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CP 50
PROCESSING DATA
I
GENERAL
I.1
INTRODUCTION
The Reynaers constructions are realized with aluminium profiles extruded in the EN-AW6060 T66
alloy. The mechanical characteristics conform to the standard EN 755 part 2, with modulus of elasticity
70 kN/mm². The tolerances are based on EN 12020 part 2.
Because of the high demands made upon the Reynaers aluminium constructions, it is necessary that
the fabricator respects the minimum quality requirements when storing, fabricating, assembling and
fitting elements. It is also important that the fabricator is highly skilled, not only in the processing of the
materials used, but also regarding the concept. It is for instance important that during the construction
sufficient attention is paid to the drainage. Furthermore there should not be any details which are
subjected to moisture and dirt for an extended period, such as capillary joints.
In the following notes the main requirements are described.
I.2
ALUMINIUM IN CONTACT WITH OTHER MATERIALS
I.2.1
Metals
When two metals of differing electro-negativity values come into contact in humid conditions, an
electrical tension and oxidizing influence are experienced by the more electro-negative metal.
Aluminium is electro-negative com-pared to most metals.
Unprotected steel rusts and attacks aluminium. In order to avoid corrosion on aluminium, an insulating
barrier should be placed between both metals (e.g. zincplate the steel min. 35 microns).
Contact with stainless steel on the other hand (e.g. 18/8) has not been found to be harmful to
aluminium to date.
Contact with copper or its alloys (bronze-brass) is harmful. It is absolutely essential to insulate the
two metals.
Lead is considerably more electropositive than aluminium, and therefore insulation is necessary.
I.2.2
Timber
Most timbers have no harmful effects on aluminium. Some such as oak and walnut however, produce
acids which attack and damage aluminium – especially in humid conditions or when the timber itself is
not dry. Insulation is required here, e.g. using a bituminous paint.
When you treat the timber against humidity or against insects, you should ensure that the substances
used are not harmful to aluminium. Products containing for example copper salts, mercury salts or
fluoride compounds may not be applied.
I.2.3
Lime / Cement
In humid conditions, lime or cement reacts with aluminium (even when anodized) revealing superficial
white sports on the surface of the metal after cleaning. It is advisable to protect the metal by means of
a tape. We recommend for example Reynaprotect art.no. 084.9135.--, 084.9136.-- and 084.9137.--.
I.2.4
Other materials
03/2003
Información general sistema
Généralités séries
General information systems
Allgemeine Information Systeme
PRESCRIPCIONES DE TRATAMIENTO
RECOMMANDATIONS DE TRAITEMENT
PROCESSING DATA
VERARBEITUNGSVORSCHRIFTEN
37.B.051
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