Corrosion resistance Galvanized steel coils

27 Mar.,2025

Galvanized steel coil, a material that is zinc-plated on the surface of the steel coil to enhance corrosion resistance, is widely used in construction, automobiles, home appliances and other fields. Its advantages are that it provides long-term anti-rust protection and improves structural strength.

 

Galvanized steel coil, a material that is zinc-plated on the surface of the steel coil to enhance corrosion resistance, is widely used in construction, automobiles, home appliances and other fields. Its advantages are that it provides long-term anti-rust protection and improves structural strength. At the same time, it has good processing performance and decorative effects, ensuring stable use in various environments and extending product life.

 

 

Galvanized steel coils features:

 

Corrosion resistance:

The surface of galvanized steel coil is covered with a layer of zinc, which can effectively prevent the steel substrate from contacting with oxygen, moisture and other corrosive substances in the atmosphere, thereby protecting the steel substrate from corrosion.

Anti-rust protection:

The zinc layer forms a protective film on the steel surface, which can effectively prevent the steel substrate from rusting even in a humid or salt spray environment.

Mechanical strength:

The zinc layer increases the mechanical strength of the material, making the galvanized steel coil more durable when subjected to external forces.

Welding performance:

Galvanized steel coils are easy to weld because the zinc layer does not hinder the welding process and the joint strength after welding is high.

Economic efficiency:

The galvanizing process cost is relatively low, and the production efficiency of galvanized steel coils is high, so it is highly cost-effective.

 

 

Common specifications:

 

Width:600-1500mm

Thickness: 0.13-4.0mm

Roll weight: 4-6 tons

Standards: JISG3302, EN10142/10143, ASTM653

Material: SGCC DX51D DC51D G550 SPGC

Zinc:40G-275G/

Surface: spangle coating, minimized spangle coating, spangle-free

 

 

PPGI coils / Pre-Painted Galvanized coils

 

PPGI coil is a metal coil with a layer of color coating on the surface of galvanized steel coil, which is both corrosion-resistant and decorative. It is suitable for construction, furniture, home appliances and other industries. It combines the corrosion resistance of galvanizing and the beauty of color coating to provide an economical, durable and diverse material choice, effectively improving the appearance quality and service life of the product.

It is often used in the production of roofs, walls, doors and corrugated sheets for the construction of steel structure factories, warehouses, freezers and other industrial and commercial buildings, and is used for exterior wall decoration and roof production.

 

 

Common specifications:

 

Width:50-1500mm

Thickness: 0.15-1.5mm

Roll weight: 4-6 tons

Paint film: top painting(10-25u) and back painting(5-13u)