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C70350 Wrought COPPER NICKELS Copper-Nickel Alloys true true https://api.copper.org/alloys.xhtml/C70350
Chemical Composition
Elements
Cu(1) Pb Zn Fe Ni Co Mg Mn Si
(1) Cu + Sum of Named Elements 99.5% min.
Min (%) 1.0 1.0 0.50
Max (%) Rem 0.05 1.0 0.20 2.5 2.0 0.15 0.20 1.2
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)
* Measured at room temperature, 68°F (20°C).
Flat Products Mill-hardened Temper, TM - 1/2 Hard TM02 110 Typ
 100 Typ
 6 Min
Mill-hardened Temper, TM - Hard TM04 120 Typ
 110 Typ
 4 Min
Mill-hardened Temper, TM -XHM - Extra Hard TM06 130 Typ
 120 Typ
 2 Min
Sheet Mill-hardened Temper - SHMS TM10 135 Typ
 130 Typ
Mill-hardened Temper, TM - XHMS Spring TM08 145 Typ
 140 Typ
Physical Properties
Melting Point - Liquidus°F 2007
Melting Point - Solidus°F 1967
Densitylb/cu in. at 68°F 0.318
Specific Gravity 8.81
Electrical Conductivity% IACS at 68°F 50
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 115
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 9.8
Modulus of Elasticity in Tensionksi 19000
Modulus of Rigidityksi 7300
Magnetic Permeability 1.01
Poisson's Ratio 0.34
Fabrication Properties
Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Good
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good
Spot Weld Fair
Seam Weld Fair
Butt Weld Fair
Capacity for Being Cold Worked Good
Capacity for Being Hot Formed Good
Forgeability Rating 70
Machinability Rating 20
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties

No thermal properties for this alloy

Typical uses
Product Category Product Reason Category Reason
Electrical Electrical Springs
Electronic Connectors
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.