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Material

Stellite 6

Alloy

Co / Cr / W / C

Wire feedstock(s)

WT-6 GMAW-C

Summary

Stellite 6 is a cobalt base superally consisting of a matrix containing dispersed carbides. It is a wear resistance alloys, with excellent corrosion and mechanical properties up to 500 deg C. Becuase of its properties it used in valves seats and gates, pump shafts and bearings, erosion shields and rolling couples, but also aero engines, gas turbines and nuclear industry.

Highlights

This material can be printed in combination of a wide variety of steel grades, AISI 316 and 316L

Mechanical properties
WAAM (build direction)
Compared to Casting
Yield Strength
620 MPa
700 MPa
Ultimate Strength
1100 MPa
850 MPa
Elongation
3%
<1%
Printing strategy
Straight lines
Heat treatment
/
The above mentioned mechanical properties can vary according to design changes, process parameters optimization and strategy selection.
Use cases at RAMLAB

Stellite 6 circular wall printed on S355 tube

Stellite 6 helix printed on AISI 316L cone. This solution allows combination of maximum functionality and material efficiency


General remarks
For the latest version of this document go to RAMLAB.com

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.