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Chemical Composition
Elements
Cu(1,2) Pb Sn Zn Fe P Ni(3) Ca Mn Si
(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.5% min.
(3) Ni value includes Co.
Min (%) 70.0 .10 3.0
Max (%) 73.0 .08 .20 Rem .10 .20 .10 .15 .8 3.6
Mechanical Properties

No mechanical properties for this alloy

Physical Properties
Melting Point - Liquidus°F 1609
Melting Point - Solidus°F 1569
Densitylb/cu in. at 68°F 0.299
Specific Gravity 8.29
Electrical Conductivity% IACS at 68°F 7.9
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 21.4
Coefficient of Thermal Expansion 68-21210 to -6 power per °F (68 – 212°F) 10.36
Coefficient of Thermal Expansion 68-39210 to -6 power per °F (68 – 392°F) 10.36
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 10.46
Specific Heat CapacityBtu/ lb /°F at 68°F 0.091
Modulus of Elasticity in Tensionksi 15300
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Good
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent
Forgeability Rating 95
Machinability Rating 80
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum*
* Temperature is measured in Fahrenheit.
Annealing 1040
Typical Uses

No information for this alloy

Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.