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

Platinum/Iridium Alloy Rod (Pt80/Ir20)

Platinum Iridium Alloy Rod (Pt80/Ir20) delivers superior corrosion resistance, wear resistance, and high-temperature stability in a rigid cylindrical format that ensures exceptional structural strength and dimensional precision under sustained load. The Pt-Ir composition resists chemical attack, oxidation, and deformation even in aggressive industrial atmospheres, making it ideal for aerospace actuator shafts, precision spindle components, and alignment pins in metrology systems where accuracy is critical. Its rigidity under torsional and compressive stress supports applications in medical instrument frames, electrical contact posts, and vacuum chamber fixtures. Research applications include long-term electrochemical stability testing, mechanical fatigue evaluation in noble metal alloys, and the fabrication of durable high-performance electrode supports. The rod’s combination of mechanical resilience, controlled dimensional tolerances, and resistance to extreme chemical and thermal stress ensures dependable, repeatable performance across both high-specification industrial operations and advanced scientific programs.
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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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