500g 600g 800g Ultra-high Zinc Layer Steel Plate

GNEE STEEL specialize in providing 500g 600g 800g China ultra-high zinc layer steel plate with high corrosion resistance and ultra thick zinc coating
Galvanized Steel Sheet is widely used in industries such as construction, home appliances, and automobiles due to its excellent corrosion resistance. The following are the typical uses and differences of 500g, 600g, and 800g galvanized steel plates (referring to the weight of the zinc layer per square meter, i.e. the thickness of the zinc layer varies):

01

1. 500g/m ² hot-dip galvanized steel sheet (with a thin zinc layer)

 

Zinc layer thickness: about 70 μ m (single-sided 35 μ m)
Features: Economical and practical, suitable for general corrosive environments.

Purpose:
In the field of architecture: lightweight roofs, walls, ventilation ducts, canopies, etc.
Home appliances: internal structural components such as refrigerators, washing machine backboards, and air conditioning enclosures.
Furniture: filing cabinets, shelves, office desk frames, etc.
Agriculture: Greenhouse skeletons, grain warehouses, and other mildly corrosive environments.

02

2. 600g/m ² hot-dip galvanized steel sheet (medium zinc layer)

Zinc layer thickness: about 85 μ m (single-sided 42.5 μ m)
Features: Strong anti-corrosion performance, suitable for moderate corrosive environments.
Purpose:
Building structure: steel structure factory building, bridge guardrail, highway soundproof board.
Industrial equipment: electrical control cabinets, distribution boxes, industrial ventilation systems.
Automobiles: truck chassis components, fuel tank casings, and other protective parts.
Municipal facilities: streetlight poles, traffic signs, trash cans.

03

3. 800g/m ² hot-dip galvanized steel sheet (zinc layer thickness)

Zinc layer thickness: approximately 112 μ m (56 μ m on one side)
Features: High corrosion resistance, suitable for harsh environments or long-term outdoor use.
Purpose:
Harsh environment: coastal buildings, chemical plants, port facilities (high salt spray, high humidity).
Energy industry: transmission towers, photovoltaic brackets, wind power bases.
Heavy protection: large storage shelves, container floor, railway vehicle components.
Agriculture: High strength greenhouse framework, livestock equipment (with high corrosion resistance requirements).

• Environmental corrosiveness: It is recommended to consume 600g or more in coastal or industrial areas, and 500g or more is sufficient for ordinary inland areas.
• Cost considerations: The thicker the zinc layer, the higher the price, requiring a balance between anti-corrosion requirements and budget.
• Processing requirements: Excessive zinc layer may affect welding or stamping performance and needs to be adjusted according to the process.
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• Galvanization standards: Different countries have different labeling methods (for example, China uses "g/m ²", while Europe and America may use "Zxx" to indicate the weight of the zinc layer).
• Subsequent processing: Galvanized sheet can be further color coated (color steel plate) to enhance its appearance and durability.

According to specific project requirements such as strength, processing method, and expected lifespan, a comprehensive selection can be made based on the weight of the galvanized layer and the substrate material (such as DX51D, S350GD, etc.)

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