Find suppliers for this alloyC73500
Chemical Composition
Element
Cu(1,2)PbZnFeNi(3)Mn
(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag. (3) Ni value includes Co.
Min (%)70.516.5
Max (%)73.50.09Rem0.2519.50.50
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.2% Offset
Flat Products1/2 HardH0269   Typ
58   Typ
1/4 HardH0163   Typ
48   Typ
Extra HardH0684   Typ
81   Typ
HardH0478   Typ
74   Typ
Nominal Grain Size 0.015 mmOS01557   Typ
27   Typ
Nominal Grain Size 0.035 mmOS03555   Typ
26   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F2075
Melting Point - Solidus°F1995
Densitylb/cu in. at 68°F0.318
Specific Gravity8.8
Electrical Conductivity% IACS at 68°F6.5
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F21
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)8.9
Modulus of Elasticity in Tensionksi18000
Modulus of Rigidityksi6800
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingExcellent
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingFair
Coated Metal Arc WeldingNot Recommended
Spot WeldGood
Seam WeldPoor
Butt WeldGood
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedPoor
Machinability Rating20
Fabrication Process Properties

No fabrication process properties for this alloy

    
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing10001500
Typical uses
Product Category Product Reason Category Reason
ConsumerCoinageAppearanceColor
CoinageCorrosion ResistanceOxidation Resistance
Fashion jewelryAppearanceAppearance
Fashion jewelryForming CharacteristicsFormability
Fashion jewelryPlating CharacteristicsBase for Gold Plate
FlatwareAppearanceColor
FlatwareMechanical PropertiesDuctility
HollowwareMachining CharacteristicsMachinability
HollowwareMechanical PropertiesStrength
MedallionsAppearanceColor
MedallionsCorrosion ResistanceCorrosion Resistance
MedallionsForming CharacteristicsCoinability
MedallionsMechanical PropertiesHigh Strength
Optical goodsAppearanceColor
Optical goodsMechanical PropertiesStrength
ZippersCorrosion ResistanceCorrosion Resistance
ZippersFriction & Wear PropertiesWear Resistance
HardwareName platesAppearanceColor
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.