C96400

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

*Consult mill for wall thickness

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-23 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

Tensile strength, min		Yield strength, at 0.5% extension under load, min		Elongation, in 2 in. or 50 mm min	Brinell hardness
Mechanical properties according to ASTM B505/B505M-23
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

Technique	Suitability
Fabrication properties provided by CDA *Filler metal R CuNi, or E CuNi.
Soldering	Excellent
Brazing	Excellent
Oxyacetylene welding	Not recommended
Gas shielded arc welding*	Good
Coated metal arc welding*	Good
Machinability rating	20

Thermal properties

Treatment	Time*
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.
Solution treatment	0

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C96400

Stocked alloy specs

Reference guide

Stocked size schedules

C96400

Typical uses

Similar or equivalent specification

Chemical composition

Machinability

Mechanical properties

Physical properties

Fabrication properties

Thermal properties

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