Manganese is also an alloying element addition to other metals. An
alpha-beta titanium-base alloy contains 8% manganese and was used for the
Gemini re-entry control module in the 1960's.
Manganese is used in zinc alloys, but only at contents of 0.1 to 0.2%.
It can also be used in magnesium alloys with the same content range, with the
one exception of an alloy with 1.5% Mn.
Manganese can also be added to gold, silver, bismuth etc., to give
alloys which are used for very specific applications, generally related to the
electronic industry. The quantities involved are very small.