Inconel (IN718)

Inconel (IN718) is a nickel-chromium based steel alloy that offers excellent strength, exceptional thermal resistance up to 700°C, and high resistance to oxidation and corrosion. It is an attractive choice for functional prototypes and high-performance parts in the aerospace and automotive industries due to its ability to withstand severe mechanical stresses and strains in extreme conditions. 

Close-up view of the top of a 3D-printed volute at the base of the Firebolt DLX-150 liquid rocket engine

Technical specifications

Maximum part dimensions

250 x 250 x 305 mm

250 x 250 x 275 mm (online orders)

Standard accuracy

Better than or equal to the industry standards:

  • DCTG 6 of DIN EN ISO 8062-3 for dimensions between 0.5 and 30 mm
  • DCTG 8 of DIN EN ISO 8062-3 for dimensions between 30 and 400 mm
  • DIN ISO 2768-1 c (coarse) for dimensions between 0.5 mm and 400 mm

See design guidelines for more information on standard accuracy.

Layer thickness

Standard: 0.08 mm, Performance: 0.04 mm

Minimum wall thickness

Standard: 1 mm, Performance: 0.5 mm

Minimum detail size

0.4 mm

Interlocking or moving parts


Internal channels


Surface structure

Rough surface






Relative density



Tensile strength

DIN EN2002-1


Yield strength

DIN EN2002-1


Elastic modulus

DIN EN2002-1


Elongation at break

DIN EN2002-1


Roughness Ra

ISO 4287 / AITM 1-00070


Roughness Rz

ISO 4287 / AITM 1-00070



ISO 6597-1:03-2006


Actual values may vary with build conditions.

Strong tensions due to part geometry may distort parts, potentially leading to greater deviation in values. Values for surface roughness depend on the orientation of the surface; downward-facing surfaces and surfaces with support will be rougher.

These measurement values show the material characteristics with additional stress relief heat treatment. Extra heat treatment steps or aging for even higher mechanical properties may be possible, e.g. for serial-produced parts.


Please get in touch with our team for more information. 

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Finishing degrees

The right finish can transform your print into a product. Explore the post-production finishes we offer for this material. If you have any questions or special requests, get in touch with us.

Get in touch

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