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Chemical Composition
Elements
Cu(1,2) Pb Zn Fe Ni(3) Mn
(1) Cu + Sum of Named Elements 99.5% min.
(2) Cu value includes Ag.
(3) Ni value includes Co.
Min (%) 57.0 11.0
Max (%) 61.0 0.09 Rem 0.25 13.5 0.50
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)
YS-0.2% Offset
(ksi)
Elongation
(%)
* Measured at room temperature, 68°F (20°C).
Flat Products 1/2 Hard H02 83 Typ
70 Typ
17 Typ
Extra Hard H06 108 Typ
102 Typ
2 Typ
Extra Spring H10 119 Typ
116 Typ
1 Typ
Hard H04 98 Typ
90 Typ
2 Typ
Nominal Grain Size 0.015 mm OS015 62 Typ
35 Typ
40 Typ
Nominal Grain Size 0.035 mm OS035 57 Typ
32 Typ
41 Typ
Nominal Grain Size 0.050 mm OS050 55 Typ
30 Typ
42 Typ
Spring H08 115 Typ
111 Typ
1 Typ
Physical Properties
Melting Point - Liquidus°F 1880
Melting Point - Solidus°F 1800
Densitylb/cu in. at 68°F 0.31
Specific Gravity 8.58
Electrical Conductivity% IACS at 68°F 9
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 26
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 9
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 18000
Modulus of Rigidityksi 6800
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Not Recommended
Spot Weld Good
Seam Weld Fair
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Poor
Machinability Rating 20
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 1000 1350
Typical uses
Product Category Product Reason Category Reason
Electrical Rheostats Corrosion Resistance Corrosion Resistance
Rheostats Corrosion Resistance Oxidation Resistance
Rheostats Forming Characteristics Formability
Rheostats Mechanical Properties Moderate Strength
Springs for Relays Conductivity (Electrical) Electrical Conductivity
Springs for Relays Conductivity (Thermal) Thermal Conductivity
Springs for Relays Corrosion Resistance Corrosion Resistance
Springs for Relays Corrosion Resistance Oxidation Resistance
Springs for Relays Forming Characteristics Formability
Springs for Relays Mechanical Properties Moderate Strength
Industrial Condensers Corrosion Resistance Corrosion Resistance
Condensers Corrosion Resistance Oxidation Resistance
Condensers Forming Characteristics Formability
Condensers Mechanical Properties Moderate Strength
Applicable Specifications
Form Specific Sub-Form Application System Standard Description
Bar ASTM B122/B122M COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
Plate ASTM B122/B122M COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
Sheet ASTM B122/B122M COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
Strip ASTM B888/B88M COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
ASTM B122/B122M COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
Corrosion Properties

No Corrosion Properties Available.