What is "hydronalium"

Hydronalium is a family of aluminium-magnesium alloys. It is an alloy predominantly of aluminium, with between 1%-12% of magnesium as the primary alloying ingredient. It also includes a secondary addition of manganese, usually between 0.4%-1%.

The Hydronalium alloys originated in Germany in the 1930s and are best known, at least by that name, in Eastern Europe. They were widely used for shipbuilding in Poland.

There are a large number of alloys within this family, one standard reference listing over twenty.

Mechanical properties

Alloy

Hardening

Tensile strength

Yield strength

Elongation

Hardness ( Brinell)

rowspan=2 | Hydronalium 2

Soft

30

47

Hard

8

77