Classification of hardmetal grades
Hardmetal grades are classified and identified by main machining groups and application groups in accordance with the new Standard DIN ISO 513 ( replaces DIN 4990)
P M K
Application group P01 P10 P20 P30 P40 M10 M20 M30 M40 K01 K10 K20 K30
Material composition WC-TiC-TaC-Co WC-TiC-TaC-Co WC-Co
| Main features | High resistance to heat and welding, high content of TiC and TaC, resist thermal failures |
Moderate content of TiC and TaC,resist thermal and machanical failures | Mainly compound of WC which has high strength resists mechanical failures |
| Cutting Conditions |
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Work material |
Carbon and alloy steel, cast steel, stainless, ferritic and martensitic steel | Stainless, austenitic steel and cast steel |
Grey, malleable and modular cast iron, non ferrous metals, plastics. |
Tendency |
Cutting Material |
Toughness Wear resistance |
Toughness Wear resistance |
Toughness Wear resistance |
| Application | Feed rate Cutting speed |
Feed rate Cutting speed |
Feed rate Cutting speed |
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