Find suppliers for this alloyC72900
Chemical Composition
(1) Cu + Sum of Named Elements 99.7% min. (2) Cu value includes Ag. (3) 0.005% Pb max. for hot rolling. (4) Ni value includes Co.
Min (%)7.514.5
Max (%)Rem0.028.50.500.5015.50.150.300.10
Mechanical Properties*
Temper Code
Tensile Strength
YS-0.2% Offset
YS-0.5% Ext
YS-0.05% Offset
Strip1/2 Hard and Spinodal Hardened (1/2 TS)TS02145   Min for Standard
125   Min for Standard
3   Typ
1/4 Hard and Spinodal Hardened (1/4 TS)TS01130   Min for Standard
105   Min for Standard
4   Typ
3/4 Hard and Spinodal Hardened (3/4 TS)TS03155   Min for Standard
135   Min for Standard
2   Typ
Hard and Spinodal Hardened TS04165   Min for Standard
145   Min for Standard
2   Typ
Mill-hardened Temper, TM - 1/2 HardTM02105   Min for Standard
90   Min for Standard
80   Min for Standard
15   Typ
TM0095   Min for Standard
75   Min for Standard
70   Min for Standard
22   Typ
Mill-hardened Temper, TM - HardTM04115   Min for Standard
105   Min for Standard
95   Min for Standard
10   Typ
Mill-hardened Temper, TM - XHMS SpringTM08150   Min for Standard
140   Min for Standard
125   Min for Standard
2   Typ
Mill-hardened Temper, TM -XHM - Extra HardTM06130   Min for Standard
120   Min for Standard
105   Min for Standard
6   Typ
Solution Heat TreatedTB0064   Min for Standard
24   Min for Standard
32   Typ
Solution Heat Treated and Cold Worked: 1/2 HardTD0285   Min for Standard
65   Min for Standard
8   Typ
Solution Heat Treated and Cold Worked: 1/4 HardTD0175   Min for Standard
50   Min for Standard
18   Typ
Solution Heat Treated and Cold Worked: 3/4 HardTD0395   Min for Standard
80   Min for Standard
3   Typ
Solution Heat Treated and Cold Worked: HardTD04100   Min for Standard
85   Min for Standard
Spinodal Hardened-Low Strength (ATLS) TX00120   Min for Standard
95   Min for Standard
6   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
(1) Aged condition.
Melting Point - Liquidus°F2039
Melting Point - Solidus°F1742
Densitylb/cu in. at 68°F0.323
Specific Gravity8.94
Electrical Conductivity% IACS at 68°F7.8(1)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F17
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)9.1
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi18500
Modulus of Rigidityksi7500
Fabrication Properties
Technique Suitability
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingExcellent
Coated Metal Arc WeldingExcellent
Spot WeldExcellent
Seam WeldExcellent
Butt WeldExcellent
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedGood
Fabrication Process Properties

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Hot Treatment12001600
Typical uses
Product Category Product Reason Category Reason
ElectricalConnectorsConductivity (Electrical)Electrical Conductivity
ConnectorsConductivity (Thermal)Thermal Conductivity
ConnectorsCorrosion ResistanceCorrosion Resistance
ConnectorsCorrosion ResistanceResistant to Oxidation
ConnectorsForming CharacteristicsFormability
ConnectorsMechanical PropertiesHigh Modulus of Elasticity
ConnectorsMechanical PropertiesVery High Strength
ConnectorsThermal PropertiesResistance to Stress Relaxation
ContactsConductivity (Electrical)Electrical Conductivity
ContactsConductivity (Thermal)Thermal Conductivity
ContactsCorrosion ResistanceCorrosion Resistance
ContactsCorrosion ResistanceCorrosion Resistance to Fresh Water
ContactsCorrosion ResistanceCorrosion Resistance to Salt Water
ContactsCorrosion ResistanceResistant to Oxidation
ContactsForming CharacteristicsFormability
ContactsMechanical PropertiesHigh Modulus of Elasticity
ContactsMechanical PropertiesVery High Strength
ContactsThermal PropertiesResistance to Stress Relaxation
ControlsConductivity (Electrical)Electrical Conductivity
ControlsConductivity (Thermal)Thermal Conductivity
ControlsCorrosion ResistanceCorrosion Resistance
ControlsCorrosion ResistanceCorrosion Resistance to Salt Water
ControlsMechanical PropertiesHigh Strength
Miniaturized SocketsCorrosion ResistanceCorrosion Resistance
Miniaturized SocketsForming CharacteristicsFormability
Miniaturized SocketsMechanical PropertiesHigh Modulus of Elasticity
Miniaturized SocketsMechanical PropertiesVery High Strength
Relay ElementsConductivity (Electrical)Electrical Conductivity
Relay ElementsConductivity (Thermal)Thermal Conductivity
Relay ElementsCorrosion ResistanceCorrosion Resistance
Relay ElementsCorrosion ResistanceResistant to Oxidation
Relay ElementsForming CharacteristicsFormability
Relay ElementsMechanical PropertiesHigh Modulus of Elasticity
Relay ElementsMechanical PropertiesVery High Strength
Relay ElementsThermal PropertiesResistance to Stress Relaxation
SwitchesConductivity (Electrical)Electrical Conductivity
SwitchesConductivity (Thermal)Thermal Conductivity
SwitchesCorrosion ResistanceCorrosion Resistance
SwitchesCorrosion ResistanceCorrosion Resistance to Salt Water
SwitchesMechanical PropertiesHigh Strength
IndustrialSpringsCorrosion ResistanceCorrosion Resistance
SpringsCorrosion ResistanceResistant to Oxidation
SpringsForming CharacteristicsFormability
SpringsMechanical PropertiesHigh Modulus of Elasticity
SpringsMechanical PropertiesVery High Strength
SpringsThermal PropertiesResistance to Stress Relaxation
WireCorrosion ResistanceCorrosion Resistance
WireCorrosion ResistanceResistant to Oxidation
WireForming CharacteristicsFormability
WireMechanical PropertiesHigh Modulus of Elasticity
WireMechanical PropertiesVery High Strength
MarineMarine ComponentsCorrosion ResistanceCorrosion Resistance
Marine ComponentsCorrosion ResistanceCorrosion Resistance to Fresh Water
Marine ComponentsCorrosion ResistanceCorrosion Resistance to Salt Water
Marine ComponentsCorrosion ResistanceResistant to Oxidation
Marine ComponentsForming CharacteristicsFormability
Marine ComponentsMechanical PropertiesHigh Modulus of Elasticity
Marine ComponentsMechanical PropertiesVery High Strength
Marine ComponentsThermal PropertiesResistance to Stress Relaxation
Applicable Specifications
Form System Standard Description
Corrosion Properties

No information available.