Product name | Galvanized Corrugated Steel Sheet |
Thickness | 0.12mm-1.2mm |
Width | 600-1200mm |
Zinc coatin | AZ40g/m2-AZ275g/m2 |
Painting | Top side:10-25 microns, back side 5-10 microns |
Shape | Waves / Trapezoid etc |
Spangle | No spangle , min spangle , regular spangle |
Standard | ASTM AISI JIS DNS GB etc |
Package | Mill standard export seaworthy packing |
MOQ | 5 tons |
Application | 1. Fence, greenhouse, door pipe,greenhouse
2. Low pressure liquid, water, gas, oil, line pipe
3. For both indoor and outdoor the building construction
4. Widely used in scaffolding construction which is much cheaper
and convenient |
Payment terms | L/C , T/T |
Inspection | Factory Inspection certificate will be issued for every shipments. |
Hot dip galvanized and cold galvanized difference is as follows:
1, hot dip galvanized as metal anti-corrosion way, it will usually
be around 500 ℃ derusting processing steel structure in liquid
zinc, zinc layer on the surface of steel structure. Cold
galvanizing is through electrolysis adhered on the surface of the
metal material such as a layer of metal film, make the material
surface texture is uniform and anticorrosive wear-resisting,
external appearance more beautiful.
2, hot dip galvanized coating thicker, generally for 30 to 60
micrometers, coating anticorrosion ability is higher. Suitable for
outdoor work steel parts, such as highway fence, power tower,
large-sized fasteners are "rough" long-term rust artifacts. Cold
galvanizing, surface smooth level off, but because of the coating
is thin, generally within 5-30 microns, so the corrosion time is
short. Are used in indoor use the rust parts, such as the bottom of
the chassis, panels, small specification fasteners, etc.
3, hot dipped galvanized by the principle of atmospheric corrosion
resistant zinc, electrochemical protection, the material such as
iron and steel for zinc carbonate on the surface of the protective
film can reduce the speed of the zinc corrosion, even if broken,
will form of zinc film layer again. Cold galvanizing is to use
chemical ways, separating the zinc alloy into zinc ions, has
attached on the steel surface, this way to form new layer is
thinner, the iron and steel in the general case, prone to rust.
4, cold galvanized surface is smooth, bright, colorful passivation
technology of galvanized coating can present yellowish green, white
passivation technology of plating can present bluish white, usually
only a small amount of zinc layer on both ends of the steel tube of
cold galvanization, there is no galvanized layer in the farther.
Galvanized surface is rough, the color is darker, general is
silvery white, because production occurs on the surface of 1 order
in some water lines and tumor, surface is not shine, nor
reflection. Hot dip galvanized steel pipe internal and external are
complete galvanized layer.
