Coated Steel Sheet Metal Fabrication

Coated Steel Sheet Metal Parts

Coated Steel Sheet Metal Fabrication

Featuring a protective surface coating over a steel substrate, coated steel offers excellent corrosion resistance, good formability, and durability. Common coating types include zinc coatings, as found in galvanized steel, and aluminum-zinc alloy coatings, which provide additional protection against weathering and corrosion. Coated steel is widely used for manufacturing enclosures, panels, brackets, roofing components, and industrial equipment.

Advantages of Coated Steel Sheet Metal Fabrication

Excellent Corrosion Resistance
Good Formability
Good Weldability
Durable Surface Protection
High Weather Resistance
Cost-Effective Performance

Available Coated Steel Types

Coated Steel A653

Coated Steel A653 refers to steel sheet supplied in accordance with ASTM A653/A653M, which covers hot-dip zinc-coated (galvanized) and zinc-iron alloy-coated (galvannealed) steel sheet. The specification covers material supplied in coils and cut lengths and includes multiple steel designations for different fabrication and performance requirements, including commercial steel, forming steel, deep drawing steel, extra deep drawing steel, structural steel, high-strength low-alloy steel, and other specialized grades.

Key Mechanical Properties

310 to 570MPa
Tensile Strength
230 to 550MPa
Yield Strength
12% to 20%
Elongation at Break

Recommended Applications

Roofing Components
Ductwork
Cabinets
Flashing
Protective Covers
Electrical Enclosures

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Coated Steel AZ55

Coated Steel AZ55, commonly known as Galvalume® AZ55 (ASTM A792), is a cold-rolled carbon steel sheet coated with a 55% aluminum, 43.4% zinc, and 1.6% silicon alloy applied via a continuous hot-dip process. Combining the long-term barrier protection and heat reflectivity of aluminum with the sacrificial edge protection of zinc, Coated Steel AZ55 offers superior corrosion resistance compared to standard galvanized steel. It is widely specified in sheet metal fabrication for long-lasting exterior and industrial components.