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Neyoro 28A

General Alloy Overview

ASTM

B477

Application Examples

Sliding Electrical Contacts, Slip Ring Brushes

Industry Examples

Industrial, Automotive, Aerospace, and Defense

Tempers

Cold Worked

Availible Forms

Wire, Strip

Temper Independent Properties

ParameterValueValue 2
Solidus, °F (°C)1700(925)
Liquidus, °F (°C)†
Melting Range, °F (°C)†
Density, dwt/in³­ (g/cm³)167(15.8)
Specific Heat Capacity, Btu/lb·°F, (J/g·K)0.045(0.19)
Coefficient of Thermal Expansion, /°F (/K)8.2×10-6(1.5×10-5)
Thermal EMF vs Pt, μV/°F (μV/°C)†
Emissivity†
ParameterValueValue 2
Thermal Conductivity, Btu/hr·ft·°F (W/m·k)33(58)
Temperature Coefficient of Resistance, /°F (/K)†
Electrical Resistivity, Ω·cmf (µΩ·cm)75(12)
Electrical Conductivity, %IACS14
Elastic Modulus, Msi (GPa)12(83)
Shear Modulus, Msi (GPa)†
Poissons Ratio†
Nobility, %75

Temper Dependent Properties

Stress Relieved - Wire - Spool 0.004 - 0.060 in. (0.1 - 1.5 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)††
Tensile Elongation to Failure, %158
Vickers Microhardness, HV130110
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)60 (415)50 (345)
Knoop Microhardness, HK135120

Cold Worked - Wire - Spool 0.004 - 0.060 in. (0.1 - 1.5 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)††
Tensile Elongation to Failure, %61
Vickers Microhardness, HV165140
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)80 (550)65 (450)
Knoop Microhardness, HK165150

Max Cold Worked (MCW Temper) - Wire - Spool 0.004 - 0.060 in. (0.1 - 1.5 mm) diameter

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)††
Tensile Elongation to Failure, %11
Vickers Microhardness, HV170165
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)95 (655)85 (585)
Knoop Microhardness, HK180175

Cold Worked (SR Temper) - Strip 0.003 - 0.030 in. (0.075 - 0.75 mm) thickness

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)††
Tensile Elongation to Failure, %158
Vickers Microhardness, HV130110
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)55 (380)50 (345)
Knoop Microhardness, HK135120

Cold Worked (CW Temper) - Strip 0.003 - 0.030 in. (0.075 - 0.75 mm) thickness

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)††
Tensile Elongation to Failure, %41
Vickers Microhardness, HV165140
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)80 (550)65 (450)
Knoop Microhardness, HK165150

Max Cold Worked (MCW Temper) - Strip 0.003 - 0.030 in. (0.075 - 0.75 mm) thickness

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)††
Tensile Elongation to Failure, %11
Vickers Microhardness, HV170165
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)90 (620)85 (585)
Knoop Microhardness, HK180175

† - Values containing † are available upon request

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