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Al₂O₃Cu   Copper –based metal matrix composite alloys mixed 12-25 nm aluminum oxide particles, with high elevated temperature strength, high hardness, excellent electrical conductivity, increases the copper’s resistance to thermal softening.

Manufacturing flow: internal oxidation of Cu-Al alloy – isostatic pressing – sintering – hot extrusion – drawing – machining.

Applications:

Electrical industry: large microwave tube, conducting material, selector switch, silver contacts, lead frame material and electronic packaging.

Component and consumable: resistance welding electrode, battery spot welding electrode, low temperature metal coating spot welding electrode, galvanized steel sheet spot welding electrode, lead-coated steel plate spot welding electrode, or other high temperature resistant equipment parts.

Specification:  bar, and we can produce according to your drawing

Chemical composition: Al₂O₃  -- 0.6% , copper balance

Physical property:

Density: 8.81g/cm³

Melting point: 1083^oC(1967^oF)

Coefficient of thermal expansion: 16.6μm/m/℃（20-150℃） 

Electrical conductivity: 78%IACS Min

Hardness: 80HRB Min

Thermal conductivity: Btu/ft.2/ft./hr./°F at 68°F: 186

Elastic modulus: 130Gpa

International standards: ASTM C15760 ,ASTM C 15725, ASTM C15715,AL-60,AL2Q3Cu,D-TEK