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Formula: Pt 80/Ir 20
Form: Rod
Material: Platinum/Iridium Alloy
Commodity: Precious Metals
Temper:
As Drawn
Goodfellow offers a Pt80/Ir20 rod to meet your challenging alloy needs. This platinum/iridium alloy combines platinum’s excellent corrosion resistance and high-temperature strength with iridium’s hardness and wear resistance. With outstanding high-temperature properties, the Pt80/Ir20 rod resists oxidation and maintains strength at over 1600°C. This versatile product finds use in applications like high-temperature thermocouples, electrical contacts, crucibles, and welding electrodes. As part of Goodfellow’s extensive range of rod and wire products, the Pt80/Ir20 rod provides the advanced material properties you require.
Tolerances
Rod
| Diameter | =<10mm | ±10% |
|---|---|---|
| Diameter | >10mm | ±5% |
Material Properties for Precious Metals
Mechanical Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | <20 |
| Modulus of elasticity( GPa ) | 198 |
| Hardness - Vickers( kgf mm⁻² ) | 190-200 |
| Tensile strength( MPa ) | 680-700 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 31-32 |
| Temperature coefficient( K⁻¹ ) | 0.001 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1830-2123 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 8.3@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 21.7 |
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