Material

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.

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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	No
Internal channels	Yes
Surface structure	Rough surface

Datasheet

PARAMETER	STANDARD GRADE	PERFORMANCE GRADE	STANDARD	UNIT	METHOD
Density WGE-Prod-067EN	>8.07	g/cm³	WGE-Prod-067EN
Relative density WGE-Prod-067EN	>99	%	WGE-Prod-067EN
Tensile strength DIN EN2002-1	>940	MPa	DIN EN2002-1
Yield strength DIN EN2002-1	>750	MPa	DIN EN2002-1
Elastic modulus DIN EN2002-1	200	GPa	DIN EN2002-1
Elongation at break DIN EN2002-1	>8	%	DIN EN2002-1
Roughness R_a ISO 4287 / AITM 1-00070	<15	µm	ISO 4287 / AITM 1-00070
Roughness R_z ISO 4287 / AITM 1-00070	<60	µm	ISO 4287 / AITM 1-00070
Hardness ISO 6597-1:03-2006	>300	HV	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.

Supports removed

Corundum blasted (matte)