C96400

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Product Description: Copper-Nickel
Solids: 1/2" to 9" O.D.
Tubes: 1 1/8" to 9" O.D.
Rectangles: Up to 15"
Standard Lengths: 144"
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar

Typical Uses

Industrial: fittings, pump bodies, pump fixtures, steam fittings
Marine: boat parts, elbows/flanges/pump bodies/valves used for sea water corrosion resistance

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C96400 B505
B505M
        70-30 Copper Nickel

Chemical Composition

Cu% Pb% Fe% P% Ni%1 C% Mn% S% Si% Nb%
Chemical Composition according to ASTM B505/B505M-18

1Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min. Single values represent maximums.
 
Rem.
 
0.01
0.25-
1.50
 
0.02
28.00-
32.00
 
0.15
 
1.50
 
0.02
 
0.50
0.50-
1.50

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C96400 20 0.323

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 2 in. or 50 mm min Brinell Hardness Remarks
ksi MPa ksi MPa % typical BHN  
65 448 35 241 25    

Physical Properties

  US Customary Metric
Physical Properties provided by CDA
Melting Point - Liquidus 2260 °F 1238 °C
Melting Point - Solidus 2140 °F 1171 °C
Density 0.323 lb/in3 at 68 °F 8.94 gm/cm3 at 20 °C
Specific Gravity 8.94 8.94
Electrical Conductivity 5% IACS at 68 °F 0.029 MegaSiemens/cm at 20 °C
Thermal Conductivity 16.4 Btu/sq ft/ft hr/°F at 68 °F 28.4 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 9 · 10-6 per °F (68-572 °F) 15.5 · 10-6 per °C (20-300 °C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of Elasticity in Tension 21000 ksi 144791 MPa

Fabrication Properties

Fabrication Properties provided by CDA

*Filler metal R CuNi, or E CuNi.
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding* Good
Coated Metal Arc Welding* Good
Machinability Rating 20

Thermal Properties

Thermal Properties provided by CDA

*Temperature is measured in Fahrenheit.   **For Stress Relief, Solution Treatment and Annealing - Time is measured in hours/inch of thickness. For Precipitation Heat Treatment - Time is measured in hours.
Treatment Time*
Solution Treatment 0

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