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In this section you will find
information about the quality of our products, product specifications and
sizes, as well as general hints for installation. |
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When you buy any fence products
from us, you can be sure that you get palisade fences made from HOT ROLLED
ANGLE IRON (material thickness either 2mm or 2.5mm - your choice). |
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During the production process
in the steel plant e.g. Highveld Steel, ISCOR, the steel is rolled in red-hot
condition into angle iron, and then cooled down to normal temperatures.
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•
Its measurements are accurate and based on the norm and determined
by the 'South African Bureau Of Standards' (SABS). That means: when you
buy a panel from us, e.g. 3m wide x 2m high, 40x40x2mm angel iron, you can
rely on the fact that the angle's flanges are in fact 40mm & 40mm &
2.0mm. • Another very important
point: The physical properties (molecular structure) of the angle iron is
of such a nature, that it can only be bent by extreme forces. If you try
to bend it by hand or with a hammer, the angle iron jumps back into it's
original position. That means: Hot rolled angel iron is elastic up to a
certain point (elastic limit). The physical properties of hot rolled angle
iron is regulated by the SABS • The
material is strong & long lasting •
As the material is strong, it provides a good surface for galvanising.
Refer to our BOLTED PALISADE FENCE, which are now available as galvanised
panels. The advantages: lower transportation costs throughout South Africa
& they are easy to install.*
dimensions |
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None that we know of at this
moment. |
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Cold rolled angle iron is made
out of OFF-CUTS from sheet metal coils. Sheet metal coils are used e.g.
in the automotive industry for pressing the body parts of the car (bonnets,
doors). For this purpose, the sheet metal has to be soft. Some other fence
manufacturers use these soft strips for another purpose. They bend it in
cold condition into cold rolled angle iron, to make pales for palisade fences.
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It is cheaper than 40x40 HOT
ROLLED ANGLE IRON. |
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• No institution
in South Africa regulates the strength and measurements of these angles
• The spikes can be bent easily
with the thumb • The pales (uprights)
can be bent open between the top and bottom cross bar. Burglars typically
bend the pales of the fence and slip through the gap •
Cold rolled steel corrodes easily. Therefore the steel pieces are
oil treated. When you buy these fences, the oil is never properly removed,
or not removed at all. Disadvantage: paint does not stick to an oily surfaces,
and the paint will peel off after only a short time. •
Even if you take galvanised cold rolled fences, it can corrode, as
galvanising is a different kind of coating. Should the pales get bent there
is a break in the surface and corrosion sets in. •
Flanges of the angles are not accurate (we experienced tolerances
between 3 to 5mm) • In the long
run cold rolled angles are therefore more expensive and bring the industry
into discredit of delivering bad quality (corrosion of palisade fences,
inaccurate and weak angles) |
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