Materials / Compare

DMLS 316L Stainless Steel vs. Stainless Steel 17-4PH

Compare DMLS 316L Stainless Steel vs. Stainless Steel 17-4PH strength, stiffness, weight and thermal properties.

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DMLS 316L Stainless Steel3D printed metal (DMLS)
Stainless Steel 17-4PHWrought
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Mechanical
Yield strength530MPasourcetypical, as manufactured, horizontal1,275MPasourcetypical, transverse, sheet/strip
Ultimate tensile strength640MPasourcetypical, as manufactured, horizontal1,379MPasourcetypical, transverse, sheet/strip
Elongation at break40%sourcetypical at break, as manufactured, horizontal9%sourcetypical, transverse, in 2 in. (50.8 mm)
Young's modulus (stiffness)185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet)197GPasourceH 900
Density7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine7,800kg/m³sourceH 900
Strength to weight67.1kN·m/kg163kN·m/kg2.44x higher
Stiffness to weight23.4MN·m/kg25.3MN·m/kg8% higher
Poisson's ratio0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design value0.272sourceH 900 (column)
Shear modulus71.2GPa77.4GPa9% stiffer in shear
Bulk modulus154GPa144GPa
Speed of sound4,839m/s5,026m/s
Thermal
Thermal conductivity16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °C17.9W/m·Ksourceat 149 °C (300 °F), H 900
Thermal expansion15.7µm/m·Ksourcemean 25-100 °C, ASTM E22810.8µm/m·Ksourcemean, 21–93 °C (70–200 °F), H 900
100 mm part over a 50 °C swing78.6µm growth54µm growth46% less
Specific heat500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °C460J/kg·Ksourcemean, 0–100 °C, H 900
Heats up and cools (diffusivity)4.1mm²/s4.99mm²/s22% faster
Thermal shock resistance2,067W/m7,809W/m3.78x more resistant
Max service temperaturenot sourced316°Csourcestrength-retention limit (not oxidation)
Values forEOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1Cleveland-Cliffs 17-4 PH, Condition H 900, sheet/strip, transverse (Product Data Bulletin, May 2021)

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 316L Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is DMLS 316L Stainless Steel stronger than Stainless Steel 17-4PH?

Stainless Steel 17-4PH is stronger: its yield strength is 1,275 MPa against 530 MPa for DMLS 316L Stainless Steel (2.41x).

Which is lighter, DMLS 316L Stainless Steel or Stainless Steel 17-4PH?

Stainless Steel 17-4PH is lighter: 7,800 kg/m³ against 7,900 kg/m³ for DMLS 316L Stainless Steel.

Which is stiffer, DMLS 316L Stainless Steel or Stainless Steel 17-4PH?

Stainless Steel 17-4PH is stiffer: Young's modulus 197 GPa against 185 GPa for DMLS 316L Stainless Steel, so the same part in Stainless Steel 17-4PH deflects less under the same load.

Which is lighter for the same job, DMLS 316L Stainless Steel or Stainless Steel 17-4PH?

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

Part that must beDMLS 316L Stainless SteelStainless Steel 17-4PH
Stiff rod or tie (tension)8% heavierlighter
Stiff beam (bending)5% heavierlighter
Stiff panel or plate3% heavierlighter
Strong rod or tie2.44x heavierlighter
Strong beam1.82x heavierlighter
Strong panel or plate1.57x 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 316L Stainless Steel or Stainless Steel 17-4PH?

Stainless Steel 17-4PH conducts heat better: 17.9 W/m·K against 16.2 W/m·K for DMLS 316L Stainless Steel.

Which expands less with temperature?

Stainless Steel 17-4PH expands less: 10.8 µm/m·K against 15.7 µm/m·K for DMLS 316L Stainless Steel.

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 303Aluminum 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 ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 17-4PH Stainless SteelDMLS 316L Stainless SteelStainless Steel 17-4PH
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 303Aluminum 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 ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 17-4PH Stainless SteelBrickDMLS 316L Stainless SteelStainless Steel 17-4PH
Strength against density

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