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Paliney 25

General Alloy Overview

ASTM

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Application Examples

Cobra Probes, Cantilever Probes, MEMS Probes

Industry Examples

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Tempers

Annealed
HT
HTS
HTSC

Available Forms

Wire
Foil

Constant (Temper-Independent) Properties

ParameterValue
Solidus , °F (°C)1995 (1090)
Liquidus, °F (°C)2130 (1165)
Density, dwt/in3 (g/cm3)111.7 (10.6)
Electrical Conductivity, %IACS28
Electrical Resistivity, Ω-cmf (µΩ-cm)38 (6.3)
Temperature Coefficent of Resistance, /°F (/K)7.3E-04 (1.3E-03)
Thermal Conductivity, Btu/hr-ft-°F (W/m-K)67.0 (113.4794)
ParameterValue
Specific Heat Capacity, Btu/lb-°F (J/g-K)0.67 (0.280)
Elastic Modulus, Msi (GPa)19.6 (135)
Shear Modulus, Msi (GPa)7.2 (134.9)
Poisson's Ratio0.36
Single Phase/MultiphaseMultiphase
Coefficient of Thermal Expansion, /K1.5E-05

Electrical (Temper-Independent) Properties

ParameterValue
Tin Adhesion, Out of 31.7
Contact resistance (Cres), 30 gf, mΩ3.8
ParameterValue
Cres, oxidized 1,000h@150°C, 30 gf, mΩ68.5
Cres, flowers of sulfur 720h@50°C, 30gf, mΩ22.0

Temper Properties

Material Tested: Wire
Size: 0.0381-0.508in (0.96774-12.9032mm) diameter

ParameterAnnealedHeat TreatedHTSHTSC
0.2% Offset Yield Strength, ksi (MPa)90 (624.7)169 (1340)169 (1340)169 (1340)
Ultimate Tensile Strength, ksi (MPa)115 (791.0)203 (1410)203 (1410)198.7 (1370)
Elongation to Failure, %24151619
Knoop Microhardness, HK210404412390

Material Tested: Foil
Size: 0.07in (1.778mm) diameter

ParameterAnnealedHeat TreatedHTSHTSC
0.2% Offset Yield Strength, ksi (MPa)-990 (144)--
Ultimate Tensile Strength, ksi (MPa)-1030 (149.3)--
Elongation to Failure, %-8--
Vickers Microhardness, HV-390--

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