Air Conditioning Parts
Tool & Parts for service, maintenance
Aluminum Tube Coil
1. Alloy and temper: 1060, 1070, 3003,3102,3103 H112-O Temper
2. Surface quality: smooth, no crack, corrosion, and impurity.
3. Macroscopic organize: No shrinkage, crack, air hole & impurity
4. Gas sealing: Filling with Ni gas (＞1.00Mpa), keep the pressure for at least 30 minutes, to see the pressure gauge with decreasing or not. No leakage is accepted.
5. Bending testing: Bending at 1800 by 25mm bending radius, there is no visible crack.
6. Flattening: Pressing tube to be flat (inner wall distance same as wall thickness), no visible crack to be found.
7. Cleaning test: Clean the inner wall surface, without any pollution found, total impurity content remained 5~60mg/ m2
8. Tensile strength: 70-120 MPA
9. Elongation: 27-40%