SS400 Galvanized steel plate is a high-strength carbon structural steel plate that has been coated with a layer of zinc through the hot-dip galvanizing process. This combination leverages the excellent mechanical properties of the JIS G3101 SS400 grade with the superior corrosion resistance of a zinc coating, resulting in a robust, versatile, and long-lasting material solution for demanding applications across various industries.

By bonding the zinc layer to the steel substrate, we create a product that offers exceptional protection against rust and corrosion, significantly extending the service life of structures and components while reducing maintenance costs.

Key Features & Advantages

Superior Corrosion Resistance:

The zinc coating acts as a physical barrier against moisture, chemicals, and environmental elements. Furthermore, the zinc sacrificially protects the underlying steel, even if the coating is scratched or damaged (a process known as cathodic protection).

Excellent Mechanical Strength:

The SS400 base steel provides high yield strength and tensile strength, ensuring structural integrity, load-bearing capacity, and resistance to impact and deformation.

Enhanced Longevity and Durability:

Hot-dipped galvanizing offers a much thicker and more robust coating compared to electroplating. This dramatically increases the product's lifespan, making it ideal for both indoor and outdoor use in harsh environments.

Cost-Effectiveness:

The long service life and minimal maintenance requirements of galvanized steel lead to significantly lower lifetime costs compared to untreated steel or many alternative materials.

Aesthetic Appeal:

The galvanized surface presents a clean, bright, and spangled appearance that is often desirable for architectural and visible applications. It also provides an excellent surface for painting if a different color is required.

Ease of Fabrication:

Despite its strength, SS400 Galvanized plate retains good machinability. It can be cut, drilled, welded, and formed using standard metalworking equipment, allowing for flexibility in manufacturing and construction.

Technical Specifications

Base Material Standard: JIS G3101 SS400 (Equivalent to Chinese GB/T 700 Q235B)

Yield Strength: Min. 245 MPa

Tensile Strength: 400 - 510 MPa

Galvanizing Process: Hot-Dip Galvanizing (HDG)

Zinc Coating Mass: Typically available in standard coating classes (e.g., G60, Z180), which correspond to a coating thickness of approximately 60-85 μm (600-850 g/m² on both sides). Custom coating weights are available.

Surface Finish: Characteristic spangle pattern (regular, minimized, or extra-smooth spangle upon request).

Standard Sizes:

Thickness: 1.0mm to 6.0mm (and thicker upon request)

Width: 1000mm, 1219mm, 1250mm, 1500mm (standard)

Length: 2000mm, 2438mm, 2500mm, 3000mm (standard coils and sheets also available)

Applications

SS400 Galvanized Steel Plate is widely used in industries where strength and corrosion resistance are paramount:

Construction & Building: Structural frames, roofing and wall cladding, trusses, purlins, warehouse shelters, and agricultural buildings.

Automotive Industry: Truck chassis, trailer parts, body panels, and structural reinforcements.

Manufacturing & Fabrication: Electrical cabinets, switch boxes, machinery guards, conveyor systems, and storage shelves.

Infrastructure: Highway sound barriers, drainage systems, bridge components, and transmission towers.

Agricultural Equipment: Grain silos, animal housing equipment, and harvesting machinery.