ALLOY 625 Aero
NICKEL & SUPER ALLOYS
UNS N06625: B446 AMS 5666
UT to AMS-STD-2154 Class AA
GENERAL SCOPE
Alloy 625 Aero is a Nickel-Chromium alloy with additions of Niobium and Molybdenum.
It has good stress rupture strength up to 980°C (1800°F), resists oxidation and has very good corrosion resistance. It also has excellent fatigue strength and cryogenic properties. It is also easily weldable.
It is a widely used alloy in the aerospace industry in applications such as fasteners, engine and airframe components, and in vibration & noise suppression.
CHEMICAL COMPOSITION
| C | Si | Mn | P | S | Cr | Ni | Mo | Co | Nb | Ti | Al | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | - | - | - | 20.00 | 8.00 | - | 3.15 | - | - | - | |
| Max | 0.1 | 0.5 | 0.5 | 0.015 | 0.015 | 23.00 | Bal. | 10.00 | 1.0 | 4.15 | 0.4 | 0.4 | 5.0 |
MECHANICAL PROPERTIES
Condition: Annealed
| U.T.S | 120ksi | 827MPa |
| 0.2% Proof Stress | 60ksi | 414MPa |
| Elongation | 30% | |
| Red of Area | 35% | |
| CVN Impacts @ -40°C (-40°F) | 27J | 20ft.lbs |
Additional information and data are available on request.