| 摘要 |
A copper brazing filler metal includes Ni in an amount of from 20 or more to 36% or less by mass, Mn in an amount from 19 or more to 30% or less by mass, Fe in an amount of from 0 or more to 16% or less by mass, Si in an amount of from more than 0 (not inclusive) to 2% or less by mass, B in an amount of from 0.1 or more to 0.5% or less by mass, and the balance being copper (Cu) as well as inevitable impurities and/or a modifying element, when the entirety is taken as 100% by mass. Moreover, the copper brazing filler metal exhibits a ratio of the Ni content with respect to the Mn content (i.e., (Ni Content)/(Mn Content)) that falls in a range of from 1.1 or more to 2 or less when being free from Fe. |
