Materials / Compare

Plastic Nylon PA6 vs. SLA Resin Elastic 50A

Compare Plastic Nylon PA6 vs. SLA Resin Elastic 50A strength, stiffness, weight and thermal properties.

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Plastic Nylon PA6Bulk polymer (molded or machined)
SLA Resin Elastic 50A3D printed (SLA resin)
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Mechanical
Yield strength90MPasourcetypical, drynot given (tensile used)
Ultimate tensile strengthnot sourced3.4MPasourcetypical
Elongation at break10%sourcenominal strain at break, dry160%sourcetypical
Young's modulus (stiffness)3.5GPasourcetypical, drynot sourced
Density1,130kg/m³sourcetypical1,010kg/m³sourcetypical12% lighter
Strength to weight79.6kN·m/kg23.7x higher3.37kN·m/kg
Stiffness to weight3.1MN·m/kgnot sourced
Poisson's ratio0.4sourcebase material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1)not sourced
Shear modulus1.25GPanot sourced
Bulk modulus5.83GPanot sourced
Speed of sound1,760m/snot sourced
Thermal
Thermal conductivity0.33W/m·Ksourcetypicalnot sourced
Thermal expansion102µm/m·Ksourcelongitudinal, 23-55 °Cnot sourced
100 mm part over a 50 °C swing510µm growthnot sourced
Specific heat1,700J/kg·Ksourcetypicalnot sourced
Heats up and cools (diffusivity)0.172mm²/snot sourced
Thermal shock resistance49.9W/mnot sourced
Melting point220°CsourceDSCnot sourced
Glass transitionnot sourced-34.5°CsourceDMA
Max service temperature87°CsourceIEC 60216 temperature index, 20000 hnot sourced
Values forBASF Ultramid B3S (PA6, unreinforced injection-moulding grade), Product Information 02/2026, dry values (ISO methods)Formlabs Elastic 50A Resin V2 (FLELCL02), TDS Rev. 01 24.01.2024; parts printed on Form 3, 100 µm, Elastic 50A V2 settings and post-processing; tensile on Die C specimens cut from printed sheets after 3+ h at 23 °C.

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 Elastic 50A is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is Plastic Nylon PA6 stronger than SLA Resin Elastic 50A?

Plastic Nylon PA6 is stronger: its yield strength is 90 MPa against tensile strength 3.4 MPa for SLA Resin Elastic 50A (26.5x).

Which is lighter, Plastic Nylon PA6 or SLA Resin Elastic 50A?

SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 1,130 kg/m³ for Plastic Nylon PA6.

Which is lighter for the same job, Plastic Nylon PA6 or SLA Resin Elastic 50A?

For the same stiffness or strength: Plastic Nylon PA6 is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must bePlastic Nylon PA6SLA Resin Elastic 50A
Strong rod or tielighter23.7x heavier
Strong beamlighter7.94x heavier
Strong panel or platelighter4.6x 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).

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 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 SteelPlastic Nylon PA6
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 PA66Plastic PEEKPlastic PTFEPlastic 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 SteelBrickPlastic Nylon PA6SLA Resin Elastic 50A
Strength against density

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