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C72900

General Alloy Overview

ASTM

ASTM B740

Application Examples

Electrical Contacts, when joined to Paliney or Neyoro alloy

Industry Examples

Industrial, Automotive, Aerospace, and Defense

Tempers

Age Hardened

Availible Forms

Strip

Temper Independent Properties

ParameterValueValue 2
Solidus, °F (°C)1650(900)
Liquidus, °F (°C)2050(1125)
Melting Range, °F (°C)400(225)
Density, dwt/in³­ (g/cm³)93(8.8)
Specific Heat Capacity, Btu/lb·°F, (J/g·K)0.091(0.381)
Coefficient of Thermal Expansion, /°F (/K)†
Thermal EMF vs Pt, μV/°F (μV/°C)†
Emissivity†
ParameterValueValue 2
Thermal Conductivity, Btu/hr·ft·°F (W/m·k)†
Temperature Coefficient of Resistance, /°F (/K)†
Electrical Resistivity, Ω·cmf (µΩ·cm)†
Electrical Conductivity, %IACS†
Elastic Modulus, Msi (GPa)†
Shear Modulus, Msi (GPa)†
Poissons Ratio†
Nobility, %0.5

Temper Dependent Properties

Batch Age Hardened (BHT Temper) - Strip -
Fabricated Bimetallic Parts 0.002 - 0.015 in. (0.05 - 0.38 mm) thickness

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)130 (895)†
Tensile Elongation to Failure, %3†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)150 (1035)†
Knoop Microhardness, HK††

Continuous Age Hardened (CHT Temper) - Strip -
Fabricated Bimetallic Parts 0.002 - 0.015 in. (0.05 - 0.38 mm) thickness

ParameterNominalMin
NominalMin
0.2% Offset Yield Strength, ksi (MPa)80 (550)†
Tensile Elongation to Failure, %8†
Vickers Microhardness, HV††
ParameterNominalMin
NominalMin
Ultimate Tensile Strength, ksi (MPa)110 (760)†
Knoop Microhardness, HK††

† - Values containing † are available upon request

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