Inconel 625* * Trade name of Special Metals Group of Companies
W.NR 2.4856
UNS N06625
AWS 012
UNS N06625
AWS 012
A Nickel-Chromium-Molybdenum alloy with excellent corrosion
resistance in a wide range of corrosive media, being especially resistant to pitting and crevice corrosion. It is a favourable choice for sea water applications.
resistance in a wide range of corrosive media, being especially resistant to pitting and crevice corrosion. It is a favourable choice for sea water applications.
Applications include:
- Marine Industries
- Aerospace Industries
- Chemical Processing
- Nuclear Reactors
- Pollution Control
| Approximate Chemical Composition | |
| Ni | 58% min |
| Cr | 20-23% |
| Mo | 8-10% |
| Nb+Ta | 3.15-4.15% |
| Fe | 5% max |
| DENSITY | 8.44 g/cm3 | 0.305 lb/in3 |
| MELTING POINT | 1350 oC | 2460 oF |
| 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 | 79 kN/m2 | 11458 ksi |
| MODULUS OF ELASTICITY | 205.8 kN/m2 | 29849 ksi |
| CONDITION OF SUPPLY | HEAT TREATMENT (AFTER FORMING) |
| Annealed/Spring Temper | Stress relieve at 260 - 370oC (500 - 700oF) for 30-60 minutes and air cool. |
| CONDITION |
APPROX TENSILE STRENGTH |
APPROX SERVICE TEMPERATURE |
||||
| Annealed | 800-1000 N/mm2 | 116-145 ksi | -200o to +340oC | -330o to +645oF | ||
| Spring Temper | 1300-1600 N/mm2 | 189-232 ksi | up to +200oC | up to +395oF | ||
| STANDARDS | ||
| BS 3076 NA 21 | ASTM B466 | AMS 5666 |
