EOS StainlessSteel 17-4PH DMSL on EOS M 290

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EOS StainlessSteel 17-4PH DMSL on EOS M 290
Categories:	Metal; 3D Printing/Additive Manufacturing Metal; Ferrous Metal; Stainless Steel
Material Notes:	Description: Precipitation hardening steels are widely used in engineering applications, which require corrosion resistance and strength. Parts built from EOS StainlessSteel 17-4PH can be machined, shot-peened and polished in as-built or heat treated states. Solution annealing together with ageing treatment are necessary in order to achieve proper hardness and mechanical properties (ASTM A564 – 13). Due to the layerwise building method, the parts have a certain anisotropy which can be eased by solution annealing. Information provided by EOS GmbH (Electro Optical Systems).
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Physical Properties	Original Value	Comments

Bulk Density	3.83 g/cc	Apparent; ASTM B212
	4.70 g/cc	Tap; ASTM B527
Density	7.79 g/cc	Part; ISO 3369
Porosity	0.030 %	Heat Treated
Particle Size	<= 44 µm	D50; ASTM B822
	<= 53 µm	<6 wt% above 53µm; ASTM B214
	<= 63 µm	<1 wt% above 63µm; ASTM B214
Pore Size	7.20 microns	Heat Treated

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	20.3 - 27.5	As built; ISO 6508
	>= 40	ASTM A564 (H900); ISO 6508
	41.6 - 42.6	Vacuum H900; ISO 6508
	41.6 - 42.6	Argon Atmosphere HT; ISO 6508
	42.5 - 43.1	Vacuum HT 460°C
Tensile Strength, Ultimate	815.6 - 956.4 MPa	horizontal direction (XY), As built; ISO 6892
	876.3 - 990.1 MPa	vertical direction (Z), As built; ISO 6892
	>= 1310 MPa	vertical direction (Z), ASTM A564 (H900); ISO 6892
	>= 1310 MPa	horizontal direction (XY), ASTM A564 (H900); ISO 6892
	1330.6 - 1341 MPa	horizontal direction (XY), Vacuum H900; ISO 6892
	1334.1 - 1345.9 MPa	horizontal direction (XY), Argon Atmosphere HT; ISO 6892
	1334.9 - 1350.3 MPa	vertical direction (Z), Vacuum H900; ISO 6892
	1342.7 - 1348.3 MPa	vertical direction (Z), Argon Atmosphere HT; ISO 6892
	1351.4 - 1364.8 MPa	Both directions, Vacuum HT 460°C
Tensile Strength, Yield	784.9 - 936.3 MPa	horizontal direction (XY), As built; ISO 6892
	816.6 - 906 MPa	vertical direction (Z), As built; ISO 6892
	>= 1170 MPa	vertical direction (Z), ASTM A564 (H900); ISO 6892
	1225.4 - 1245 MPa	horizontal direction (XY), Vacuum H900; ISO 6892
	1226.8 - 1244.2 MPa	horizontal direction (XY), Argon Atmosphere HT; ISO 6892
	1232.5 - 1252.7 MPa	vertical direction (Z), Argon Atmosphere HT; ISO 6892
	1237.2 - 1264.2 MPa	vertical direction (Z), Vacuum H900; ISO 6892
	1249.5 - 1275.3 MPa	Both directions, Vacuum HT 460°C
Elongation at Break	>= 10 %	vertical direction (Z), ASTM A564 (H900); ISO 6892
	>= 10 %	horizontal direction (XY), ASTM A564 (H900); ISO 6892
	11.7 - 13.5 %	vertical direction (Z), Argon Atmosphere HT; ISO 6892
	12.8 - 14.2 %	vertical direction (Z), Vacuum H900; ISO 6892
	12.6 - 14.4 %	horizontal direction (XY), Argon Atmosphere HT; ISO 6892
	13.2 - 14.8 %	horizontal direction (XY), Vacuum H900; ISO 6892
	13.2 - 19.8 %	horizontal direction (XY), Vacuum HT 460°C
	18.7 - 21.1 %	horizontal direction (XY), As built; ISO 6892
	18.6 - 21.6 %	vertical direction (Z), As built; ISO 6892

Thermal Properties	Original Value	Comments
CTE, linear	10.4 µm/m-°C @Temperature 25.0 - 100 °C	ASTM E228
	11.0 µm/m-°C @Temperature 25.0 - 200 °C	ASTM E228
	11.4 µm/m-°C @Temperature 25.0 - 300 °C	ASTM E228
	11.8 µm/m-°C @Temperature 25.0 - 400 °C	ASTM E228
	12.0 µm/m-°C @Temperature 25.0 - 500 °C	ASTM E228

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.070 %
Chromium, Cr	15 - 17.5 %
Copper, Cu	3.0 - 5.0 %
Manganese, Mn	<= 1.0 %
Nb + Ta	0.15 - 0.45 %
Nickel, Ni	3.0 - 5.0 %
Phosphorus, P	<= 0.040 %
Silicon, Si	<= 1.0 %
Sulfur, S	<= 0.030 %

Descriptive Properties
Surface roughness	17.3 – 27.7 µm	Rz, Horizontal, after shot-peening
	3.5 – 5.9 µm	Ra, Horizontal, after shot-peening
	Ra 3.4 – 5.5 µm	Ra, Vertical, after shot-peening
	Rz 15.9 – 28.5 µm	Rz, Vertical, after shot-peening
Volume rate	3.32 mm³/s

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NEOS946 / 280606

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