A family of copper alloys sometimes used as material for perishable tube-bending tooling (i.e., mandrels, wipers, and static pressure dies). Aluminum-bronze is preferred over alloy steel as the material for perishable tooling to bend carbon steel, stainless steel, titanium, and nickel alloy tubing because it tends to break down into fine particles instead of galling (i.e., welding relatively large pieces of itself) to the tubing as it wears. Aluminum-bronze is available in various grades and names.