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Drywall vs. Stainless Steel 303

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

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DrywallNatural
Stainless Steel 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 Steel 303?

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

Which is stiffer, Drywall or Stainless Steel 303?

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

Which expands less with temperature?

Stainless Steel 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 Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 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 Steel 303
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 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 Steel 303
Strength against density

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