AMPCO® 18 Extruded and drawn rounds and rectangular bars

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Description

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.

This material data has been provided by AMPCO METAL.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

7.45 g/cm³

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Recycled Content

80 %

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Mechanical

PropertyTemperatureValueComment

Charpy impact energy

23.0 °C

12 - 14 J

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Compressive strength

23.0 °C

980 - 1013 MPa

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Compressive yield strength, 0.1%

23.0 °C

262 MPa

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Elastic modulus

23.0 °C

117 GPa

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Elongation A5

23.0 °C

12 - 14 %

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Fatigue strength

23.0 °C

241 - 248 MPa

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100.000.000 cycles

Hardness, HBW

23.0 °C

187 - 202 [-]

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HBW 10/3000

Hardness, Rockwell B

23.0 °C

91 - 94 [-]

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Izod impact energy

23.0 °C

19 - 22 J

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Proportional limit in compression

23.0 °C

221 - 248 MPa

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Reduction of area

23.0 °C

12 - 14 %

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Shear strength

23.0 °C

428 - 448 MPa

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Tensile strength

23.0 °C

655 - 745 MPa

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Yield strength Rp0.5

23.0 °C

338 - 379 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.62E-5 1/K

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Specific heat capacity

23.0 °C

420 J/(kg·K)

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Thermal conductivity

23.0 °C

63 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

23.0 °C

7.00E+6 S/m

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Specific Electrical conductivity

12 % IACS

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Chemical properties

PropertyValue

Aluminium

10.5 %

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Copper

Balance

Iron

3.5 %

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Other

0.5 %

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Technological properties

Property
Application areas

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.