référence mèche alu

Salut
Chez JEFA
Characteristics of aluminium:

The mechanical and anti-corrosion characteristics of aluminium depend on the alloy elements. Pure aluminium is not usable for a high strength purpose like a rudder shaft. The most popular aluminium alloy for rudder shafts is AlMgSi1 (EN 6082). The addition of the alloy element magnesium extremely increases the mechanical properties proof stress and tensile strength. The addition of the alloy element silicon extremely increases the corrosion resistance of the aluminium. A hard and strong layer of silicon oxide SiO2 protects the aluminium even against the most hostile seawater. We use the following types of aluminium:

Aluminium AlMgSi1 (EN 6082)
The tensile strength is 340 N/mm2 , the 0.2 % proof stress is 280 N/mm2, the specific weight is 2.700 Kg/m³.
Aluminium AlZnMgCu1,5 (EN 7075)
The tensile strength is 520 N/mm2 , the 0.2 % proof stress is 460 N/mm2, the specific weight is 2.700 Kg/m³.

top ton info sur l alliage , jp3 doit etre bien mais pas dans le budget

Bonjour,
En 6060 tu dois pouvoir trouver cela chez Almet Marine.
Les bras de mon petit trimaran viennent de chez eux.
www.almet-marine.com[...]-FR.pdf
Jac