Precious Metal Pt90Ir10 vs Pt95Rh5 gauze
Precious Metal · grade comparison
Precious Metal Pt90Ir10 and Pt95Rh5 gauze are both precious metal grades. Pt95Rh5 gauze is the stronger of the two: tensile strength 420 MPa (60.9 ksi) against 380 MPa (55.1 ksi) for Pt90Ir10, about 11% more. In exchange, Pt90Ir10 is the more ductile: elongation 27% versus 20% for Pt95Rh5 gauze, and Pt90Ir10 is harder (105 HB vs 85 HB). Pt95Rh5 gauze is lighter (20.65 g/cm³ vs 21.54 g/cm³ for Pt90Ir10) and Pt90Ir10 is stiffer (200 GPa vs 180 GPa). On the shop floor, Pt95Rh5 gauze welds better (excellent vs very good).
Pt90Ir10Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Pt95Rh5 gauzeChoose it when strength drives the design, or when weight is the constraint.
Pt90Ir10 vs Pt95Rh5 gauze: 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
Shear Strength
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Fatigue Strength (Endurance Limit)
Same in both: Poisson's Ratio 0.39
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Same in both: Liquidus Temperature 1,800°C3,272 °F
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).
Same in both: Galvanic Potential (seawater, vs SCE) 0.25 V · Corrosion Resistance 99 / 100
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 Carbon (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 250,000 MJ/kg1.07×10⁸ BTU/lb
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 | Pt95Rh5 gauze |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Pt90Ir10 vs Pt95Rh5 gauze — frequently asked
Is Pt95Rh5 gauze stronger than Pt90Ir10?
Yes. Pt95Rh5 gauze has a typical tensile strength of 420 MPa (60.9 ksi) against 380 MPa (55.1 ksi) for Pt90Ir10 — about 11% more.
Which is cheaper, Pt90Ir10 or Pt95Rh5 gauze?
Both sit in the same relative cost tier ($$$$, 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 Pt95Rh5 gauze?
Pt95Rh5 gauze, by a small margin. Both rate poor for machinability — 30/100 against 22/100 for Pt90Ir10; for welding the order is Pt95Rh5 gauze first (excellent, 85/100) then Pt90Ir10 (very good, 75/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Pt90Ir10 and Pt95Rh5 gauze 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.