Nickel-free bulk amorphous alloy, formed, in atomic percent, of: a zirconium and/or hafnium base, forming the balance, with a total zirconium and hafnium value greater than or equal to 52.0, and less than or equal to 62.0; copper: greater than or equal to 16.0, and less than or equal to 28.0; iron: greater than or equal to 0.5, and less than or equal to 10.0; aluminum: greater than or equal to 7.0, and less than or equal to 13.0; at least two additional metals taken from the family including Ti, V, Nb, Y, Cr, Mo, Co, Sn, Zn, P, Pd, Ag, Au, Pt, Ta, Ru, Rh, Ir, Os, and Hf when the base contains none, and Zr when the base contains none, with the cumulative atomic percentage of these additional metals being greater then 6.0 and less than or equal to 10.0.