Precious Metal Pt90Ir10 vs Pt95W5
Precious Metal · grade comparison
Precious Metal Pt90Ir10 and Pt95W5 are both precious metal grades. Pt95W5 is the stronger of the two: tensile strength 480 MPa (69.6 ksi) against 380 MPa (55.1 ksi) for Pt90Ir10, about 26% more. In exchange, Pt90Ir10 is the more ductile: elongation 27% versus 15% for Pt95W5, and Pt95W5 is harder (128 HB vs 105 HB). Pt90Ir10 is stiffer (200 GPa vs 185 GPa) and Pt90Ir10 runs hotter in service (1,200°C vs 700°C continuous). On the shop floor, Pt90Ir10 welds better (very good vs good).
Pt90Ir10Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Pt95W5Choose it when strength drives the design.
Pt90Ir10 vs Pt95W5: 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
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Reduction in Area
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
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
Brazeability / Solderability
Polishability
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 | Pt90Ir10 | Pt95W5 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Pt90Ir10 vs Pt95W5 — frequently asked
Is Pt95W5 stronger than Pt90Ir10?
Yes. Pt95W5 has a typical tensile strength of 480 MPa (69.6 ksi) against 380 MPa (55.1 ksi) for Pt90Ir10 — about 26% more.
Which is cheaper, Pt90Ir10 or Pt95W5?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Pt90Ir10 or Pt95W5?
Pt95W5, by a small margin. Both rate poor for machinability — 30/100 against 22/100 for Pt90Ir10; for welding the order is Pt90Ir10 first (very good, 75/100) then Pt95W5 (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pt90Ir10 and Pt95W5 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.