
Nickel Alloys
Complex Nickel Alloys
- Grades
- 48
- Elements tabulated
- 11
Overview
Precipitation-hardened and cast nickel superalloys engineered for creep resistance in the hot section of gas turbines and aero engines.
IMS handles complex nickel alloys as both prime material and as arisings recovered from industrial processing. Material is sorted and segregated by grade, so it returns to the melt as a known specification rather than a mixed stream.
Sectors we supply this into
Properties
- High Temperature Alloys
- Heat Resistant
- Corrosion Resistant
- Creep Resistant
Applications
- Aero Engine Parts
Chemical composition
48 grades · percentage by weight
| Grade | Ni | Cr | Co | Mo | W | Fe | Al | Ti | Cu | Nb | Others |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C242 | 56 | 21.5 | 10 | 10.5 | – | 0.75* | 0.2* | 0.3* | – | – | – |
| C263 | 50 | 20 | 20 | 5.9 | – | 0.75* | 0.5 | 2.2 | – | – | – |
| C1023 | 56 | 15.5 | 9.5 | 8 | – | 0.25 | 4.3 | 3.6 | – | – | – |
| Incoloy 903 | 38 | 1.0* | 15 | – | – | BAL | 0.7 | 1 | – | 3 | – |
| Incoloy 907 | 38 | 1.0* | 13 | – | – | BAL | 0.1 | 1.5 | – | 4.7 | – |
| Inconel 617 | 54 | 22 | 12.5 | 9 | – | – | 1 | – | – | – | 0.07 C |
| Inconel 700 | 45 | 15 | 29 | 3 | – | 4 | 3.3 | 2.25 | – | – | – |
| IN 100 (PK24) | 60 | 10 | 15 | 3 | – | – | 5.5 | 4.7 | – | – | 1.0 V |
| IN-731 | 66 | 9.5 | 10 | 2.5 | – | 0.5 | 5.5 | 4.65 | – | – | 0.95 V |
| IN-738 | 61 | 16 | 8.5 | 1.75 | 2.6 | 0.5 | 3.4 | 3.4 | – | 0.9 | 1.75 Ta |
| IN-792 | 61 | 12.7 | 9 | 2 | 3.9 | – | 3.2 | 4.2 | – | – | 4.2 Ta |
| IN939 (Nimocast 739) | 48 | 22.4 | 19 | – | 2 | – | 1.9 | 3.7 | – | 1 | 1.4 Ta |
| Incoloy 807 | 40 | 20 | 8 | – | 5 | 26 | – | – | – | 1 | – |
| SRR99 | 65 | 8.6 | 5 | – | 9.5 | 0.1* | 5.5 | 2.2 | – | – | 2.8 Ta |
| Nimonic 90 | 57 | 20 | 16 | – | – | 5.0* | 1.5 | 2.5 | – | – | – |
| Nimonic 91 | 47.5 | 28.5 | 20 | – | – | – | 1.2 | 2.3 | – | – | – |
| Nimonic 105/108 | 53 | 15 | 20 | 5 | – | 1.0* | 4.7 | 1.2 | – | – | – |
| Nimonic 115/118 | 57 | 15 | 15 | 3.5 | – | 1.0* | 5 | 4 | – | – | – |
| Nimonic PK31 | 49 | 20 | 14 | 4.5 | – | 1 | 0.4 | 2.3 | – | 5 | – |
| Nimonic PK33 | 56 | 19 | 14 | 7 | – | 0.5 | 2 | 2 | – | – | – |
| GTD 111 | 59 | 14 | 9.5 | 1.5 | 3.8 | 0.5* | 3 | 4.9 | – | – | 2.8 Ta |
| GTD 222 | 50 | 22.5 | 19 | – | 2 | 0.25* | 1.2 | 2.3 | – | 0.8 | 1.0 Ta |
| RA 333 | 45 | 25 | 3.5 | 3.5 | 3.5 | 18 | – | – | 0.5 | – | – |
| Rene 41 | 52 | 19 | 11 | 10 | – | 5.0* | 1.6 | 3.2 | – | – | – |
| M252 | 54 | 19 | 10 | 10 | – | 5.0* | 1 | 2.6 | – | – | – |
| Thetalloy (PWA 651) | 49 | 25 | 12.5 | 3 | 7 | 3 | – | – | – | – | – |
| Waspaloy | 56 | 19 | 14 | 4.2 | – | 1.5* | 1.4 | 3 | – | – | 0.1 Zr |
| Astraloy | 56 | 15 | 15 | 5.25 | – | 0.2* | 4.4 | 3.5 | – | – | 0.03 B |
| Udimet 500 (PK25) | 53 | 17.5 | 16.5 | 4 | – | 4.0* | 2.9 | 3.9 | – | – | 0.01 B |
| Udimet 520 | 56 | 19 | 12 | 6 | 1 | 1 | 2 | 3 | – | – | – |
| Udimet 600 | 52 | 17.5 | 16.5 | 4 | – | 4.0* | 4.2 | 2.9 | – | – | 0.04* B |
| Udimet 700 (Rene 77) | 52 | 15 | 15 | 4 | – | 0.5* | 4.2 | 3.5 | – | – | 0.02* B |
| Udimet 710 | 53 | 18 | 15 | 3 | 1.5 | 0.5* | 2.5 | 5 | – | – | 0.035 B |
| Udimet 720 | 53 | 18 | 15 | 3 | 1.4 | 0.5* | 2.5 | 5 | – | – | 0.045 B |
| MAR M-246 | 60 | 9 | 10 | 2.5 | 10 | 0.15 | 5.5 | 1.5 | – | – | 1.5 Ta |
| Rene 80 | 60 | 14 | 9.5 | 4 | 4 | – | 3 | 5 | – | – | – |
| Rene 88 | 55 | 16 | 13 | 4 | 4 | 0.25 | 2.1 | 3.75 | – | 0.7 | 0.02* B |
| B1900 (PWA 663) | 64 | 8 | 10 | 6 | – | – | 6 | 1 | – | – | 1.0 Zr |
| B1914 | 66 | 10 | 10 | 3 | – | – | 5.5 | 5.3 | – | – | 0.1 B |
| B1925 | 61 | 12 | 8.5 | 1.8 | 4.5 | – | 3.5 | 4 | – | – | 0.1 B |
| B1950 (MAR M-200) | 60 | 9 | 10 | – | 12 | – | 5 | 2 | – | 1 | 0.12 B |
| B1964 | 59 | 9 | 10 | 1 | 8.5 | – | 3.5 | 5.3 | – | – | 0.16 B |
| MAR M-002 | 59 | 10 | 10 | – | 10 | 1.0* | 5 | 1.5 | – | – | 2.5 Ta |
| MAR M-247 | 58 | 8.5 | 10 | 0.6 | 10 | 0.5* | 5.5 | 1 | – | – | 3.0 Ta |
| MARAGING 200 | 18 | – | 8.5 | 3.2 | – | BAL | – | 0.2 | – | – | 0.03* C |
| MARAGING 250 | 18 | – | 8 | 5 | – | BAL | – | 0.4 | – | – | 0.03* C |
| MARAGING 300 | 18.5 | – | 9 | 5 | – | BAL | – | 0.65 | – | – | 0.03* C |
| MARAGING 350 | 18 | – | 11.5 | 5 | – | BAL | – | 1.35 | – | – | 0.03* C |
Select grades to compare them side by side, or save them to a shortlist.
* indicates maximum. The figures shown are nominal compositions of the various alloys. Values are reproduced from IMS technical data and are provided for identification purposes; confirm the specification against your own requirement before ordering.
Scroll the table sideways to see all elements, or switch to cards above.
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Discuss complex nickel alloys with IMS.
Tell us the grade, the form and the quantity. We will confirm what we can supply or recover, and the certification that comes with it.



