Materials / Compare
Brass C260 vs. DMLS 17-4PH Stainless Steel
Compare Brass C260 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 | 345MPasourcenominal, strip/flat, 0.5% extension (not 0.2% offset) | 861MPasourcemean, as built, horizontal (N=72) |
| Ultimate tensile strength | 427MPasourcenominal, strip/flat | 886MPasourcemean, as built, horizontal (N=72) |
| Elongation at break | 23%sourcenominal, in 2.0 in., strip/flat | 19.9%sourcemean at break, as built, horizontal |
| Young's modulus (stiffness) | 110GPasourcetypical, temper-independent | 197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs) |
| Density | 8,525kg/m³sourcenominal | 7,790kg/m³sourcemean part density (ISO 3369) |
| Strength to weight | 40.5kN·m/kg | 110kN·m/kg2.73x higher |
| Stiffness to weight | 12.9MN·m/kg | 25.3MN·m/kg1.95x higher |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-M30 = CuZn30 = C26000, rolled products) | 0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs) |
| Shear modulus | 41.2GPa | 77.4GPa1.88x stiffer in shear |
| Bulk modulus | 115GPa | 144GPa |
| Speed of sound | 3,597m/s | 5,029m/s |
| Thermal | ||
| Thermal conductivity | 121W/m·Ksourcetypical, 20 °C | 17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs) |
| Thermal expansion | 20µm/m·Ksourcetypical, mean 20-300 °C | 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 | 100µm growth | 52µm growth1.92x less |
| Specific heat | 377J/kg·Ksourcetypical, 20 °C | 460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs) |
| Heats up and cools (diffusivity) | 37.7mm²/s7.55x faster | 5mm²/s |
| Thermal shock resistance | 12,510W/m2.29x more resistant | 5,474W/m |
| Melting point | 916–954°Csourcesolidus-liquidus | not sourced |
| Values for | C26000 cartridge brass, H02 half hard flat/strip: CDA Electronic Connector Design Guide (mechanical) + CDA alloy page (physical) | 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 Brass C260 stronger than DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against 345 MPa for Brass C260 (2.49x).
Which is lighter, Brass C260 or DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is lighter: 7,790 kg/m³ against 8,525 kg/m³ for Brass C260.
Which is stiffer, Brass C260 or DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 110 GPa for Brass C260, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.
Which is lighter for the same job, Brass C260 or DMLS 17-4PH Stainless Steel?
For the same stiffness or strength: DMLS 17-4PH Stainless Steel is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Brass C260 | DMLS 17-4PH Stainless Steel |
|---|---|---|
| Stiff rod or tie (tension) | 1.95x heavier | lighter |
| Stiff beam (bending) | 46% heavier | lighter |
| Stiff panel or plate | 33% heavier | lighter |
| Strong rod or tie | 2.73x heavier | lighter |
| Strong beam | 2.01x heavier | lighter |
| Strong panel or plate | 1.73x heavier | lighter |
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, Brass C260 or DMLS 17-4PH Stainless Steel?
Brass C260 conducts heat better: 121 W/m·K against 17.9 W/m·K for DMLS 17-4PH Stainless Steel.
Which expands less with temperature?
DMLS 17-4PH Stainless Steel expands less: 10.4 µm/m·K against 20 µm/m·K for Brass C260.