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Formula: Pt90/Ir10
Form: Tube
Material: Platinum/Iridium Alloy
Commodity: Precious Metals
Temper:
As Drawn
Platinum/Iridium Alloy Tube (Pt90/Ir10) is a high-performance alloy offered by Goodfellow in its range of tubes. With 27 variations, this alloy combines the corrosion resistance of platinum with the hardness of iridium. Typical applications for Platinum/Iridium alloy tubes include electrical contacts, crucibles, thermocouple elements, and components for the glass, chemical, and medical industries where corrosion resistance and high-temperature performance are required.
Tolerances
Tube
| Outside Diameter | =<2mm | ±0.05mm |
|---|---|---|
| Outside Diameter | 2mm - 5mm | ±0.1mm |
| Outside Diameter | >5mm | ±5% |
| Wall Thickness | ±10% |
Material Properties for Precious Metals
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 130-190 |
| Elongation at break( % ) | <25 |
| Tensile strength( MPa ) | 380-620 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 25 |
| Temperature coefficient( K⁻¹ ) | 0.0013 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1800 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 31@23 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 31@23C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 8.7@20-100°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 21.56 |