Materials / Compare

Plastic Nylon vs. Plastic Nylon PA6

Compare Plastic Nylon vs. Plastic Nylon PA6 strength, stiffness, weight and thermal properties.

Plastic Nylon3D printed (FDM)
Plastic Nylon PA6Bulk polymer (molded or machined)
MechanicalPlastic NylonPlastic Nylon PA6
Yield strength63.1MPa190MPa243% stronger
Ultimate tensile strength63.1MPa1not stated (yield given)
Flexural strength82.9MPa1not sourced
Elongation at breaknot sourced10%2
Young's modulus (stiffness)2.33GPa13.5GPa21.5x stiffer
Density1,140kg/m³11,130kg/m³2
Strength to weight55.4kN·m/kg79.6kN·m/kg44% higher
Stiffness to weight2.04MN·m/kg3.1MN·m/kg1.51x higher
Poisson's ratiobase material0.43base material0.43
Shear modulus0.833GPa1.25GPa1.5x stiffer in shear
Bulk modulus3.89GPa5.83GPa1.5x higher
Speed of sound1,430m/s1,760m/s23% faster
1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUWoodAluminumSteelIronTitaniumSteel 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 PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin StandardSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH 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 GF30Plastic NylonPlastic Nylon PA6
Stiffness against densityHigher and further left: stiffer for its weight
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPURubberWoodAluminumSteelIronTitaniumSteel 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 PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin StandardSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum 3003-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Plastic NylonPlastic Nylon PA6
Strength against densityHigher and further left: stronger for its weight
ThermalPlastic NylonPlastic Nylon PA6
Thermal conductivitybase material0.33W/m·K40.33W/m·K2
Thermal expansionbase material98–102µm/m·K4longitudinal102µm/m·K2
100 mm part over a 50 °C swing500µm growth2% less510µm growth
Specific heatbase material1,700J/kg·K41,700J/kg·K2
Heats up and cools (diffusivity)0.17mm²/s0.172mm²/s
Thermal shock resistance53.6W/m7% more resistant49.9W/m
Melting point188°C1DSC220°C231.6 °C higher
Glass transition55.1°C1not sourced
Max service temperatureHDT 0.455 MPa89.2°C187°C2
1k10k0.1110100Density (kg/m³)Thermal conductivity (W/m·K)Plastic PLAPlastic PETGPlastic ABSRubberWoodAluminumSteelIronTitaniumSteel 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 PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM HIPSSLA Resin StandardDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH 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 GF30Plastic NylonPlastic Nylon PA6
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 ABSWoodAluminumSteelIronTitaniumSteel 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 PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM HIPSSLA Resin StandardDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH 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 GF30Plastic NylonPlastic Nylon PA6
Thermal expansion against thermal conductivityLower and further right: warps less when heated
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Sources4 documents: UltiMaker, BASF, Covestro
Plastic Nylon
Ultimaker Nylon, 3D-printed specimens, XY (flat), conditioned >=24 h at room temperature; Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS v2.00, April 20, 2022.
Plastic Nylon PA6
BASF Ultramid B3S (PA6, unreinforced injection-moulding grade), Product Information 02/2026, dry values (ISO methods)
  1. 1
    Ultimaker Nylon Technical Data Sheet, v5.00UltiMakerarchived copyPlastic Nylon · Yield strength: typicalPlastic Nylon · Ultimate tensile strength: typical, peak stress (= stress at yield)Plastic Nylon · Flexural strength: typicalPlastic Nylon · Young's modulus (stiffness): typicalPlastic Nylon · Density: typicalPlastic Nylon · Melting point: typicalPlastic Nylon · Glass transition: typicalPlastic Nylon · Max service temperature: HDT 0.455 MPa (printed specimens)
  2. 2
    Ultramid B3S Product InformationBASFPlastic Nylon PA6 · Yield strength: typical, dryPlastic Nylon PA6 · Elongation at break: nominal strain at break, dryPlastic Nylon PA6 · Young's modulus (stiffness): typical, dryPlastic Nylon PA6 · Density: typicalPlastic Nylon PA6 · Thermal conductivity: typicalPlastic Nylon PA6 · Thermal expansion: longitudinal, 23-55 °CPlastic Nylon PA6 · Specific heat: typicalPlastic Nylon PA6 · Melting point: DSCPlastic Nylon PA6 · Max service temperature: IEC 60216 temperature index, 20000 h
  3. 3
    Engineering Polymers Part and Mold Design: Thermoplastics, A Design GuideCovestroPlastic Nylon · Poisson's ratio: base material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1)Plastic Nylon PA6 · Poisson's ratio: base material: unfilled polyamide (PA), conditioned, maker design-guide family value (Covestro Table 3-1)
  4. 4
    Ultramid (PA) Product RangeBASFPlastic Nylon · Thermal conductivity: base material: unreinforced BASF Ultramid PA66 (A3K) and PA6 (B3S), 23 C (same value for both)Plastic Nylon · Thermal expansion: base material: unreinforced BASF Ultramid PA66 (A3K, 98) and PA6 (B3S, 102), 23-55 CPlastic Nylon · Specific heat: base material: unreinforced BASF Ultramid PA66 (A3K) and PA6 (B3S), 23 C (same value for both)

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.

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

Questions

Mechanical

Is Plastic Nylon stronger than Plastic Nylon PA6?

Plastic Nylon PA6 is stronger: its yield strength is 90 MPa against 63.1 MPa for Plastic Nylon (43%).

Which is lighter, Plastic Nylon or Plastic Nylon PA6?

Plastic Nylon PA6 is lighter: 1,130 kg/m³ against 1,140 kg/m³ for Plastic Nylon.

Which is stiffer, Plastic Nylon or Plastic Nylon PA6?

Plastic Nylon PA6 is stiffer: Young's modulus 3.5 GPa against 2.33 GPa for Plastic Nylon, so the same part in Plastic Nylon PA6 deflects less under the same load.

Which is lighter for the same job, Plastic Nylon or Plastic Nylon PA6?

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

Part that must bePlastic NylonPlastic Nylon PA6
Stiff rod or tie (tension)1.51x heavierlighter
Stiff beam (bending)24% heavierlighter
Stiff panel or plate16% heavierlighter
Strong rod or tie44% heavierlighter
Strong beam28% heavierlighter
Strong panel or plate20% 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).

Thermal

Which conducts heat better, Plastic Nylon or Plastic Nylon PA6?

Plastic Nylon conducts heat better: 0.33 W/m·K against 0.33 W/m·K for Plastic Nylon PA6.

Which expands less with temperature?

Plastic Nylon expands less: 100 µm/m·K against 102 µm/m·K for Plastic Nylon PA6.

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