P1020
The most traded primary aluminum grade in the world, with a minimum 99.7% purity.
P1020 is the standard primary aluminum grade traded globally on the London Metal Exchange (LME). With a minimum of 99.7% aluminum, it is the base material for remelting and manufacturing alloys requiring low iron content and minimal trace elements. Ideal as the base for high-purity alloys like A356.2.
International Nomenclature
| Standard | Designation |
|---|---|
| LME | P1020 / P1020A |
| AA (USA) | 1070 / P1020A |
| EN (Europa) | EN AW-1070A · Al99.7 |
| DIN (Alemania) | Al99.7 / 3.0275 |
| ISO | Al 99.70 |
Chemical Composition
| Element | Symbol | Percentage |
|---|---|---|
| Aluminum | Al | ≥99.70% |
| Iron | Fe | ≤0.20% |
| Silicon | Si | ≤0.10% |
| Copper | Cu | ≤0.01% |
| Zinc | Zn | ≤0.01% |
| Others (each) | — | ≤0.03% |
Physical Properties
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Point | 660 °C |
| Thermal Conductivity | 231 W/m·K |
| Electrical Conductivity | 62% IACS |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (UTS) | 70–80 MPa |
| Yield Strength | 20–30 MPa |
| Elongation | 40–50% |
| Hardness | ~18 HB |
Key Characteristics
- London Metal Exchange (LME) standard grade for primary aluminum
- Ideal base for manufacturing high-purity alloys (A356.2, etc.)
- Low iron and trace content for demanding applications
- High thermal and electrical conductivity
Industries & Applications
Foundry
Remelting base for high-purity alloys, iron dilution in secondary alloys
Electrical
Electrical conductors, high-voltage cables, bus bars
Automotive
Base for wheel alloys (A356.2) and low-iron structural components
Special Notes
P1020A is the standard delivery grade on the LME. We commercialize it as base material for customers needing to produce high-purity alloys or dilute iron in their secondary aluminum. Essential for producing A356.2 and other alloys requiring Fe ≤0.12%.
Need P1020?
We manufacture this alloy in ingots, donuts, and bars to your exact specifications.