Aluminum Bronze, UNS C95300 Casting Alloy, TQ50 Temper

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Aluminum Bronze, UNS C95300 Casting Alloy, TQ50 Temper
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Heat treatable. Except where noted, all property values listed below are for sand casting. Recommended Casting Methods: Centrifugal, Continuous, Permanent Mold, Plaster, and Sand. Applications: Electrical applications, pickling baskets, nuts, gears, steel mill slippers, marine equipment, welding jaws, non-sparking hardware. Classified under: Aluminum bronzes. ASTM B148; formerly ASTM B148-9B Tempering: Solution treated at 855°C (1575°F), quenched, tempered 2 hours at 620°C (1150°F).
Key Words:	Aluminum bronze, ASTM B148, ASTM B148-9B
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Physical Properties	Original Value	Comments

Density	7.53 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	174	3000 kg
Hardness, Rockwell B	81
Tensile Strength, Ultimate	550 MPa
Tensile Strength, Yield	275 MPa
Elongation at Break	12 %	in 50 mm
Reduction of Area	14 %
Modulus of Elasticity	110 GPa
Compressive Strength	825 MPa
Poissons Ratio	0.314
Machinability	55 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	42.0 GPa
Charpy Impact	37.0 J @Temperature -20.0 - 100 °C	Keyhole

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000133 ohm-cm @Temperature 20.0 °C
Magnetic Permeability	1.07	8 kA/m field strength

Thermal Properties	Original Value	Comments
CTE, linear	16.2 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.375 J/g-°C
Thermal Conductivity	63.0 W/m-K @Temperature 20.0 °C
Melting Point	1040 - 1045 °C
Solidus	1040 °C
Liquidus	1045 °C
Shrinkage	1.6 %	Patternmaker's Shrinkage (3/16 in./ft.)

Processing Properties	Original Value	Comments
Annealing Temperature	595 - 650 °C
Solution Temperature	855 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	9.0 - 11 %
Copper, Cu	>= 86 %
Iron, Fe	0.80 - 1.5 %
Other, total	<= 1.0 %

Descriptive Properties
Elastic Limit	125 MPa	as cast
	205 MPa	TQ50 temper

References for this datasheet.

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MC95300b2 / 193497

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