EOS MaragingSteel MS1

Parts built in EOS MaragingSteel MS1 have a chemical composition corresponding to US classification 18Ni300. This kind of steel is characterized by having very good mechanical properties, and being easily heat treatable to obtain ultra high hardness and strength.
Parts built from EOS MaragingSteel MS1 are easily machinable after the building process and can be heat treated to 54 HRC by solution anneal and age-hardening at 490 °C (914 °F) for 6 hours. In both as-built and heat treated states the parts can be machined, spark-eroded, welded, shot-peened, polished and coated if required.

The chemical composition in compliance with 18Ni300
Ultimate Tensile Strength 2080 MPa
Yield Strength 2000 MPa
Elongation @ Break 4 %

→ Injection molding tools & inserts

→ Mechanical engineering parts

Product Summary

Suitable for
EOS M 290 @ 20, 50 & 40 µm,
EOS M 400 @ 50 µm, EOS M 300-4 @ 50 µm, EOS M 400-4 @ 40 µm

Through hardening upto 54 HRC

High strength and hardness

Item No 9011-0016
Contact sales team