ISO Material Classification
ISO 513 defines six workpiece material groups used industry-wide to match cutting tool geometry and grade to the material being machined. Each group has a standard identifying letter and color.
| Group | Material Type | Standard Color |
|---|---|---|
| P | Steel (unhardened) | Blue |
| M | Stainless steel | Yellow |
| K | Cast iron | Red |
| N | Non-ferrous metals (aluminum, brass, copper) | Green |
| S | Superalloys and titanium | Brown |
| H | Hardened steel | Grey |
This classification describes the workpiece material, not the tool — a single tool geometry can be rated for use across one or more of these groups.
Which ISO material groups EUROCUT's Z5 series is rated for is pending final manufacturer confirmation.