EOS NickelAlloy K500

Material Data Sheet

Versatile alloy for highly corrosive environments

EOS NickelAlloy K500 is a versatile alloy designed for especially highly corrosive environments. The material offers a unique combination of mechanical properties, corrosion resistance, and thermal conductivity that make it ideal for a variety of demanding applications.

MAIN CHARACTERISTICS

Good mechanical strength also in elevated temperatures
Excellent corrosion resistance
Moderate conductivity (approximately two times the conductivity of commonly used nickel superalloys)

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TYPICAL APPLICATIONS

Aerospace
Marine
Industrial applications

The EOS Quality Triangle

EOS uses an approach that is unique in the AM industry, taking each of the three central technical elements of the production process into account: the system, the material and the process. The data resulting from each combination is assigned a Technology Readiness Level (TRL) which makes the expected performance and production capability of the solution transparent.

EOS incorporates these TRLs into the following two categories:

Premium products (TRL 7-9): offer highly validated data, proven capability and reproducible part properties.
Core products (TRL 3 and 5): enable early customer access to newest technology still under development and are therefore less mature with less data.

All of the data stated in this material data sheet is produced according to EOS Quality Management System and international standards

POWDER PROPERTIES

Powder and built part compositions of the EOS NickelAlloy K500 conform to the chemical composition requirements of UNS N05500.

Powder Chemical Composition (wt.-%)

Element	Min.	Max.
Ni	63	-
Cu	27	33
Al	2.3	3.15
Fe	-	2
Mn	-	1.5
Ti	0.35	0.85
Si	-	0.5
C	-	0.25
S	-	0.01

Powder Particle Size

GENERIC PARTICLE SIZE DISTRIBUTION	15 - 75 μm

SEM micrograph of EOS NickelAlloy K500 powder

HEAT TREATMENT

Description

EOS NickelAlloy K500 is a precipitation strengthened alloy. The strength of the material can be tailored using heat treatment. An ageing heat treatment directly after printing is recommended for applications where strength is the primary concern.

Steps

Direct aging

Hold at 595 °C measured from the part for 2 h in argon atmosphere, followed by slow air cooling.

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