AL ALLOY CLAD MATERIAL FOR STRUCTURAL MEMBER OF AUTOMOTIVE HEAT EXCHANGER EXCELLENT IN PITTING CORROSION RESISTANCE

摘要

PURPOSE: To obtain an Al alloy clad material for a structural member of an automotive heat exchanger excellent in pitting corrosion resistance. ;CONSTITUTION: At least one side of a core material of an Al-Mn alloy contg. 0.5-2wt.% Mn is clad with a sacrificial anode material of pure Al or an Al alloy contg. ≤0.1wt.% Mn to obtain the objective Al alloy clad material having 200-300μm total thickness and 60-150μm thickness of the sacrificial anode material.;COPYRIGHT: (C)1995,JPO