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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  |
| Price | EMAIL US sales@lookpolymers.com |
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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