HAYNES® 75 alloy
Principal Features
HAYNES® 75 alloy (UNS N06075) is a solution-strengthened nickel-chromium alloy with moderate strength to 1200°F (650°C). It is principally used in low stress elevated temperature application requiring reasonable oxidation resistance, and is approximately equivalent to alloy 600 in performance. Alloy 75 is used in a number of fabricated part applications in the gas turbine and aerospace industries in Europe, and is also employed in general industrial heating uses. The alloy is readily formed and fabricated using conventional techniques.
*Please contact our technical support team if you have technical questions about this alloy.
Nominal Composition
Weight %
Nickel
76 Balance
Cobalt
1 max.
Chromium
20
Iron
5 max
Titanium
0.4
Manganese
1 max.
Silicon
1 max.
Aluminum
0.4 max.
Titanium
0.4
Carbon
0.11
| Weight % | |
| Nickel | 76 Balance |
| Cobalt | 1 max. |
| Chromium | 20 |
| Iron | 5 max |
| Titanium | 0.4 |
| Manganese | 1 max. |
| Silicon | 1 max. |
| Aluminum | 0.4 max. |
| Titanium | 0.4 |
| Carbon | 0.11 |
Physical Properties
| Physical Property | British Units | Metric Units | ||
| Density | RT |
0.302 lb/in3 |
RT |
8.37 g/cm3 |
| Melting Range | 2445-2515°F | – | 1340-1380°C | – |
| Electrical Resistivity | 400°F | 44.1 µohm-in | 200°C | 112µohm-cm |
| 800°F | 46.0 µohm-in | 400°C | 117 µohm-cm | |
| 1000°F | 45.5 µohm-in | 600°C | 115 µohm-cm | |
| 1200°F | 45.3 µohm-in | 700°C | 115 µohm-cm | |
| 1400°F | 45.3 µohm-in | 800°C | 115 µohm-cm | |
| 1600°F | 45.3 µohm-in | 900°C | 115 µohm-cm | |
| 1800°F | 45.6 µohm-in | 1000°C | 116 µohm-cm | |
| Thermal Conductivity | 800°F |
133 Btu-in/ft2-hr-°F |
400°C | 18.6 W/m-°C |
| 1000°F |
149 Btu-in/ft2-hr-°F |
600°C | 22.7 W/m-°C | |
| 1200°F |
164 Btu-in/ft2-hr-°F |
700°C | 24.7 W/m-°C | |
| 1400°F |
179 Btu-in/ft2-hr-°F |
800°C | 26.5 W/m-°C | |
| 1600°F |
193 Btu-in/ft2-hr-°F |
900°C | 28.4 W/m-°C | |
| 1800°F |
207 Btu-in/ft2-hr-°F |
1000°C | 30.1 W/m-°C | |
| Mean Coefficient of Thermal Expansion | 70-800°F | 7.9 µin/in -°F | 20-500°C | 14.3 µm/m-°C |
| 70-1000°F | 8.2 µin/in -°F | 20-600°C | 15.0 µm/m-°C | |
| 70-1200°F | 8.5 µin/in -°F | 20-700°C | 15.4 µm/m-°C | |
| 70-1400°F | 8.9 µin/in -°F | 20-800°C | 16.5 µm/m-°C | |
| 70-1600°F | 9.4 µin/in -°F | 20-900°C | 17.1 µm/m-°C | |
| 70-1800°F | 10.3 µin/in -°F | 20-1000°C | 18.2 µm/m-°C | |
| Dynamic Modulus of Elasticity | 70°F |
32.0 x 106 psi |
20°C | 221 GPa |
| 400°F |
30.5 x 106 psi |
200°C | 210 GPa | |
| 800°F |
28.2 x 106 psi |
400°C | 197 GPa | |
| 1000°F |
27.0 x 106 psi |
600°C | 181 GPa | |
| 1200°F |
25.5 x 106 psi |
700°C | 173 GPa | |
| 1400°F |
24.6 x 106 psi |
800°C | 165 GPa | |
| 1600°F |
22.6 x 106 psi |
900°C | 153 GPa | |
| 1800°F |
20.5 x 106 psi |
1000°C | 140 GPa | |
RT = Room Temperature
Heat Treatment Sheet and Strip
1925°F (1050°C)/Bright Anneal
Tensile Properties Sheet
1925°F (1050°C)/Bright Anneal
| Form | Test Temperature | 0.2% Offset Yield Strength | Ultimate Tensile Strength | Elongation | |||
| Sheet | °F | °C | ksi | MPa | ksi | MPa | % |
| RT | RT | 59.4 | 407 | 114.4 | 792 | 31 | |
| 1000 | 538 | 51.9 | 363 | 105.6 | 726 | 27 | |
| 1200 | 649 | 40.0 | 275 | 69.3 | 473 | 32 | |
| 1400 | 760 | 22.0 | 152 | 41.4 | 286 | 75 | |
| 1600 | 871 | 9.9 | 68 | 20.2 | 139 | 90 | |
| 1800 | 982 | 4.4 | 31 | 9.7 | 66 | 91 | |
RT = Room Temperature
Typical Stress-Rupture Strength
1925ºF (1050ºC) Anneal
| Test Temperature | Approximate Initial Stress to Produce Rupture in: | ||||||
| 10 h | 100 h | 1000 h | |||||
| °F | °C | ksi | MPa | ksi | MPa | ksi | MPa |
| 1200 | 650 | 27.0 | 185 | 18.5 | 130 | 12.0 | 83 |
| 1300 | 705 | 16.0 | 110 | 10.2 | 70 | 6.8 | 47 |
| 1400 | 760 | 9.5 | 66 | 6.0 | 41 | 3.8 | 26 |
| 1500 | 815 | 5.8 | 40 | 3.7 | 26 | 2.2 | 15 |
| 1600 | 870 | 3.6 | 25 | 2.0 | 14 | 1.2 | 8.3 |
Disclaimer
Haynes International makes all reasonable efforts to ensure the accuracy and correctness of the data displayed on this site but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. Alloy properties disclosed here are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature and, as such, are indicative only of the results of such tests and should not be considered guaranteed maximums or minimums. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Safety Data Sheets supplied by Haynes International, Inc. All trademarks are owned by Haynes International, Inc., unless otherwise indicated.
Haynes International makes all reasonable efforts to ensure the accuracy and correctness of the data displayed on this site but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. Alloy properties disclosed here are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature and, as such, are indicative only of the results of such tests and should not be considered guaranteed maximums or minimums. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Safety Data Sheets supplied by Haynes International, Inc. All trademarks are owned by Haynes International, Inc., unless otherwise indicated.