ISO Material Codes
 | This placeholder article needs more information adding to it. More details are coming soon, if you can please ask the technical staff for a wiki account and help out. |
ISO Material Codes
Materials used in CNC machining are split into general groups known as ISO material codes. When you are selecting a turning insert, drill, or other cutting tool you should look at the ISO material group the tool is suited for. This is especially important in turning tool inserts which have geometry which is very specialised and specific to the material group it is designed for.
| P | M | K | N | S | H |
| Mild steel, steel alloys | Stainless Steels | Cast Iron | Non-ferrous metals | Superalloys & Titanium | Hardened Steel |
| 316, 304, 17-4PH etc. | Aluminium, copper, brass, bronze etc. | Heat resistant alloys such as Inconel | Steel between 45-65 HRc |