RS-390 is an Al-Si-Ni alloy with good processability via powder bed fusion (PBF) and increased working temperature. Alloy can be used both after annealing or standard T6 temper. T6 temper ensures the better strength performance. The alloy can be used as structural material for various applications (automotive, aerospace, etc) under the heating up to 250°С.


Elastic modulus E, GPa  XY

76 ± 2

Elastic modulus E, GPa  Z

76 ± 2

UTS (s В), MPa  XY

360 ± 10

UTS (s В), MPa  Z

365 ± 10

TYS (s 0,2), MPa  XYZ

200 ± 10

Elongation (5), %

4,0 ± 1,0

250°С UTS (s В 250), MPa

160 ± 10

250°С Elongation (5) , % XY

27 ± 5,0

250°С Elongation (5) , % Z

25 ± 5,0

(*) This data sheet contains approximate values which can’t be used for the design or quality control purposes. Results are obtained after printing with EOS M290 printer and CNC machining and can vary depending on part design or geometry and used 3D printing system. Each user is responsible for determining that the material is safe, lawful and technical suitable for the intended use, laws and regulations. Exports to some countries may require a export permission.

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