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USER GUIDE




          Machining Recommendations
                                                                     Material                Chipbreaker
                                                        Tensile Strength  Group   Hardness       Troubleshooting
           ISO      Material             Condition        [N/mm ]     No. (1)  HB   First Choice  Fracture  Wear
                                                               2
                         <0.25% C         Annealed          420        1      125
            Non-alloy steel   >=0.25% C   Annealed          650        2      190       G        BG        B
            and cast steel,   <0.55% C  Quenched and tempered  850     3      250      IC908    IC806    IC9025
            free cutting steel >=0.55% C  Annealed          750        4      220
                                    Quenched and tempered   1000       5      300                                     DEEP DRILLING - BTA SYSTEM
                                          Annealed          600        6      200
          P Low alloy and cast steel (less                  930        7      275       G        BG        B
            than 5% of alloying elements)  Quenched and tempered  1000  8     300      IC908    IC806    IC9025
                                                            1200       9      350
            High alloyed steel, cast      Annealed          680        10     200       G        BG        B
            steel and tool steel    Quenched and tempered   1100       11     325      IC908    IC806    IC9025
                                       Ferritic/martensitic  680       12     200       G        BG        B
            Stainless steel and cast steel
                                         Martensitic        820        13     240      IC908    IC806    IC9025
                                                                                        G         B        B
          M Stainless steel and cast steel  Austenitic, duplex   600   14     180
                                                                                       IC806    IC908    IC9025
                                        Ferritic/pearlitic             15     180
            Grey cast iron (GG)
                                      Pearlitic/martensitic            16     260
                                          Ferritic                     17     160       G         G        B
          K Nodular cast iron (GGG)
                                          Pearlitic                    18     250      IC908    IC806    IC9025
                                          Ferritic                     19     130
            Malleable cast iron
                                          Pearlitic                    20     230
                                       Not hardenable                  21      60
            Aluminum-wrought alloys
                                         Hardenable                    22     100
                         <=12% Si      Not hardenable                  23      75
            Aluminum-                    Hardenable                    24      90
            cast alloys
          N              >12% Si       High temperature                25     130       G         G        B
                         >1% Pb          Free cutting                  26     110      IC908    IC806    IC9025
            Copper alloys                  Brass                       27      90
                                       Electrolitic copper             28     100
                                    Duroplastics, fiber plastics       29
            Non-metallic
                                         Hard rubber                   30
                                          Annealed                     31     200
                         Fe based
                                         Hardened                      32     280
            High temp. alloys             Annealed                     33     250
          S              Ni or Co        Hardened                      34     350       B         B        B
                         based                                                         IC806    IC908    IC9025
                                           Cast                        35     320
                                           Pure             400        36
            Titanium alloys
                                   Alpha+beta alloys hardened  1050    37
                                      Hardened 55 HRC                  38
            Hardened steel
          H                           Hardened 60 HRC                  39               B         B        B
            Chilled cast iron              Cast                        40     400      IC806    IC908    IC908
            Cast iron                 Hardened 55 HRC                  41
          (1)  For material groups see pages 495-524























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