Process Data Sheet

EOS StainlessSteel 316L-4441 for EOS M 400 | 40/80 µm

EOS M 400 - 40/80 µm - TRL 3

Process Information Metal

This process product is optimized for flexible and fast production of 316L-4441 parts with EOS M 400-1 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.

Main Characteristics:
→ Parameter set for fast and cost efficient production of EOS StainlessSteel 316L parts in small series or serial production
→ Fast production achieved with only a minor decrease in quality

System Setup EOS M 400
EOS Material set 316L_040_080_Core M401
Software Requirements

EOSPRINT 2.11 or newer
EOSYSTEM 2.15 or newer

Recoater Blade HSS (High Speed Steel)
Nozzle Standard
Inert gas Argon
Sieve 63 µm
Additional Information
Layer Thickness 40/80 µm
Volume Rate 3.7 - 8.4 mm³/s
Typical Dimensional Change after HT [%] +0.02 %

Chemical and Physical Properties of Parts

Chemical composition of built parts is compliant to EOS StainlessSteel 316L powder chemical composition.

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 As Manufactured

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 500 600 45 - - -
Horizontal 570 670 35 - - -

Mechanical Properties As Manufactured

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 500 620 40 - - -
Horizontal 550 650 35 - - -

Surface Roughness

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