The invention relates to a multi-layered brazing sheet material having an aluminium core alloy layer provided with a first brazing clad layer material on one face of said aluminium core layer and an inter-layer inter-positioned between the aluminium core alloy layer and the first brazing clad layer material, wherein the core layer is made from an aluminium alloy comprising, up to 0.6% Si, up to 0.45% Fe, 0.6% to 1.25% Cu, 0.6% to 1.4% Mn, 0.08% to 0.4% Mg, up to 0.2% Cr, up to 0.25% Zr, up to 0.25% Ti, up to 0.3% Zn, balance aluminium, wherein the first brazing clad layer is made from an 4xxx-series aluminium alloy having 6% to 14% Si and up to 2% Mg, balance aluminium, and wherein the inter-layer is made from an 3xxx- series aluminium alloy comprising, up to 0.4% Si, up to 0.5% Fe, up to 0.8% Cu, 0.4% to 1.1 % Mn, up to 0.04% Mg, up to 0.2% Cr, up to 0.25% Zr, up to 0.25% Ti, up to 0.3% Zn, balance aluminium.