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C69350 Wrought BRONZES Other Copper-Zinc Alloys true false https://api.copper.org/alloys.xhtml/C69350
Chemical Composition
Elements
Cu(1,2) Pb Sn Zn Fe P Ni(3) Al Mn Si
(1) Cu + Sum of Named Elements 99.5% min.
(2) Cu value includes Ag.
(3) Ni value includes Co.
Min (%) 73.0 .10 .04 3.0
Max (%) 77.0 .20 .20 Rem .50 .10 .10 .10 .10 3.4
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 Elongation
(%)		 Brinell Hardness, 3000 kg load
* Measured at room temperature, 68°F (20°C).
Castings As Hot Extruded M30 66.7 Min
71.1 Typ
78.3 Max
 15 Min
25 Max		 120 Typ
As Hot Forged - Air Cooled M10 66.7 Min
71.1 Typ
78.3 Max
 15 Min
25 Max		 120 Typ
Physical Properties
Melting Point - Solidus°F 1546
Densitylb/cu in. at 68°F 0.297
Specific Gravity 0.297
Electrical Conductivity% IACS at 68°F 6.5
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 20.13
Coefficient of Thermal Expansion 68-21210 to -6 power per °F (68 – 212°F) 10.54
Coefficient of Thermal Expansion 68-39210 to -6 power per °F (68 – 392°F) 10.83
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 11.5
Specific Heat CapacityBtu/ lb /°F at 68°F 0.095
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 75
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties

No thermal properties for this alloy

Typical uses
Product Category Product Reason Category Reason
Marine Marine Components
Plumbing Potable water system components
Valve Bodies, Faucets and Plumbing Componsnts
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.