Materials / Compare

Plywood vs. Stainless 17-4PH

Compare Plywood vs. Stainless 17-4PH strength, stiffness, weight and thermal properties.

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PlywoodNatural
Stainless 17-4PHWrought
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Mechanical
Yield strengthnot given (tensile used)1,275MPasourcetypical, transverse, sheet/strip
Ultimate tensile strength41.4MPasourcemodulus of rupture (no direct tensile value)1,379MPasourcetypical, transverse, sheet/strip
Flexural strength41.4MPasourcestatic bending MOR (Douglas-fir); range 33.72-42.61 across speciesnot sourced
Elongation at breaknot sourced9%sourcetypical, transverse, in 2 in. (50.8 mm)
Young's modulus (stiffness)7.45GPasourcestatic bending MOE of the panel (Douglas-fir); range 6.96-8.55 across species197GPasourceH 900
Densitynot sourced7,800kg/m³sourceH 900
Strength to weightnot sourced163kN·m/kg
Stiffness to weightnot sourced25.3MN·m/kg
Poisson's rationot sourced0.272sourceH 900 (column)
Shear modulusnot sourced77.4GPa
Bulk modulusnot sourced144GPa
Speed of soundnot sourced5,026m/s
Thermal
Thermal conductivity0.12W/m·KsourceAPA-recommended design value (Douglas-fir plywood), as reported by FPL/ORNL17.9W/m·Ksourceat 149 °C (300 °F), H 900
Thermal expansion3.1–4.5µm/m·Ksourcebase material: solid wood parallel to grain, ovendry, range across species10.8µm/m·Ksourcemean, 21–93 °C (70–200 °F), H 900
100 mm part over a 50 °C swing19µm growth2.84x less54µm growth
Specific heat1,700J/kg·Ksourcebase material: solid wood (all species), 12% MC, 27 C460J/kg·Ksourcemean, 0–100 °C, H 900
Heats up and cools (diffusivity)not sourced4.99mm²/s
Thermal shock resistancenot sourced7,809W/m
Max service temperaturenot sourced316°Csourcestrength-retention limit (not oxidation)
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)Cleveland-Cliffs 17-4 PH, Condition H 900, sheet/strip, transverse (Product Data Bulletin, May 2021)

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 Stainless 17-4PH?

Stainless 17-4PH is stronger: its yield strength is 1,275 MPa against tensile strength 41.4 MPa for Plywood (30.8x).

Which is stiffer, Plywood or Stainless 17-4PH?

Stainless 17-4PH is stiffer: Young's modulus 197 GPa against 7.45 GPa for Plywood, so the same part in Stainless 17-4PH deflects less under the same load.

Which conducts heat better, Plywood or Stainless 17-4PH?

Stainless 17-4PH conducts heat better: 17.9 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 10.8 µm/m·K for Stainless 17-4PH.

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 303Aluminum 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 SteelDMLS 17-4PH Stainless SteelStainless 17-4PH
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 303Aluminum 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 SteelDMLS 17-4PH Stainless SteelBrickStainless 17-4PH
Strength against density

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