Description
C96400（UNS C96400/2.0835/GCuNi30）
C96400（UNS C96400/2.0835/GCuNi30/Copper-Nickel 70/30）
C96400 is the cast equivalent of 70/30 Cupro-Nickel. C964 shows good resistant to stress corrosion and is often used when an application will involve high-velocity seawater. UNS C96400 is often used in the production of fittings and flanges for shipboard application.
Common applications include:
-
Seawater applications
-
Valve components
-
Pump bodies
Chemical Composition
Cu% |
Pb% |
Fe% |
P% |
Ni%1 |
C% |
Mn% |
S% |
Si% |
Nb% |
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|---|---|---|---|---|---|---|---|---|---|---|---|
Chemical Composition according to ASTM B505/B505M-181Ni value includes Co.Note: Cu + Sum of Named Elements, 99.5% min. Single values, unless otherwise noted, represent maximums. |
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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 |
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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 |
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Tensile Strength, min |
Yield Strength, at 0.5% Extension Under Load, min |
Elongation, in 2 in. or 50 mm min |
Brinell Hardness |
Remarks |
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|---|---|---|---|---|---|---|---|---|---|---|---|
ksi |
MPa |
ksi |
MPa |
% |
typical BHN |
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65 |
448 |
35 |
241 |
25 |
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Physical Properties
US Customary |
Metric |
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|---|---|---|---|---|---|---|---|---|---|---|---|
Physical Properties provided by CDA |
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Melting Point – Liquidus |
2260 °F |
1238 °C |
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Melting Point – Solidus |
2140 °F |
1171 °C |
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Density |
0.323 lb/in3 at 68 °F |
8.94 gm/cm3 at 20 °C |
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Specific Gravity |
8.94 |
8.94 |
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Electrical Conductivity |
5% IACS at 68 °F |
0.029 MegaSiemens/cm at 20 °C |
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Thermal Conductivity |
16.4 Btu/sq ft/ft hr/°F at 68 °F |
28.4 W/m at 20 °C |
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Coefficient of Thermal Expansion 68-572 |
9 · 10-6 per °F (68-572 °F) |
15.5 · 10-6 per °C (20-300 °C) |
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Specific Heat Capacity |
0.09 Btu/lb/°F at 68 °F |
377.1 J/kg at 293 °C |
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Modulus of Elasticity in Tension |
21000 ksi |
144791 MPa |
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Fabrication Properties
Fabrication Properties provided by CDA*Filler metal R CuNi, or E CuNi. |
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Technique |
Suitability |
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|---|---|---|---|---|---|---|---|---|---|---|---|
Soldering |
Excellent |
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Brazing |
Excellent |
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Oxyacetylene Welding |
Not Recommended |
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Gas Shielded Arc Welding* |
Good |
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Coated Metal Arc Welding |
Good |
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Machinability Rating |
20 |
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Specifications for C96400 Copper-Nickel
ASTM |
Military |
|
Centrifugal Cast |
ASTM B369 |
MIL-C-20159 |
Sand Cast |
ASTM B369 |
|
Continuous Cast |
ASTM B505 |
|
Ingot |
ASTM B30 |
