INFORMATION PALISADE FENCES
you find information, why it is important to look at the quality
of palisade fences.
we supply you with our product specifications & sizes,
and general hints for installation.
Steel Palisade Fences
of steel, the difference between hot rolled & cold rolled
Dip Galvanizing of Palisades
STANDARDS ON STEEL PALISADE FENCES
Angle Iron, hot rolled, commercial quality (structural steel):
palisades are manufactured with structural equal leg angle iron.
Commercial Quality C 0,30% max.
ISO R657 v. 1976
Indentification Certificate complies with DIN50049 3.1B and
BS EN 10204 3.1B
SABS* ISO 1461
*= South African Bureau of Standards
Sizes & Measurements:
QUALITY OF STEEL
you buy any fence products from us, you can be sure that you
get palisade fences made up with HOT ROLLED ANGLE IRON
(material thickness either 2mm or 2.5mm, other thickness only
for large orders).
is HOT ROLLED ANGLE IRON?
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. Hot rolled
angle iron is structural steel.
are the advantages of hot rolled angle iron:
It's measurements are accurate and based on the norm and determined
by the 'South African Bureau Of Standards' (SABS).
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 are
to SABS standards.
very important point: The physical properties (molecular structure)
of the angle iron is of such nature, that it can only be bent
by heavy forces. If you try to bend it by hand or with a hammer,
the angle iron is elastic and goes 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
material is strong & long lasting
the material is strong, it provides a good surface for galvanizing.
Refer to our BOLTED
PALISADE FENCE, which are as well available as galvanized
advantages of hot rolled angle iron Bolted Palisade Fence:
transportation throughout South Africa
can be filled up to capacity (weight limit) especially for
product, especially for export!!!
stacking necessary on uneven ground and same gap at the bottom
fence can be dismantled and re-erected at other locations
is COLD ROLLED ANGLE & PROFILES?
rolled angle is made out of OFF CUTS from sheet metal coils.
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.
fence manufacturers use these soft strips for another purpose
than it is made for. They bend it in cold condition to angles,
to make pales for palisade fences.
are the disadvantages of cold rolled angle:
No institution in South Africa regulates the strength and
measurements of these angles
spikes can be bent easily with the thumb
pales (uprights) can be bent open between the top and bottom
cross bar, Housebreakers bend the pales of the fence easily
and slip through the gap
rolled steel corrodes easily because the steel pieces are
oil treated. When you buy these fences, the oil is never properly
removed. Disadvantage: paint does not stick on oily surfaces,
and the paint will peel off after a short time.
galvanized cold rolled fences can corrode, as galvanizing
is a different kind of coating only. Should the pales get
bent there is a break in the surface and corrosion starts.
of the angles are not accurate (we experienced tolerances
up to 8mm)
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).
HOT DIP GALVANIZING OF PALISADES
Steelworks provides on customers request Hot Dip galvanized
Palisade Fences, Wall Extension Palisades, Wall Spikes &
Shark-Teeth Spikes. The galvanizing is carried out to SABS ISO
1461 (SABS 763) standards.
on the area within South Africa guarantees are available
up to 15 years.
palisades our hot rolled angle iron Bolted
Palisade Fences are an ideal solution because of these reasons:
welding involved, therefore no lapse of guarantee
most economical size of 3m width possible without double dipping
Single dipping cheaper rates are applicable than for double
applicable depending on the area within South Africa
adhesion is obtained through metallurgical bonding
is no drying (cure) time needed before use
coating is tough and as thick as the general surface at vulnerable
corners, providing equal protection
site coating is not necessary, erection time is considerably
initial costs compared to paint systems. Paint application is
very labour intensive
application requires stringent on site inspection and control
Dip Galvanizing is factory applied, closely controlled process
Dip Galvanizing to SABS ISO 1461 (SABS
763) is maintenance free
Dip Galvanizing protects steel in two ways:
protection by the provision of a corrosion resistant barrier
protection of any damaged areas. This prevents under film
of Hot Dip Galvanizing - Guideline, with average coating of
Rate uncoated Mild Steel
less than 50m from H.W.M.
usually 50m to 1km from H.W.M.
1km to 40km from sea
40km to100km from sea
less than 10nm/year
less than 5nm/year
< 0.8 nm/year
< 0.5 nm/year
PALISADE SIZES & MEASUREMENTS
WALL SPIKES SIZES
HINTS FOR INSTALLATION DIY:
you want to install the palisade fences yourself, here are
a few hints:
not plant all the posts first, and then insert the
palisade fences in-between. Rather plant two posts, weld a
palisade panel, plant one post, weld a palisade panel, and
steel pieces (anchors) on the bottom of the posts, so that
nobody can pull them out after the concrete has dried out.
Please note: our posts include the flat pole cap & the
bottom mounting anchors
you plant the posts, use a water level
you need a gate, and you have never welded before, rather
ask us, we can manufacture the gate(s) for you
you still want to weld something yourself, remove all thinners
& paint from the welding place, as thinners / paint might
catch fire from welding sparks
it rain, or the ground is wet, do not use electricity
any electrical extensions and cables so that nobody can step
only proper electrical devices
in a welding arc can cause serious damages to the eyes, wear
a proper welding helmet
steel is very sharp, to avoid injuries, wear thick leather
gloves during handling and installation
not rush, accidents occur then
note: welding is a trade. There are many more things to know.
If you want quality work, it is better, if the job is done
by a professional
H. R. BOLTED PALISADE FENCE
is easy to install, if you want to avoid welding, rather go
for this option.
note: we do not take any responsibility for any damage
or injuries whatsoever.
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