Summary
- MX3D validated super duplex stainless steel ER2594 for WAAM; wire came via NovaMetal.
- Qualification program ran with Belgian Welding Institute (BWI), using multiple tests and RT.
- Results reported on both 5 mm and 50 mm printed sections, aiming at harsh-service industries.
MX3D says it has validated super duplex stainless steel (ER2594) for Wire Arc Additive Manufacturing (WAAM), targeting demanding environments like offshore, maritime, energy, and chemical processing. The welding wire used in the testing came from NovaMetal, noted as MX3D’s partner in the work.
To support “production readiness,” MX3D reports an extensive qualification program carried out together with the Belgian Welding Institute (BWI). The program included bend, tensile and impact testing, plus radiographic (X-ray) inspection on WAAM-printed sections at two thicknesses: 5 mm and 50 mm.
MX3D
On results, the article states 180° bend tests showed no cracks or surface issues, while tensile testing (ISO 6892-1) gave yield strengths around 550–580 MPa and tensile strengths around 760–850 MPa, with elongation around 30–35% depending on thickness. For 50 mm samples, Charpy impact at –40°C is reported well above a 27 J minimum, and radiography is described as finding no critical defects.
Source:
Arthur
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