What is the machinability rating of Monel?
General Information for Material Monel 400
| Material Group | S - Superalloys (Heat resistant and Titanium) |
| Sub-Group | Superalloy |
| Hardness | 70.0 HRB |
| Tensile Strength | 440 [N/mm^2] |
| Machinability Range | 45% |


Machinability of Monel 400 Material
Monel 400 is a nickel-based heat-resistant super alloy (HRSA) material with a machinability rating of 45% and a hardness of 70 HRB.
Monel 400 contains 66% nickel and other alloying elements as shown in the table below.
The main characteristics of nickel-based alloys are their excellent strength and good corrosion resistance over a wide temperature range. Within this subgroup, the material standard also defines the permissible hardness range, which is an important factor affecting machinability (in addition to chemical composition).
Monel 400 is the lowest hardness of the nickel-based alloys, so the machinability is relatively high at 45%
Equivalent International Designations for Material Monel 400
UNS N04400
| Standard | Name |
|---|---|
| SAE | 4544 |
| WNR | 2.4360 |
| DIN | NiCu30Fe |
| UNS | |
| BS | 3072.76 |
| ANFOR | NU30 |
Chemical Composition for Material Monel 400
| Element | Amount |
|---|---|
| Nickel (Ni) | 66% |
| Silicon (Si) | 0.25% |
| Carbon (C) | 0.15% |
| Sulfur (S) | 0.01% |
| Iron (Fe) | 1.2% |





