Tool Steel
3D Printing Tool Steel MS1, 1.2709, CX & CM55
Tool Steel Alloys for Industrial 3D Printing
Tool steel’s material characteristics make it ideal for a wide range of tooling applications across all industries.
The tool steel family of powders encompasses the MS1, 1.2709, CX and CM55 alloys. All powders are designed and tested for use on EOS metal systems.
EOS tool steel powders are shipped with an inspection certificate (according to EN 10204, Type 3.1) showing the results of the extensive QA testing. Only EOS ToolSteel CM55 is shipped with a material test report (according to EN 10204, Type 2.2) showing the results of the QA testing with regard to the chemical properties and particle size distribution.
EOS also offers a wide range of validated processes for each of the above materials. These offer the optimal combination of parameters (e.g. laser power, layer thickness, etc.) in order to ensure that the properties of the 3D printed part are consistently achieved.
Typical Part Properties
- Chemical Composition Standard 18Ni300, M300
- Tensile Strength 2080 MPa
- Yield Strength 2000 MPa
- Elongation at Break 4 %
EOS MaragingSteel MS1
Parts show very good mechanical properties being easily heat treatable using a simple thermal age-hardening process to obtain excellent hardness and strength.
Highlights
- The parts are easily post-hardened to more than 50 HRC
- The parts can be machined, spark-eroded, welded, micro shot-peened, polished and coated
- Chemical composition corresponding to 18Ni300 and M300
Typical Applications
- Injection molding tools & inserts
- Mechanical engineering parts
Compatible Printers
Typical Part Properties
- Chemical Composition Standard 1.2709
- Tensile Strength 2250 MPa
- Yield Strength 2160 MPa
- Elongation at Break 3.5 %
EOS ToolSteel 1.2709
Parts show excellent mechanical properties and fatigue strength being heat treatable to various needs to obtain application appropriate hardness and strength.
Highlights
- Ultra high strength and hardness
- Properties adjustable with different heat treatment
- Excellent fatigue strength
- Good machinability
Typical Applications
- Plastic injection molding
- Extrusion tools
- Hot pressing tools
- Die casting tools for aluminum and zinc alloys
Compatible Printers
Typical Part Properties
- Tensile Strength 2030 MPa
- Yield Strength 1730 MPa
- Elongation at Break 4 %
EOS ToolSteel CM55
This material is a cobalt free ultra-high strength steel for cold and hot-working tools as well as engineering solutions. It’s alloying elements and moderate carbon content form a strong and stable structure for demanding applications.
Highlights
- Cobalt free
- High strength and hardness
- Stable for use in elevated temperatures
Typical Applications
- Cold working tools
- Hot working tools
- Parts for mechanical engineering
- Powertrain components
