1–2GPasourceambient range reported in review (Australian studies)
200GPasourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018)
Density
not sourced
7,861kg/m³sourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018)
Strength to weight
not sourced
47.3kN·m/kg
Stiffness to weight
not sourced
25.4MN·m/kg
Poisson's ratio
not sourced
0.32sourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018)
Shear modulus
not sourced
75.7GPa
Bulk modulus
not sourced
185GPa
Speed of sound
not sourced
5,043m/s
Thermal
Thermal conductivity
not sourced
51.9W/m·Ksourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018)
12µm/m·Ksourcebase material: unalloyed carbon steel, Ovako family table (S275JR, 'none alloyed structural steels', C <= 0.21%); mean 20-300 °C
100 mm part over a 50 °C swing
83.5µm growth
60µm growth39% less
Specific heat
1,090J/kg·Ksourcetypical (from ASHRAE Handbook of Fundamentals, per GA)
486J/kg·Ksourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018)
1/2 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. submittal
AISI 1018 cold drawn bar (Niagara LaSalle, cold-finished bar producer)
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 1018?
Steel AISI 1018 is stronger: its yield strength is 372 MPa against tensile strength 1.5 MPa for Drywall (248x).
Which is stiffer, Drywall or Steel AISI 1018?
Steel AISI 1018 is stiffer: Young's modulus 200 GPa against 1.5 GPa for Drywall, so the same part in Steel AISI 1018 deflects less under the same load.
Which expands less with temperature?
Steel AISI 1018 expands less: 12 µm/m·K against 16.7 µm/m·K for Drywall.