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)
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)
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)
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)
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)
Heats up and cools (diffusivity)
62.1mm²/s4.57x faster
13.6mm²/s
Thermal shock resistance
not sourced
5,473W/m
Values for
KYOCERA AN216A dense sintered aluminium nitride, typical values; KYOCERA Fineceramics Europe data sheet 2023.04.03
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
Which is lighter, Ceramic Aluminum Nitride or Steel AISI 1018?
Ceramic Aluminum Nitride is lighter: 3,400 kg/m³ against 7,861 kg/m³ for Steel AISI 1018.
Which is stiffer, Ceramic Aluminum Nitride or Steel AISI 1018?
Ceramic Aluminum Nitride is stiffer: Young's modulus 320 GPa against 200 GPa for Steel AISI 1018, so the same part in Ceramic Aluminum Nitride deflects less under the same load.
Which is lighter for the same job, Ceramic Aluminum Nitride or Steel AISI 1018?
For the same stiffness or strength: Ceramic Aluminum Nitride is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate.
Part that must be
Ceramic Aluminum Nitride
Steel AISI 1018
Stiff rod or tie (tension)
lighter
3.7x heavier
Stiff beam (bending)
lighter
2.93x heavier
Stiff panel or plate
lighter
2.7x heavier
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which conducts heat better, Ceramic Aluminum Nitride or Steel AISI 1018?
Ceramic Aluminum Nitride conducts heat better: 150 W/m·K against 51.9 W/m·K for Steel AISI 1018.
Which expands less with temperature?
Ceramic Aluminum Nitride expands less: 4.6 µm/m·K against 12 µm/m·K for Steel AISI 1018.