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Formula: Pt 80/Ir 20
Form: Rod
Material: Platinum/Iridium Alloy
Commodity: Precious Metals
Temper: As Drawn

Platinum/Iridium Alloy Rod (Pt80/Ir20)

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.
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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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