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C64760 Wrought BRONZES Copper-Silicon Alloys (Silicon Bronzes and Silicon Brasses) true true https://api.copper.org/alloys.xhtml/C64760
Chemical Composition
Elements
Cu(1,2) Pb Sn Zn Ni(3) Mg Si
(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.5% min.
(3) Ni value includes Co.
Min (%) 93.5 0.20 0.40 0.05
Max (%) 0.02 0.30 2.5 2.5 0.05 0.6
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)		 Vickers Hardness, 500 gm Fatigue Strength**
(ksi)		 Proportional Limit
(ksi)		 Section Size
(in)
* Measured at room temperature, 68°F (20°C). ** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106.
Flat Products 1/2 Hard H02 83 Typ
 75 Typ
 10 Typ
 178 Typ
 58 Typ
Extra Hard H06 104 Typ
 94 Typ
 7 Typ
 215 Typ
 78 Typ
Hard H04 97 Typ
 87 Typ
 10 Typ
 202 Typ
 36 Typ 59 Typ 0.009
Physical Properties
Melting Point - Liquidus°F 1989
Melting Point - Solidus°F 1954
Densitylb/cu in. at 68°F 0.321
Specific Gravity 8.9
Electrical Conductivity% IACS at 68°F 47
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 113.9
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 12700
Modulus of Rigidityksi 4800
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Good
Gas Shielded Arc Welding Good
Spot Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Excellent
Machinability Rating 20
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 842
Hot Working Temperature 1472 1742
Stress Relief 482
Typical Uses

No information for this alloy

Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.