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Rulon Bearings

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Special Metals INCONEL® alloy MA758 Ni-Cr Superalloy
Categories: Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes: INCONEL® alloy MA 758 is an oxide-dispersion-strengthened (ODS) nickel-chromium superalloy, made by mechanical alloying. It is a development of the well-established aerospace superalloy, INCONEL alloy MA 754, with its chromium content increased to 30%, to improve its performance in corrosive environments at high temperatures. The alloy's high-temperature strength is enhanced by the use of yttrium oxide for dispersion strengthening.

It is used in a range of applications including furnace skid rails, hearth rollers, jigs, tools, and other fabrications for supporting workpieces through heat-treatment processes.

It has been specified for a fueld atomizer application in diesel engines.

Information Provided by Special Metals Corporation
Vendors: Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494.

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Physical PropertiesOriginal ValueComments
Density 8.14 g/cc
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 173 MPa
@Temperature 1000 °C		Bar
 180 MPa
@Temperature 1093 °C		Plate; Longitudinal
 190 MPa
@Temperature 1093 °C		Plate; Transverse
 240 MPa
@Temperature 982 °C		Plate; Longitudinal
 250 MPa
@Temperature 982 °C		Plate; Transverse
 546 MPa
@Temperature 700 °C		Bar
 853 MPa
@Temperature 200 °C		Bar
 949 MPa
@Temperature 20.0 °C		Bar
 960 MPa
@Temperature 20.0 °C		Plate; Transverse
 1030 MPa
@Temperature 20.0 °C		Plate; Longitudinal
Tensile Strength, Yield 151 MPa
@Strain 0.2 %,
Temperature 1000 °C		Bar
 160 MPa
@Strain 0.2 %,
Temperature 1093 °C		Transverse
 170 MPa
@Strain 0.2 %,
Temperature 1093 °C		Longitudinal
 220 MPa
@Strain 0.2 %,
Temperature 982 °C		Longitudinal
 220 MPa
@Strain 0.2 %,
Temperature 982 °C		Transverse
 371 MPa
@Strain 0.2 %,
Temperature 700 °C		Bar
 495 MPa
@Strain 0.2 %,
Temperature 200 °C		Bar
 560 MPa
@Strain 0.2 %,
Temperature 20.0 °C		Bar
 680 MPa
@Strain 0.2 %,
Temperature 20.0 °C		Longitudinal
 690 MPa
@Strain 0.2 %,
Temperature 20.0 °C		Transverse
Elongation at Break 4.0 %
@Temperature 1093 °C		Plate; Longitudinal
 4.0 %
@Temperature 982 °C		Plate; Longitudinal
 5.0 %
@Temperature 1093 °C		Plate; Transverse
 6.0 %
@Temperature 982 °C		Plate; Transverse
 14 %
@Temperature 20.0 °C		Plate; Longitudinal
 22 %
@Temperature 20.0 °C		Plate; Transverse
 22 %
@Temperature 200 °C		Bar
 27 %
@Temperature 20.0 °C		Bar
 29 %
@Temperature 700 °C		Bar
 29 %
@Temperature 1000 °C		Bar
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 684.1 ohm-cir-mil/ft
@Temperature 22.0 °C
 692 ohm-cir-mil/ft
@Temperature 93.0 °C
 723.5 ohm-cir-mil/ft
@Temperature 538 °C
 724.2 ohm-cir-mil/ft
@Temperature 982 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 12.47 µm/m-°C
@Temperature 200 °C
 13.39 µm/m-°C
@Temperature 600 °C
 14.24 µm/m-°C
@Temperature 1000 °C
 15.03 µm/m-°C
@Temperature 1400 °C
Melting Point 1375 °C
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al 0.30 %
Carbon, C 0.050 %
Chromium, Cr 30 %
Iron, Fe 1.0 %
Nickel, Ni 67.55 %Remainder
Titanium, Ti 0.50 %
Y2O3 0.60 %

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Special Metals INCONEL® MA758 Oxide-Dispersion-Strengthened Ni-Cr Superalloy
Special Metals INCONEL® Alloy MA 754
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NINDA03 / 98894

Aluminum Castings




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