Materials / Compare

Drywall vs. Plastic Polypropylene

Compare Drywall vs. Plastic Polypropylene strength, stiffness, weight and thermal properties.

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DrywallNatural
Plastic PolypropyleneBulk polymer (molded or machined)
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Mechanical
Yield strengthnot given (tensile used)33MPasourcetypical, tensile stress at yield ISO 527
Ultimate tensile strength1–2MPasourceambient range reported in review (Australian studies)not sourced
Compressive strength2.4MPasourcetypical, 70 F / 50% RHnot sourced
Elongation at breaknot sourcednot sourced
Young's modulus (stiffness)1–2GPasourceambient range reported in review (Australian studies)1.45GPasourcetypical, tensile modulus ISO 527
Densitynot sourced900kg/m³sourcetypical, 23 °C ISO 1183-1
Strength to weightnot sourced36.7kN·m/kg
Stiffness to weightnot sourced1.61MN·m/kg
Poisson's rationot sourced0.42sourcebase material: polypropylene homopolymer family (INEOS Olefins & Polymers USA, Typical Engineering Properties of Polypropylene)
Shear modulusnot sourced0.511GPa
Bulk modulusnot sourced3.02GPa
Speed of soundnot sourced1,269m/s
Thermal
Thermal conductivitynot sourced0.17–0.22W/m·Ksourcebase material: polypropylene homopolymer family (INEOS Olefins & Polymers USA, Typical Engineering Properties of Polypropylene)
Thermal expansion16.7µm/m·Ksourcetypical, unrestrained, 3.3-32 C80–100µm/m·Ksourcebase material: polypropylene homopolymer family (INEOS Olefins & Polymers USA, Typical Engineering Properties of Polypropylene)
100 mm part over a 50 °C swing83.5µm growth5.39x less450µm growth
Specific heat1,090J/kg·Ksourcetypical (from ASHRAE Handbook of Fundamentals, per GA)not sourced
Heats up and cools (diffusivity)not sourcednot sourced
Thermal shock resistancenot sourced28.6W/m
Max service temperature52°Csourcemanufacturer sustained-exposure limit90°CsourceHDT 0.45 MPa (ISO 75B), unannealed
Values for1/2 in. (12.7 mm) regular gypsum board (ASTM C1396), Gypsum Association GA-235-2019 typical/minimum properties; tensile and E from USDA FPL-co-authored review; service limit from USG Sheetrock 1/2 in. submittalLyondellBasell Moplen HP501H polypropylene homopolymer (general purpose), typical ISO 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 Drywall stronger than Plastic Polypropylene?

Plastic Polypropylene is stronger: its yield strength is 33 MPa against tensile strength 1.5 MPa for Drywall (22x).

Which is stiffer, Drywall or Plastic Polypropylene?

Drywall is stiffer: Young's modulus 1.5 GPa against 1.45 GPa for Plastic Polypropylene, so the same part in Drywall deflects less under the same load.

Which expands less with temperature?

Drywall expands less: 16.7 µm/m·K against 90 µm/m·K for Plastic Polypropylene.

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-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelPlastic Polypropylene
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-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic 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 SteelBrickPlastic Polypropylene
Strength against density

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