INCONEL® Alloy 625LCF®
2.4856 / UNS N06625 / N06626
A nickel-chromium-molybdenum alloy that was developed to have excellent fatigue resistance especially for bellows applications. As with the widely known alloy 625 it has excellent resistance to oxidation and corrosion in a range of environments and conditions. Alloy 625 LCF has a restricted composition and melting and processing of this alloy is closely controlled to provide a sheet product with optimum resistance to low-cycle and thermal fatigue at temperatures up to 650°C (1200°F). It finds application for flexible coupling bellows in both the automotive and aerospace sectors and expansion joints in various types of process piping.
Ni | min. | 58.00 % |
Cr | 20.00 - 23.00 % | |
Mo | 8.00 - 10.00 % | |
Nb¹ | 3.15 - 4.15 % | |
Fe | max. | 5.00 % |
C | max. | 0.03 % |
Mn | max. | 0.50 % |
Si | max. | 0.15 % |
S | max. | 0.015 % |
Al | max. | 0.40 % |
Ti | max. | 0.40 % |
P | max. | 0.015 % |
Co | max. | 1.0 % |
N | max. | 0.02 % |
¹ Plus Ta
g/cm³ | 8.44 | |
lb/in³ | 0.305 |
Electrode | INCONEL 112 |
Filler Metal | INCONEL 625 |