Cutting tools Steel Structural steels (tensile strength 800 N/mm2) 30 - 35 6 - 10 8 - 12 12 - 15 15 - 18 6 - 8 6 - 8 6 - 8 10 - 12 Alloyed steel (tensile strength 800

Cutting tools Steel Structural steels (tensile strength 800 N/mm2) 30 - 35 6 - 10 8 - 12 12 - 15 15 - 18 6 - 8 6 - 8 6 - 8 10 - 12 Alloyed steel (tensile strength 800 N/mm2) 18 - 22 6 - 8 8 - 10 10 - 12 12 - 15 6 - 8 6 - 8 6 - 8 6 - 10 Alloyed Pre hardened steels (tensile strength (800 - 1200 N/mm2) 13 - 20 2 - 5 Stainless acid- and heatproof steels 15 - 18 5 - 10 50 -54HRC 25 55 - 59 HRC 2 60 - 63 HRC 18 2. Cast iron Grey cast iron 18 - 22 6 - 20 Nodular cast iron malleable cast iron 18 - 22 6 - 12 3. Copper Copper alloys Copper Copper alloys (long chipping) 32 - 40 10 - 12 10 - 12 10 - 12 10 - 12 10 - 15 Copper alloys (short chipping) 15 - 18 8 - 10 Copper alloys ( 200 HB) 22 - 26 8 - 10 12 - 15 15 - 18 10 - 12 10 - 12 10 - 12 10 - 15 Copper alloys (200 HB - 300 HB) 15 - 18 Copper alloys ( 300 HB) 15 - 18 4. Aluminium Aluminium alloys Aluminium alloys ( 05% Si) 50 - 60 18 - 22 18 - 22 18 - 22 18 - 22 10 - 20 Aluminium alloys (05% - 10% Si) 22 - 26 15 - 18 18 - 22 22 - 26 10 - 12 10 - 12 10 - 12 Aluminium alloys ( 15% Si) 18 - 22 5. Titanium Titanium alloys Titanium pur 3 - 4 Titanium alloys (tensile strength 900 N/mm2) 3 - 4 Titanium alloys (tensile strength 900 - 1500 N/mm2) 6. Nickel Nickel alloys Nickel pur 8 - 10 2 - 3 3 - 4 4 - 6 Nickel alloys (tensile strength 900 N/mm2) 8 - 10 Nickel alloys (tensile strength 900 - 1500 N/mm2) 7. Plastic Thermoplastics 50 - 60 18 - 22 18 - 22 18 - 22 18 - 22 5 - 15 Thermosetting polymers and pressed materials 18 - 22 5 - 15 Reinforced plastics 18 - 22 NORGAU 65 1 a Article N 013 110 013 115 013 120 013 121 013 130 013 131 013 132 013 133 013 134 013 135 1.