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Material

AISI 316L

Alloy

Fe / Ni / Cr

Wire feedstock(s)

AM 316LSi
3Dprint AM 316L

Summary

AISI 316 belongs to the austenitic stainless steel class. The addition of the alloying elements brings high corrosion resistance by the formation of a protective oxide layer on the material surface, with good ductility and thoughness. AISI 316L has lower C content, which improves the resistance to intergranular corrosion. These alloys are widely used in the chemical sector, food and process industry and maritime applications.

Mechanical properties
WAAM (build direction)
Compared to Annealed Sheet
Yield Strength
400 MPa
205 MPa
Ultimate Strength
580 MPa
515 MPa
Elongation
40%
40%
Printing strategy
Straight Lines
Heat treatment
Stress Relief
The above mentioned mechanical properties can vary according to design changes, process parameters optimization and strategy selection.
Use cases at RAMLAB

General remarks
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General explanation
Printing strategies
Straight lines strategy: several welding beads overlapped next to each other
Oscillation: continuous zig-zag bead that fills the entire layer

Heat treatement
Stress relief: due to the high residual stresses build up in the WAAM product, this heat treatment is necessary to minize residual stresses.