Process Data Sheet
EOS CaseHardeningSteel 20MnCr5 for EOS M 400-4 | 40/80 µm
EOS M 400-4 - 40/80 µm - TRL 3
| System Setup | EOS M 400-4 |
|---|---|
| EOS Material set | 20MnCr5_040_080_CoreM404 |
| Software Requirements |
EOSPRINT 2.13 or newer |
| Recoater Blade | Ceramic |
| Nozzle | Standard |
| Inert gas | Nitrogen |
| Sieve | 75 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 40 µm, 80 µm, 40/80 µm |
| Volume Rate | 4.1 - 7.9 mm³/s |
Chemical and Physical Properties of Parts
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 A [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 1310 | 1510 | 8 | - | - | - |
| Horizontal | 1300 | 1500 | 8 | - | - | - |
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | 80 µm | | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 1270 | 1490 | 8 | - | - | - |
| Horizontal | 1270 | 1490 | 8 | - | - | - |
Impact Toughness
| EN ISO 148-1, Charpy-V As Manufactured | |
|---|---|
| Typical Impact Toughness [J] | 30 |
| Layer Thickness | 40 µm |
| EN ISO 148-1, Charpy-V As Manufactured | |
|---|---|
| Typical Impact Toughness [J] | 30 |
| Layer Thickness | 80 µm |
Surface Roughness
Coefficient of Thermal Expansion
| ASTM E228 | Temperature |
|---|---|
| 12.8*10-6/K | 25 – 100 ºC |
| 13.7*10-6/K | 25 – 200 ºC |
| 15.1*10-6/K | 25 – 300 ºC |
| 15.1*10-6/K | 25 – 400 ºC |