General Alloy Overview

ASTM

B684

Application Examples

Bioelectrodes, Embolic coil, Machined medical connectors, Low energy contacts

Industry Examples

Medical, Industrial

Tempers

Annealed, Stress Relieved

Availible Forms

Rod, Wire, Fine Wire, Strip

Constant (Temper - Independent) Properties

ParameterValue
Solidus, °F (°C)2883.2 (1584)
Liquidus, °F (°C)3057.8 (1681)
Melting Range, °F (°C)206.6 (97)
Density dwt/in3 (g/cm3)136.6 (13)
Electrical Resistivity, µΩ-cmf (µΩ-cm)230 (38.3)
Electrical Conductivity, %IACS4.5
Temperature Coefficent of Resistance, /°F (/K)0.00034 (0.00062)
Thermal Conductivity, Btu/hr-ft-°F (W/m-K)11 (19)
Coefficient of Thermal Expansion, /°F (/K)6.2 (11.6)
ParameterValue
Thermal EMF vs. Pt, µV/°F (µV/°C)6.3 (11.3)
Specific Heat Capacity, Btu/lb-°F (J/g-K)0.055 (0.23)
Elastic Modulus, Msi (GPa)22.8 (157.3)
Shear Modulus8.3 (57.5)
Poisson's Ratio0.368
Single phase/multiphaseSingle Phase
Lattice parameter3.82
Emissivity0.303

Biocompatibility and Medical Imaging Properties

ParameterValue
X-ray radiopacity, % of Pt-10wt.% Ir100%

Annealed Properties

ParameterValue
0.2% Offset Yield Strength, ksi (MPa)82.825 (571)
Ultimate Tensile Strength, ksi (MPa)85.6 (590)
Elongation to Failure, %11
ParameterValue
Knoop Microhardness, HK100218.6
Vickers Microhardness, HV100202.4

Stress Relieved Properties

ParameterValue
0.2% Offset Yield Strength, ksi (MPa)77.3 (533)
Ultimate Tensile Strength, ksi (MPa)85.9 (592)
ParameterValue
Elongation to Failure, %6.9

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