AMPCO® 18.23: Premium Heat‑Treated Sand Castings for Superior Strength and Wear Resistance
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.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 7.45 g/cm³ |
Recycled Content | 80 % |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Charpy impact energy | 23.0 °C | 13.6 J | |
Compressive strength | 23.0 °C | 1034 MPa | |
Elastic modulus | 23.0 °C | 110 GPa | |
Elongation A5 | 23.0 °C | 14 % | |
Fatigue strength | 23.0 °C | 234 MPa | 100.000.000 cycles |
Hardness, HBW | 23.0 °C | 202 [-] | HBW 10/3000 |
Hardness, Rockwell B | 23.0 °C | 94 [-] | |
Izod impact energy | 23.0 °C | 20 J | |
Proportional limit | 23.0 °C | 214 MPa | |
Proportional limit in compression | 23.0 °C | 310 MPa | |
Reduction of area | 23.0 °C | 14 % | |
Shear strength | 23.0 °C | 400 MPa | |
Tensile strength | 23.0 °C | 724 MPa | |
Yield strength Rp0.5 | 23.0 °C | 365 MPa |
Thermal
| Property | Temperature | Value |
|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.62E-5 1/K |
Specific heat capacity | 23.0 °C | 420 J/(kg·K) |
Thermal conductivity | 23.0 °C | 59 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 23.0 °C | 7.50E+6 S/m |
Specific Electrical conductivity | 13 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 10.5 % |
Copper | Balance |
Iron | 3.5 % |
Other | 0.5 % |
Technological properties
| Property | ||
|---|---|---|
| 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. | |
Metal
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