Materials / Compare

SLA Resin Tough 2000 vs. DMLS 316L Stainless Steel

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

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SLA Resin Tough 20003D printed (SLA resin)
DMLS 316L Stainless Steel3D printed metal (DMLS)
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Mechanical
Yield strength40.4MPasourcetypical530MPasourcetypical, as manufactured, horizontal
Ultimate tensile strength40.4MPasourcetypical640MPasourcetypical, as manufactured, horizontal
Flexural strength67MPasourcetypicalnot sourced
Elongation at break79%sourcetypical40%sourcetypical at break, as manufactured, horizontal
Young's modulus (stiffness)1.8GPasourcetypical185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet)
Density1,090kg/m³sourcetypical7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine
Strength to weight37.1kN·m/kg67.1kN·m/kg1.81x higher
Stiffness to weight1.65MN·m/kg23.4MN·m/kg14.2x higher
Poisson's rationot sourced0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design value
Shear modulusnot sourced71.2GPa
Bulk modulusnot sourced154GPa
Speed of sound1,285m/s4,839m/s
Thermal
Thermal conductivitynot sourced16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °C
Thermal expansion134µm/m·Ksourcemean 0-150 °C15.7µm/m·Ksourcemean 25-100 °C, ASTM E228
100 mm part over a 50 °C swing671µm growth78.6µm growth8.54x less
Specific heatnot sourced500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °C
Heats up and cools (diffusivity)not sourced4.1mm²/s
Thermal shock resistancenot sourced2,067W/m
Glass transition112°CsourceDMAnot sourced
Max service temperature57°CsourceHDT 1.8 MPanot sourced
Values forFormlabs 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.EOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1

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.

SLA Resin Tough 2000 and DMLS 316L Stainless Steel are 3D printed: their properties depend on build direction and print settings; these are typical values.

Questions

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

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

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

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

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

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

Part that must beSLA Resin Tough 2000DMLS 316L Stainless Steel
Stiff rod or tie (tension)14.2x heavierlighter
Stiff beam (bending)40% heavierlighter
Stiff panel or platelighter1.55x heavier
Strong rod or tie1.81x heavierlighter
Strong beamlighter30% heavier
Strong panel or platelighter2x heavier

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 304Stainless 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless 303Stainless 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 SteelSLA Resin Tough 2000DMLS 316L Stainless Steel
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless 304Stainless 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless 303Stainless 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 SteelBrickSLA Resin Tough 2000DMLS 316L Stainless Steel
Strength against density

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