Materials / Compare

DMLS 17-4PH Stainless Steel vs. Solder SAC305

Compare DMLS 17-4PH Stainless Steel vs. Solder SAC305 strength, stiffness, weight and thermal properties.

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DMLS 17-4PH Stainless Steel3D printed metal (DMLS)
Solder SAC305Cast
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Mechanical
Yield strength861MPasourcemean, as built, horizontal (N=72)22MPasourcetypical
Ultimate tensile strength886MPasourcemean, as built, horizontal (N=72)39.6MPasourcetypical
Elongation at break19.9%sourcemean at break, as built, horizontal49%sourcetypical
Young's modulus (stiffness)197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)6.9GPasourcetypical, temperature and strain rate not stated
Density7,790kg/m³sourcemean part density (ISO 3369)7,350kg/m³sourcetypical
Strength to weight110kN·m/kg36.9x higher2.99kN·m/kg
Stiffness to weight25.3MN·m/kg26.9x higher0.939MN·m/kg
Poisson's ratio0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)0.35sourcetypical
Shear modulus77.4GPa30.3x stiffer in shear2.56GPa
Bulk modulus144GPa7.67GPa
Speed of sound5,029m/s969m/s
Thermal
Thermal conductivity17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)61W/m·Ksourcetypical, temperature not stated
Thermal expansion10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)21.9µm/m·Ksourcemean, 20-100 °C (MacDermid Alpha)
100 mm part over a 50 °C swing52µm growth2.11x less110µm growth
Specific heat460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)232J/kg·Ksourcetypical (MacDermid Alpha)
Heats up and cools (diffusivity)5mm²/s35.8mm²/s7.16x faster
Thermal shock resistance5,474W/m5,773W/m5% more resistant
Melting pointnot sourced217–220°Csourcesolidus-liquidus
Values forEOS 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 E8MSAC305 (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.

DMLS 17-4PH Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is DMLS 17-4PH Stainless Steel stronger than Solder SAC305?

DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against 22 MPa for Solder SAC305 (39.1x).

Which is lighter, DMLS 17-4PH Stainless Steel or Solder SAC305?

Solder SAC305 is lighter: 7,350 kg/m³ against 7,790 kg/m³ for DMLS 17-4PH Stainless Steel.

Which is stiffer, DMLS 17-4PH Stainless Steel or Solder SAC305?

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 6.9 GPa for Solder SAC305, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.

Which is lighter for the same job, DMLS 17-4PH Stainless Steel or Solder SAC305?

For the same stiffness or strength: DMLS 17-4PH Stainless Steel 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 beDMLS 17-4PH Stainless SteelSolder SAC305
Stiff rod or tie (tension)lighter26.9x heavier
Stiff beam (bending)lighter5.04x heavier
Stiff panel or platelighter2.88x heavier
Strong rod or tielighter36.9x heavier
Strong beamlighter10.9x heavier
Strong panel or platelighter5.9x 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 conducts heat better, DMLS 17-4PH Stainless Steel or Solder SAC305?

Solder SAC305 conducts heat better: 61 W/m·K against 17.9 W/m·K for DMLS 17-4PH Stainless Steel.

Which expands less with temperature?

DMLS 17-4PH Stainless Steel expands less: 10.4 µm/m·K against 21.9 µm/m·K for Solder SAC305.

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 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DPlastic PBT GF30Plastic PPS GF40Plastic LCP GF30DMLS 17-4PH Stainless SteelSolder 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 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DPlastic PBT GF30Plastic PPS GF40Plastic LCP GF30DMLS 17-4PH Stainless SteelSolder SAC305
Strength against density

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