What is the machinability rating of Inconel 625?
General Information for Material Inconel 625
| S - Superalloys (Heat resistant and Titanium) | |
| Sub-Group | |
| 29.0 HRC | |
| 690 [N/mm^2] | |
| 17% |
MACHINABILITY OF INCONEL 625 MATERIAL
Inconel 625 is a nickel-based heat resistant superalloy (HRSA) material with a machinability rating of 17% and hardness of 29 HRC.
Inconel 625 has 61% nickel and additional alloying elements per the table below.
The main feature of nickel-based alloys is their excellent strength across a wide temperature range combined with good corrosion resistance. In this sub-group, the material standards also define the allowed hardness range, and hardness is a significant factor affecting the machinability (besides the chemical composition).
Inconel 625 is among the hardest of the nickel-based alloys, and accordingly has poor machinability of only 17%.
Equivalent International Designations for Material Inconel 625
| ASME SB443.4 | |
| 2.4856 | |
| NiCr22Mo9Nb | |
| UNS N06625 | |
| NC22FeDNB |
Chemical Composition for Material Inconel 625
| 61% | |
| 0.05% | |
| 4.0% | |
| 22% | |
| 9% | |
| 0.3% | |
| 0.3% |
