AMPCO® 18.23 Centrifugal castings

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Description

This heat-treated alloy is the ultimate in high-strength bronzes requiring good bearing characteristics and exceptional wear resistance. It has greater toughness than grade AMPCO® 18.22 and better physical properties than grades AMPCO® 18 or AMPCO® 18.136. Its exceptional proportional limit gives it a maximum resistance to distortion, enabling the designer to take full advantage of its high physical properties.

Ashby charts

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Properties

General

Density

ρ

7.45 g/cm³ at 23 °C

Mechanical

Charpy impact energy

aK,charpy

16.3 J at 23 °C

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Compressive strength

Rmc

1034 MPa at 23 °C

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Compressive yield strength, 0.1%

Rs,0.1

345 MPa at 23 °C

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Elastic modulus

E

110 GPa at 23 °C

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Elongation A5

A5

16 % at 23 °C

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Fatigue strength

SNf

248 MPa at 23 °C

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100.000.000 cycles

Hardness, HBW

HBW

207 [-] at 23 °C

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HBW 10/3000

Hardness, Rockwell B

HRB

95 [-] at 23 °C

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Izod impact energy

aK,izod

24 J at 23 °C

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Proportional limit

Rp

214 MPa at 23 °C

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Proportional limit in compression

Rpc

310 MPa at 23 °C

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Reduction of area

Z

16 % at 23 °C

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Shear strength

τ

421 MPa at 23 °C

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Tensile strength

Rm

758 MPa at 23 °C

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Yield strength Rp0.5

Rp0.5

386 MPa at 23 °C

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Thermal

Coefficient of thermal expansion

α

1.62E-5 1/K at 23 °C

Specific heat capacity

cp

420 J/(kg·K) at 23 °C

Thermal conductivity

λ

59 W/(m·K) at 23 °C

Electrical

Electrical conductivity

σel

7.50E+6 S/m at 23 °C

Specific Electrical conductivity

13 % IACS

Chemical properties

Element

Weight %

Comment

Cu

-

Balance

Al

10.5 %

Fe

3.5 %

Other

0.5 %

Technological properties

Application areas

AMPCO® 18.23 gives a successful performance under heavy loads and impact conditions and makes it a preferred material for heavy-duty worm gears and similar applications.

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.