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Plywood vs. Steel AISI 4340 Compare Plywood vs. Steel AISI 4340 strength, stiffness, weight and thermal properties.
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Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic PTFE Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA Rubber Wood Aluminum Aluminum 6061-T6 Aluminum 7075-T6 Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Steel Steel AISI 1018 Steel AISI 1045 Steel AISI 4340 Steel A992 Iron Titanium Titanium Ti-6Al-4V Stainless 304 Stainless 316 Stainless 303 Stainless 17-4PH Brass C360 Brass C260 Copper C110 Glass Nickel Inconel 718 Magnesium AZ31B-H24 Zinc Zamak 3 FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Standard SLA Resin Tough 2000 SLA Resin Elastic 50A SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Concrete Brick Plywood Drywall Plywood Natural Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic PTFE Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA Rubber Wood Aluminum Aluminum 6061-T6 Aluminum 7075-T6 Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Steel Steel AISI 1018 Steel AISI 1045 Steel AISI 4340 Steel A992 Iron Titanium Titanium Ti-6Al-4V Stainless 304 Stainless 316 Stainless 303 Stainless 17-4PH Brass C360 Brass C260 Copper C110 Glass Nickel Inconel 718 Magnesium AZ31B-H24 Zinc Zamak 3 FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Standard SLA Resin Tough 2000 SLA Resin Elastic 50A SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Concrete Brick Plywood Drywall Steel AISI 4340 Wrought Try it on a partA sample part to run stress or thermal on, free in your browser Open in LessCAD Open in LessCAD Mechanical Yield strength not given (tensile used) 1,035 MPa source typical, transverse Ultimate tensile strength 41.4 MPa source modulus of rupture (no direct tensile value) 1,140 MPa source typical, transverse Flexural strength 41.4 MPa source static bending MOR (Douglas-fir); range 33.72-42.61 across species not sourced Elongation at break not sourced 18 % source typical, transverse Young's modulus (stiffness) 7.45 GPa source static bending MOE of the panel (Douglas-fir); range 6.96-8.55 across species 200 GPa source MIL-HDBK-5J design value (AISI 4340, quenched and tempered) Density not sourced 7,840 kg/m³ source typical Strength to weight not sourced 132 kN·m/kg Stiffness to weight not sourced 25.5 MN·m/kg Poisson's ratio not sourced 0.32 source MIL-HDBK-5J design value (AISI 4340, quenched and tempered) Shear modulus not sourced 75.7 GPa Bulk modulus not sourced 185 GPa Speed of sound not sourced 5,049 m/s Thermal Thermal conductivity 0.12 W/m·K source APA-recommended design value (Douglas-fir plywood), as reported by FPL/ORNL 37.5 W/m·K source typical Thermal expansion 3.1–4.5 µm/m·K source base material: solid wood parallel to grain, ovendry, range across species 11.3 µm/m·K source mean, -18 to 93 °C 100 mm part over a 50 °C swing 19 µm growth 2.97x less 56.5 µm growth Specific heat 1,700 J/kg·K source base material: solid wood (all species), 12% MC, 27 C 448 J/kg·K source typical Heats up and cools (diffusivity) not sourced 10.7 mm²/s Thermal shock resistance not sourced 11,678 W/m Values for Douglas-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) Carpenter (Latrobe) Lescalloy 4340 VAC-ARC datasheet; mechanical row for 1100 °F temper; physical properties grade-level
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 Steel AISI 4340? Steel AISI 4340 is stronger: its yield strength is 1,035 MPa against tensile strength 41.4 MPa for Plywood (25x).
Which is stiffer, Plywood or Steel AISI 4340? Steel AISI 4340 is stiffer: Young's modulus 200 GPa against 7.45 GPa for Plywood, so the same part in Steel AISI 4340 deflects less under the same load.
Which conducts heat better, Plywood or Steel AISI 4340? Steel AISI 4340 conducts heat better: 37.5 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 11.3 µm/m·K for Steel AISI 4340.
Among 59 materials 1k 10k 0.1 1 10 100 Density (kg/m³) Young's modulus (GPa) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Aluminum Steel Iron Titanium Steel AISI 1018 Stainless 304 Stainless 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Glass Steel AISI 1045 Steel A992 Stainless 303 Stainless 17-4PH Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Titanium Ti-6Al-4V Brass C260 Nickel Inconel 718 Magnesium AZ31B-H24 Zinc Zamak 3 Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Tough 2000 SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Steel AISI 4340 Stiffness against density 1k 10k 10 100 1k Density (kg/m³) Yield strength (MPa) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Rubber Aluminum Steel Iron Titanium Steel AISI 1018 Stainless 304 Stainless 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Glass Steel AISI 1045 Steel A992 Stainless 303 Stainless 17-4PH Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Titanium Ti-6Al-4V Brass C260 Nickel Inconel 718 Magnesium AZ31B-H24 Zinc Zamak 3 Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic PTFE Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Tough 2000 SLA Resin Elastic 50A SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Brick Steel AISI 4340 Strength against density