Good Thermal Resistance Hot Dip Galvanized Steel Coil For
Architecture Roofs
01. Anticorrosive:13 years in heavy industrial areas,50 years in
the ocean,104 years in the suburbs and 30 years in cities.
02. Cheap:The cost of hot-dip galvanizing is lower than that of
other coatings.
03. Reliable:The zinc coating is metallurgically bonded to the
steel and forms part of the steel surface,so the coating is more
durable.
04. Strong toughness:The galvanized layer forms a special
metallurgical structure that can withstand mechanical damage during
transportation and use.
05. Comprehensive protection:Every part of the plated piece can be
galvanized,and is fully protected even in depressions,sharp
corners,and hidden places.
06. Save time and energy:Galvanizing process is faster than other
coating methods.
Good Thermal Resistance Machinability Galvanized Steel Coils
Brief Introduction
Galvanized Steel Coil gets coated in layers of zinc because rust
won't attack this protective metal. The most external layer is all
zinc, but successive layers are a mixture of zinc and iron, with an
interior of pure steel. These multiple layers are responsible for
the amazing property of the metal to withstand corrosion-inducing
circumstances. Zinc also protects the steel by acting as a
"sacrificial layer." If rust does take hold on the surface of
Galvanized Steel Coil, the zinc will get corroded first. This
allows the zinc that is spread over the breach or scratch to
prevent rust from reaching the steel. For countless outdoor,
marine, or industrial applications, Galvanized Steel Coil is an
essential fabrication component.
The Protection Principle
1. Anodic reaction: Zn-2e=Zn2+
(The alloy coating loses electron, sacrificing itself in
dissolution.)
2. Cathodic reaction: Fe2++2e=Fe
(Fe gains electron reaction, being protected)
Specification
1. Thickness: 0.15-4.0mm
2. Width: 600-1500mm
3. Inner Diameter: 508mm
4. Weight of Steel Coil: 3-18MT
5. Coating Type: Pure Zinc
6. Available Dipped Layer: 50-275g/m2
7. Surface Finish Structure: Zero Spangle & Finishing Small Spangle
& Regular Spangle
8. Available Surface Treatment: Passivating & Oiling & AFP &
Filming
Mechanical Properties
Grades | Mechanical Property | Coating Adhesion |
Yield StrengthMPa | Tensile StrengthMPa | Elongation% ≥ | Bending Center Diameter at Following Coating Weight (g/m²) (a=Plate
Thickness) |
La=80mm b=20(mm) |
At Following nominal Thickness ( mm) |
≤0.7 | >0.7 | ≤140/140 | >140/140-175/175 | >175/175 |
CS Type C | 140-350 | 270-500 | 20 | 22 | 0a | 1a | 2a |
CS Type A, Type B | 140-300 | 270-420 | 24 | 26 | 0a | 1a | 2a |
FS Type A, Type B | 140-260 | 270-380 | 28 | 30 | 0a | 1a | 2a |
