Inconel Alloy 625 (UNS designation N06625) is a nickel-based superalloy that possesses high strength properties and resistance to elevated temperatures. It also demonstrates remarkable protection against corrosion and oxidation. Its ability to withstand high stress and a wide range of temperatures, both in and out of water, as well as being able to resist corrosion while being exposed to highly acidic environments makes it a fitting choice for nuclear and marine applications.
chemical properties of Inconel 625 include:
Cr | Mo | Co | Nb+Ta | Al | Ti | C | Fe | Mn | Si | P | S | Ni | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Min | 20 | 8 | -- | 3.15 | -- | -- | -- | -- | -- | -- | -- | -- | Balance |
Max | 23 | 10 | 1 | 4.15 | .4 | .4 | .1 | 5 | .5 | .5 | .015 | .015 | Balance |
Physical Property | °C | Metric Units | °F | British Units |
Density | 22 | 8.44 g/cubic cm | 72 | 0.305 lb/cubic in. |
Electrical Resistivity | 23 100 200 300 400 500 600 | 1.26 microhm-m 1.27 1.28 1.29 1.30 1.31 1.32 | 74 212 392 572 752 932 1112 | 49.6 microhm-in. 50.0 50.4 50.8 51.2 51.6 52.0 |
Mean Coefficient of Thermal Expansion | 20-204 20-316 20-427 20-538 20-649 20-760 20-871 20-982 | 13.1 x 10(-6)m/m-°C 13.5 13.9 14.4 15.1 15.7 16.6 17.3 | 68-400 68-600 68-800 68-1000 68-1200 68-1400 68-1600 68-1800 | 7.3 microinches/in.-°F 7.5 7.7 8.0 8.4 8.7 9.2 9.6 |
Thermal Conductivity | 23 100 200 300 400 500 600 | 9.8 W/M-°C 11.4 13.4 15.5 17.6 19.6 21.3 | 74 212 392 572 752 932 1112 | 68 Btu-in./ft².-hr.-°F 79 93 108 122 136 148 |
Specific Heat | 0 100 200 300 400 500 600 | 429 J/kg-°C 446 463 480 496 513 560 | 32 212 392 572 752 932 1112 | 0.102 Btu/lb-°F 0.107 0.111 0.115 0.118 0.123 0.134 |
Form | Condition | Test Temp., F(C) | Average Dynamic Modulus of Elasticity, psi x 10(6) (MPa) |
Plate, 3/8 in. (9.5 mm) thick | Annealed at 1925°F (1052°C), rapid cooled | Room 200 (93) 400 (204) 600 (316) 800 (427) 1000 (538) 1200 (649) 1400 (760) 1600 (871) 1800 (982) | 30.2 (208,000) 29.2 (201,000) 28.8 (199,000) 27.7 (191,000) 26.7 (184,000) 25.6 (176,000) 24.3 (168,000) 22.8 (157,000) 21.2 (146,000) 18.7 (129,000) |
Aging Temperature, F (C) | Aging Time, hrs. | Average Charpy V-Notch Impact Strength, | |
ft. lbs. | J | ||
Annealed** | -- | 81 | 110 |
1200 (649) | 1000 4000 8000 16000 | 11 8 5 4 | 15 11 7 5 |
1400 (760) | 1000 4000 8000 16000 | 5 4 5 4 | 7 5 7 5 |
1600 (871) | 1000 4000 8000 16000 | 12 11 15 14 | 16 15 20 19 |
Condition | Form | Ultimate Tensile Strength, ksi (MPa) | Yield Strength at 0.2% offset,ksi (MPa) | Elongation in 2" percent | Hardness, Rockwell |
Annealed at 1925°F (1052°C), rapid cooled | Sheet 0.014-0.063" thick | 132.0 (910) | 67.9 (468) | 47 | B94 |
Annealed at 1925°F (1052°C), rapid cooled | Sheet,* 0.0.78-0.155" thick | 131.5 (907) | 67.4 (465) | 45 | B97 |
Annealed at 1925°F (1052°C), rapid cooled | Plate,*** 1/4" 1/2" 3/4" 1.00" 1-1/2" 1-3/4" | 132.0 (910) 130.0 (896) 132.3 (912) 127.2 (877) 127.3 (878) 128.0 (883) | 65.5 (452) 67.0 (462) 80.0 (552) 75.3 (519) 73.7 (508) 66.0 (455) | 46 44 44 42 43 44 | B94 B98 B98 B97 B97 C20 |
Form | Aging Temperature, F (C) | Aging Tme, hrs. | Hardness, Rockwell A |
Plate, 1/2 in. (12.7 mm) thick | Annealed** | -- | 58 |
1200 (649) | 1000 4000 8000 | 68 68 68 | |
1400 (760) | 1000 4000 8000 | 65 66 65 | |
1600 (871) | 1000 4000 8000 | 60 60 60 |
Form | Aging Temperature, F (C) | Aging Tme, hrs. | Ultimate Tensile Strength, Ksi (MPa) | Yield Strength at 0.2% offset, Ksi (MPa) | Elongation in 2 in., (50.8 mm), percent |
Plate, 1/2 in. (12.7 mm) thick | Annealed** | -- | 127.7 (880) | 66.2 (456) | 46 |
1200 (649) | 1000 4000 8000 16000 | 165.0 (1138) 163.6 (1128) 164.2 (1132) 165.4 (1140) | 122.3 (843) 117.9 (813) 117.8 (812) 118.5 (817) | 28 24 18 12 | |
1400 (760) | 1000 4000 8000 16000 | 142.9 (985) 145.5 (1003) 142.6 (983) 140.4 (968) | 95.5 (658) 104.1 (718) 97.4 (672) 96.1 (663) | 17 12 13 12 | |
1600 (871) | 1000 4000 8000 16000 | 130.0 (896) 130.0 (896) 127.0 (876) 128.4 (885) | 68.3 (471) 66.4 (458) 63.7 (439) 63.4 (437) | 30 29 26 32 |
Test Temperature, °F(°C) | Ultimate Tensile Strength, ksi (MPa) | Yield Strength at 0.2% offset,ksi (MPa) | Elongation in 2" percent |
Room 200 400 600 800 1000 1200 1400 1600 1800 2000 | 138.8 (957) 133.3 (919) 129.4 (892) 125.6 (866) 122.2 (843) 119.9 (827) 119.6 (825) 88.4 (609) 52.1 (359) 25.0 (172) 13.3 (92) | 72.0 (496) 67.3 (464) 62.2 (429) 59.5 (410) 59.2 (408) 58.8 (405) 57.0 (393) 55.3 (381) 34.9 (241) 10.8 (75) 6.1 (42) | 38 41 44 45 45 46 47 70 69 108 89 |
Test Temperature, °F(°C) | Average Rupture Strength, ksi (MPa) for Time Indicated | ||
10 hrs | 100 hrs | 1000 hrs | |
1200 (649) 1400 (760) 1600 (871) | 82 (565) 36 (248) 12 (83) | 71 (490) 27 (186) 6.7 (46) | 60 (414) 20 (138)** 3.7 (26)** |
AMS Number | Alloy | Type | UNS | Cross Ref. Spec | Misc./Shape |
---|---|---|---|---|---|
AMS 5715 | Inconel 601 | Nickel | N06601 | - | Bar |
AMS 5715 | Inconel 601 | Nickel | N06601 | - | Forging |
AMS 5715 | Inconel 601 | Nickel | N06601 | - | Ring |
AMS 5870 | Inconel 601 | Nickel | N06601 | - | Plate |
AMS 5870 | Inconel 601 | Nickel | N06601 | - | Sheet |
AMS 5870 | Inconel 601 | Nickel | N06601 | - | Strip |