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Platinum/Iridium Alloy Spooled Wire (Pt80/Ir20)

Formula: Pt 80/Ir 20
Form: Wire
Material: Platinum/Iridium Alloy
Commodity: Precious Metals
Goodfellow's Platinum/Iridium Alloy Spooled Wire (Pt80/Ir20) is a premium wire product combining the corrosion resistance of platinum with the hardness of iridium. With a melting point over 2000°C, this alloy wire maintains excellent high-temperature strength. Applications include high-temperature thermocouples, spark plug electrodes, and crucibles for specialty chemical synthesis. Within Goodfellow's wide range of specialty metal wires, this platinum-iridium alloy stands out for its versatility in demanding electrical, chemical, and industrial applications.
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Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Wire
Diameter ±10%
Length +5% / -1%

Material Properties for Precious Metals

Mechanical Properties
Electrical Properties
Thermal Properties
Physical Properties
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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