Precious Metal AuCo5 vs PtRu10
Precious Metal · grade comparison
Precious Metal AuCo5 and PtRu10 are both precious metal grades. AuCo5 is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 250 MPa (36.3 ksi) for PtRu10, about 160% more; tensile strength follows at 750 MPa (109 ksi) vs 520 MPa (75.4 ksi). In exchange, PtRu10 is the more ductile: elongation 28% versus 3% for AuCo5, and AuCo5 is harder (200 HV vs 140 HV). AuCo5 is lighter (18.2 g/cm³ vs 20 g/cm³ for PtRu10) and PtRu10 is stiffer (200 GPa vs 95 GPa). On the shop floor, AuCo5 machines more easily (fair vs poor).
AuCo5Choose it when strength drives the design, or when weight is the constraint.
PtRu10Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
AuCo5 vs PtRu10: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all precious metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all precious metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Vickers
Reduction in Area
Hardness, Brinell
Hardness, Rockwell B
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) 0.25 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Weldability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every precious metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | AuCo5 | PtRu10 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
AuCo5 vs PtRu10 — frequently asked
Is AuCo5 stronger than PtRu10?
Yes. AuCo5 has a typical yield strength of 650 MPa (94.3 ksi) against 250 MPa (36.3 ksi) for PtRu10 — about 160% more. Tensile strength is 750 MPa (109 ksi) vs 520 MPa (75.4 ksi).
Which is cheaper, AuCo5 or PtRu10?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, AuCo5 or PtRu10?
AuCo5. Its machinability rates fair (45/100) against poor (30/100) for PtRu10.
Ready to make it?
Upload a CAD file and FabDigit prices the part in AuCo5 and PtRu10 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.