Materials / Compare
Copper C10100 vs. DMLS 17-4PH Stainless Steel
Compare Copper C10100 vs. DMLS 17-4PH Stainless Steel strength, stiffness, weight and thermal properties.
| Mechanical | Copper C10100 | DMLS 17-4PH Stainless Steel |
|---|---|---|
| Yield strength | 69MPa1 | mean861MPa212.5x stronger |
| Ultimate tensile strength | 221MPa1 | mean886MPa24.01x stronger |
| Elongation at break | 45%12.26x more ductile | mean at break19.9%2 |
| Young's modulus (stiffness) | 117GPa1 | base material197GPa31.68x stiffer |
| Density | 8,941kg/m³1 | mean part density7,790kg/m³215% lighter |
| Strength to weight | 7.72kN·m/kg | 110kN·m/kg14.3x higher |
| Stiffness to weight | 13.1MN·m/kg | 25.3MN·m/kg1.93x higher |
| Poisson's ratio | 0.344 | base material0.2723 |
| Shear modulus | 43.7GPa | 77.4GPa1.77x stiffer in shear |
| Bulk modulus | 122GPa | 144GPa18% higher |
| Speed of sound | 3,621m/s | 5,029m/s39% faster |
| Thermal | Copper C10100 | DMLS 17-4PH Stainless Steel |
|---|---|---|
| Thermal conductivity | 391W/m·K121.8x more heat through a fin | base material17.9W/m·K3 |
| Thermal expansion | 16.9µm/m·K1 | mean 25-100 °C10.4µm/m·K21.62x less |
| 100 mm part over a 50 °C swing | 84.5µm growth | 52µm growth1.63x less |
| Specific heat | 385J/kg·K1 | base material460J/kg·K319% higher |
| Heats up and cools (diffusivity) | 114mm²/s22.7x faster | 5mm²/s |
| Thermal shock resistance | 8,992W/m1.64x more resistant | 5,474W/m |
| Melting point | melting point1,083°C1 | not sourced |
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|
Sources4 documents: Copper Development Association, EOS GmbH, Cleveland-Cliffs, Wieland
- Copper C10100
- C10100 oxygen-free electronic (OFE) copper, annealed to 0.050 mm grain size (OS050), 0.04 in. flat products, copper.org typical values
- DMLS 17-4PH Stainless Steel
- 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
- 1C10100 Alloy (copper.org)Copper Development Associationarchived copyCopper C10100 · Yield strength: typical, 0.5% extension under load, 0.04 in. flatCopper C10100 · Ultimate tensile strength: typical, 0.04 in. flatCopper C10100 · Elongation at break: typical, 0.04 in. flatCopper C10100 · Young's modulus (stiffness): typicalCopper C10100 · Density: nominalCopper C10100 · Thermal conductivity: typical, 20 °CCopper C10100 · Thermal expansion: typical, mean 20-100 °CCopper C10100 · Specific heat: typical, 20 °CCopper C10100 · Melting point: melting point (liquidus = solidus, pure copper)
- 2EOS StainlessSteel 17-4PH IndustryLine Material Data Sheet, M 290EOS GmbHarchived copyDMLS 17-4PH Stainless Steel · Yield strength: mean, as built, horizontal (N=72)DMLS 17-4PH Stainless Steel · Ultimate tensile strength: mean, as built, horizontal (N=72)DMLS 17-4PH Stainless Steel · Elongation at break: mean at break, as built, horizontalDMLS 17-4PH Stainless Steel · Density: mean part density (ISO 3369)DMLS 17-4PH Stainless Steel · Thermal expansion: mean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)
- 317-4 PH Stainless Steel Product Data Bulletin (2021)Cleveland-CliffsDMLS 17-4PH Stainless Steel · Young's modulus (stiffness): base material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)DMLS 17-4PH Stainless Steel · Poisson's ratio: base material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)DMLS 17-4PH Stainless Steel · Thermal conductivity: base material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)DMLS 17-4PH Stainless Steel · Specific heat: base material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)
- 4Wieland-K09 (Cu-OFE, C10100) Data SheetWielandCopper C10100 · Poisson's ratio: reference value at room temperature (Wieland-K09 = Cu-OFE = C10100, rolled products)
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "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
Mechanical
Is Copper C10100 stronger than DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against 69 MPa for Copper C10100 (12.5x).
Which is lighter, Copper C10100 or DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is lighter: 7,790 kg/m³ against 8,941 kg/m³ for Copper C10100.
Which is stiffer, Copper C10100 or DMLS 17-4PH Stainless Steel?
DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 117 GPa for Copper C10100, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.
Which is lighter for the same job, Copper C10100 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 | Copper C10100 | DMLS 17-4PH Stainless Steel |
|---|---|---|
| Stiff rod or tie (tension) | 1.93x heavier | lighter |
| Stiff beam (bending) | 49% heavier | lighter |
| Stiff panel or plate | 36% heavier | lighter |
| Strong rod or tie | 14.3x heavier | lighter |
| Strong beam | 6.17x heavier | lighter |
| Strong panel or plate | 4.05x 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 is more ductile, Copper C10100 or DMLS 17-4PH Stainless Steel?
Copper C10100 stretches further before it breaks: 45% elongation at break against 19.9% for DMLS 17-4PH Stainless Steel.
Thermal
Which conducts heat better, Copper C10100 or DMLS 17-4PH Stainless Steel?
Copper C10100 conducts heat better: 391 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 16.9 µm/m·K for Copper C10100.
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