Find suppliers for this alloyC64725
Chemical Composition
Element
Cu(1,2)PbSnZnFeNi(3)CaCrMgSi
(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag. (3) Ni value includes Co.
Min (%)95.00.200.501.30.20
Max (%)0.010.81.50.252.70.010.090.200.8
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.2% Offset
Elongation
(%)
Vickers Hardness, 500 gm
Flat Products1/2 Hard and Stress RelievedHR0272   Typ
66   Typ
8   Min
155   Typ
Extra Spring and Stress RelievedHR10102   Min
94   Min
200   Min
Hard and Stress RelievedHR0480   Typ
74   Typ
6   Min
170   Typ
Precipitation or Spinodal Heat-treated, 1/2 Hard and Thermal Stress RelievedTR0286   Typ
81   Typ
8   Min
183   Typ
Precipitation or Spinodal Heat-treated, Extra Hard and Thermal Stress RelievedTR0686   Typ
81   Typ
4   Min
183   Typ
Spring and Stress RelievedHR0895   Typ
89   Typ
5   Min
198   Typ
HR0895   Typ
89   Typ
2   Min
198   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
(1) HR Temper, 0.37, .0215 TR Temper
Melting Point - Liquidus°F1985
Melting Point - Solidus°F1920
Densitylb/cu in. at 68°F0.32
Specific Gravity8.87
Electrical Conductivity% IACS at 68°F48(1)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F110
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)9.5
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi18900
Fabrication Properties
Technique Suitability
SolderingGood
BrazingFair
Oxyacetylene WeldingFair
Gas Shielded Arc WeldingGood
Coated Metal Arc WeldingFair
Spot WeldGood
Seam WeldGood
Butt WeldFair
Capacity for Being Cold WorkedGood
Capacity for Being Hot FormedGood
Forgeability Rating70
Machinability Rating20
Fabrication Process Properties

No fabrication process properties for this alloy

    
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing6601200
Hot Treatment15571755
Typical uses
Product Category Product Reason Category Reason
ElectricalCircuit BreakersConductivity (Electrical)Electrical Conductivity
Circuit BreakersFriction & Wear PropertiesWear Resistance
Circuit BreakersMechanical PropertiesStrength
Connectors, Electrical, Lead-FreeConductivity (Electrical)Electrical Conductivity
Connectors, Electrical, Lead-FreeConductivity (Thermal)Thermal Conductivity
Connectors, Electrical, Lead-FreeCorrosion ResistanceCorrosion Resistance
Connectors, Electrical, Lead-FreeCorrosion ResistanceStress corrosion resistance, high
Connectors, Electrical, Lead-FreeForming CharacteristicsFormability
Connectors, Electrical, Lead-FreePlating CharacteristicsPlatability
Fuse ClipsConductivity (Electrical)Electrical Conductivity
Fuse ClipsForming CharacteristicsFormability
Lead FramesConductivity (Electrical)Electrical Conductivity
Springs, contactConductivity (Electrical)Electrical Conductivity
Springs, contactConductivity (Thermal)Thermal Conductivity
Springs, contactForming CharacteristicsFormability
Springs, contactMechanical PropertiesFatigue Strength, High
Springs, contactMechanical PropertiesStrength, High
Springs, contactMechanical PropertiesThermal Softening Resistance
Terminals, electricalConductivity (Thermal)Thermal Conductivity
Terminals, electricalCorrosion ResistanceCorrosion Resistance
Terminals, electricalMechanical PropertiesDuctility
Applicable Specifications
Form Specific Sub-Form System Standard Description
Sheet & StripASTMB422/B422MCOPPER-ALUMINUM-SILICON-COBALT ALLOY AND COPPER-NICKEL-ALUMINUM-SILICON ALLOY SHEET AND STRIP
StripElectric Connector & Spring ContactASTMB888/B88MCOPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
Corrosion Properties

No information available.