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Plywood vs. Zinc Zamak 3

Compare Plywood vs. Zinc Zamak 3 strength, stiffness, weight and thermal properties.

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PlywoodNatural
Zinc Zamak 3Cast
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Mechanical
Yield strengthnot given (tensile used)221MPasourcetypical
Ultimate tensile strength41.4MPasourcemodulus of rupture (no direct tensile value)283MPasourcetypical
Flexural strength41.4MPasourcestatic bending MOR (Douglas-fir); range 33.72-42.61 across speciesnot sourced
Elongation at breaknot sourced10%sourcetypical, in 2 in.
Young's modulus (stiffness)7.45GPasourcestatic bending MOE of the panel (Douglas-fir); range 6.96-8.55 across species85.5GPasourcetypical
Densitynot sourced6,600kg/m³sourcetypical
Strength to weightnot sourced33.5kN·m/kg
Stiffness to weightnot sourced13MN·m/kg
Poisson's rationot sourced0.27sourcetypical, Zamak 3 hot-chamber die cast
Shear modulusnot sourced33.7GPa
Bulk modulusnot sourced62GPa
Speed of soundnot sourced3,599m/s
Thermal
Thermal conductivity0.12W/m·KsourceAPA-recommended design value (Douglas-fir plywood), as reported by FPL/ORNL113W/m·Ksourcetypical
Thermal expansion3.1–4.5µm/m·Ksourcebase material: solid wood parallel to grain, ovendry, range across species27.4µm/m·Ksourcetypical
100 mm part over a 50 °C swing19µm growth7.21x less137µm growth
Specific heat1,700J/kg·Ksourcebase material: solid wood (all species), 12% MC, 27 C419J/kg·Ksourcetypical
Heats up and cools (diffusivity)not sourced40.9mm²/s
Thermal shock resistancenot sourced7,782W/m
Melting pointnot sourced381–387°Csourcemelting range
Values forDouglas-fir plywood sheathing (construction plywood per PS 1), static bending properties from USDA FPL Wood Handbook FPL-GTR-282 Ch. 12 Table 12-2 (Biblis 2000)Zamak 3 (ASTM B86 die cast), Nathan Trotter (zinc alloy producer) technical data sheet, typical values

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.

Questions

Is Plywood stronger than Zinc Zamak 3?

Zinc Zamak 3 is stronger: its yield strength is 221 MPa against tensile strength 41.4 MPa for Plywood (5.34x).

Which is stiffer, Plywood or Zinc Zamak 3?

Zinc Zamak 3 is stiffer: Young's modulus 85.5 GPa against 7.45 GPa for Plywood, so the same part in Zinc Zamak 3 deflects less under the same load.

Which conducts heat better, Plywood or Zinc Zamak 3?

Zinc Zamak 3 conducts heat better: 113 W/m·K against 0.12 W/m·K for Plywood.

Which expands less with temperature?

Plywood expands less: 3.8 µm/m·K against 27.4 µm/m·K for Zinc Zamak 3.

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-H24Plastic 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 SteelDMLS 17-4PH Stainless SteelZinc Zamak 3
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-H24Plastic 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 SteelDMLS 17-4PH Stainless SteelBrickZinc Zamak 3
Strength against density

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