Find suppliers for this alloyC72500
Chemical Composition
Element
Cu(1,2)PbSnZnFeNi(3)Mn
(1) Cu + Sum of Named Elements 99.8% min. (2) Cu value includes Ag. (3) Ni value includes Co.
Min (%)1.88.5
Max (%)Rem0.052.80.500.610.50.20
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.2% Offset
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell B scale
Rockwell 30T scale
Section Size
(in)
Cold Work
(%)
Flat Products1/2 HardH0271   Typ
69   Typ
65   Typ
6   Typ
78   Typ
0.04
1/4 HardH0165   Typ
58   Typ
53   Typ
18   Typ
71   Typ
0.04
1/8 HardH0058   Typ
43   Typ
29   Typ
65   Typ
60   Typ
0.04
3/4 HardH0377   Typ
75   Typ
5   Typ
81   Typ
0.04
Extra HardH0687   Typ
86   Typ
81   Typ
2   Typ
88   Typ
0.04
HardH0483   Typ
81   Typ
75   Typ
3   Typ
85   Typ
0.04
Nominal Grain Size 0.015 mmOS01555   Typ
22   Typ
22   Typ
35   Typ
42   Typ
44   Typ
0.04
SpringH0891   Typ
90   Typ
83   Typ
1   Typ
90   Typ
0.04
Super SpringH14112   Typ
108   Typ
83   Typ
1   Typ
99   Typ
0.04
Wire1/2 HardH0290   Typ
0.0845
1/4 HardH0180   Typ
0.0820
Extra HardH06100   Typ
0.0875
Extra SpringH10110   Typ
0.0890
Nominal Grain Size 0.015 mmOS01560   Typ
25   Typ
0.08
Super SpringH14120   Typ
0.0899
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F2065
Melting Point - Solidus°F1940
Densitylb/cu in. at 68°F0.321
Specific Gravity8.89
Electrical Conductivity% IACS at 68°F11
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F31
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)9.2
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi20000
Modulus of Rigidityksi7500
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingExcellent
Oxyacetylene WeldingFair
Gas Shielded Arc WeldingGood
Coated Metal Arc WeldingGood
Spot WeldExcellent
Seam WeldGood
Butt WeldExcellent
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedExcellent
Machinability Rating20
Common Fabrication Processes
  • Blanking
  • Brazing
  • Coining
  • Drawing
  • Etching
  • Forming and Bending
  • Heading and Upsetting
  • Roll Threading and Knurling
  • Shearing
  • Spinning
  • Squeezing and Swaging
  • Stamping and Swaging
    
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing12001475
Hot Treatment15501750
Typical uses
Product Category Product Reason Category Reason
ElectricalConnectorsConductivity (Electrical)Electrical Conductivity
ConnectorsConductivity (Thermal)Thermal Conductivity
ConnectorsCorrosion ResistanceCorrosion Resistance
ConnectorsCorrosion ResistanceCorrosion Resistance to Fresh Water
ConnectorsCorrosion ResistanceCorrosion Resistance to Salt Water
ConnectorsCorrosion ResistanceResistant to Oxidation
ConnectorsForming CharacteristicsFormability
ConnectorsMechanical PropertiesHigh Modulus of Elasticity
ConnectorsMechanical PropertiesHigh Strength
Control and Sensing BellowsConductivity (Electrical)Electrical Conductivity
Control and Sensing BellowsConductivity (Thermal)Thermal Conductivity
Control and Sensing BellowsCorrosion ResistanceCorrosion Resistance
Control and Sensing BellowsCorrosion ResistanceResistant to Oxidation
Control and Sensing BellowsMechanical PropertiesHigh Modulus of Elasticity
Control and Sensing BellowsMechanical PropertiesHigh Strength
Electronic ContactsConductivity (Electrical)Electrical Conductivity
Electronic ContactsCorrosion ResistanceCorrosion Resistance
Electronic ContactsMechanical PropertiesModerate to High Strength
Electronic ContactsSolderabilitySolderability
Lead FramesConductivity (Electrical)Electrical Conductivity
Lead FramesConductivity (Thermal)Thermal Conductivity
Lead FramesCorrosion ResistanceCorrosion Resistance
Lead FramesCorrosion ResistanceResistant to Oxidation
Lead FramesMechanical PropertiesHigh Strength
Lead FramesSolderabilitySolderability
RelaysConductivity (Electrical)Electrical Conductivity
RelaysConductivity (Thermal)Thermal Conductivity
RelaysCorrosion ResistanceCorrosion Resistance
RelaysCorrosion ResistanceResistant to Oxidation
RelaysMechanical PropertiesHigh Strength
Switch SpringsConductivity (Electrical)Electrical Conductivity
Switch SpringsConductivity (Thermal)Thermal Conductivity
Switch SpringsCorrosion ResistanceCorrosion Resistance
Switch SpringsCorrosion ResistanceResistant to Oxidation
Switch SpringsForming CharacteristicsFormability
Switch SpringsMechanical PropertiesHigh Modulus of Elasticity
Switch SpringsMechanical PropertiesHigh Strength
Telecommunications ConnectorsConductivity (Electrical)Electrical Conductivity
Telecommunications ConnectorsCorrosion ResistanceOxidation Resistance
Telecommunications ConnectorsForming CharacteristicsFormability
Telecommunications ConnectorsMechanical PropertiesModerate to High Strength
Telecommunications ConnectorsSolderabilitySolderability
IndustrialBrazing AlloyBrazing CharacteristicsBrazability
Applicable Specifications
Form System Standard Description
BarASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
PlateASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
SheetASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
StripASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
Corrosion Properties

No information available.