High-manganese Steel Powder

High-manganese steels (HMnS) are alloys with outstanding mechanical properties, but their application is inhibited by inherent limitations in conventional processing. Additive manufacturing (AM) provides an alternative to make use of the unique properties of HMnS due to strongly differing processing conditions.

Most commonly, metal AM is realized by either powder bed fusion (PBF), e.g. selective laser melting (SLM) or electron beam melting (EBM), or direct energy deposition (DED), e.g. laser metal deposition (LMD).

The concept of High-manganese steels is based on stabilizing the austenitic phase by high Mn contents, typically between 15 and 35 wt%. With a low stacking-fault energy (SFE) in the range of 10 to 50 mJ m−2, multiple deformation mechanisms can be activated in addition to dislocation glide.

Although HMnS offer remarkable mechanical properties, industrial application is still limited due to complex  post-processing, limited machinability as well as restricted high-temperature formability in conventional processing. But these drawbacks can be overcome in AM due to differing processing conditions and direct part production.

Therefore, the combination of advantageous processing conditions and geometrical freedom in AM with the unique mechanical properties in HMnS is suitable to perform AM-specific material design.

TRUER high Mn steel powders include grades Fe13Mn, Fe18Mn, Fe24Mn, Fe30Mn, Fe35Mn.

Chemical composition (wt%) of Fe35Mn:

Morphology:

Powder Property of PSD 15-53um:

Packing:

5kg, 10kg, 25kg or as required; plastic bottle/can.