Page 656 - Iscar
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USER GUIDE
       GUNDRILLS                                                            Tensile










                              Material
                                                                            [N/mm2]
             ISO
                                                                                               HB
                                                                                               125
                                        < 0.25 %C       Condition           Strength         Hardness
                                                                              420
                                                         Annealed
                                       >= 0.25 %C        Annealed             650              190
                  Non-alloy steel and cast steel,   < 0.55 %C  Quenched and tempered  850      250
                  free cutting steel
                                       >= 0.55 %C        Annealed             750              220
                                                    Quenched and tempered    1000              300
             P                                           Annealed             600              200
                  Low alloy steel and cast steel                              930              275
                  (less than 5% of alloying elements)  Quenched and tempered  1000             300
                                                                             1200              350
                  High alloyed steel, cast steel,        Annealed             680              200
                  and tool steel                    Quenched and tempered    1100              325
                                                      Ferritic/martensitic    680              200
                  Stainless steel
                                                         Martensitic          820              240
             M        Stainless steel                    Austenitic           600              180
                                                       Ferritic/pearlitic                      180
                  Grey cast iron (GG)
                                                          Pearlitic                            260
             K    Nodular cast iron (GGG)                 Ferritic                             160
                                                          Pearlitic                            250
                                                          Ferritic                             130
                  Malleable cast iron
                                                          Pearlitic                            230
                  Aluminum-                             Not cureable                           60
                  wrought alloy                           Cured                                100
                                        <=12% Si        Not cureable                           75
                  Aluminum-cast,                          Cured                                90
                  alloyed
             N                           >12% Si       High temperature                        130
                                                        Free cutting
                                                                                               110
                                         >1% Pb
                  Copper alloys                           Brass                                90
                                                       Electrolitic copper                     100
                                                    Duroplastics, fiber plastics
                  Non-metallic
                                                        Hard rubber
                                        Fe based         Annealed                              200
                                                          Cured                                280
                  High temp. alloys                      Annealed                              250
              S                        Ni or Co based     Cured                                350
                                                           Cast                                320
                                                                            RM 400
                  Titanium Ti alloys
                                                     Alpha+beta alloys cured  RM 1050



















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