Materials / Compare

DMLS 316L Stainless Steel vs. SLA Resin Tough 2000

Compare DMLS 316L Stainless Steel vs. SLA Resin Tough 2000 strength, stiffness, weight and thermal properties.

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DMLS 316L Stainless Steel3D printed metal (DMLS)
SLA Resin Tough 20003D printed (SLA resin)
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Mechanical
Yield strength530MPasourcetypical, as manufactured, horizontal40.4MPasourcetypical
Ultimate tensile strength640MPasourcetypical, as manufactured, horizontal40.4MPasourcetypical
Flexural strengthnot sourced67MPasourcetypical
Elongation at break40%sourcetypical at break, as manufactured, horizontal79%sourcetypical
Young's modulus (stiffness)185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet)1.8GPasourcetypical
Density7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine1,090kg/m³sourcetypical
Strength to weight67.1kN·m/kg1.81x higher37.1kN·m/kg
Stiffness to weight23.4MN·m/kg14.2x higher1.65MN·m/kg
Poisson's ratio0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design valuenot sourced
Shear modulus71.2GPanot sourced
Bulk modulus154GPanot sourced
Speed of sound4,839m/s1,285m/s
Thermal
Thermal conductivity16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °Cnot sourced
Thermal expansion15.7µm/m·Ksourcemean 25-100 °C, ASTM E228134µm/m·Ksourcemean 0-150 °C
100 mm part over a 50 °C swing78.6µm growth8.54x less671µm growth
Specific heat500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °Cnot sourced
Heats up and cools (diffusivity)4.1mm²/snot sourced
Thermal shock resistance2,067W/mnot sourced
Glass transitionnot sourced112°CsourceDMA
Max service temperaturenot sourced57°CsourceHDT 1.8 MPa
Values forEOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1Formlabs Tough 2000 Resin V2 (FLTO2002), TDS Rev. 01 10/06/2025; printed on Form 4 at 100 µm, washed in Form Wash V2 10+5 min in >=99% IPA, post-cured 70 °C for 12 min in Form Cure V2. Orientation not stated.

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 and SLA Resin Tough 2000 are 3D printed: their properties depend on build direction and print settings; these are typical values.

Questions

Is DMLS 316L Stainless Steel stronger than SLA Resin Tough 2000?

DMLS 316L Stainless Steel is stronger: its yield strength is 530 MPa against 40.4 MPa for SLA Resin Tough 2000 (13.1x).

Which is lighter, DMLS 316L Stainless Steel or SLA Resin Tough 2000?

SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 7,900 kg/m³ for DMLS 316L Stainless Steel.

Which is stiffer, DMLS 316L Stainless Steel or SLA Resin Tough 2000?

DMLS 316L Stainless Steel is stiffer: Young's modulus 185 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in DMLS 316L Stainless Steel deflects less under the same load.

Which is lighter for the same job, DMLS 316L Stainless Steel or SLA Resin Tough 2000?

For the same stiffness or strength: DMLS 316L Stainless Steel is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie; SLA Resin Tough 2000 is lighter for a stiff panel or plate, strong beam, strong panel or plate.

Part that must beDMLS 316L Stainless SteelSLA Resin Tough 2000
Stiff rod or tie (tension)lighter14.2x heavier
Stiff beam (bending)lighter40% heavier
Stiff panel or plate1.55x heavierlighter
Strong rod or tielighter1.81x heavier
Strong beam30% 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 expands less with temperature?

DMLS 316L Stainless Steel expands less: 15.7 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.

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

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