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Special Metals INCONEL® alloy MA758 Ni-Cr Superalloy

Category Metal , Nonferrous Metal , Nickel Alloy , Superalloy
Manufacturer Special Metals (includes the former Inco Alloys International Inc.)
Trade Name INCONEL®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Special Metals INCONEL® alloy MA758 Ni-Cr Superalloy.pdf
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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
Physical Properties Metric English Comments
Density 8.14 g/cc
0.294 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength at Break 173 MPa

@Temperature 1000 °C
 25100 psi

@Temperature 1830 °F
 Bar
180 MPa

@Temperature 1093 °C
 26100 psi

@Temperature 1999 °F
 Plate; Longitudinal
190 MPa

@Temperature 1093 °C
 27600 psi

@Temperature 1999 °F
 Plate; Transverse
240 MPa

@Temperature 982 °C
 34800 psi

@Temperature 1800 °F
 Plate; Longitudinal
250 MPa

@Temperature 982 °C
 36300 psi

@Temperature 1800 °F
 Plate; Transverse
546 MPa

@Temperature 700 °C
 79200 psi

@Temperature 1290 °F
 Bar
853 MPa

@Temperature 200 °C
 124000 psi

@Temperature 392 °F
 Bar
949 MPa

@Temperature 20.0 °C
 138000 psi

@Temperature 68.0 °F
 Bar
960 MPa

@Temperature 20.0 °C
 139000 psi

@Temperature 68.0 °F
 Plate; Transverse
1030 MPa

@Temperature 20.0 °C
 149000 psi

@Temperature 68.0 °F
 Plate; Longitudinal
Tensile Strength, Yield 151 MPa

@Strain 0.200 %,
Temperature 1000 °C
 21900 psi

@Strain 0.200 %,
Temperature 1830 °F
 Bar
160 MPa

@Strain 0.200 %,
Temperature 1093 °C
 23200 psi

@Strain 0.200 %,
Temperature 1999 °F
 Transverse
170 MPa

@Strain 0.200 %,
Temperature 1093 °C
 24700 psi

@Strain 0.200 %,
Temperature 1999 °F
 Longitudinal
220 MPa

@Strain 0.200 %,
Temperature 982 °C
 31900 psi

@Strain 0.200 %,
Temperature 1800 °F
 Longitudinal
220 MPa

@Strain 0.200 %,
Temperature 982 °C
 31900 psi

@Strain 0.200 %,
Temperature 1800 °F
 Transverse
371 MPa

@Strain 0.200 %,
Temperature 700 °C
 53800 psi

@Strain 0.200 %,
Temperature 1290 °F
 Bar
495 MPa

@Strain 0.200 %,
Temperature 200 °C
 71800 psi

@Strain 0.200 %,
Temperature 392 °F
 Bar
560 MPa

@Strain 0.200 %,
Temperature 20.0 °C
 81200 psi

@Strain 0.200 %,
Temperature 68.0 °F
 Bar
680 MPa

@Strain 0.200 %,
Temperature 20.0 °C
 98600 psi

@Strain 0.200 %,
Temperature 68.0 °F
 Longitudinal
690 MPa

@Strain 0.200 %,
Temperature 20.0 °C
 100000 psi

@Strain 0.200 %,
Temperature 68.0 °F
 Transverse
Elongation at Break 4.0 %

@Temperature 1093 °C
 4.0 %

@Temperature 1999 °F
 Plate; Longitudinal
4.0 %

@Temperature 982 °C
 4.0 %

@Temperature 1800 °F
 Plate; Longitudinal
5.0 %

@Temperature 1093 °C
 5.0 %

@Temperature 1999 °F
 Plate; Transverse
6.0 %

@Temperature 982 °C
 6.0 %

@Temperature 1800 °F
 Plate; Transverse
14 %

@Temperature 20.0 °C
 14 %

@Temperature 68.0 °F
 Plate; Longitudinal
22 %

@Temperature 20.0 °C
 22 %

@Temperature 68.0 °F
 Plate; Transverse
22 %

@Temperature 200 °C
 22 %

@Temperature 392 °F
 Bar
27 %

@Temperature 20.0 °C
 27 %

@Temperature 68.0 °F
 Bar
29 %

@Temperature 700 °C
 29 %

@Temperature 1290 °F
 Bar
29 %

@Temperature 1000 °C
 29 %

@Temperature 1830 °F
 Bar
Thermal Properties Metric English Comments
CTE, linear 12.47 µm/m-°C

@Temperature 200 °C
 6.928 µin/in-°F

@Temperature 392 °F
13.39 µm/m-°C

@Temperature 600 °C
 7.439 µin/in-°F

@Temperature 1110 °F
14.24 µm/m-°C

@Temperature 1000 °C
 7.911 µin/in-°F

@Temperature 1830 °F
15.03 µm/m-°C

@Temperature 1400 °C
 8.350 µin/in-°F

@Temperature 2550 °F
Melting Point 1375 °C
2507 °F
Component Elements Properties Metric English Comments
Aluminum, Al 0.30 %
0.30 %
Carbon, C 0.050 %
0.050 %
Chromium, Cr 30 %
30 %
Iron, Fe 1.0 %
1.0 %
Nickel, Ni 67.55 %
67.55 %
Remainder
Titanium, Ti 0.50 %
0.50 %
Y2O3 0.60 %
0.60 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0001137 ohm-cm

@Temperature 22.0 °C
 0.0001137 ohm-cm

@Temperature 71.6 °F
0.000115 ohm-cm

@Temperature 93.0 °C
 0.000115 ohm-cm

@Temperature 199 °F
0.0001203 ohm-cm

@Temperature 538 °C
 0.0001203 ohm-cm

@Temperature 1000 °F
0.0001204 ohm-cm

@Temperature 982 °C
 0.0001204 ohm-cm

@Temperature 1800 °F
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