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Rulon Bearings

Ampco Metal AMPCO® M4 Nickel-Aluminum Bronze, Extrusion, 25.4 - 101.6 mm.
Categories: Metal; Nonferrous Metal; Copper Alloy; Bronze

Material Notes: The patented process gives AMPCO M4 mechanical properties beyond the range of commercial nickel-aluminum bronzes, comparable to beryllium copper at a lower cost and without the beryllium copper industrial hygiene requirements.

Applications: AMPCO M4 was initially developed as an aircraft specification alloy for gears in retractable landing assemblies, engine spacer bearings and other similar applications. It is rapidly growing in use where higher mechanical properties at elevated temperatures together with corrosion-resistant properties are required. Typical applications include aircraft landing gear bearings and bushings, bending dies (shoes and mandrels) for the tube bending industry, gear wheels and wear/guide plates, etc..

Key Words: AMS 4590 for extrusions
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 7.45 g/cc0.269 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 286286HB 30
Hardness, Rockwell C 2929
Tensile Strength, Ultimate 965 MPa140000 psi
Tensile Strength, Yield 724 MPa
@Strain 0.5 %
105000 psi
@Strain 0.5 %
Elongation at Break 8.0 %8.0 %
Reduction of Area 12 %12 %
Modulus of Elasticity 124 GPa18000 ksi
Compressive Yield Strength 689 MPa99900 psi0.1% Perm. Set
Compressive Strength 1324 MPa192000 psi
Fatigue Strength 352 MPa
@# of Cycles 1.00e+8
51100 psi
@# of Cycles 1.00e+8
Shear Strength 538 MPa78000 psi
Charpy Impact 7.00 J5.16 ft-lb
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000208 ohm-cm0.0000208 ohm-cm8.2% I.A.C.S.
 
Thermal PropertiesMetricEnglishComments
CTE, linear 16.0 µm/m-°C
@Temperature 20.0 °C
8.89 µin/in-°F
@Temperature 68.0 °F
Specific Heat Capacity 0.450 J/g-°C0.108 BTU/lb-°F
Thermal Conductivity 42.0 W/m-K291 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 10.5 %10.5 %
Copper, Cu 77.7 - 78.2 %77.7 - 78.2 %As Balance
Iron, Fe 4.8 %4.8 %
Manganese, Mn 1.5 %1.5 %
Nickel, Ni 5.0 %5.0 %
Other, total <= 0.50 %<= 0.50 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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Ampco Metal AMPCO® M4 Nickel-Aluminum Bronze, Extrusion, ≤ 25.4 mm.
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Ampco Metal AMPCOLOY® 940 Nickel-Copper, Extrusion, 25 - 50 mm.

NAMPCO25 / 14979

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