Find suppliers for this alloyC70265
Chemical Composition
Element
Cu(1,2)PbSnZnPNi(3)Si
(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag. (3) Ni value includes Co.
Min (%)0.051.00.20
Max (%)Rem0.050.80.300.013.00.7
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.2% Offset
Elongation
(%)
StripMill-hardened Temper, TM - 3/4 HMTM03105   Min for Standard
120   Max for Standard
95   Typ
2   Typ
Mill-hardened Temper, TM - 1/2 HardTM0290   Min for Standard
110   Max for Standard
85   Typ
4   Typ
TM0080   Min for Standard
100   Max for Standard
65   Typ
10   Min
TM0190   Min for Standard
105   Max for Standard
75   Typ
6   Typ
Mill-hardened Temper, TM - HardTM04110   Min for Standard
125   Max for Standard
100   Typ
1   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1945
Densitylb/cu in. at 68°F0.32
Specific Gravity8.85
Electrical Conductivity% IACS at 68°F40
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F90
Coefficient of Thermal Expansion 68-21210⁻⁶ per °F (68 – 212°F)9
Coefficient of Thermal Expansion 68-39210⁻⁶ per °F (68 – 392°F)9
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi19500
Magnetic Permeability1
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingExcellent
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingGood
Coated Metal Arc WeldingGood
Spot WeldExcellent
Seam WeldExcellent
Butt WeldExcellent
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedExcellent
Forgeability Rating80
Common Fabrication Processes
  • Forming and Bending
  • Stamping
Thermal Characteristics

No thermal characteristics for this alloy

Typical uses
Product Category Product Reason Category Reason
ElectricalConnectors
Leadframe Sockets
Applicable Specifications
Form Specific Sub-Form System Standard Description
Sheet & StripASTMB422/B422MCOPPER-ALUMINUM-SILICON-COBALT ALLOY AND COPPER-NICKEL-ALUMINUM-SILICON ALLOY SHEET AND STRIP
StripElectric Connector & Spring ContactASTMB888/B88MCOPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
Corrosion Properties

No information available.