Request a Quote

80% Platinum - 20% Iridium (80Pt/20Ir)

General Alloy Overview

ASTM

ASTM B684

Application Examples

Medical Devices

Industry Examples

Medical

Tempers

Annealed, Wrought Hardened

Availible Forms

Rod, Strip

Temper Independent Properties

ParameterValueValue 2
Solidus, °F (°C)3400(1870)
Liquidus, °F (°C)3470(1910)
Melting Range, °F (°C)70(40)
Density, dwt/in³­ (g/cm³)228(21.6)
Specific Heat Capacity, Btu/lb·°F, (J/g·K)0.032(0.13)
Coefficient of Thermal Expansion, /°F (/K)4.7×10-6(8.4×10-6)
Thermal EMF vs Pt, μV/°F (μV/°C)3.9(7.1)
Emissivity0.335
ParameterValueValue 2
Thermal Conductivity, Btu/hr·ft·°F (W/m·k)13(23)
Temperature Coefficient of Resistance, /°F (/K)6.8×10-4(1.2×10-3)
Electrical Resistivity, Ω·cmf (µΩ·cm)190(32)
Electrical Conductivity, %IACS5
Elastic Modulus, Msi (GPa)35(240)
Shear Modulus, Msi (GPa)13(90)
Poissons Ratio0.36
Nobility, %100

Temper Dependent Properties

Annealed - Wire - Spool 0.002 - 0.005 in. (0.05 - 0.125 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)†(N/A)
Tensile Elongation to Failure, %†10
Vickers Microhardness, HV†(N/A)
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)†85 (590)
Knoop Microhardness, HK†190

Work Hardened - Rod 0.070 - 0.090 in. (1.7 - 2.3 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)†(N/A)
Tensile Elongation to Failure, %81
Vickers Microhardness, HV†(N/A)
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)140 (965)130 (900)
Knoop Microhardness, HK†290

Work Hardened - Strip 0.002 - 0.005 in. (0.05 - 0.125 mm) thickness

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)†(N/A)
Tensile Elongation to Failure, %41
Vickers Microhardness, HV†(N/A)
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)190 (1310)130 (900)
Knoop Microhardness, HK†290

† - Values containing † are available upon request

Contact A Specialist

Quick Contact