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UNS: N07718
ASTM: B670
AMS: 5596
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| C | Mn | Fe | S | Ni | Nb | Cr | Al | Ti |
| Min | – | – | 38 | – | 39 | 2.5 | 14.5 | – | – |
| Max | 0.30 | 0.35 | – | 0.015 | 44 | 3.3 | 17.5 | 0.06 | 0.04 |
| Temperature, °F | Modulus of Elasticity, ksi x 103 | Poisson’s Ratiob | Temperature, °F | Modulus of Elasticity, ksi x 103 | Poisson’s Ratiob | ||||||||||||||||||
| Young’s Modulus | Torsional Modulus | Young’s Modulus | Torsional Modulus | ||||||||||||||||||||
| 70 | 29.0 | 11.2 | 0.294 | 1300 | 23.0 | 8.9 | 0.292 | ||||||||||||||||
| 100 | 28.8 | 11.2 | 0.291 | 1400 | 22.3 | 8.5 | 0.306 | ||||||||||||||||
| 200 | 28.4 | 11.0 | 0.288 | 1500 | 21.3 | 8.1 | 0.321 | ||||||||||||||||
| 300 | 28.0 | 10.9 | 0.280 | 1600 | 20.2 | 7.6 | 0.331 | ||||||||||||||||
| 400 | 27.6 | 10.8 | 0.280 | 1700 | 18.8 | 7.1 | 0.334 | ||||||||||||||||
| 500 | 27.1 | 10.6 | 0.275 | 1800 | 17.4 | 6.5 | 0.341 | ||||||||||||||||
| 600 | 26.7 | 10.5 | 0.272 | 1900 | 15.9 | 5.8 | 0.366 | ||||||||||||||||
| 700 800 | 26.2 | 10.3 | 0.273 | 2000 | 14.3 | 5.1 | 0.402 | ||||||||||||||||
| 25.8 | 10.1 | 0.271 | aHot-rolled flat heat-treated 1800°F/1 hr, A.C. + 1325°F/8 hr, F.C. 20°F/hr to | ||||||||||||||||||||
| 900 | 25.3 | 9.9 | 0.272 | 1150°F, held for total aging time of 18 hr. Dynamic testing involved frequencies of | |||||||||||||||||||
| 1000 | 24.8 | 9.7 | 0.271 | from 813 to 571 cps in bending and from 3110 to 2097 cps in torsion. | |||||||||||||||||||
| 1100 | 24.2 | 9.5 | 0.276 | bComputed from (E-2G)/2G, where E is Young’s Modulus and G is torsional | |||||||||||||||||||
| 1200 | 23.7 | 9.2 | 0.283 | modulus. | |||||||||||||||||||
| Temperature, °F | Thermal Conductivity,a BTU•in/ft2•h•°F | Electrical Resistivity,a ohm circ mil/ft | Mean Linear Expansionb,c , in/in/°F x 10-6 | ||||||||||||||||||||
| Ann. 1800°F/1 hr | Ann. + Aged | Ann. 1800°F/1 hr | Ann + Aged | ||||||||||||||||||||
| -320 | – | – | – | – | 5.9d | ||||||||||||||||||
| 70 | 77 | 79 | 753 | 725 | – | ||||||||||||||||||
| 200 | 86 | 87 | 762 | 733 | 7.31 | ||||||||||||||||||
| 400 | 98 | 100 | 772 | 755 | 7.53 | ||||||||||||||||||
| 600 | 111 | 112 | 775 | 768 | 7.74 | ||||||||||||||||||
| 800 | 123 | 124 | 784 | 775 | 7.97 | ||||||||||||||||||
| 1000 | 135 | 136 | 798 | 788 | 8.09 | ||||||||||||||||||
| 1200 | 147 | 148 | 805 | 794 | 8.39 | ||||||||||||||||||
| 1400 | 160 | 161 | 802 | 797 | 8.91 | ||||||||||||||||||
| 1600 | 173 | 173 | 799 | 796 | – | ||||||||||||||||||
| 1800 | 185 | 186 | 801 | 800 | – | ||||||||||||||||||
| 2000 | 196 | 199 | 811 | 796 | – | ||||||||||||||||||
| Yield Strength | Ultimate Tensile Strength | Elongation | |
| Min (0.2% offset) | Min | (% in 2″) | |
| Sheet and strip | 80,000 psi (550 MPa) | 140,000 psi (965 MPa) | 30 (min) |
| Plate | 105,000 psi (725 MPa) | 150,000 psi (1,035 MPa) | 30 (min) |
INCONEL 718 has good resistance to a wide range of corrosive environments, including oxidizing, reducing and salt spray environments. It has good resistance to chloride stress corrosion cracking and oxidizing corrosion, making it ideal for use in harsh chemical environments.
INCONEL 718 has good resistance to a wide range of corrosive environments, including oxidizing, reducing and salt spray environments. It has good resistance to chloride stress corrosion cracking and oxidizing corrosion, making it ideal for use in harsh chemical environments.
1.Chemical and Petrochemical Industry
2.Aerospace
3.Nuclear Energy
4.Food and Pharmaceutical
5.Etc
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