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Paliney 2000

General Alloy Overview

ASTM

N/A

Application Examples

Hearing Aid
Industrial Sliding Contacts

Industry Examples

Wearable Electronics
Data Storage

Tempers

Annealed
Stress Relieved
Heat Treated

Available Forms

Strip
Fine Wire
Intermediate Wire

Constant (Temper - Independent) Properties

ParameterValue
Solidus, °F (°C)1618 (881)
Liquidus, °F (°C)1758 (959)
Melting Range, °F (°C)140 (78)
Density, dwt/in3 (g/cm3)108.8 (10.33)
Electrical Resistivity, Ω-cmf (µΩ-cm)80.9 (13.5)
Electrical Conductivity, %IACS12.8
Temperature Coefficent of Resistance, /°F (/K)1.2E-07 (2.1E-04)
Thermal Conductivity, Btu/hr-ft-°F (W/m-K)31 (54)
Coefficient of Thermal Expansion, /°F (/K)8.9E-06 (1.6E-05)
ParameterValue
Thermal EMF vs. Pt, µV/°F (µV/°C)6.3E-03 (1.1E-02)
Specific Heat Capacity, Btu/lb-°F (J/g-K)0.072 (0.3)
Thermal Conductivity, Btu/hr-ft-°F (W/m-K)31.3 (54.1)
Elastic Modulus, Msi (GPa)15.0 (103)
Shear Modulus, Msi (GPa)5.60 (38.0)
Poisson's Ratio0.35
Single Phase/MultiphaseMultiphase
Emissivity0.218
Contact resistance (Cres), 30 gf, mΩ7.0
Cres, oxidized 1,000h@150°C, 30 gf, mΩ92
Cres, flowers of sulfur 720h@50°C, 30gf, mΩ75

Annealed Properties

Material Tested: Fine Wire

ParameterValue
0.2% Offset Yield Strength, ksi (MPa)129 (890)
Ultimate Tensile Strength, ksi (MPa)133 (915)20
Elongation to Failure, %5
ParameterValue
Knoop Microhardness, HK50250
Vickers Microhardness, HV50230

Material Tested: Strip

ParameterValue
Ultimate Tensile Strength, ksi (MPa)114 (790)
Elongation to Failure, %15
ParameterValue
Knoop Microhardness220
Vickers Microhardness229

Stress Relieved Properties

Material Tested: Intermediate Wire

ParameterValue
0.2% Offset Yield Strength, ksi (MPa)174 (1200)
Ultimate Tensile Strength, ksi (MPa)177 (1220)
Elongation to Failure, %4
ParameterValue
Knoop Microhardness330
Vickers Microhardness325
Fatigue Performance, Cycles261360

Heat Treated Properties

Material Tested: Fine Wire

ParameterValue
0.2% Offset Yield Strength, ksi (MPa)168 (1160)
Ultimate Tensile Strength, ksi (MPa)190 (1310)
Elongation to Failure, %1
ParameterValue
Knoop Microhardness, HK50310
Vickers Microhardness, HV50290
Stress Relaxation , % stress82.8

Material Tested: Strip

ParameterValue
Ultimate Tensile Strength, ksi (MPa)183 (1260)
Elongation to Failure, %4
ParameterValue
Knoop Microhardness, HK50329
Vickers Microhardness, HV50307
Stress Relaxation , % stress<1

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