Ampco Metal AMPCO® 18 Aluminum Bronze, Extruded and Drawn Rods, 25.4

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Ampco Metal AMPCO® 18 Aluminum Bronze, Extruded and Drawn Rods, 25.4 - 76.2 mm.
Categories:	Metal; Nonferrous Metal; Copper Alloy; Bronze
Material Notes:	Compact grain structure and high physical properties result from proper phase distribution and hot working of AMPCO 18 during the extrusion process. These qualities enable this alloy to perform successfully in an extremely wide range of difficult applications. It is an excellent bearing material characterized by good resistance to wear and fatigue. Applications: AMPCO 18 rod is produced with a good surface finish to commercial tolerances and can be used economically for volume-production applications. AMPCO 18 is ideally suited where high strength and hardness combined with wear and fatigue resistance are required. Some of the more common applications of this alloy are bushings, bearings, gears, worm wheels, valve seats and guides, hydraulic valve parts, pump rods, guide pin bushings, gibs and slides, etc.
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Physical Properties	Original Value	Comments

Density	7.45 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	187	HB 30
Hardness, Rockwell B	91
Tensile Strength, Ultimate	655 MPa
Tensile Strength, Yield	338 MPa @Strain 0.5 %
Elongation at Break	14 %
Reduction of Area	14 %
Modulus of Elasticity	117 GPa
Compressive Yield Strength	221 MPa	Proportional Limit
Compressive Strength	979 MPa
Fatigue Strength	241 MPa @# of Cycles 1.00e+8
Shear Strength	428 MPa
Izod Impact	22.0 J
Charpy Impact	14.0 J

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000142 ohm-cm	12% I.A.C.S.

Thermal Properties	Original Value	Comments
CTE, linear	16.2 µm/m-°C @Temperature 20.0 °C
Specific Heat Capacity	0.420 J/g-°C
Thermal Conductivity	63.0 W/m-K

Component Elements Properties	Original Value	Comments
Aluminum, Al	10.5 %
Copper, Cu	85.5 - 86 %	As Balance
Iron, Fe	3.5 %
Other, total	<= 0.50 %

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NAMPCO10 / 14964

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