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

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

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DMLS 17-4PH Stainless Steel3D printed metal (DMLS)
Stainless Steel 17-4PHWrought
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Mechanical
Yield strength861MPasourcemean, as built, horizontal (N=72)1,275MPasourcetypical, transverse, sheet/strip
Ultimate tensile strength886MPasourcemean, as built, horizontal (N=72)1,379MPasourcetypical, transverse, sheet/strip
Elongation at break19.9%sourcemean at break, as built, horizontal9%sourcetypical, transverse, in 2 in. (50.8 mm)
Young's modulus (stiffness)197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)197GPasourceH 900
Density7,790kg/m³sourcemean part density (ISO 3369)7,800kg/m³sourceH 900
Strength to weight110kN·m/kg163kN·m/kg48% higher
Stiffness to weight25.3MN·m/kg25.3MN·m/kg
Poisson's ratio0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)0.272sourceH 900 (column)
Shear modulus77.4GPa77.4GPa
Bulk modulus144GPa144GPa
Speed of sound5,029m/s5,026m/s
Thermal
Thermal conductivity17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)17.9W/m·Ksourceat 149 °C (300 °F), H 900
Thermal expansion10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)10.8µm/m·Ksourcemean, 21–93 °C (70–200 °F), H 900
100 mm part over a 50 °C swing52µm growth4% less54µm growth
Specific heat460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)460J/kg·Ksourcemean, 0–100 °C, H 900
Heats up and cools (diffusivity)5mm²/s4.99mm²/s
Thermal shock resistance5,474W/m7,809W/m43% more resistant
Max service temperaturenot sourced316°Csourcestrength-retention limit (not oxidation)
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 E8MCleveland-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 17-4PH Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

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

Stainless Steel 17-4PH is stronger: its yield strength is 1,275 MPa against 861 MPa for DMLS 17-4PH Stainless Steel (48%).

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

DMLS 17-4PH Stainless Steel is lighter: 7,790 kg/m³ against 7,800 kg/m³ for Stainless Steel 17-4PH.

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

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 197 GPa for Stainless Steel 17-4PH, 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 Stainless Steel 17-4PH?

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

Part that must beDMLS 17-4PH Stainless SteelStainless Steel 17-4PH
Stiff rod or tie (tension)about equalabout equal
Stiff beam (bending)about equalabout equal
Stiff panel or plateabout equalabout equal
Strong rod or tie48% heavierlighter
Strong beam30% heavierlighter
Strong panel or plate22% 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 Stainless Steel 17-4PH?

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

Which expands less with temperature?

DMLS 17-4PH Stainless Steel expands less: 10.4 µm/m·K against 10.8 µm/m·K for Stainless Steel 17-4PH.

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 316L Stainless SteelDMLS 17-4PH 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 316L Stainless SteelBrickDMLS 17-4PH Stainless SteelStainless Steel 17-4PH
Strength against density

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