.
Automotive
Steel plate can be used in automotive construction.
Service & Support
Customization: Tailored dimensions, coatings, and packaging.
Technical Assistance: On-site guidance for installation and fabrication.
Quality Assurance: Mill test certificates and third-party inspections available.
After-Sales Warranty: Up to 25 years against perforation corrosion (terms apply).
Global Logistics: Reliable shipping and doorstep delivery worldwide.
Certificates

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

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

