EOS ToolSteel 1.2709 DMSL on EOS M 290

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EOS ToolSteel 1.2709 DMSL on EOS M 290
Categories:	Metal; 3D Printing/Additive Manufacturing Metal; Ferrous Metal; Maraging Steel
Material Notes:	EOS ToolSteel 1.2709 is an ultra high strength tooling grade maraging steel. Its excellent properties are enabled by forming intermetallic phases and precipitates in heat treatment. The properties enable successful use in diverse applications including injection molding and cold and hot working. Main Characteristics: 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 Information provided by EOS GmbH (Electro Optical Systems).
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Physical Properties	Metric	English	Comments

Density	>= 8.05 g/cc	>= 0.291 lb/in³	ISO 3369
Particle Size	20 - 65 µm	20 - 65 µm
Thickness	40.0 microns	1.57 mil	Layer Thickness

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	57	57	ISO 6508
Tensile Strength	2250 MPa	326000 psi	Horizontal, Heat Treated State; ISO 6892-1
	2260 MPa	328000 psi	Vertical, Heat Treated State; ISO 6892-1
Tensile Strength, Yield	2170 MPa	315000 psi	Horizontal, Heat Treated State; ISO 6892-1
	2180 MPa	316000 psi	Vertical, Heat Treated State; ISO 6892-1
Elongation at Break	3.3 %	3.3 %	Vertical, Heat Treated State; ISO 6892-1
	4.2 %	4.2 %	Horizontal, Heat Treated State; ISO 6892-1
Fatigue Strength	732 MPa @# of Cycles 1.00e+7	106000 psi @# of Cycles 1.00e+7	ASTM E466
Charpy Impact	10.0 J	7.38 ft-lb	V-notch; ISO 148-1

Thermal Properties	Metric	English	Comments
CTE, linear	10.72 µm/m-°C @Temperature 25.0 - 100 °C	5.956 µin/in-°F @Temperature 77.0 - 212 °F	ASTM E228
	11.15 µm/m-°C @Temperature 25.0 - 200 °C	6.194 µin/in-°F @Temperature 77.0 - 392 °F	ASTM E228
	11.5 µm/m-°C @Temperature 25.0 - 300 °C	6.39 µin/in-°F @Temperature 77.0 - 572 °F	ASTM E228
	11.51 µm/m-°C @Temperature 25.0 - 400 °C	6.394 µin/in-°F @Temperature 77.0 - 752 °F	ASTM E228

Component Elements Properties	Metric	English	Comments
Cobalt, Co	8.5 - 10 %	8.5 - 10 %
Iron, Fe	64.6 - 69.2 %	64.6 - 69.2 %	Balance
Molybdenum, Mo	4.5 - 5.2 %	4.5 - 5.2 %
Nickel, Ni	17 - 19 %	17 - 19 %
Titanium, Ti	0.80 - 1.2 %	0.80 - 1.2 %

Descriptive Properties
Volume rate	4.1 mm3/s

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

NEOS971 / 280631

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