

What is 1350 aluminum foil alloy?
1350 aluminum foil is a high-purity aluminum alloy. Aluminum coil “1350” refers to the alloy’s minimum aluminum content, which is 99.50%. 1350 is a commercially pure aluminum alloy often used in electrical applications due to its high conductivity and other desirable properties. Aluminum foil in 1350 alloy is the most frequently used product type.

1350 chemical composition of aluminum foil
The elemental content of aluminum foil made from 1350 aluminum alloy is primarily aluminum, with a minimum purity of 99.50%.
| 1350 alloy foil metal element content(%) | |||||||||
| Element | Al | Si | Fe | Mg | Zn | Mn | Ti | Cu | V |
| Standard Value | ≥99.5 | 0.0431 | 0.203 | 0.0013 | 0.0093 | 0.0104 | 0.02 | 0.0022 | 0.0039 |
Aluminum foil alloy 1350 properties (theoretical)
| Compound Formula | Al |
| Appearance | Metallic powder or solid in various forms |
| Melting Point | 660℃ |
| Boiling Point | 2500℃ |
| Density | 2.6-2.8 g/cm³ (25 °C) |
| Electrical Resistivity | 28 10-9W·m |
| Poisson’s Ratio | 0.33 |
| Tensile Strength | 97 Mpa |
| Thermal Conductivity | 230 W/m·K |
1350 aluminum foil for transformer
1350 aluminum foil is a commonly used material in transformers. It has good electrical conductivity and corrosion resistance, so it has been widely used in transformer manufacturing.
1350 cable aluminum foil application specifications.
| 1350 O Aluminium Foil For Transformer Winding | |||||||
| Alloy | Temper(annealed) | Thickness(mm) | Tensile Strength | ||||
| Tensile Strength(Mpa) | Elongation(%) | ||||||
| >0.2~4.0 | ≥25 | ||||||
| Thickness Tolerance(mm) | |||||||
| Thickness(mm) | Tolerance(mm) | ||||||
| >0.20~0.40 | ±0.02 | ||||||
| >0.40~0.80 | ±0.03 | ||||||
| >0.80~1.10 | ±0.04 | ||||||
| >1.10~1.40 | ±0.05 | ||||||
| >1.40~2.00 | ±0.06 | ||||||
| >2.00~2.50 | ±0.07 | ||||||
| >2.50~3.00 | ±0.08 | ||||||
| Width Tolerance(mm) | |||||||
| Width(mm) | Thickness(mm) | ||||||
| ≤1.0 | >1.0~1.5 | >1.5~2.5 | |||||
| Width Tolerance(±) | |||||||
| ≤100 | 0.1 | 0.2 | 0.25 | ||||
| >100~300 | 0.15 | 0.25 | 0.3 | ||||
| >300~600 | 0.3 | 0.4 | 0.5 | ||||
| >600~1000 | 0.6 | 0.7 | – | ||||



