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C52480 Wrought BRONZES Copper-Tin-Phosporus Alloys (Phosphor Bronzes) true true https://api.copper.org/alloys.xhtml/C52480
Chemical Composition
Elements
Cu(1) Pb Sn Zn Fe P Ni
(1) Cu + Sum of Named Elements 99.5% min.
Min (%) 9.0 0.05 0.01 0.05
Max (%) Rem 0.05 11.0 0.30 0.20 0.35 0.20
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 110 Typ
 103 Typ
 20 Typ
1/4 Hard H01 92 Typ
 70 Typ
 30 Typ
Extra Hard H06 130 Typ
 125 Typ
 6 Typ
Extra Spring H10 146 Typ
 142 Typ
 2 Typ
Hard H04 123 Typ
 119 Typ
 10 Typ
Nominal Grain Size 0.015 mm OS015 75 Typ
 38 Typ
 55 Typ
Spring H08 140 Typ
 137 Typ
 2 Typ
Physical Properties
Melting Point - Liquidus°F 1830
Melting Point - Solidus°F 1550
Densitylb/cu in. at 68°F 0.317
Specific Gravity 8.78
Electrical Conductivity% IACS at 68°F 11
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 29
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 10.2
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 16000
Modulus of Rigidityksi 6000
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Fair
Spot Weld Good
Seam Weld Fair
Butt Weld Excellent
Capacity for Being Cold Worked Good
Machinability Rating 20
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 700 1250
Typical Uses

No information for this alloy

Applicable Specifications
Form Specific Sub-Form Application System Standard Description
Strip ASTM B888/B88M COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
Corrosion Properties

No Corrosion Properties Available.