Find suppliers for this alloyC74400
Chemical Composition
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.7% min. (3) Ni value includes Co.
Min (%)62.02.0
Max (%)66.00.05Rem0.054.0
Mechanical Properties*
Temper Code
Tensile Strength
YS-0.2% Offset
Vickers Hardness, 500 gm
Section Size
Flat ProductsSoft AnnealO6051   Typ
17   Typ
50   Max
70   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1706
Melting Point - Solidus°F1670
Densitylb/cu in. at 68°F0.308
Specific Gravity8.5
Electrical Conductivity% IACS at 68°F26
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F67
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)11
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi15000
Modulus of Rigidityksi5600
Fabrication Properties
Technique Suitability
Capacity for Being Cold WorkedExcellent
Common Fabrication Processes
  • Blanking
  • Roll Forming
  • Stamping
Thermal Characteristics

No thermal characteristics for this alloy

Typical uses
Product Category Product Reason Category Reason
AutomotiveAutomotive Radiator HeadersForming CharacteristicsFormability
Automotive Radiator HeadersSoftening ResistanceAnneal Resistance at Elevated Temperature
IndustrialHeater HeadersForming CharacteristicsFormability
Heater HeadersSoftening ResistanceAnneal Resistance at Elevated Temperature
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No information available.