Find suppliers for this alloyC69750
C69750WroughtBRONZESOther Copper-Zinc AlloysTrueFalsehttps://api.copper.org/CDA-API/alloys.xhtml/C69750
Chemical Composition
Element
Cu(1,2)PbSnZnFePNi(3)MnSi
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Ni value includes Co.
Min (%)78.00.81.9
Max (%)83.01.30.05Rem0.050.020.010.052.22
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)		YS-0.2% Offset
Elongation
(%)		Vickers Hardness, 3000 gm
Section Size
(in)
RodSoft AnnealO6065   Min
68   Typ
22   Min
36   Typ
50   Typ
105   Min
>.020
SpringH08102   Min
109   Typ
87   Min
94   Typ
8   Typ
200   Min
>.475
H08131   Min
138   Typ
116   Min
119   Typ
1   Typ
260   Min
<.315
H08109   Min
116   Typ
94   Min
102   Typ
5   Typ
220   Min
<.475
WireSoft AnnealO6065   Min
68   Typ
22   Min
36   Typ
50   Typ
105   Min
>.020
SpringH08102   Min
109   Typ
87   Min
94   Typ
8   Typ
200   Min
>.475
H08131   Min
138   Typ
116   Min
119   Typ
1   Typ
260   Min
<.315
H08109   Min
116   Typ
94   Min
102   Typ
5   Typ
220   Min
<.475
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1724
Melting Point - Solidus°F1562
Densitylb/cu in. at 68°F0.311
Specific Gravity8.6
Electrical Conductivity% IACS at 68°F9.5
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F23
Coefficient of Thermal Expansion 68-21210⁻⁶ per °F (68 – 212°F)11.1
Specific Heat CapacityBtu/ lb /°F at 68°F0.091
Modulus of Elasticity in Tensionksi15200
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingFair
Oxyacetylene WeldingFair
Gas Shielded Arc WeldingFair
Coated Metal Arc WeldingFair
Spot WeldGood
Seam WeldExcellent
Butt WeldExcellent
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedExcellent
Forgeability Rating30
Machinability Rating90
Common Fabrication Processes
  • Machining
    
Thermal Properties
Treatment Minimum* Value*
* Temperature is measured in Fahrenheit.
Stress Relief590
Annealing1020
Typical uses
Product Category Product Reason Category Reason
ElectricalElectrical ConnectorsConductivity (Electrical)Electrical Conductivity
Electrical ConnectorsForming CharacteristicsFormability
Electrical PinionsConductivity (Electrical)Electrical Conductivity
Electrical PinionsForming CharacteristicsFormability
Electronic ContactsConductivity (Electrical)Electrical Conductivity
Electronic ContactsForming CharacteristicsFormability
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No information available.