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DMLS 17-4PH Stainless Steel vs. FDM ASA

Compare DMLS 17-4PH Stainless Steel vs. FDM ASA strength, stiffness, weight and thermal properties.

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DMLS 17-4PH Stainless Steel3D printed metal (DMLS)
FDM ASA3D printed (FDM)
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Mechanical
Yield strength861MPasourcemean, as built, horizontal (N=72)not given (tensile used)
Ultimate tensile strength886MPasourcemean, as built, horizontal (N=72)37MPasourcetypical
Flexural strengthnot sourced65MPasourcetypical
Elongation at break19.9%sourcemean at break, as built, horizontal9.2%sourcetypical
Young's modulus (stiffness)197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)2.45GPasourcetypical
Density7,790kg/m³sourcemean part density (ISO 3369)1,050kg/m³sourcetypical
Strength to weight110kN·m/kg3.14x higher35.2kN·m/kg
Stiffness to weight25.3MN·m/kg10.8x higher2.33MN·m/kg
Poisson's ratio0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)not sourced
Shear modulus77.4GPanot sourced
Bulk modulus144GPanot sourced
Speed of sound5,029m/s1,528m/s
Thermal
Thermal conductivity17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)0.17W/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, typical
Thermal expansion10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)80–110µm/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, range
100 mm part over a 50 °C swing52µm growth9.13x less475µm growth
Specific heat460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)not sourced
Heats up and cools (diffusivity)5mm²/snot sourced
Thermal shock resistance5,474W/mnot sourced
Max service temperaturenot sourced92°CsourceHDT 1.8 MPa
Values forEOS StainlessSteel 17-4PH IndustryLine (powder 9011-0041), EOS M 290, 40 µm, default job 17-4PH_040_StainlessM291_100, as built, horizontal; ISO 6892 & ASTM E8MBambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing.

Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.

DMLS 17-4PH Stainless Steel and FDM ASA are 3D printed: their properties depend on build direction and print settings; these are typical values.

Questions

Is DMLS 17-4PH Stainless Steel stronger than FDM ASA?

DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against tensile strength 37 MPa for FDM ASA (23.3x).

Which is lighter, DMLS 17-4PH Stainless Steel or FDM ASA?

FDM ASA is lighter: 1,050 kg/m³ against 7,790 kg/m³ for DMLS 17-4PH Stainless Steel.

Which is stiffer, DMLS 17-4PH Stainless Steel or FDM ASA?

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 2.45 GPa for FDM ASA, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.

Which is lighter for the same job, DMLS 17-4PH Stainless Steel or FDM ASA?

For the same stiffness or strength: DMLS 17-4PH Stainless Steel is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam; FDM ASA is lighter for a stiff panel or plate, strong panel or plate.

Part that must beDMLS 17-4PH Stainless SteelFDM ASA
Stiff rod or tie (tension)lighter10.8x heavier
Stiff beam (bending)lighter21% heavier
Stiff panel or plate1.72x heavierlighter
Strong rod or tielighter3.14x heavier
Strong beamlighter10% heavier
Strong panel or plate1.54x heavierlighter

For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).

Which conducts heat better, DMLS 17-4PH Stainless Steel or FDM ASA?

DMLS 17-4PH Stainless Steel conducts heat better: 17.9 W/m·K against 0.17 W/m·K for FDM ASA.

Which expands less with temperature?

DMLS 17-4PH Stainless Steel expands less: 10.4 µm/m·K against 95 µm/m·K for FDM ASA.

Among 59 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelFDM ASA
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelBrickDMLS 17-4PH Stainless SteelFDM ASA
Strength against density

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