Everdur, UNS C87300, Copper Casting Alloy

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Everdur, UNS C87300, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Investment, Permanent Mold, Plaster, and Sand. Applications: Bearings, bells, impellers, pump and valve components, marine fittings, corrosion resistant castings. Classified under: Silicon bronzes and silicon brasses. ASTM B584; formerly ASTM B198-12A Typical data for separately cast test bars. Alloy does not respond to heat treating. Casting shrinkage allowance is 1.8 - 2.0%
Key Words:	Silicon Bronze, Everdur, Herculor, Navy Tombasil, ASTM B584; ASTM B198-12A, formerly C87200
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Physical Properties	Metric	English	Comments

Density	8.36 g/cc	0.302 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	85	85
Tensile Strength, Ultimate	380 MPa	55100 psi
Tensile Strength, Yield	170 MPa @Strain 0.5 %	24700 psi @Strain 0.5 %
Elongation at Break	30 %	30 %	In 50 mm
Modulus of Elasticity	105 GPa	15200 ksi
Compressive Strength	125 MPa	18100 psi	at permanent set of 0.1%
	415 MPa	60200 psi	at permanent set of 10%
Machinability	50 %	50 %	UNS C36000 (free-cutting brass) = 100%
Izod Impact	45.0 J	33.2 ft-lb

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000025733 ohm-cm @Temperature 20.0 °C	0.000025733 ohm-cm @Temperature 68.0 °F	6.7% IACS
Magnetic Permeability	1.0	1.0

Thermal Properties	Metric	English	Comments
CTE, linear	19.6 µm/m-°C @Temperature 20.0 - 260 °C	10.9 µin/in-°F @Temperature 68.0 - 500 °F
Thermal Conductivity	28.0 W/m-K @Temperature 20.0 °C	194 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	821 - 916 °C	1510 - 1680 °F
Solidus	821 °C	1510 °F
Liquidus	916 °C	1680 °F
Shrinkage	2.1 %	2.1 %	Patternmaker's Shrinkage (1/4 in./ft.)

Component Elements Properties	Metric	English	Comments
Copper, Cu	>= 94 %	>= 94 %
Iron, Fe	<= 0.20 %	<= 0.20 %
Lead, Pb	<= 0.20 %	<= 0.20 %
Manganese, Mn	0.80 - 1.5 %	0.80 - 1.5 %
Silicon, Si	3.5 - 4.5 %	3.5 - 4.5 %
Zinc, Zn	<= 0.25 %	<= 0.25 %

References for this datasheet.

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MC87300b1 / 11919

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