Materials / Compare
Steel vs. Steel A992
Compare Steel vs. Steel A992 strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 385MPasourcetypical: mean of 20,295 A992 flange mill-test coupons (1998 SSPC survey), as reported by AISC | 385MPasourcetypical: mean of 20,295 A992 flange mill-test coupons (1998 SSPC survey), as reported by AISC |
| Ultimate tensile strength | 505MPasourcetypical: mean of 20,295 A992 flange mill-test coupons (1998 SSPC survey) | 505MPasourcetypical: mean of 20,295 A992 flange mill-test coupons (1998 SSPC survey) |
| Elongation at break | not sourced | not sourced |
| Young's modulus (stiffness) | 200GPasourcedesign value (AISC 360-16) | 200GPasourcedesign value (AISC 360-16) |
| Density | 7,850kg/m³sourcenominal (constructional data) | 7,850kg/m³sourcenominal (constructional data) |
| Strength to weight | 49kN·m/kg | 49kN·m/kg |
| Stiffness to weight | 25.5MN·m/kg | 25.5MN·m/kg |
| Poisson's ratio | 0.3sourcedesign value (AISC 360-16 Commentary) | 0.3sourcedesign value (AISC 360-16 Commentary) |
| Shear modulus | 76.9GPa | 76.9GPa |
| Bulk modulus | 167GPa | 167GPa |
| Speed of sound | 5,048m/s | 5,048m/s |
| Thermal | ||
| Thermal conductivity | 48W/m·Ksourcenominal at 20 °C | 48W/m·Ksourcenominal at 20 °C |
| Thermal expansion | 12µm/m·Ksourcenominal (constructional data, no temperature range stated) | 12µm/m·Ksourcenominal (constructional data, no temperature range stated) |
| 100 mm part over a 50 °C swing | 60µm growth | 60µm growth |
| Specific heat | 460–480J/kg·Ksourcebase material: EN S275JR unalloyed structural steel (the EN counterpart of A36), typical, 50/100 °C | 460–480J/kg·Ksourcebase material: EN S275JR unalloyed structural steel (the EN counterpart of A36), typical, 50/100 °C |
| Heats up and cools (diffusivity) | 13mm²/s | 13mm²/s |
| Thermal shock resistance | 5,390W/m | 5,390W/m |
| Values for | Generic structural steel, cited as ASTM A992 (the current US structural grade): ASTM A992 W-shapes; Fy/Fu specified minimums from AISC publications (AISC 360-16 Commentary; Modern Steel Construction); elastic constants AISC 360; physical constants from the bauforumstahl structural-steel EPD, which names A992 among covered product standards. | ASTM A992 W-shapes; Fy/Fu specified minimums from AISC publications (AISC 360-16 Commentary; Modern Steel Construction); elastic constants AISC 360; physical constants from the bauforumstahl structural-steel EPD, which names A992 among covered product standards. |
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 Steel stronger than Steel A992?
Steel is stronger: its yield strength is 385 MPa against 385 MPa for Steel A992 (0%).
Which is lighter, Steel or Steel A992?
Steel is lighter: 7,850 kg/m³ against 7,850 kg/m³ for Steel A992.
Which is stiffer, Steel or Steel A992?
Steel is stiffer: Young's modulus 200 GPa against 200 GPa for Steel A992, so the same part in Steel deflects less under the same load.
Which is lighter for the same job, Steel or Steel A992?
For the same stiffness or strength they weigh about the same.
| Part that must be | Steel | Steel A992 |
|---|---|---|
| Stiff rod or tie (tension) | about equal | about equal |
| Stiff beam (bending) | about equal | about equal |
| Stiff panel or plate | about equal | about equal |
| Strong rod or tie | about equal | about equal |
| Strong beam | about equal | about equal |
| Strong panel or plate | about equal | about equal |
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, Steel or Steel A992?
Steel conducts heat better: 48 W/m·K against 48 W/m·K for Steel A992.
Which expands less with temperature?
Steel expands less: 12 µm/m·K against 12 µm/m·K for Steel A992.