Precious Metal Pt95Co5 vs Pt99.95
Precious Metal · grade comparison
Precious Metal Pt95Co5 and Pt99.95 are both precious metal grades. Pt95Co5 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 45 MPa (6.53 ksi) for Pt99.95, about 5.6 times as much; tensile strength follows at 480 MPa (69.6 ksi) vs 140 MPa (20.3 ksi). In exchange, Pt99.95 is the more ductile: elongation 40% versus 20% for Pt95Co5, and Pt95Co5 is harder (128 HB vs 39 HB). Pt95Co5 is lighter (20 g/cm³ vs 21.45 g/cm³ for Pt99.95) and Pt99.95 runs hotter in service (1,500°C vs 800°C continuous). On the shop floor, Pt95Co5 machines more easily (fair vs poor).
Pt95Co5Choose it when strength drives the design, or when weight is the constraint.
Pt99.95Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Pt95Co5 vs Pt99.95: 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.
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 168 GPa24.4 Msi
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 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 80 / 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 | Pt95Co5 | Pt99.95 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Pt95Co5 vs Pt99.95 — frequently asked
Is Pt95Co5 stronger than Pt99.95?
Yes. Pt95Co5 has a typical yield strength of 250 MPa (36.3 ksi) against 45 MPa (6.53 ksi) for Pt99.95 — about 5.6 times as much. Tensile strength is 480 MPa (69.6 ksi) vs 140 MPa (20.3 ksi).
Which is cheaper, Pt95Co5 or Pt99.95?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Pt95Co5 or Pt99.95?
Pt95Co5. Its machinability rates fair (35/100) against poor (25/100) for Pt99.95; for welding the order is Pt99.95 first (excellent, 90/100) then Pt95Co5 (excellent, 85/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pt95Co5 and Pt99.95 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.