Ampco Metal AMPCO® 18 Aluminum Bronze, Rectangular

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Ampco Metal AMPCO® 18 Aluminum Bronze, Rectangular
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	192	HB 30
Hardness, Rockwell B	92
Tensile Strength, Ultimate	689 MPa
Tensile Strength, Yield	351 MPa @Strain 0.5 %
Elongation at Break	14 %
Reduction of Area	12 %
Modulus of Elasticity	117 GPa
Compressive Yield Strength	234 MPa	Proportional Limit
Compressive Strength	980 MPa
Fatigue Strength	248 MPa @# of Cycles 1.00e+8
Shear Strength	428 MPa
Izod Impact	20.0 J
Charpy Impact	13.0 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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NAMPCO11 / 14965

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