Latest Updates on Galvanized Steel Coils: Models, Materials, and Applications

1. Industry Overview

Galvanized steel coils remain a cornerstone of modern manufacturing and construction due to their superior corrosion resistance, durability, and cost-effectiveness.

With advancements in coating technologies and growing demand from emerging economies, the global Galvanized Steel market is projected to grow at a CAGR of 4.2% (2024–2030).

Galvanized Steel Coil is a corrosion-Resistant Steel product coated with a layer of zinc through a hot-dip or electro-galvanizing process. It is widely used in construction, automotive,

appliances, and manufacturing due to its durability and rust prevention.

2. Key Models & Specifications

Common International Standards:

• European (EN 10346):

  • DX51D: Basic forming grade (general use).

  • DX52D, DX53D: Improved formability (automotive, appliances).

  • DX54D: Deep-drawing grade (complex shapes).

• Japanese (JIS G 3302):

  • SGCC: Standard galvanized steel (construction, ductwork).

  • SGCH: High-grade (exterior panels, high-corrosion resistance).

• American (ASTM A653):

  • CS Type A/B: Commercial steel (light forming).

  • FS Type A/B: Structural steel (heavy-duty applications).

Zinc Coating Grades:

• Regular (Z60–Z100): Light-duty applications.

• Heavy-Duty (Z180–Z275): Roofing, industrial use.

3. Material & Coating Technologies

• Base Material: Cold-rolled steel (SPCC, DC01, etc.).

• Coating Types:

  • Hot-Dip Galvanizing (HDG): Thicker zinc layer (30–275 g/m²), ideal for outdoor use.

  • Electro-Galvanizing (EG): Thinner, uniform coating (e.g., automotive panels).

• Innovations:

  • Magnesium-Aluminum-Zinc (Mg-Al-Zn) Alloy Coatings: Enhanced rust resistance for coastal areas.

  • Anti-Fingerprint Coatings: Used in appliances and electronics.

4. Major Applications

5.Application:
Galvanized sheet (roll) strip products are mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and commerce.

The construction industry mainly uses it to manufacture corrosion-resistant industrial and civil building roof panels, roof grilles, etc.;

the light industry uses it to manufacture home appliance shells, civil chimneys, kitchen utensils, etc.;

the automobile industry mainly uses it to manufacture corrosion-resistant parts of cars; agriculture,

animal husbandry and fishery mainly use it for grain storage and transportation, meat and aquatic products freezing processing tools, etc.;

commerce mainly uses it as storage and transportation of materials, packaging tools, etc.