S690
Alloy: Fe / C / Si / Mn / Cr / Mo
Wire feedstock: To be published
Summary
S690 is a high yield structural steel used in lifting equipment, the construction industry and offshore industry.
Mechanical properties
The mentioned mechanical properties can vary according to design changes, process parameters optimization and strategy selection.
WAAM (z- dir.)
WAAM (z- dir.)
Compared to trad. S690
Straight lines
Oscillation
YSt * (MPa)
733
533
690
USt ** (MPa)
830
790
770- 940
El ***
19.5%
21.5%
14%
No additional heat treatment was applied after production.
* Yield Strength
** Ultimate Strength
*** Elongation
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.
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vincent@ramlab.com
