Aluminum Clad Copper tube (ACC tube) applied in air conditioner and refrigerator are used superior grade of 3003 aluminum and C11000 Copper. ACC tube is a new material with all advantages of copper tubes, which saves more than 30% purchase cost. Specifications of Aluminum Clad Copper Tube: 1) Grade: C11000copper, 3003aluminum 2) Outside Diameter: 6.35mm – 19.05mm 3) Wall Thickness: 0.5mm – 1.20mm 4) Tensile: 110MPa – 130MPa 5) Expanding: 40% – 50% 6) Blast pressure: 180MPa