Find suppliers for this alloyC19040
Chemical Composition
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.8% min. (3) Ni value includes Co.
Min (%)
Max (%)
Mechanical Properties*
Temper Code
Tensile Strength
YS-0.2% Offset
Flat ProductsExtra HardH0678   Min
84   Typ
91   Max
73   Min
81   Typ
87   Max
3   Typ
HardH0473   Min
78   Typ
86   Max
70   Min
75   Typ
84   Max
5   Typ
SpringH0884   Min
90   Typ
97   Max
80   Min
87   Typ
94   Max
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1981
Melting Point - Solidus°F1882
Densitylb/cu in. at 68°F0.321
Electrical Conductivity% IACS at 68°F30
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F81
Coefficient of Thermal Expansion 68-21210⁻⁶ per °F (68 – 212°F)9.5
Modulus of Elasticity in Tensionksi18130
Fabrication Properties
Technique Suitability
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldExcellent
Seam WeldExcellent
Butt WeldExcellent
Capacity for Being Cold WorkedGood
Capacity for Being Hot FormedFair
Fabrication Process Properties

No fabrication process properties for this alloy

Thermal Characteristics

No thermal characteristics for this alloy

Typical uses
Product Category Product Reason Category Reason
AutomotiveAutomotive electrical terminals
ElectricalElectrical and electronic terminals, connectors, Lead frames
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No information available.