HastelloyG30 Material introduction
HastelloyG30（UNS N06030/00Cr30Ni43Mo5.5W2.5Cu2Nb）The alloy is developed on the basis of 00Cr22Ni48Mo7Cu2Nb alloy by increasing chromium content to 30%, reducing molybdenum and adding appropriate tungsten. Due to the high content of chromium, the main corrosion resistance feature of this alloy is that the performance of resisting H3PO4 containing Cl - and F - is significantly better than that of 00Cr22Ni48Mo7Cu2Nb alloy. It also has excellent corrosion resistance in nitric acid+hydrofluoric acid and sulfuric acid+hydrofluoric acid. This alloy can be used in evaporator of wet process phosphoric acid industrial production and equipment and components for acid mixing of HNO3+HF for pickling stainless steel. This alloy can also be used for corrosion resistance devices in nuclear fuel production.
HastelloyG30 chemical composition
element | C | Si | Mn | Cr | Ni | Mo | Cu |
mass fraction／% | ≤0.03 | ≤1.0 | ≤1.5 | 28-31.5 | ≥43 | 4-6 | 1.0-2.4 |
element | Nb | W | Fe | S | P | Co |
|
mass fraction／% | 0.5-1.5 | 1.5-4.0 | 13-17 | ≤0.03 | ≤0.04 | ≤5.0 |
|
HastelloyG30 Physical and mechanical properties
density | melting point |
8.0g/cm³ | - |
Sheet thickness/mm | tensile strength
σb/MPa | yield strength
σp0.2/MPa | Elongation
δ5/% | Shrinkage Ψ/% |
0.71 | 689.3 | 324.1 | 56 | - |
3.2 | 689.5 | 351.6 | 56 | - |
6.4 | 675.7 | 317.2 | 55 | - |
9.5 | 689.5 | 310.3 | 65 | 68 |
12.7 | 689.5 | 317.2 | 64 | 77 |
19.1 | 675.7 | 324.1 | 65 | 67 |
31.8 | 682.6 | 310.3 | 60 | - |
25.4 | 689.5 | 317.2 | 64 | - |
HastelloyG30 Heat treatment process
The solution treatment temperature of this alloy is about 1177 ℃, followed by water quenching or rapid cooling.
