Leaded Nickel Bronze, UNS C97600, Copper Casting Alloy

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Leaded Nickel Bronze, UNS C97600, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Investment, and Sand. Applications: Marine castings, sanitary fittings, ornamental hardware, valves, pumps. Classified under: Nickel silvers. ASTM B584; formerly ASTM B149-11A Data typical for sand-cast test bars. Alloy does not respond to heat treating. Casting shrinkage allowance is 2%
Key Words:	Leaded nickel silver, ASTM B584, ASTM B149-11A
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Physical Properties	Original Value	Comments

Density	8.90 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	80	500 kg
Tensile Strength, Ultimate	310 MPa
Tensile Strength, Yield	165 MPa @Strain 0.5 %
Elongation at Break	20 %	in 50 mm
Creep Strength	153 MPa @Temperature 290 °C	for 0.00001%/h
	224 MPa @Temperature 230 °C	for 0.00001%/h
Modulus of Elasticity	130 GPa
Compressive Strength	205 MPa	at permanent set of 1%
	395 MPa	at permanent set of 10%
Fatigue Strength	107 MPa @# of Cycles 1.00e+8	Reverse Bending
Machinability	70 %	UNS C36000 (free-cutting brass) = 100%
Charpy Impact	15.0 J	V-notch

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00003448 ohm-cm @Temperature 20.0 °C	5% IACS, as-cast tempers

Thermal Properties	Original Value	Comments
CTE, linear	17.0 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.375 J/g-°C
Thermal Conductivity	22.0 W/m-K @Temperature 20.0 °C
Melting Point	1108 - 1143 °C
Solidus	1108 °C
Liquidus	1143 °C
Shrinkage	1.1 %	Patternmaker's Shrinkage (1/8 in./ft.)

Processing Properties	Original Value	Comments
Annealing Temperature	260 °C	Stress-Relieving Temperature; 1 h for each 25 mm of section thickness
Casting Temperature	1230 - 1320 °C	Heavy castings
	1260 - 1430 °C	Light castings

Component Elements Properties	Original Value	Comments
Aluminum, Al	<= 0.0050 %
Antimony, Sb	<= 0.25 %
Copper, Cu	63 - 67 %
Iron, Fe	<= 1.5 %
Lead, Pb	3.0 - 5.0 %
Manganese, Mn	<= 1.0 %
Nickel, Ni	19 - 21.5 %
Phosphorus, P	<= 0.050 %
Silicon, Si	<= 0.15 %
Sulfur, S	<= 0.080 %
Tin, Sn	3.5 - 4.5 %
Zinc, Zn	3.0 - 9.0 %

References for this datasheet.

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MC97600b1 / 11977

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