Materials / Compare

Drywall vs. Steel AISI 4340

Compare Drywall vs. Steel AISI 4340 strength, stiffness, weight and thermal properties.

Change either side
DrywallNatural
Steel AISI 4340Wrought
Try it on a partA sample part to run stress or thermal on, free in your browserOpen in LessCADOpen in LessCAD
Mechanical
Yield strengthnot given (tensile used)1,035MPasourcetypical, transverse
Ultimate tensile strength1–2MPasourceambient range reported in review (Australian studies)1,140MPasourcetypical, transverse
Compressive strength2.4MPasourcetypical, 70 F / 50% RHnot sourced
Elongation at breaknot sourced18%sourcetypical, transverse
Young's modulus (stiffness)1–2GPasourceambient range reported in review (Australian studies)200GPasourceMIL-HDBK-5J design value (AISI 4340, quenched and tempered)
Densitynot sourced7,840kg/m³sourcetypical
Strength to weightnot sourced132kN·m/kg
Stiffness to weightnot sourced25.5MN·m/kg
Poisson's rationot sourced0.32sourceMIL-HDBK-5J design value (AISI 4340, quenched and tempered)
Shear modulusnot sourced75.7GPa
Bulk modulusnot sourced185GPa
Speed of soundnot sourced5,049m/s
Thermal
Thermal conductivitynot sourced37.5W/m·Ksourcetypical
Thermal expansion16.7µm/m·Ksourcetypical, unrestrained, 3.3-32 C11.3µm/m·Ksourcemean, -18 to 93 °C
100 mm part over a 50 °C swing83.5µm growth56.5µm growth48% less
Specific heat1,090J/kg·Ksourcetypical (from ASHRAE Handbook of Fundamentals, per GA)448J/kg·Ksourcetypical
Heats up and cools (diffusivity)not sourced10.7mm²/s
Thermal shock resistancenot sourced11,678W/m
Max service temperature52°Csourcemanufacturer sustained-exposure limitnot sourced
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. submittalCarpenter (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 Drywall stronger than Steel AISI 4340?

Steel AISI 4340 is stronger: its yield strength is 1,035 MPa against tensile strength 1.5 MPa for Drywall (690x).

Which is stiffer, Drywall or Steel AISI 4340?

Steel AISI 4340 is stiffer: Young's modulus 200 GPa against 1.5 GPa for Drywall, so the same part in Steel AISI 4340 deflects less under the same load.

Which expands less with temperature?

Steel AISI 4340 expands less: 11.3 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 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 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 SteelSteel AISI 4340
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 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 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 SteelBrickSteel AISI 4340
Strength against density

Related comparisons