Precious Metal Pt95W5 vs Pt99.95
Precious Metal · grade comparison
Precious Metal Pt95W5 and Pt99.95 are both precious metal grades. Pt95W5 is the stronger of the two: yield strength 215 MPa (31.2 ksi) against 45 MPa (6.53 ksi) for Pt99.95, about 4.8 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 15% for Pt95W5, and Pt95W5 is harder (128 HB vs 39 HB). Pt95W5 is stiffer (185 GPa vs 168 GPa) and Pt99.95 runs hotter in service (1,500°C vs 700°C continuous). On the shop floor, Pt99.95 welds better (excellent vs good).
Pt95W5Choose it when strength drives the design.
Pt99.95Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Pt95W5 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
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: Poisson's Ratio 0.38
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)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Latent Heat of Fusion 113 J/g48.6 BTU/lb
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
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 25%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Typical Recycled Content
Embodied Water
Same in both: Embodied Carbon (primary production) 14,000 kg CO₂/kg
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 | Pt95W5 | Pt99.95 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Pt95W5 vs Pt99.95 — frequently asked
Is Pt95W5 stronger than Pt99.95?
Yes. Pt95W5 has a typical yield strength of 215 MPa (31.2 ksi) against 45 MPa (6.53 ksi) for Pt99.95 — about 4.8 times as much. Tensile strength is 480 MPa (69.6 ksi) vs 140 MPa (20.3 ksi).
Which is cheaper, Pt95W5 or Pt99.95?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Pt95W5 or Pt99.95?
Pt95W5, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for Pt99.95; for welding the order is Pt99.95 first (excellent, 90/100) then Pt95W5 (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pt95W5 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.