High-performance alloy material for industrial engineering and critical application conditions.
Scope of supply for Aviation Group
Forgings, round rods, steel plates, rings, seamless pipes, steel plates/steel belts, capillaries, wire welding materials, welcome to inquire!
1. Introduction to Hastelloy C-2000 Materials
Hastelloy C-2000 is a new Ni-Cr-Mo alloy. It increases chromium content and adds copper on the basis of C4 alloy, greatly improving corrosion resistance in reducing media. It ranks among the best in this alloy series for sulfuric acid resistance, while its intergranular corrosion resistance is inferior to C4 alloy.
2. Chemical composition of Hastelloy C-2000
| Alloy | Content limit | Ni | Cu | Fe | Mn | C | Si | S | Cr | Al | Mo | P | Co |
| Hastelloy C-2000 | Minimum | Bal | 1.3 | – | – | – | – | – | 22.0 | – | 15.0 | – | – |
| Maximum | 1.9 | 3.0 | 0.5 | 0.01 | 0.06 | 0.010 | 24.0 | 0.5 | 17.0 | 0.025 | 2.0 |
Implementation standards
| Bar | Medium & thin plate | Seamless tube | Welded pipe | Welded seamless tube | Forgings |
| ASTM B574 | ASTM B575 | ASTM B622 | ASTM B619 | ASTM B626 | ASTM B564 |
3. The physical properties of Hastelloy C-2000
| Density | 8.9g/cm³ |
| Melting point | 1335-1380℃ |
Minimum room temperature mechanical properties of the alloy:
| Delivery state | Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation A5 % |
| Solid solution treated | 690 | 283 | 45 |
4. Hastelloy C-2000 material characteristics
Hastelloy C-2000 is developed to resist various corrosive chemicals such as sulfuric acid, hydrochloric acid and hydrofluoric acid. Different from traditional Ni-Cr-Mo alloys which only resist oxidizing or reducing acid separately, C-2000 performs well in both environments. The combined effect of molybdenum (~16%) and copper (~1.6%) delivers excellent resistance to reducing media, while high chromium content (~23wt%) ensures outstanding resistance to oxidizing media.
Post-weld heating of Ni-Cr-Mo alloys at around 650℃ is not recommended. Generally no post-weld heat treatment is required; if stress relief is needed, full solid solution annealing at 1149℃ followed by water quenching is suggested.
Hot working temperature range: 900℃~1080℃, water quenching or other rapid cooling methods are required after forming. Solid solution heat treatment is necessary after hot working to maintain optimal corrosion resistance.
Metallographic structure
Hastelloy C-2000 possesses face-centered cubic lattice structure, its composition guarantees stable metallographic structure and anti-sensitization performance.
Corrosion resistance
Hastelloy C-2000 is developed to resist various corrosive chemicals such as sulfuric acid, hydrochloric acid and hydrofluoric acid. Different from traditional Ni-Cr-Mo alloys which only resist oxidizing or reducing acid separately, C-2000 performs well in both environments. The combined effect of molybdenum (~16%) and copper (~1.6%) delivers excellent resistance to reducing media, while high chromium content (~23wt%) ensures outstanding resistance to oxidizing media.
5. Hastelloy C-2000 application field
