Cutting tools 1 a Article Steel Structural steels (tensile strength 800 N/mm2) 8 - 12 10 12 10 12 8 - 12 15 18 18 22 12 15 12 15 10 - 12 10 - 12 Alloyed steel (tensile

Cutting tools 1 a Article Steel Structural steels (tensile strength 800 N/mm2) 8 - 12 10 12 10 12 8 - 12 15 18 18 22 12 15 12 15 10 - 12 10 - 12 Alloyed steel (tensile strength 800 N/mm2) 8 - 10 10 12 10 12 8 - 10 12 15 15 18 12 15 12 15 6 - 10 6 - 10 Alloyed Pre hardened steels (tensile strength (800 - 1200 N/mm2) 2 - 5 2 - 5 Stainless acid- and heatproof steels 5 - 10 5 - 10 50 - 54 HRC 55 -59HRC 60 - 63 HRC 2. Cast iron Grey cast iron 6 - 20 6 - 20 Nodular cast iron malleable cast iron 6 - 12 6 - 12 3. Copper Copper alloys Copper Copper alloys (long chipping) 12 15 15 18 15 18 12 15 15 18 15 18 10 - 15 10 - 15 Copper alloys (short chipping) 10 12 10 12 Copper alloys ( 200 HB) 10 12 12 15 12 15 10 12 15 18 18 22 12 15 12 15 10 - 15 10 - 15 Copper alloys (200 HB - 300 HB) Copper alloys ( 300 HB) 4. Aluminium Aluminium alloys Aluminium alloys ( 05% Si) 20 26 22 26 22 26 20 26 22 26 22 26 10 - 20 10 - 20 Aluminium alloys (05% - 10% Si) 18 22 12 15 12 15 18 22 20 26 26 -32 12 15 12 15 Aluminium alloys ( 15% Si) 5. Titanium Titanium alloys Titanium pur 3 - 4 3 - 4 Titanium alloys (tensile strength 900 N/mm2) 3 - 4 3 - 4 Titanium alloys (tensile strength 900 - 1500 N/mm2) 6. Nickel Nickel alloys Nickel pur 3 - 4 3 - 4 4 - 5 5 - 6 Nickel alloys (tensile strength 900 N/mm2) Nickel alloys (tensile strength 900 - 1500 N/mm2) 7. Plastic Thermoplastics 20 - 26 22 - 26 22 - 26 20 - 26 22 - 26 22 - 26 5 - 15 5 - 15 Thermosetting polymers and pressed materials 5 - 15 5 - 15 Reinforced plastics NORGAU 63 N 013 050 013 051 013 054 013 056 013 066 013 067 013 063 013 069 013 078 013 079 1.