EOS Aluminium Al5X1 for EOS M 290 | 40 µm
EOS M 290 - 40 µm - TRL 3
Process Information Metal
EOS Aluminium Al5X1 is a heat-treatable aluminum alloy designed for AM to offer a compelling combination of high strength and high elongation. Al5X1 exhibits excellent mechanical properties with a
strength above 400 MPa and an elongation exceeding 13% after heat treatment. The recommended single-step heat treatment does not require a water quench and enables robust part production.
| System Setup | EOS M 290 |
|---|---|
| EOS Material set | Al5X1_040_CoreM291_100 |
| Powder Product No. | 9030-0017 |
| Software Requirements |
EOSPRINT 2.11 or newer |
| Recoater Blade | HSS (High Speed Steel) |
| Nozzle | EOS Grid Nozzle |
| Inert gas | Argon |
| Sieve | 75 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 40 µm |
| Volume Rate | 4.8 mm³/s |
Chemical and Physical Properties of Parts
The chemical properties of the parts are the same as that of the powder.
Etched micrograph in heat treated state
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | 40 µm | 0.15 % | - |
| Density EN ISO 3369 | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Density | 40 µm | 2.69 g/cm³ | - |
Mechanical Properties
Mechanical Properties Heat Treated
| ASTM E8 Room Temperature | 40 µm | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 380 | 415 | 14.5 | - | - | - |
| Horizontal | 385 | 415 | 14.5 | - | - | - |
ASTM E8, strain rate 0.00762 mm/s
Mechanical Properties As Manufactured
| Room Temperature | 40 µm | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 240 | 310 | 23 | - | - | - |
| Horizontal | 260 | 310 | 23 | - | - | - |
Tensile testing as per ASTM E8, strain rate 0.00762 mm/s
Hardness
| Heat Treated | |
|---|---|
| Value | 127 |
| Unit | HBW 2.5/62.5 |
Brinell
| Heat Treated | |
|---|---|
| Value | 71 |
| Unit | HRB |
Rockwell
| As Manufactured | |
|---|---|
| Value | 86 |
| Unit | HBW 2.5/62.5 |
Brinell
| As Manufactured | |
|---|---|
| Value | 40 |
| Unit | HRB |
Direct aging heat treatment
6 hours at 400 °C. Immediate gas quenching (air cooling
with maximal air flow).
Preferred inert atmosphere during furnace treatment.
Rockwell
Thermal Conductivity
| ASTM E1461-13 | Orientation | [W/m*K] |
|---|---|---|
| Heat Treated | Vertical | 132 |
Surface Roughness
| Surface Roughness | From | To |
|---|---|---|
| Sa (µm) | - | - |
| Ra (µm) | - | - |
Specific heat capacity at 25°C
| AST E1269-11 Heat Treated | |
|---|---|
| Value | 0.87 |
| Unit | J/g/°C |
Anodization
SEM image of the anodizing layer.
Anodized according to Mil-A-8625 Type III
Thickness of anodization layer
depends on used anodization
process.
Electrical Conductivity
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| As Manufactured | 40 µm | | Vertical | 23 |
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| Heat Treated | 40 µm | | Vertical | 34 |