<p>The invention relates to an amorphous metal alloy which may be used in the field of mechanical applications, in particular as a spring. This amorphous metal alloy corresponds to the formula FeaCObNicNbdVeBfTag in which: 0@a@70; 0@b@70; 8<c@60; 1@d@19; 1@e<@10; 12@f@25; 0@g@5; with 20@a+b@70; 50@a+b+c@90; 5@d+e@20; and a+b+c+d+e+f+g=100. </p>
