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Deriney 72

General Alloy Overview

ASTM

N/A

Application Examples

Medical Devices, Guidewire Tip Microcoil, Hermetic Feedthrough Pins

Industry Examples

Medical, Aerospace, and Defense

Tempers

Age Hardened, Annealed, Cold Worked

Availible Forms

Wire, Strip

Temper Independent Properties

ParameterValueValue 2
Solidus, °F (°C)2830(1555)
Liquidus, °F (°C)5870(1575)
Melting Range, °F (°C)40(20)
Density, dwt/in³­ (g/cm³)175(16.4)
Specific Heat Capacity, Btu/lb·°F, (J/g·K)0.05(0.20)
Coefficient of Thermal Expansion, /°F (/K)6.7×10-6(1.2×10-5)
Thermal EMF vs Pt, μV/°F (μV/°C)14.8(26.7)
Emissivity0.368
ParameterValueValue 2
Thermal Conductivity, Btu/hr·ft·°F (W/m·k)8.4(15)
Temperature Coefficient of Resistance, /°F (/K)3.3×10-4(6.0×10-4)
Electrical Resistivity, Ω·cmf (µΩ·cm)300(50)
Electrical Conductivity, %IACS3.5
Elastic Modulus, Msi (GPa)29.6(205)
Shear Modulus, Msi (GPa)10.8(74.8)
Poissons Ratio0.363
Nobility, %78.2

Temper Dependent Properties

Annealed - Wire - Spool 0.002 - 0.004 in. (0.05 - 0.10 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)165 (1140)†
Tensile Elongation to Failure, %13†
Vickers Microhardness, HV330†
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)205 (1410)†
Knoop Microhardness, HK335†

Cold Worked (CW>70% AR Temper) - Wire - Spool 0.002 - 0.004 in. (0.05 - 0.10 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)310 (2150)†
Tensile Elongation to Failure, %2†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)330 (2250)†
Knoop Microhardness, HK530†

Age Hardened (HTCW>70% AR Temper) - Wire - Cut Length 0.002 - 0.004 in. (0.05 - 0.10 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)375 (2550)†
Tensile Elongation to Failure, %2†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)375 (2550)†
Knoop Microhardness, HK625†

Cold Worked (CW<70% AR Temper) - Wire - Spool 0.004 - 0.040 in. (0.10 - 1.0 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)200 (1400)†
Tensile Elongation to Failure, %3†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)225 (1600)†
Knoop Microhardness, HK††

Cold Worked (CW>70% AR Temper) - Wire - Spool 0.004 - 0.040 in. (0.10 - 1.0 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)250 (1700)†
Tensile Elongation to Failure, %2†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)275 (1900)†
Knoop Microhardness, HK490†

Age Hardened (HTCW>70% AR Temper) - Wire - Cut Length 0.004 - 0.040 in. (0.10 - 1.0 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)250 (1700)†
Tensile Elongation to Failure, %2†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)250 (1700)†
Knoop Microhardness, HK530†

† - Values containing † are available upon request​

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