Alloy 625 combines nickel chromium and molybdenum, giving high strength (from room temperature to 816°C), ease of fabrication, and excellent corrosion resistance. Alloy 625 is particularly useful in situations where oxidation resistance and avoidance of pitting is required. In the annealed condition, Alloy 625 is fully austenitic and is suitable for machining. Alloy 625 can be hot or cold worked (although as it does work harden, intermediate heat treatments are advisable), formed and welded.
AI Materials stock Alloy 625 in the annealed condition to provide good strength and hardness, and typical applications are where contact with sea water and other harsh chemical environments and high mechanical stresses apply.
We stock the following Specifications:
ASTM B446
UNS N06625
BS3076:NA21
In the following Sizes:
| 6 mm | 10 mm | 12 mm | 12.7 mm | 15.87 mm |
| 15.87 mm | 19.05 mm | 20 mm | 25.4 mm | 28.575 mm |
| 31.75 mm | 34.925 mm | 38.1 mm | 40 mm | 44 mm |
| 44.45 mm | 50.8 mm | 53.975 mm | 57.15 mm | 63.5 mm |
| 69.85 mm | 76.2 mm | 88.9 mm | 94 mm | 101.6 mm |
| 114.3 mm | 120 mm | 127 mm | 139.7 mm | 150 mm |
| 159 mm | 160 mm | 165.1 mm | 177.8 mm | 203 mm |
| 220 mm | 249 mm | 260 mm | 299 mm | 319 mm |
| 400 mm |
AI Materials can also supply rings and bored bar – please contact us with your requirements.



