The present invention provides a surface treatment material or the like that exhibits suppressed deterioration of the characteristics of the surface of a surface treatment
coating, particularly the characteristics of
contact resistance and solder wettability when used in a high temperature (200 DEG C, for example) environment, without adversely affecting bending workability. The surface treatmentmaterial (1) according to the present invention has a conductive substrate (2) and a surface treatment
coating (4) comprising at least one
metal layer formed on the conductive substrate (2). The surface treatment
coating (4) is a plating coating, is formed on the entire surface of the conductive substrate (2) or a portion thereof via a
zinc-containing layer (3) having a thickness of 50 nm or lessand having
zinc as a main component, or is formed on the conductive substrate (2) without using the
zinc-containing layer (3), and has a bonding area percentage of 85% or more where the bonding area is the test area as measured using the tape test method stipulated by JIS H8504:1999.