Find suppliers for this alloyC18025
Chemical Composition
Element
Cu(1,2)SnZnCrMgSi
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.9% min.
Min (%)0.150.050.200.010.03
Max (%)Rem0.250.150.300.030.07
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
Flat ProductsHardH0465   Min
79   Typ
93   Max
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1976
Melting Point - Solidus°F1970
Densitylb/cu in. at 68°F0.322
Specific Gravity8.9
Electrical Conductivity% IACS at 68°F78
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F180
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)9.81
Modulus of Elasticity in Tensionksi18400
Modulus of Rigidityksi6090
Magnetic Permeability1.58
Poisson's Ratio0.33
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingNot Recommended
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldNot Recommended
Capacity for Being Cold WorkedGood
Capacity for Being Hot FormedGood
Forgeability Rating65
Machinability Rating20
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
ElectricalLead Frames,Connector Components
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No information available.