Alloy materials and contact probes

Abstract

This invention provides an alloy material and a contact probe capable of suppressing casting defects. In the alloy material of this invention, when the weight percentage of silver (Ag) is set as X wt%, the weight percentage of copper (Cu) is set as Y wt%, and the weight percentage of platinum (Pt) is set as Z wt%, X, Y, and Z are within the composition range bounded by line segments connecting the points of the following compositions: (X=75, Y=5, Z=20), (X=20, Y=5, Z=75), (X=5, Y=20, Z=75), (X=5, Y=60, Z=35), and (X=75, Y=13, Z=12), and this composition range includes the values ​​on the line segments; and it contains ruthenium (Ru) and / or rhenium (Re), with a combined content of 0.05 wt% or more and 1.0 wt% or less; the remainder consists of unavoidable impurities.

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