Ampco Metal AMPCO® 18 Aluminum Bronze, Extruded and Drawn Rods, 12.7

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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 Properties	Metric	English	Comments

Density	7.45 g/cc	0.269 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	192	192	HB 30
Hardness, Rockwell B	92	92
Tensile Strength, Ultimate	724 MPa	105000 psi
Tensile Strength, Yield	365 MPa @Strain 0.5 %	52900 psi @Strain 0.5 %
Elongation at Break	14 %	14 %
Reduction of Area	14 %	14 %
Modulus of Elasticity	117 GPa	17000 ksi
Compressive Yield Strength	241 MPa	35000 psi	Proportional Limit
	262 MPa	38000 psi	0.1% Perm. Set
Compressive Strength	1000 MPa	145000 psi
Fatigue Strength	248 MPa @# of Cycles 1.00e+8	36000 psi @# of Cycles 1.00e+8
Shear Strength	448 MPa	65000 psi
Izod Impact	22.0 J	16.2 ft-lb
Charpy Impact	14.0 J	10.3 ft-lb

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000142 ohm-cm	0.0000142 ohm-cm	12% I.A.C.S.

Thermal Properties	Metric	English	Comments
CTE, linear	16.2 µm/m-°C @Temperature 20.0 °C	9.00 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	0.420 J/g-°C	0.100 BTU/lb-°F
Thermal Conductivity	63.0 W/m-K	437 BTU-in/hr-ft²-°F

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

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NAMPCO09 / 14963

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