Materials / Compare
Rubber vs. DMLS 17-4PH Stainless Steel
Compare Rubber vs. DMLS 17-4PH Stainless Steel 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 | not given (tensile used) | 861MPasourcemean, as built, horizontal (N=72) |
| Ultimate tensile strength | 23MPasourcetypical | 886MPasourcemean, as built, horizontal (N=72) |
| Elongation at break | 830%sourcetypical | 19.9%sourcemean at break, as built, horizontal |
| Young's modulus (stiffness) | not sourced | 197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs) |
| Density | 960kg/m³sourcetypical (specific gravity) | 7,790kg/m³sourcemean part density (ISO 3369) |
| Strength to weight | 24kN·m/kg | 110kN·m/kg4.61x higher |
| Stiffness to weight | not sourced | 25.3MN·m/kg |
| Poisson's ratio | 0.5sourcegovernment (NBS J. Res. 68A, 1964): computed by NBS for peroxide-cured gum NR vulcanizate, 25 °C, infinitesimal deformation0.49 in the solver: the linear element locks as the ratio nears 0.5 (nearly incompressible). | 0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs) |
| Shear modulus | not sourced | 77.4GPa |
| Bulk modulus | not sourced | 144GPa |
| Speed of sound | not sourced | 5,029m/s |
| Thermal | ||
| Thermal conductivity | 0.151W/m·Ksourcegovernment selected value (US Army Natick Laboratories TR 66-49-PR, 1966), soft vulcanized natural rubber, 25 °C | 17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs) |
| Thermal expansion | not sourced | 10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published) |
| 100 mm part over a 50 °C swing | not sourced | 52µm growth |
| Specific heat | 1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C | 460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs) |
| Heats up and cools (diffusivity) | 0.0836mm²/s | 5mm²/s59.7x faster |
| Thermal shock resistance | not sourced | 5,474W/m |
| Max service temperature | 70°Csourcecontinuous use operating range | not sourced |
| Values for | Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305 | EOS StainlessSteel 17-4PH IndustryLine (powder 9011-0041), EOS M 290, 40 µm, default job 17-4PH_040_StainlessM291_100, as built, horizontal; ISO 6892 & ASTM E8M |
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.
DMLS 17-4PH Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Rubber stronger than DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against tensile strength 23 MPa for Rubber (37.4x).
Which is lighter, Rubber or DMLS 17-4PH Stainless Steel?
Rubber is lighter: 960 kg/m³ against 7,790 kg/m³ for DMLS 17-4PH Stainless Steel.
Which is lighter for the same job, Rubber or DMLS 17-4PH Stainless Steel?
For the same stiffness or strength: Rubber is lighter for a strong panel or plate; DMLS 17-4PH Stainless Steel is lighter for a strong rod or tie, strong beam.
| Part that must be | Rubber | DMLS 17-4PH Stainless Steel |
|---|---|---|
| Strong rod or tie | 4.61x heavier | lighter |
| Strong beam | 38% heavier | lighter |
| Strong panel or plate | lighter | 33% 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, Rubber or DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel conducts heat better: 17.9 W/m·K against 0.151 W/m·K for Rubber.