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C74400 Nickel Silver Wrought NICKEL SILVERS Copper-Nickel-Zinc Alloys (Nickel Silvers) true true https://api.copper.org/alloys.xhtml/C74400
Chemical Composition
Elements
Cu(1,2) Pb Zn Fe Ni(3)
(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.7% min.
(3) Ni value includes Co.
Min (%) 62.0 2.0
Max (%) 66.0 0.05 Rem 0.05 4.0
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)		 Vickers Hardness, 500 gm Section Size
(in)
* Measured at room temperature, 68°F (20°C).
Flat Products Soft Anneal O60 51 Typ
 17 Typ
 50 Max 70 Typ
 0.025
Physical Properties
Melting Point - Liquidus°F 1706
Melting Point - Solidus°F 1670
Densitylb/cu in. at 68°F 0.308
Specific Gravity 8.5
Electrical Conductivity% IACS at 68°F 26
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 67
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 11
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 15000
Modulus of Rigidityksi 5600
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Excellent
Capacity for Being Cold Worked Excellent
Common Fabrication Processes
  • Blanking
  • Roll Forming
  • Stamping
Thermal Properties

No thermal properties for this alloy

Typical uses
Product Category Product Reason Category Reason
Automotive Automotive Radiator Headers Forming Characteristics Formability
Automotive Radiator Headers Softening Resistance Anneal Resistance at Elevated Temperature
Industrial Heater Headers Forming Characteristics Formability
Heater Headers Softening Resistance Anneal Resistance at Elevated Temperature
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.