Steel powder for use in additive manufacturing processes
OwnerGunnar Broberg, Ulrika Fager +3inventors
InventorsGunnar Broberg, Ulrika Fager, Fredrik Mikaelsson, Teodor Haglund, Arvid Svanberg
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Abstract
Described is a steel powder for use in additive manufacturing processes. The steel powder has a composition that includes (in wt.-%): C 0.25-0.40, Si 0.80-1.35, Mn 0.5-1.0, Cr 1.1-1.6, Ni 0.4-1.3, Mo 0.6-1.0, V 0.05-0.25, N equal to or less than 0.025, optionally Nb equal to or less than 0.03, optionally Ti equal to or less than 0.02, optionally B equal to or less than 0.005, balance Fe and unavoidable impurities.
Claims21
A steel powder for use in additive manufacturing processes, the steel powder comprising the following composition in percent by weight (wt.-%):
- C
- 0.25-0.40,
- Si
- 0.80-1.35,
- Mn
- 0.5-1.0,
- Cr
- 1.1-1.6,
- Ni
- 0.4-1.3,
- Mo
- 0.6-1.0,
- V
- 0.05-0.25,
- N
- equal to or less than 0.025
- optionally Nb equal to or less than 0.03,
- optionally Ti equal to or less than 0.02,
- optionally B equal to or less than 0.005,
- balance Fe and unavoidable impurities;
- wherein the unavoidable impurities P, S, Cu and Al are limited to:
- P
- equal to or less than 0.03,
- S
- equal to or less than 0.01,
- Cu
- equal to or less than 0.2, and
- Al
- equal to or less than 0.07.
(canceled)
Dependencies are inferred from the claim text.