Island A - warning long post Forum: SSI-List
Thread: Island A - warning long post
# 14726 byhollroa@... on April 27, 2001, 4:37 a.m.
Member since 2022-08-22
I have been examining the use of various structural materials that could be used
for the construction of Pressure hulls for SMF's. An alloy usually associated
with marine work would seem to be a good choice. The alloy is a blend of 90%
Aluminium and 10% Magnesium. The alloy is heat treated at 425degC for 8 hours,
then cooled to 390degC and then quenched in oil at 160degC or in boiling water.
The Tensile strength of the alloy is 320N/mm2 when heat treated, and its
elongation at failure is 18%. Both Mg and Al can be found in abundance in lunar
highland materials.