Process Data Sheet

EOS StainlessSteel 2507 for EOS M 290 | 40/80 µm

EOS M 290 - 40/80 µm - TRL 3

System Setup EOS M 290
EOS Material set SuperDuplex_040_080_CoreM291
Powder Product No. 9030-0035
Software Requirements

EOSPRINT 2.9 or newer
EOSYSTEM 2.12 or newer
Recoater Blade Ceramic
Nozzle EOS Grid Nozzle
Inert gas Argon
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

Etched micrograph. Heat treated state.

Microstructure of the Produced Parts

Defects Thickness Result Number of Samples
Average Defect Percentage 40 µm 0.06 % -
Average Defect Percentage 80 µm 0.1 % -
Density EN ISO 3369 Thickness Result Number of Samples
Average Density - ≥ 7.70 g/cm³ -

Mechanical Properties

Mechanical Properties Heat Treated

EN ISO 6892-2 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 570 850 34 - - -
Horizontal 570 860 33 - - -

Solution annealing: Hold temperature 1100 °C, hold time 1-2 h when thoroughly heated, water quenching.

Mechanical Properties Heat Treated

EN ISO 6892-2 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 570 860 34 - - -
Horizontal 560 860 33 - - -

Solution annealing: Hold temperature 1100 °C, hold time 1-2 h when thoroughly heated, water quenching.

Impact Toughness

EN ISO 148-1, Charpy-V Heat Treated
Typical Impact Toughness [J] 100
Layer Thickness 40 µm
EN ISO 148-1, Charpy-V Heat Treated
Typical Impact Toughness [J] 100
Layer Thickness 80 µm

Surface Roughness

Surface Roughness From To
Sa (µm) - -
Ra (µm) - -

Coefficient of Thermal Expansion

ASTM E228 Temperature
12.53*10-6/K 25 – 100 ºC
13.42*10-6/K 25 – 200 ºC
13.79*10-6/K 25 – 300 ºC
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