Materials / Compare

DMLS 17-4PH Stainless Steel vs. DMLS Ti-6Al-4V ELI Titanium

Compare DMLS 17-4PH Stainless Steel vs. DMLS Ti-6Al-4V ELI Titanium strength, stiffness, weight and thermal properties.

DMLS 17-4PH Stainless Steel3D printed metal (DMLS)
DMLS Ti-6Al-4V ELI Titanium3D printed metal (DMLS)
MechanicalDMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Yield strengthmean861MPa11,100MPa228% stronger
Ultimate tensile strengthmean886MPa11,270MPa243% stronger
Elongation at breakmean at break19.9%12.29x more ductile8.7%2
Young's modulus (stiffness)base material197GPa31.79x stiffersame maker and process110GPa4
Densitymean part density7,790kg/m³14,400kg/m³21.77x lighter
Strength to weight110kN·m/kg250kN·m/kg2.26x higher
Stiffness to weight25.3MN·m/kg1% higher25MN·m/kg
Poisson's ratiobase material0.2723wrought TIMETAL 6-40.3425
Shear modulus77.4GPa1.89x stiffer in shear41GPa
Bulk modulus144GPa24% higher116GPa
Speed of sound5,029m/s5,000m/s
1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonWoodAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110Copper C10100Copper C12200GlassSteel 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 ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin StandardSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS 316L Stainless SteelConcretePCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum 3003-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30DMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Stiffness against densityHigher and further left: stiffer for its weight
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberWoodAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110Copper C10100Copper C12200GlassSteel 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 ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin StandardSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS 316L Stainless SteelBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum 3003-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30DMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Strength against densityHigher and further left: stronger for its weight
ThermalDMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Thermal conductivitybase material17.9W/m·K32.71x more heat through a finbase material6.6W/m·K6
Thermal expansionmean 25-100 °C10.4µm/m·K1mean 25-100 °C9µm/m·K716% less
100 mm part over a 50 °C swing52µm growth45µm growth16% less
Specific heatbase material460J/kg·K3base material580J/kg·K626% higher
Heats up and cools (diffusivity)5mm²/s1.93x faster2.59mm²/s
Thermal shock resistance5,474W/m13% more resistant4,825W/m
Melting pointnot sourcedmelting range1,630–1,650°C5
1k10k0.1110100Density (kg/m³)Thermal conductivity (W/m·K)Plastic PLAPlastic PETGPlastic ABSPlastic NylonRubberWoodAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110Copper C10100Copper C12200GlassSteel 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 ASAFDM PolycarbonateFDM HIPSSLA Resin StandardDMLS AlSi10Mg AluminumDMLS 316L Stainless SteelConcreteBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum 3003-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30DMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Thermal conductivity against densityHigher and further left: spreads more heat for its weight
0.111010010100Thermal conductivity (W/m·K)Thermal expansion (µm/m·K)Plastic PETGPlastic ABSPlastic NylonWoodAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110Copper C10100Copper C12200GlassSteel 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 ASAFDM PolycarbonateFDM HIPSSLA Resin StandardDMLS AlSi10Mg AluminumDMLS 316L Stainless SteelConcreteBrickPlywoodPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum 3003-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30DMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Thermal expansion against thermal conductivityLower and further right: warps less when heated
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Sources7 documents: EOS GmbH, Cleveland-Cliffs, TIMET
DMLS 17-4PH Stainless Steel
EOS 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 E8M
DMLS Ti-6Al-4V ELI Titanium
EOS Titanium Ti64ELI (powder 9011-0040; ASTM F136/F3001, i.e. Grade 23) on EOS M400 SF, parameter set Ti64ELI_030_FlexM400_100, 30 µm, as built; ISO 6892-1 A14
  1. 1
    EOS StainlessSteel 17-4PH IndustryLine Material Data Sheet, M 290EOS GmbHarchived copyDMLS 17-4PH Stainless Steel · Yield strength: mean, as built, horizontal (N=72)DMLS 17-4PH Stainless Steel · Ultimate tensile strength: mean, as built, horizontal (N=72)DMLS 17-4PH Stainless Steel · Elongation at break: mean at break, as built, horizontalDMLS 17-4PH Stainless Steel · Density: mean part density (ISO 3369)DMLS 17-4PH Stainless Steel · Thermal expansion: mean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)
  2. 2
    EOS Titanium Ti64ELI Material Data Sheet, M 290 and M 400EOS GmbHarchived copyDMLS Ti-6Al-4V ELI Titanium · Yield strength: typical, as built, average of horizontal + vertical (M400)DMLS Ti-6Al-4V ELI Titanium · Ultimate tensile strength: typical, as built, average of horizontal + vertical (M400)DMLS Ti-6Al-4V ELI Titanium · Elongation at break: typical at break, as built (M400)DMLS Ti-6Al-4V ELI Titanium · Density: typical part density (ISO 3369), M400
  3. 3
    17-4 PH Stainless Steel Product Data Bulletin (2021)Cleveland-CliffsDMLS 17-4PH Stainless Steel · Young's modulus (stiffness): base material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)DMLS 17-4PH Stainless Steel · Poisson's ratio: base material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)DMLS 17-4PH Stainless Steel · Thermal conductivity: base material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)DMLS 17-4PH Stainless Steel · Specific heat: base material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)
  4. 4
    EOS Titanium Ti64 Material Data Sheet, M 290 (2022)EOS GmbHarchived copyDMLS Ti-6Al-4V ELI Titanium · Young's modulus (stiffness): same maker and process, sibling grade: EOS Titanium Ti64 (Grade 5) on EOS M 290, as built, XY and Z, typical
  5. 5
    TIMETAL 6-4 PropertiesTIMETarchived copyDMLS Ti-6Al-4V ELI Titanium · Poisson's ratio: wrought TIMETAL 6-4 (TIMET measurement, mean of 10); composition-level, not DMLS-measuredDMLS Ti-6Al-4V ELI Titanium · Melting point: melting range, wrought TIMETAL 6-4 (composition-level)
  6. 6
    TIMETAL 6-4 Data SheetTIMETarchived copyDMLS Ti-6Al-4V ELI Titanium · Thermal conductivity: base material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °CDMLS Ti-6Al-4V ELI Titanium · Specific heat: base material: wrought Ti-6Al-4V / 6-4 ELI (TIMET datasheet), 20 °C
  7. 7
    EOS Titanium Ti64 Grade 23 Material Data SheetEOS GmbHarchived copyDMLS Ti-6Al-4V ELI Titanium · Thermal expansion: mean 25-100 °C, ASTM E228; EOS Ti64 Grade 23 (=ELI) on EOS M 290 40 µm; condition not stated (sheet's mechanical data are heat treated)

Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "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 DMLS Ti-6Al-4V ELI Titanium are 3D printed: their properties depend on build direction and print settings; these are typical values.

Questions

Mechanical

Is DMLS 17-4PH Stainless Steel stronger than DMLS Ti-6Al-4V ELI Titanium?

DMLS Ti-6Al-4V ELI Titanium is stronger: its yield strength is 1,100 MPa against 861 MPa for DMLS 17-4PH Stainless Steel (28%).

Which is lighter, DMLS 17-4PH Stainless Steel or DMLS Ti-6Al-4V ELI Titanium?

DMLS Ti-6Al-4V ELI Titanium is lighter: 4,400 kg/m³ against 7,790 kg/m³ for DMLS 17-4PH Stainless Steel.

Which is stiffer, DMLS 17-4PH Stainless Steel or DMLS Ti-6Al-4V ELI Titanium?

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 110 GPa for DMLS Ti-6Al-4V ELI Titanium, 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 DMLS Ti-6Al-4V ELI Titanium?

For the same stiffness or strength: DMLS 17-4PH Stainless Steel is lighter for a stiff rod or tie (tension); DMLS Ti-6Al-4V ELI Titanium is lighter for a stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.

Part that must beDMLS 17-4PH Stainless SteelDMLS Ti-6Al-4V ELI Titanium
Stiff rod or tie (tension)lighter1% heavier
Stiff beam (bending)32% heavierlighter
Stiff panel or plate46% heavierlighter
Strong rod or tie2.26x heavierlighter
Strong beam2.09x heavierlighter
Strong panel or plate2x 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 is more ductile, DMLS 17-4PH Stainless Steel or DMLS Ti-6Al-4V ELI Titanium?

DMLS 17-4PH Stainless Steel stretches further before it breaks: 19.9% elongation at break against 8.7% for DMLS Ti-6Al-4V ELI Titanium.

Thermal

Which conducts heat better, DMLS 17-4PH Stainless Steel or DMLS Ti-6Al-4V ELI Titanium?

DMLS 17-4PH Stainless Steel conducts heat better: 17.9 W/m·K against 6.6 W/m·K for DMLS Ti-6Al-4V ELI Titanium.

Which expands less with temperature?

DMLS Ti-6Al-4V ELI Titanium expands less: 9 µm/m·K against 10.4 µm/m·K for DMLS 17-4PH Stainless Steel.

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