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SLA Resin Tough 2000 vs. DMLS 17-4PH Stainless Steel

Compare SLA Resin Tough 2000 vs. DMLS 17-4PH Stainless Steel strength, stiffness, weight and thermal properties.

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SLA Resin Tough 20003D printed (SLA resin)
DMLS 17-4PH Stainless Steel3D printed metal (DMLS)
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Mechanical
Yield strength40.4MPasourcetypical861MPasourcemean, as built, horizontal (N=72)
Ultimate tensile strength40.4MPasourcetypical886MPasourcemean, as built, horizontal (N=72)
Flexural strength67MPasourcetypicalnot sourced
Elongation at break79%sourcetypical19.9%sourcemean at break, as built, horizontal
Young's modulus (stiffness)1.8GPasourcetypical197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)
Density1,090kg/m³sourcetypical7,790kg/m³sourcemean part density (ISO 3369)
Strength to weight37.1kN·m/kg110kN·m/kg2.98x higher
Stiffness to weight1.65MN·m/kg25.3MN·m/kg15.3x higher
Poisson's rationot sourced0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)
Shear modulusnot sourced77.4GPa
Bulk modulusnot sourced144GPa
Speed of sound1,285m/s5,029m/s
Thermal
Thermal conductivitynot sourced17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)
Thermal expansion134µm/m·Ksourcemean 0-150 °C10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)
100 mm part over a 50 °C swing671µm growth52µm growth12.9x less
Specific heatnot sourced460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)
Heats up and cools (diffusivity)not sourced5mm²/s
Thermal shock resistancenot sourced5,474W/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 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

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 17-4PH 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 17-4PH Stainless Steel?

DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against 40.4 MPa for SLA Resin Tough 2000 (21.3x).

Which is lighter, SLA Resin Tough 2000 or DMLS 17-4PH Stainless Steel?

SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 7,790 kg/m³ for DMLS 17-4PH Stainless Steel.

Which is stiffer, SLA Resin Tough 2000 or DMLS 17-4PH Stainless Steel?

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.

Which is lighter for the same job, SLA Resin Tough 2000 or DMLS 17-4PH Stainless Steel?

For the same stiffness or strength: SLA Resin Tough 2000 is lighter for a stiff panel or plate, strong panel or plate; DMLS 17-4PH Stainless Steel is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam.

Part that must beSLA Resin Tough 2000DMLS 17-4PH Stainless Steel
Stiff rod or tie (tension)15.3x heavierlighter
Stiff beam (bending)46% heavierlighter
Stiff panel or platelighter49% heavier
Strong rod or tie2.98x heavierlighter
Strong beam8% heavierlighter
Strong panel or platelighter1.55x 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 17-4PH Stainless Steel expands less: 10.4 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 316L Stainless SteelSLA Resin Tough 2000DMLS 17-4PH 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 316L Stainless SteelBrickSLA Resin Tough 2000DMLS 17-4PH Stainless Steel
Strength against density

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