G-30 is a high Nickel based alloy which shows superior
corrosion resistance over most other Nickel and Iron based
alloys in phosphoric acids as well as many complex
environments containing highly oxidising acids such as
nitric, hydrofluoric and sulphuric acids.
Applications include:
- Nuclear Fuel Reprocessing
- Nuclear Waste Processing
- Pickling Operations
- Petrochemical Processing
| Approximate Chemical Composition | |
| Ni | 43% |
| Cr | 28-31.5% |
| Fe | 13-17% |
| Mo | 4-6% |
| Co | 5% max |
| W | 1.5-4% |
| DENSITY | 8.22 g/cm3 | 0.297 lb/in3 |
| MELTING POINT | 1399oC | 2550oF |
| COEFFICIENT OF EXPANSION | 12.8 µm/m °C ( 20 - 100°C) |
7.1 x 10-6 in/in
°F ( 70 - 212°F) |
| MODULUS OF RIGIDITY | 77.6 kN/m2 | 11255 ksi |
| MODULUS OF ELASTICITY | 202 kN/m2 | 29298 ksi |
| CONDITION OF SUPPLY | HEAT TREATMENT (AFTER FORMING) |
| Annealed/Spring Temper | Stress relieve at 400oC - 450oC (750oF - 840oF) for 2 hours and air cool. |
| CONDITION |
APPROX TENSILE STRENGTH |
APPROX SERVICE TEMPERATURE |
||||
| Annealed | 650-900 N/mm2 | 94-131 ksi | -200o to +400oC | -330o to +750oF | ||
| Spring Temper | 1000-1500 N/mm2 | 145-218 ksi | -200o to +400oC | -330o to +750oF | ||
| STANDARDS |
| ASTM B619 |
