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Drywall vs. Stainless 303

Compare Drywall vs. Stainless 303 strength, stiffness, weight and thermal properties.

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DrywallNatural
Stainless 303Wrought
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Mechanical
Yield strengthnot given (tensile used)275MPasourceOutokumpu typical (product P = hot rolled plate, transverse)
Ultimate tensile strength1–2MPasourceambient range reported in review (Australian studies)585MPasourceOutokumpu typical
Compressive strength2.4MPasourcetypical, 70 F / 50% RHnot sourced
Elongation at breaknot sourced35%sourceOutokumpu typical, A5
Young's modulus (stiffness)1–2GPasourceambient range reported in review (Australian studies)200GPasourceat RT (Table 12)
Densitynot sourced7,900kg/m³sourceat RT
Strength to weightnot sourced34.8kN·m/kg
Stiffness to weightnot sourced25.3MN·m/kg
Poisson's rationot sourced0.3sourcedesign value (structural stainless steels)
Shear modulusnot sourced76.9GPa
Bulk modulusnot sourced167GPa
Speed of soundnot sourced5,032m/s
Thermal
Thermal conductivitynot sourced15W/m·Ksourceat RT
Thermal expansion16.7µm/m·Ksourcetypical, unrestrained, 3.3-32 C16µm/m·Ksourcemean, 20–100 °C
100 mm part over a 50 °C swing83.5µm growth80µm growth4% less
Specific heat1,090J/kg·Ksourcetypical (from ASHRAE Handbook of Fundamentals, per GA)500J/kg·Ksourceat RT
Heats up and cools (diffusivity)not sourced3.8mm²/s
Thermal shock resistancenot sourced902W/m
Max service temperature52°Csourcemanufacturer sustained-exposure limit871°Csourcecontinuous, scaling limit
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. submittal1.4305 / UNS S30300, Outokumpu typical values (hot rolled, solution annealed) from 'Steel Grades, Properties and Global Standards'; max service from Carpenter CarTech 303 datasheet

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 Stainless 303?

Stainless 303 is stronger: its yield strength is 275 MPa against tensile strength 1.5 MPa for Drywall (183x).

Which is stiffer, Drywall or Stainless 303?

Stainless 303 is stiffer: Young's modulus 200 GPa against 1.5 GPa for Drywall, so the same part in Stainless 303 deflects less under the same load.

Which expands less with temperature?

Stainless 303 expands less: 16 µm/m·K against 16.7 µm/m·K for Drywall.

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

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