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SLS PA12 Nylon vs. Solder SAC305

Compare SLS PA12 Nylon vs. Solder SAC305 strength, stiffness, weight and thermal properties.

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SLS PA12 Nylon3D printed (SLS)
Solder SAC305Cast
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Mechanical
Yield strengthnot given (tensile used)22MPasourcetypical
Ultimate tensile strength48MPasourcetypical21% stronger39.6MPasourcetypical
Elongation at break18%sourcetypical49%sourcetypical2.72x more ductile
Young's modulus (stiffness)1.65GPasourcetypical6.9GPasourcetypical, temperature and strain rate not stated
Density930kg/m³sourcetypical7.9x lighter7,350kg/m³sourcetypical
Strength to weight51.6kN·m/kg17.2x higher2.99kN·m/kg
Stiffness to weight1.77MN·m/kg1.89x higher0.939MN·m/kg
Poisson's rationot sourced0.35sourcetypical
Shear modulusnot sourced2.56GPa
Bulk modulusnot sourced7.67GPa
Speed of sound1,332m/s969m/s
Thermal
Thermal conductivitynot sourced61W/m·Ksourcetypical, temperature not stated
Thermal expansionnot sourced21.9µm/m·Ksourcemean, 20-100 °C (MacDermid Alpha)
100 mm part over a 50 °C swingnot sourced110µm growth
Specific heatnot sourced232J/kg·Ksourcetypical (MacDermid Alpha)
Heats up and cools (diffusivity)not sourced35.8mm²/s
Thermal shock resistancenot sourced5,773W/m
Melting point176°Csourcetypical217–220°Csourcesolidus-liquidus
Max service temperature64°CsourceHDT 1.8 MPa, X orientationnot sourced
Values forEOS PA 2200 (PA12) Material Data Sheet, process parameter 'Balance' at 120 µm layer thickness, X orientation, dry (conditioned values not given). Live MDS status 04.10.2026, last changed 10.09.2026; PDF via ?topdf=... link on the same page.SAC305 (Sn96.5Ag3.0Cu0.5) solder alloy, bulk; Indium Corporation Indalloy 256 (SAC305) for Preforms product data sheet (Form No. 100346 R0, 2024), selected properties, test temperature not stated; expansion and specific heat from MacDermid Alpha VACULOY SAC TDS (06 September 2023).

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.

SLS PA12 Nylon is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is SLS PA12 Nylon stronger than Solder SAC305?

SLS PA12 Nylon is stronger: its tensile strength is 48 MPa against yield strength 22 MPa for Solder SAC305 (2.18x).

Which is lighter, SLS PA12 Nylon or Solder SAC305?

SLS PA12 Nylon is lighter: 930 kg/m³ against 7,350 kg/m³ for Solder SAC305.

Which is stiffer, SLS PA12 Nylon or Solder SAC305?

Solder SAC305 is stiffer: Young's modulus 6.9 GPa against 1.65 GPa for SLS PA12 Nylon, so the same part in Solder SAC305 deflects less under the same load.

Which is lighter for the same job, SLS PA12 Nylon or Solder SAC305?

For the same stiffness or strength: SLS PA12 Nylon 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 beSLS PA12 NylonSolder SAC305
Stiff rod or tie (tension)lighter1.89x heavier
Stiff beam (bending)lighter3.86x heavier
Stiff panel or platelighter4.91x heavier
Strong rod or tielighter17.2x heavier
Strong beamlighter13.3x heavier
Strong panel or platelighter11.7x 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 is more ductile, SLS PA12 Nylon or Solder SAC305?

Solder SAC305 stretches further before it breaks: 49% elongation at break against 18% for SLS PA12 Nylon.

Among 72 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 HIPSSLA Resin Tough 2000DMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DPlastic PBT GF30Plastic PPS GF40Plastic LCP GF30SLS PA12 NylonSolder SAC305
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 Tough 2000SLA Resin Elastic 50ADMLS 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 ADC12Magnesium AZ91DPlastic PBT GF30Plastic PPS GF40Plastic LCP GF30SLS PA12 NylonSolder SAC305
Strength against density

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