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Ampco Metal AMPCO® 18 Aluminum Bronze, Extruded and Drawn Rods, 12.7 - 25.4 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 PropertiesOriginal ValueComments
Density 7.45 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 192HB 30
Hardness, Rockwell B 92
Tensile Strength, Ultimate 724 MPa
Tensile Strength, Yield 365 MPa
@Strain 0.5 %
Elongation at Break 14 %
Reduction of Area 14 %
Modulus of Elasticity 117 GPa
Compressive Yield Strength 241 MPaProportional Limit
 262 MPa0.1% Perm. Set
Compressive Strength 1000 MPa
Fatigue Strength 248 MPa
@# of Cycles 1.00e+8
Shear Strength 448 MPa
Izod Impact 22.0 J
Charpy Impact 14.0 J
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000142 ohm-cm12% I.A.C.S.
 
Thermal PropertiesOriginal ValueComments
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 PropertiesOriginal ValueComments
Aluminum, Al 10.5 %
Copper, Cu 85.5 - 86 %As Balance
Iron, Fe 3.5 %
Other, total <= 0.50 %

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NAMPCO09 / 14963

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