For greater resilience to oxidation which sometimes affects pre-galvanised wire cages, there is the option of a new coating called Bezinal ®, which offers an improvement of two to three times the resilience to corrosion over galvanised wire of the equivalent weight. Bezinal ® is a Zinc + Aluminium coating which is both ductile and homogenous with an excellent degree of mechanical deformation and an is also an excellent conductor of static electricity due to its aluminium composition.
The galvanised wire employed in the fabrication of galvanised cages is produced by hot immersion in a Zn bath at 450ºC which produces a continuous covering of metallic zinc on the Steel wire, creating an impervious barrier which isolates the surface of the Steel from the corrosive environment.
The unique structure of galvanised coatings offers many advantages with respect to other coatings.
The galvanised coating is united with the Steel base, giving it a coating whose adherence is superior to any other.
The galvanised wire can be welded with the same ease as black Steel, although welding produces a loss of the zinc layer, not only at the Weld point, but in the area around it which has been superheated
This loss of zinc provokes the reappearance of red oxide in only these zones. Years of experience gained over many years of use and experimentation have amply confirmed the capacity for galvanised Steel to reduce the risks of corrosion to cages.
EN 1.4306/AISI 304L: The most austenitic stainless steels in the Cr-Ni group are the most versatile and most extensively used steels. The possess good rustproofing, conformability and welding properties. The AISI 304L Steel is less susceptible to intergranular corrosion tan AISA 304 because of its lower carbon content.
EN 1.4404/316L : The most austenitic stainless steels in the Cr-Ni-Mo group contain Mo to increase resilience to corrosion from pitting.
Los del tipo L (low carbon content) also have a reduced susceptible intergranular corrosion, because the precipitation of carbides of Cr are avoided in applications which involve its use at sensitive temperatures, such as welding.
EN 1.4571 /AISI 316 TI: The most austenitic stainless steels in the Cr-Ni-Mo group to increase resilience to corrosion from pitting. AISA 316 TI, being stabilised with Ti, are also less susceptible to intergranular corrosion, because the precipitation of carbides of Cr are avoided in applications which involve its use at sensitive temperatures, such as welding
DUPLEX EN-1.4462 : Is a duplex stainless, whose microstructure is formed from ferrite and austenite at an approximately 50:50 ratio, so that the best properties of these stainless families. The presence of these phases gives this Steel great mechanical toughness and good corrosion resistance.
DUPLEX EN-1.4482 : Is a low alloy duplex Steel whose microstructure consists of ferrite and austenite at an approximately 50:50 ratio. As for its mechanical properties; it possesses an elastic limit that is twice as high as AISA 304 and AISA 316 and good conformability. It also has good corrosion resistance.
