EOS StainlessSteel 17-4PH for EOS M 290 | 40/80 µm
EOS M 290 - 40/80 µm - TRL 3
Process Information Metal
This process product is optimized for flexible and fast production of 17-4PH parts with EOS M 290 system. The parameter set has three different layer thickness options that can all be utilized within the same build: 40µm, 80 µm and 40/80 µm Skin. For high productivity needs a 80 µm parameter set is included with a build rate more than double the long established 40 µm parameter set. Both can be used separately for different parts or combined by using 40/80 µm Skin with faster 80 µm for the core of the part and higher quality 40 µm building for the surface of the part with defined thickness. Sectionioning parts in vertical direction for different parameters is also possible.
| System Setup | EOS M 290 |
|---|---|
| EOS Material set | 17-4PH_040_080_Core M291 |
| Required Software Plan | EOS BUILD |
| Software Requirements |
EOSPRINT 2.14 or newer |
| Recoater Blade | Ceramic |
| Nozzle | EOS Grid Nozzle |
| Inert gas | Argon |
| Sieve | 75 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 40/80 µm |
| Volume Rate | 4.1-7.9 mm³/s |
| Typical Dimensional Change after HT [%] | +0.2 % |
Chemical and Physical Properties of Parts
Etched micrograph of powder
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | 40 µm | <0.1 % | - |
| Average Defect Percentage | 80 µm | <0.2 % | - |
Mechanical Properties
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | 40 µm | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 1240 | 1360 | 14 | - | - | - |
| Horizontal | 1240 | 1360 | 14 | - | - | - |
H900 Heat treatment
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | 80 µm | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 1240 | 1360 | 13 | - | - | - |
| Horizontal | 1230 | 1355 | 14 | - | - | - |
H900 Heat treatment
Impact Toughness
| EN ISO 148-1, Charpy-V Heat Treated | |
|---|---|
| Typical Impact Toughness [J] | 20 |
| Layer Thickness | 40 µm |
H900 Heat treatment
| Heat Treated | |
|---|---|
| Typical Impact Toughness [J] | 20 |
| Layer Thickness | 80 µm |
H900 Heat treatment
Surface Roughness
Surface roughness of powder