Aluminum alloy clad sheet for heat exchanger

An aluminum alloy clad sheet, comprising:

• (i) a core layer;
• (ii) a sacrificial layer disposed on one side of the core layer;
• and
• (iii) a brazing layer comprising an Al—Si alloy disposed on the other side of the core layer,
• wherein the core layer (i) comprises Al and, by mass,
• Si:
• 0.15% to 1.6%,
• Mn:
• 0.3% to 2.0%,
• Cu:
• 0.1% to 1.0%, and
• Ti:
• 0.02% to 0.30%,
• wherein the sacrificial layer (ii) comprises Al and, by mass,
• Zn:
• 4.0% to 10.0%,
• Cr:
• 0.01% to 0.5%,
• Si:
• 1.0% or less, excluding 0%,
• Mn:
• 2.0% or less excluding 0%,
• wherein a maximum size of Al—Mn, Al—Mn—Si, and Al—Cu intermetallic compounds precipitated in the sacrificial layer (ii) after brazing heating at 595° C. for 3 minutes in an electron micrograph of a cross section of the sacrificial layer (ii) vertical to a rolling direction of the sacrificial layer (ii) ranges from 10 nm to 1 μm in terms of equivalent circular diameter,
• wherein a number density of Al—Mn, Al—Mn—Si, and Al—Cu intermetallic compounds having an equivalent circular diameter in a range of 10 nm to 1 μm is 1×105/mm2 or more, and
• wherein an area percentage of Al—Mn, Al—Mn—Si, and Al—Cu intermetallic compounds having an equivalent circular diameter in the range of 10 nm to 1 μm is 4% or less.